Volume 2 - HP64000.net
Transcription
Volume 2 - HP64000.net
The PC Engineer's Reference Book Volume 2: Motherboards Introduction This book primarily contains motherboard jumper settings, but other information, such as known bugs and performance issues have been included when available. Not all comments have been verified, as they have been obtained from various places, including service departments and magazine reviews, but are believed to be reliable. To save space and costs, no diagrams have been used, as a good engineer shouldn’t need them if the motherboard has been marked up properly. In other words, this is meant to be a quick reference for those familiar with computers. Parallel, serial and floppy connectors, etc. have also been excluded, except when they depart from the standard (described at the back), and where a setting indicates an on condition, the opposite has been left out, as it should be obvious. Jumpers or switches not mentioned are usually factory set and should be left alone. The book is organised alphabetically, by manufacturer. To identify your motherboard from the screen, refer to Volume 1, The BIOS Companion for the manufacturer ID, then, if your BIOS is an Award, the individual code for your board under the appropriate manufacturer. Legal Bit This book and any included software is sold as is without warranty of any kind, either express or implied, including but not limited to the implied warranties of merchantability and fitness for a particular purpose. Neither the Author, the Publisher nor its dealers or distributors assumes any liability for any alleged or actual damages arising from their use. Translation: Although this information has been gathered from original manufacturer's details or practical experience, it is always changing, or scarce, so there could be technical inaccuracies or typographical errors. As a result, changes will be made to the information in this book and included software without reference to anyone, and we don't guarantee that the product suits your purposes. In addition, no liability can be accepted for loss of data or business or damage to equipment as a result of using the information contained herein—backups are your responsibility. Copyrights, etc Windows, Windows `95, Windows NT, DOS and Xenix are trademarks and Microsoft is a registered trademark of Microsoft Corporation. Novell and NetWare are registered trademarks of Novell, Inc. Macintosh is a registered trademark of Apple Computer, Inc. VAX is a trademark of Digital Equipment Corporation. 8086, 80286, i386, i486, i486DX, i486DX2, i486DX4, i486SX, and i487SX, Intel OverDrive Processor are trademarks of Intel Corp. UNIX is a registered trademark of UNIX System Laboratories. IBM, PC, XT, AT and OS/2 are trademarks of International Business Machines Corp. PCI is a registered trademark of PCI Special Interest Group. Triton is a trademark of a company in Germany. Any code listings, although obtained from sites that are publicly accessed, may be copyrighted by their respective manufacturers. All other proprietary trade names, trademarks and names protected by copyright are fully acknowledged. All are mentioned for editorial purposes only, with no intention of infringing them. This book copyright © January 2002 Phil Croucher. ISBN 0-9681928-6-6 All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without prior written permission from the author. Electrocution Technical Publishers www.electrocution.com Table of Contents A 11 AAEON Technology Inc 11 Ability Electron Co Ltd Abit 11 11 Acer (Aopen) Achitec Corp 17 49 Achme Computer 49 Acme ACORP International 49 49 Acouire, Inc Acro Computer Corp 50 50 Acrosser Technology Co 50 Activei Systems Inc Acusharp 50 50 Adcom ADI 50 50 Adlink Technology Ltd 50 Advanced Integration Research (AIR) Advanced Jenn Bao Enterprises 50 50 Advanced Logic Research Advanced Micro Products (AMP) 51 51 Advantech 51 AEG Olympia 51 ii The PC Engineer’s Reference Book – Vol 2 AIR Alaris 54 73 Alcom Group ALi 73 73 ALR 74 Alton Amaquest 76 76 American Megatrends American Predator 76 76 American Sunshine Technologies 76 AMI Amjet 76 79 AMP Amptron 79 79 Amtec 80 Anigma Anscera 80 80 Anson Antec 80 80 AOpen 81 Appro Apricot 96 96 Aprocom Arche 97 98 Arima 102 Aristo Arstoria 102 103 Arvida ASI 103 103 ASK Technology 103 Aspen Systems AST 103 103 ASUS Astar 131 144 AT&T 144 ATC ATI 145 145 Atima Technology ATL 145 145 A-Trend 145 Attractive Computer Technology Auhau Electronics (Sukjung) 147 147 AVT Industrial Azza 147 147 B 149 BCM 149 Table Of Contents BCOM Bek-Tronic 149 149 Bestkey 149 Biostar Bioteq 150 151 BJMT Technology Bluepoint Technology 151 152 BMA 152 Brother Bull 152 154 Caliber Computer Corp 159 159 California Graphics & Peripherals 159 ChainTech Chaplet 159 163 Chicony Clevo 163 164 C Commate 164 Compaq Compower 164 189 Computer Technology System Computrend 189 189 Concord OA 189 Core International Crusader 189 190 CyberMax Cycle Computer Corp 190 190 D E iii 191 Daewoo Darter 191 192 DataExpert Datatech 192 192 Dell 192 DFI Diamond Flower International 195 197 Diamond Micronics Digicom 197 197 Digimate 197 Digital Domex 197 197 DTC DTK 197 197 199 iv The PC Engineer’s Reference Book – Vol 2 Eagle ECS 199 199 Edom International EFA 225 225 EFAR 225 Elite Group Elonex 225 225 Elpina ENPC 235 235 EPoX 236 Epson UK Eupacomputer 237 245 Eurone LA Everex 246 246 Expert 250 Famous Technology 253 253 Fentech Ferranti 253 253 F FIC 253 Fine-Pal Company Firenze 255 255 First International Computer 256 Fittec FKI 256 256 Flagpoint Flamingo 256 256 Flexus 256 Flytech Fong Kai Industrial 256 256 Fordlian Formosa 257 257 Freetech 257 Freeway Fugutech 258 258 Full Yes International FYI 259 259 G 261 Gateway Gemlight 261 261 Genoa G-host 261 262 Giantec 262 Gigabyte Global Circuit Technologies 262 268 Table Of Contents Global Impact Global Legate H v 268 268 269 Hewlett Packard Holco 269 270 HSB Hsing Tech 270 271 Hyundai 271 IBM 277 277 ICP Impression Products 285 285 I Informtech 285 Intel Inventa 285 298 Inventec Itri 298 298 Iwill 298 Jamicon 299 299 Jaton Corp JBond 299 299 JDR Microdevices (HK) 300 Jetta Jetway 300 300 J-Mark JossTech 302 302 J K 303 Kaimei Kam-Tronic 303 303 Kapok Kinpo 303 303 Koutech Systems 303 LAN Plus 305 305 Lanix Lanner 305 305 Leading Edge 305 Lexar Lucky Star 305 306 Lucky Tiger 306 L vi The PC Engineer’s Reference Book – Vol 2 M Macrotech 307 307 Matra Matsonic 307 307 Megastar 307 Mega System Co Megatrends Technology 307 307 Memorex Telex Mentor 307 312 Mercury Computer Corp 312 Microfive Microgram 312 312 Micronics Micom 312 321 MicroStar International (MSI) 321 MINT data Mirage 323 324 MiTAC Mitsuba 324 324 Mitsubishi 324 MLE Motorola 324 324 MSI 324 M-Technology MTI 324 330 Mustek Mycomp 330 330 Mylex 331 Mynix 334 N 335 NEC NewStar Engineering 335 341 Newtech International 341 Nexcom Niagara SMD 341 341 NMC Peripherals Europe Novell 342 342 NTC Technologies 343 Ocean 345 345 Octek Olivetti 345 345 O Opti 352 Opus 353 Table Of Contents P vii Packard Bell 357 357 Palit 375 Panrix Palmax 375 376 Pantex PC Chips 376 376 PC Master 382 PC Max PC Partner 382 382 PC Quest PC Ware 382 382 Pine Technology 382 Pionex Computers Powertech 384 384 Premio President Technology 384 384 Pride 384 Prime Procomp 385 385 Pronix Proside 385 385 Proteam 385 Protech 385 Q 387 QDI QTC 387 392 Quanta 392 Quantex 392 R 393 Rectron RedFox 393 393 Rise Computer Inc 393 Robotech RSAptek 393 394 S&D 395 395 Samsung 395 Sam-Tec San-Li 401 401 San Carlos Computers SBC 401 401 Seanix 401 S viii The PC Engineer’s Reference Book – Vol 2 See-thru Data Systems Shuttle 401 402 Silicon Star Intl SMT 405 405 Soltek 405 Sowah Research Soyo 406 407 Spacewalker Spear Motherboard 415 415 Spica 415 Spring Circle Sukjung 415 415 SuperMicro SuperPower 416 421 Sye 424 Taemung/Fentech 425 425 Taiwan Mycomp Corp Taken Corp 425 425 Tandon 425 Tatung TC Computers 434 435 T Tekram 435 TMC Tomatoboards 436 442 Top Gun Toshiba 442 442 Totem 445 Transcend Trigem 445 446 Tulip Twinhead 446 449 Tyan 449 UHC 453 453 Umax UMC 453 453 U Unicom 453 Unisys Unitron 453 455 Unknown USI 455 459 US Logic 459 Vanilla 461 461 V Table Of Contents Vextrec Victor ix 462 462 Vision Top 467 Vobis VTech 468 468 VTI 468 W 469 Walters International 469 Warpspeed Western Digital 471 471 Win WinCo Electronic Co 477 477 Win-Lan 477 Wintec (Win Technologies) Wyse 477 477 Yamashita 485 485 Yellow Dragon 485 Yukon 485 Y Z 487 Zenith Data Systems Zida Technologies CONNECTORS 487 490 491 x The PC Engineer’s Reference Book – Vol 2 A AAEON Technology Inc www.aaeon.com.tw Ability Electron Co Ltd Aka Elpina www.ability-tw.com Abit www.abit.com.tw www.abit-usa.com Award BIOS ID The last two numbers of the BIOS part number. Code 0 1C-40 2 2-02 2-15 2C-C5 2C-5E 2C-7A 2C-B8 2C-D2 9C(-9D) AC AC(-7T) AC BC-3P Motherboard P14T PK5 PW4/PW4T AH4-T (DX4) PE5 PB4 PB4 PB4 PB4 PB4 PH5 BX6 (BX)/AX5 LX-6 (LX) PR5 (VX) AX5 or PX5 Code BC-6A CC CC-D6 DC EC-1G EC-1S EC-1Y EC-2L EC-2R EC-3K EC-9B FC FC-3Q FC-3Y Motherboard PB4 (Ali 1487/89 chipset) PS6/PN5 PH5 PT5/IT5H IT5V v 1G IT5V v 1S SM5-A SM5 SM5-A IT5H v1.51 PH5 IT5H v2 SM5-A 12 The PC Engineer’s Reference Book – Vol 2: Motherboards AX5 Item CPU Bus Memory (Mb) Performance Comments Description Notes Jumperless setup 4 ISA/4PCI 4 x 72pin Bus Speeds (MHz) up to 83MHz Cannot disable USB interrupt AP5C Item CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Problems Description Pentium Up to 133 MHz Triton AMI Flash 4 ISA/4PCI 128 Mb 512K 2S, 1P, Floppy, IDE Notes 1 each shared EDO/FPM PB or asynchronous IDE via chipset ATI Mach64 may produce ghosted images at high resolutions and/or colour depths. BE6 Jumperless Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) I/O Video Performance Description ATX Pentium III/Celeron 233-550 440 BX Award 5 PCI/2 ISA 768 Mb PS/2 Mouse and Keyboard, 2 USB, 2 serial, 1 parallel, 2 EIDE, floppy Notes Slot 1 100 FSB 1 shared 3 DIMM sockets 2 EIDE, UDMA/66 AGP Quite good BE6-II Jumperless Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Video Performance Description ATX Pentium III/Celeron 233-550 440 BX Award 5 PCI/1 ISA 768 Mb Notes Slot 1 100 FSB 3 DIMM sockets PS/2 Mouse and Keyboard, 2 USB, 2 serial, 1 parallel, 2 EIDE, floppy 2 EIDE, UDMA/66 AGP Quite good BP6 Jumperless Item Form Factor CPU Chipset Description ATX Celeron 440 BX Notes 2 x Socket 370 A Item BIOS Bus Memory (Mb) I/O Video Description Award 5 PCI/2 ISA Notes 1 shared – up to 133 MHz 3 DIMM sockets PS/2 Mouse and Keyboard, 2 USB, 2 serial, 1 parallel, 2 EIDE, floppy AGP BX6 Jumperless Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) I/O Video Performance Description ATX Pentium II/Celeron 233-550 440 BX Award 4 PCI/3 ISA 1 Gb PS/2 Mouse and Keyboard, 2 USB, 2 serial, 1 parallel, 2 EIDE, floppy Notes Slot 1 1 shared – up to 133MHz 4 DIMM sockets AGP Quite good KT7-RAID Item Form Factor CPU Chipset Bus Memory (Mb) I/O Description ATX Notes Socket A Via KT133 6 PCI/1 ISA 3 DIMM sockets PS/2 Mouse and Keyboard, 2 USB, 2 serial, 1 parallel, 2 EIDE, floppy Video AGP LX6 Item Form Factor CPU Speeds (MHz) Bus Memory (Mb) I/O Description ATX Pentium II 500 4 PCI/3 ISA 512 Mb SDRAM 1 Gb EDO PS/2 Mouse and Keyboard, 2 USB, 2 serial, 1 parallel, 2 EIDE, floppy Video Performance Notes Slot 1 4 DIMM sockets AGP 100 MHz bus speed, but only fair performance. PB4 Item Form Factor CPU Speeds (MHz) BIOS Bus Memory (Mb) Cache (K) I/O Description AT 486DX/2/SX/SL/4 266 Award 3 PCI/4 ISA Notes P24D/T, also Cyrix/AMD 2 72-pin SIMM. EDO and asymmetrical DRAM 256K 2S, 1P, Floppy, 2IDE 13 14 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper JP1-2 JP3 Position JP1 1-2 2-3 4-5 1-2 1-2 2-3 JP2 2-3 2-3 2-3 1-2 Function CPU Voltage 3.45 3.6 4 5 128K cache (32Kx8 at U3,6,7,10) 256K cache (64Kx8 at U3,6,7,10) JP5-9 RJ1-3 CPU 486DX/2/4 P24T P24D AMD 486DX2 AMD 486DX4 (NV8T)* AMD 5x86-133/160 Enh AM486, 5x86-150 Cyrix DX4/DX2 (M7)** Cyrix Cx5x86 Use 16Kx8 or 32Kx8 tag RAM at U4 RJ1 RJ2 RJ3 1-8 1-8 Off 7-14 1-8 Off 3-10 1-8 Off 1-8 1-8 Off 1-8 1-8 Off 3-10 1-8 Off 3-10 1-8 Off 1-8 Off 1-8 1-8 1-8 Off JP8 JP4,1112 ,19 Off* System Speed 25 MHz 33 MHz 40 MHz 50 MHz 1-2* Off* 1-2,5-6 2-3,4-5 1-2* 2-3 **If your Cyrix DX4-100 has DX4-P/O on it, use Cyrix Cx5x86 Reserved JP4 JP11 JP12 JP19 Off Off 1-2 Off On On 1-2 Off On Off 1-2 Off Off On 2-3 On Reserved Reserved 12v Flash ROM 5v EPROM Normal operation Discharge CMOS JP12 JP14 JP15 JP17 PN5 Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Jumper JP4 JP5,6,20 JP26 DS1,2 Description AT Pentium, AMD 5x86, Cyrix 6x86 75-200 Intel 82430 HX Award PnP 3 PCI/4 ISA 256K 2S, 1P, floppy, 2 EIDE, IR Position Off* Off* On On DS1 Off Off Off On DS2 On Off On On Notes EDO PB. COAST upgrade Function Enable Onboard I/O 256K cache 512K cache Discharge CMOS Clock multiplier 1 (DS1 on for Cyrix) 1.5 2 2.5 JP5 Off Off 2-3 Off Off 2-3 2-3 1-2 2-3 JP6 1-2 1-2 1-2 2-3 2-3 1-2 1-2 1-2 1-2 JP7 Off Off Off Off Off On Off Off Off JP8 Off Off Off On Off Off Off Off Off JP9 Off Off 1-2 Off Off 1-2 1-2 2-3 1-2 A Jumper DS3,4,7 DS5 DS6 CPU Voltage 2.5 2.7 2.8 2.9 3.38* 3.52 Position On On DS3 On Off Off On On* Off On Off* Off Off DS4 On Off On Off DSV1 Off Off Off Off Off On DS7 Off Off Off Off DSV2 Off Off Off Off On Off Function 3 (DS1 off for Cyrix) 4 (Cyrix) CPU external clock 50 MHz 55 MHz 60 MHz 66 MHz* AT bus=CPU ext/8 AT bus=CPU ext/6 60 MHz DRAM refresh rate 66 MHz DRAM refresh rate DSV3 Off Off Off On Off Off DSV4 Off Off On Off Off Off DSV5 Off On Off Off Off Off DSV6 On Off Off Off Off Off DSV7 On On On On On Off DSV8 Off Off Off Off Off On PW4(T) Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Jumper JP5 JP6 JP9 JP10 JP27-29 JP60-62 JPX3 Description AT 80486, Cyrix M7, AMD Notes DX4 Award/AMI 3 ISA/3 VL 256 1024 1 ISA is 8-bit. 2 VL are Masters 4 30-pin sockets, 2 72-pin 256 standard Position On* Off Off* On Off* On* Off System Speed 20 MHz 25 MHz 33 MHz 40 MHz 50 MHz Function Colour Mono Reserved VL Bus 0 wait write VL bus 1 wait write >33 MHz System speed (VL bus) <=33 MHz System speed (VL bus) JP27 JP28 JP29 Off Off Off Off Off On On On On Off On On On Off Off Cache size 128K (U2,4,6,8) 256K (64K in U2,4,6,8) 256K (16Kx8 tag, 64K in U2,4,6,8) 256K (32K in all sockets) 256K (16Kx8 tag, 32K all sockets)) 512K (64K in all sockets) LH figures for U30 clock generator. RH for U31. JP60 JP61 JP62 JPX3 2-3 1-2 2-3 9-16 2-3 2-3 2-3 3-10 2-3 4-5 2-3 3-10 2-3 1-2 2-3 13-20 2-3 4-5 2-3 13-20 2-3 1-2 2-3 1-8 JP27 Off On Off On JP28 Off Off On Off JP29 On On On Off 15 16 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper Position 512K (128K in U2,4,6,8) 1 Mb (128K all sockets) 1-2 1-2 2-3 JP47-52 JP67 Function 2-3 1-2 2-3 3-10 1-2 1-2 1-2 1-8 SM (System Management Output) – for green power supply Normal Discharge CMOS Intel Inside RN8 JP37 JP38 JP39 JP40 JP20 JP26 JP42 JP65 RN5 RN6 RN7 JPX1 JPX2 JP15 JP18 JP21 JP33 JP34 JP35 JP16 JP17 SX 1-8 Off Off Off Off 1-2 1-2 Off Off Off 1-8 Off 5-12 Off Off Off Off Off Off Off 2-3 2-3 SX(SL) 1-8 Off Off Off Off 1-2 Off 1-2 Off Off 1-8 Off 5-12 Off Off Off Off Off Off Off 2-3 2-3 DX/DX2 1-8 Off Off Off Off Off 1-2 Off 1-2 Off 1-8 1-8 5-12 Off Off Off Off Off Off Off 2-3 2-3 DX/2 (SL) 1-8 Off Off Off Off Off Off 1-2 1-2 Off 1-8 1-8 5-12 Off Off Off Off Off Off Off 2-3 2-3 DX4-75(SL) Off On Off Off Off Off Off 1-2 1-2 Off 1-8 1-8 5-12 Off Off Off Off Off Off Off 2-3 2-3 DX4-100(SL) Off Off On Off Off Off Off 1-2 1-2 Off 1-8 1-8 5-12 Off Off Off Off Off Off Off 2-3 2-3 Cyrix Instead RN8 JP37 JP38 JP39 JP40 JP20 JP26 JP42 JP65 RN5 RN6 RN7 JPX1 JPX2 JP15 JP18 JP21 JP33 JP34 JP35 JP16 JP17 DX(2) 1-8 Off Off Off Off Off Off 1-2 1-2 1-8 Off 1-8 1-8 1-8 Off Off Off Off Off Off 2-3 2-3 DX2-V50 Off On Off Off Off Off Off 1-2 1-2 1-8 Off 1-8 1-8 1-8 Off Off Off Off Off Off 2-3 2-3 DX2-V66 Off Off Off On Off Off Off 1-2 1-2 1-8 Off 1-8 1-8 1-8 Off Off Off Off Off Off 2-3 2-3 DX2-V80 Off Off Off Off On Off Off 1-2 1-2 1-8 Off 1-8 1-8 1-8 Off Off Off Off Off Off 2-3 2-3 DX4-100 Off Off On Off Off Off Off 1-2 1-2 1-8 Off 1-8 1-8 1-8 Off Off Off Off Off Off 2-3 2-3 Cx5x86 Off Off On On Off Off 1-2 Off 1-2 Off 1-8 1-8 5-12 Off 1-2 1-2 Off 1-2 1-2 1-2 2-3 2-3 AMD/UMC RN8 JP37 DX(2) 5v 1-8 Off DX4 3.45v Off On DX2 3.45v Off Off Enhanced Off Off UMC U5-S 1-8 Off P24T 1-8 Off Off Off Off Off Off 1-2 1-2 Off 1-8 1-8 5-12 Off 1-2 Off 1-2 Off Off 1-2 2-3 2-3 P24D 1-8 Off Off Off Off Off Off 1-2 1-2 Off 1-8 1-8 5-12 Off 1-2 1-2 1-2 1-2 1-2 1-2 2-3 2-3 A JP38 JP39 JP40 JP20 JP26 JP42 JP65 RN5 RN6 RN7 JPX1 JPX2 JP15 JP18 JP21 JP33 JP34 JP35 JP16 JP17 DX(2) 5v Off Off Off Off 1-2 Off 1-2 Off 1-8 1-8 5-12 Off Off Off Off Off Off Off 1-2 1-2 DX4 3.45v On Off Off Off 1-2 Off 1-2 Off 1-8 1-8 5-12 Off Off Off Off Off Off Off 1-2 1-2 DX2 3.45v On Off Off Off 1-2 Off 1-2 Off 1-8 1-8 5-12 Off 2-3 Off Off Off Off Off 1-2 1-2 Enhanced On Off Off Off Off 1-2 1-2 Off 1-8 1-8 5-12 Off 1-2 1-2 Off 1-2 1-2 1-2 2-3 2-3 UMC U5-S Off Off Off 1-2 1-2 Off Off Off 1-8 Off 5-12 Off Off Off Off Off Off Off 2-3 2-3 SL6 Jumperless Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Sound Memory (Mb) I/O Description ATX Pentium III/Celeron 1 GHz/667 MHz Intel 815 Award 6 PCI 1 AMR 1 AGP Yamaha YMF752-S 512 PS/2 Mouse and Keyboard, 2 USB, 2 serial, 1 parallel, 2 EIDE, floppy Notes Description Micro ATX Pentium III/Celeron 233-550 Intel 810E Award 3 PCI 1 AMR Notes Socket 370 66-153 FSB 3 DIMM sockets 2 EIDE controllers, UDMA/66 WB6 Jumperless Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) I/O Slot 1 100 FSB PS/2 Mouse and Keyboard, 2 USB, 2 serial, 1 parallel, 2 EIDE, floppy Acer (Aopen) Award BIOS ID The last two numbers of the BIOS part number. Code 0C-00 Motherboard MTX A512 Code Motherboard 2 DIMM sockets 2 EIDE controllers, UDMA/66 17 18 The PC Engineer’s Reference Book – Vol 2: Motherboards Acermate 386SX/20n Item Form Factor CPU Speeds (MHz) Chipset Bus I/O Video Description Proprietary 386SX 20 Ali 2 ISA 2S, 1P, Floppy, IDE Notes Uses sideways board On board Jumper J4 J7 J8 J10-13,15,16,19,20 Position On* Check* Pass On Off* Reserved Function VGA enable Check Password Clear Password IRQ9 to VGA IRQ9 to expansion card Do not use A1GX-1 JPX2 JP13 JP14 JP15 JP17 JP18 JP19 JP20 JP21 JP22 JP23 JP25 JP26 JP27 JP32 P24C NV8T/B 2-3 2-3 2-3 2-3 2-3 2-3 2-3 2-3 2-3 2-3 2-3 2-3 2-3 3-4 1-2 P24D 2-3 2-3 2-3 2-3 2-3 2-3 1-2 2-3 2-3 1-2 2-3 2-3 1-2 3-4 1-2 AMD DX2 SV8T 2-3 2-3 2-3 2-3 2-3 2-3 1-2 2-3 2-3 2-3 2-3 2-3 2-3 2-3 1-2 AMD DX4 SV8T 2-3 2-3 2-3 2-3 2-3 2-3 1-2 2-3 2-3 2-3 2-3 2-3 2-3 3-4 1-2 AMD DX2 SV8B 2-3 2-3 2-3 2-3 2-3 1-2 1-2 2-3 2-3 1-2 2-3 2-3 1-2 2-3 1-2 *4th 1-2 Jumper JP1 JP2 JP3 JP4,5 JP6 JP7 JP8 JP9 JP10 Position 1-2 2-3* 1-2 2-3* 1-2 2-3* JP4 1-2 2-3 1-2 1-2 2-3* 2-3* 1-2 1-2 2-3* 2-3* 1-2 JP5 2-3 1-2 1-2 Function OEM BIOS Acer BIOS Enable Password Check Bypass Password COM1 boot Normal boot Onboard Memory 4 Mb 8 Mb Disable Disable onboard super I/O Enable Printer DRQ3 Printer DRQ1 Printer DACK1 Printer DACK3 Enable onboard VGA IDE port 0F4h, 0F8h, 0FCh AMD DX4 SV8B 2-3 2-3 2-3 2-3 2-3 1-2 1-2 2-3 2-3 1-2 2-3 2-3 1-2 3-4 1-2 Cyrix/IBM/ TI DX2 Cyrix/IBM DX4 Cyrix/IBM 5x86 O/D P24T 2-3 2-3 Open 1-2 1-2 2-3 1-2 1-2 1-2 2-3 1-2 2-3 2-3 3-4 1-2/2-3 2-3 2-3 Open 1-2 1-2 2-3 1-2 1-2 1-2 2-3 1-2 2-3 2-3 3-4 2-3 2-3 2-3 2-3 Open 1st 1-2 Open 1-2 2-3 2-3 2-3* 2-3 Open 2-3* 3-4 1-2 2-3 2-3 2-3 2-3 2-3 2-3 1-2 2-3 2-3 1-2 2-3 2-3 1-2 1-2 1-2 A Jumper Position 2-3* 1-5 2-6 3-7 1-2 2-3* 1-2 2-3* 1-2 2-3* JP30 1-2 2-3 JP11 JP28 JP29 JPX1 JP30,31 Function IDE port 074h, 078h, 07Ch 25 MHz 33 MHz 40 MHz (not recommended) Enable Suspend/Resume button Enable Reset button Disable onboard IDE Enable Flash ROM EPROM Cache size 128K, 4 x 32K x 8 256K, 8 x 32K x 8 JP31 1-2 2-3 Front Panel Header Position 1-2 3-5 7-10 12-13 15-17 19-20 Function Keylock Power LED Speaker Green LED Suspend switch Reset A1GX-2 JP17 i486 P24C 2-3 i486 3.3v WB 2-3 Cyrix/IBM /TI DX2 1-2 Cyrix DX4/100 1-2 TI DX4 /100 1-2 JP18 JP19 JP26 1-2 2-3 2-3 1-2 1-2 1-2 2-3 1-2 2-3 2-3 1-2 2-3 2-3 2-3 2-3 JP27 JP32 JP36 3-4 1-2 1-2 3-4 1-2 1-2 3-4 1-2/2-3 1-2 3-4 1-2 1-2 3-4 1-2 1-2 JP17 JP18 JP19 JP26 JP27 JP32 JP36 Jumper JP1 JP2 JP3 DX4 NV8T DX2 NV8B DX4 NV8B 2-3 2-3 2-3 2-3 3-4 1-2 1-2 2-3 1-2 1-2 1-2 2-3 1-2 1-2 2-3 2-3 1-2 1-2 3-4 1-2 1-2 Position 1-2 2-3* 1-2 2-3* 1-2 Function OEM BIOS Acer BIOS Enable Password Check Bypass Password Mono/COM1 boot Enh AMD DX2 SV8T 2-3 2-3 1-2 2-3 2-3 1-2 1-2 C5x86 1st 1-2 6th 2-3 7th 2-3 Open 1-2 4th 1-2 5th 1-2 6th 2-3 7th 2-3 3-4 1-2 1-2 Enh AMD DX4 SV8T 2-3 2-3 1-2 2-3 3-4 1-2 1-2 AMD DX2 NV8T 2-3 1-2 2-3 2-3 2-3 1-2 1-2 Enh AMD DX2 SV8B 2-3 1-2 1-2 1-2 2-3 1-2 1-2 Enh AMD DX4 SV8B 2-3 1-2 1-2 1-2 3-4 1-2 1-2 19 20 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper JP5 JP6 JP7 JP8 JP9 JP10 JP11 JP28 JP29 JP 33 JP35 JPX1 Position 2-3* 2-3 1-2 1-2 2-3* 2-3* 1-2 1-2 2-3* 1-2 2-3* 1-2 2-3* 1-4 2-5 3-7 1-2 2-3* 1-2 2-3* 1-2 2-3 Open Closed 1-2 2-3* Function Normal boot (VGA) Enable onboard memory Disable Disable onboard super I/O Enable Printer DRQ3 Printer DRQ1 Printer DACK1 Printer DACK3 Disable onboard VGA Enable IDE port 0F4h, 0F8h, 0FCh IDE port 074h, 078h, 07Ch 25 MHz 33 MHz 40 MHz (not recommended) Enable Suspend/Resume button Enable Reset button Disable onboard IDE Enable Feature Connector I2C interface IDE LED IDE, FDD, CD ROM LED Flash ROM EPROM Front Panel Header Position 1-2 3-5 7-10 12-13 15-17 19-20 Function Keylock Power LED Speaker Green LED Suspend switch Reset A1G4 JP11 JP12 JP13 JP18 JP20 JP30-32 JP33 JP34-36 JP39 JP40 JP41 JP42 JP43 JP44 JP45 JP46 JP47 JP48 486 1-2 1-2 2-3 2-3 2-3 Open 1-2 Closed 1-2,4-5 2-3 2-3 2-3 Open Open Closed 1-2 1-2 Open ODP 486 1-2 1-2 1-2 2-3 2-3 Open 1-2 Closed 1-2,4-5 2-3 2-3 2-3 Open Open Closed 1-2 1-2 Open P24C 1-2 1-3 1-2 2-3 2-3 Open 1-2 Closed 1-2,4-5 2-3 2-3 2-3 Open Power Board 1-2 1-2 Open P24D 1-2 2-3 1-2 1-2 2-3 Open 1-2 Closed 1-2,4-5 2-3 2-3 2-3 Open Open Closed 2-3 1-2 Open AMD 3.3v 1-2 1-2 1-2 2-3 2-3 Open 1-2 Open 1-2,4-5 1-2 1-2 2-3 Open Power Board 1-2 1-2 Open Cyrix 2-3 1-2 1-2 2-3 1-2 Closed 2-3 Open 1-2,4-5 2-3 2-3 2-3 Open Open Closed 1-2 2-3 Open UMC 1-2 1-2 1-2 2-3 2-3 Open 1-2 Closed 1-2,4-5 1-2 1-2 2-3 Open Open Closed 1-2 1-2 Open TI/Acer 2-3 2-3 2-3 2-3 1-2 Open 1-2 Open 2-3,5-6 2-3 2-3 1-2 Open Open Closed 1-2 1-2 Open A Jumper JP2 JP10,17,19 CN14 JP14 JP16 JP20 JP21 JP28 JP30,31 JP37-38 Position 2-3 1-2 JP10 1-2 2-3 2-3 Closed Open Open Closed 1-2 2-3 Closed Open 1-2 2-3 1-2 2-3 1-2 2-3 JP17 -2 2-3 2-3 JP19 2-3 2-3 2-3 CN14 2-6 3-7 4-8 Function Enable password check Disable CPU Clock 40 MHz 33 MHz 25 MHz Enable onboard VGA Disable Enable onboard local bus IDE Disable Intel SL enh or Cyrix CPU Normal CPU Enable onboard super I/O Disable Enable onboard memory Disable 128K cache (4 x 32K x 8) 256K cache (8 x 32K x 8) Enable Reset button Disable Front Panel Header Position 1-2 3-5 7-10 12-13 15-17 19-20 Function Keylock Power LED Speaker Green LED Suspend switch Reset AP53 Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) I/O Jumper JP1,3 JP3 JP4 JP5 JP8 JP10 Description AT Pentium Notes Intel 430HX AMI 4 PCI/3 ISA 4 x 72-pin sockets 2S, 1P, floppy, IDE, USB Position JP1 1-2,3-4 1-2 3-4 1-2,3-4 In Out 1-2 2-3 1-2 2-3 1-2,3-4 3-4,5-6 5-6,7-8 Function Bus Speed 25 MKz 30 MHz 33 MHz Out for P55C Enable PS/2 Mouse Disable Normal Clear CMOS Enable onboard I/O Disable 3x CPU 4x CPU 5x CPU 21 22 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper JP11 JP12 JP13 JP 1301 JP1302 Position 1-2,7-8 1-2 3-4 5-6 7-8 9-10 11-12 1-2 3-4 1-2,3-4 JP1301 1-2 2-3 JP1302 1-2 2-3 Function 6x CPU 3.43v Core 3.52v 2.5v 2.7v 2.8v 2.9v Chipset/PBSRAM Voltage 3.43v 3.52v In for P55C Flash ROM Boot Block Reserved Enabled AX6F Item Form Factor CPU Chipset BIOS Memory (Mb) Cache (K) I/O Jumper JP1-3 JP5,6 JP14 Description ATX Pentium II Intel 82440FX PCIset Award Flash 512 None 2S, 1P, floppy, IDE, USB, PS/2 Position JP1 2-3 1-2 1-2 1-2 1-2 2-3 2-3 2-3 2-3 1-2 1-2 1-2 1-2 2-3 JP5 1-2 2-3 1-2 2-3 JP2 1-2 1-2 1-2 2-3 2-3 1-2 1-2 2-3 2-3 1-2 1-2 2-3 2-3 1-2 JP6 1-2 2-3 Front Panel Header Position 1-2 3-5 7-10 12-13 15-17 19-20 Function Keylock Power LED Speaker Green LED Suspend switch Reset JP3 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 Notes Thermal protection FPM/EDO. 4 x 72-pin sockets Function CPU Frequency Ratio 1.5x 2x 2.5x 3x 3.5x 4x 4.5x 5x 5.5x 6x 6.5x 7x 7.5x 8x CPU external clock 66 MHz* 60 MHz Normal operation Clear CMOS A F433T Jumper JP2 JP3 J4 JP4 JP6 JY2 JN4 J8 SW1 Position 1-2* 1-2* 1-2* 2-3 In Out* N/C In* Out In* Out On Off* Reserved Function 33 MHz 486DX 486SX Discharge battery (erase CMOS) Charge battery UPS Connector Enable system security setup Disable system security setup Enable reset switch Disable reset switch IRQ9 to VGA IRQ9 to expansion card Do not use ViL5G Jumper JP1,2 JP6 JP18 JP19 Position JP1 1-2,4-5,8-9 1-2,5-6,8-9 1-2,5-6,7-8 2-3,5-6,8-9 JP2 1-2,4-5,8-9 1-2,4-5,8-9 1-2,4-5,7-8 2-3,5-6,8-9 1-2 2-3 1-2 2-3 Function Cache Size 128K (32Kx4) 256K (64Kx4) 512K (128Kx4) 256K (32Kx8) Clear CMOS VESA write 0 wait state VESA write 1 wait state VESA bus speed <=33 MHz VESA bus speed >33 MHz 5v CPU i486SX/DX Cyrix DX/DX2 Intel/AMD SX Intel/AMD DX2/SL enh DX/DX2 JP9 1-2 2-3 1-2 1-2 JP10 1-2 2-3 1-2 1-2 JP13 1-2 1-2 Open Open JP23 3-4,5-6,7-8 2-3,5-6,7-8 6-7 5-6,7-8 JP24 7-8 2-3,7-8 Open 7-8 JP25 Open 2-3* or Open** Open Open JP26 1-2,5-6 4-5 Open Open JP27 4-5,7-8 2-3,7-8 7-8 7-8 *Without voltage regulator – Cyrix CPU in w/t mode only. **With voltage regulator. 3.45v CPU i486DX4 AMD DX2 JP9 1-2 1-2 JP10 1-2 1-2 JP13 1-2 Open JP23 3-4,5-6,7-8 5-6,7-8 JP24 7-8 7-8 JP25 Open 3-4* JP26 1-2,5-6 * JP27 4-5,7-8 7-8 JP16 1-2 Open *Connect pin 8 of JP25 to pin 7 of JP26. AMD DX4 1-2 1-2 Open 5-6,7-8 7-8 3-4 Open 7-8 Open Cyrix DX2 2-3 2-3 1-2 2-3,5-6,7-8 2-3,7-8 3-4 4-5 2-3,7-8 Open Intel P24D 1-2 2-3 1-2 1-2,3-4,5-6,7-8 7-8 1-2,5-6 2-3,5-6,7-8 4-5,6-7 23 24 The PC Engineer’s Reference Book – Vol 2: Motherboards 32/20 Jumper S1-4 JP5 S5 S6 S8 JP6-8 JP9 Position ROM Size 27128 27256 27512 On Off* Off* On On Off Math CoPro Installed Not Installed* Open* 1-2(A) Function S1 S2 S3 On* On* Off* Off Off On Off Off On CGA Mono 20 MHz SMART Mode (not under Xenix) ROM Shadow Disabled ROM Shadow Enabled JP6 JP7 JP8 1-2 1-2 2-3 2-3* 2-3* 1-2* 2Mb on board 4Mb on board 500+ Jumper S1 S2 S3-4 S5-8 S1, 7-8 Position On Off* On Off S3 Off On Off S5 Off On Off On S1 Off Off S4 On Off Off S6 Off Off On On S7 On Off Position On On Off On Off On Function Enable IRQ 2 Enable RTC 0 (300-303) Enable RTC 1 (2C0-2C3) Enable COM 2 (2F8-2FF) Disable COM 2 Enable COM 1 (3F8-3FF) S8 On On Function Disable Floppy Enable Floppy Enable 8087 Disable 8087 Base Mem 640K 512K 256K Display Mono 80x25 Colour 80x25 Colour 40x25 EGA etc Floppy 1 drive 2 drives 710 SW1 Jumper S1 S2 S3 S4 SW2 Switch S1 S2 S3-4 Position On Off On Off S3 Off On Off S4 Off Off On Function Disable Floppy Enable Floppy Disable 8087-1 Enable 8087-1 Memory Bank 1 Bank 1 & 2 Bank 1, 2 & 3 S4 Off* On On JP5 2-3 2-3 1-2 A Switch S5 S6 S1, 7-8 Position On Reserved On Off S1 Off Off On S7 On Off S8 On On S2 Off Off On On Off Off On On Off Off On On Off S3 Off Off Off Off On On On On Off Off Off Off On Function Reserved Do not use Disable display Enable display Floppy 1 drive 2 drives SW3 Switch S1-4 S5 S6 S7 S8 Position S1 Off On Off On Off On Off On Off On Off On Off On Off On Off On Off On Off S4 Off Off Off Off Off Off Off Off On On On On On Function Bank Address C0000-C3FFF C4000-C7FFF C8000-CBFFF CC000-CFFFF D0000-D3FFF D4000-D7FFF D8000-DBFFF DC000-DFFFF E0000-E3FFF E4000-E7FFF E8000-EBFFF EC000-EFFFF F0000-F3FFF 3 Mb RAM 768K RAM RAM Bank enable RAM Bank disable 64K ROM 40K ROM 10 MHz 4.77 MHz SW4 Switch S1 JP1 Position Colour Mono In A In B Function Colour display Mono display Disable display Enable display 910 SW1 Switch S1-3 S4 Position S1 Off Off On Off On Off S2 On On Off Off S3 Off On On On Function Memory Size 256K 512K 640K 1024K 0 Wait State 1 Wait State SW2 Switch S1-2 5-8 Position EPROM 27128 27256 Function S1 On On S2 Off Off S5 On Off S6 Off On S7 Off Off S8 On On 25 26 The PC Engineer’s Reference Book – Vol 2: Motherboards Switch S4 JP11 Position 27512 On Off H N Function Off On Colour Display Mono Display High System Speed Low System Speed Function EPROM 27128 27256 27512 Position S1 On On Off Off On S3 Off On On S4 On Off Off S3 On Off On S4 Off On Off Off On S5 On Off Off S6 On On On 913 SW1 Switch S1-4 S2 Off Off On SW2 Jumper S1 S2 S3 S4 Position Off On Off Off On Off On Function 12 MHz 8 MHz Disable Floppy HD controller installed No HD controller Disable COM 1 (3F8-3FF) Enable COM 1 SW3 Switch S1-8 Function Display EGA CGA MGA Position S1 Off Off Off S2 On Off Off SW4 Switch S1-3 Function Memory Size 512K 640K 512+512K 640+384K Position S1 On Off On Off S2 On On Off Off S3 On On On On 915 As for System 913 915V Jumper JA JB,C,D Position A Disable COM 1 Disable COM 2 Disable HD Enable HD Function Enable VGA B B A 1100LX Jumper JP1 Position In Out Function 512K ROM 256K ROM C A B B A D B B A A S7 On On On S8 On On On A JP2 JP3 In In Out* Maths copro installed Reset system password System password disabled 1100/16 Switch S1-4 JP5 S5 S6 S7, JP9 S8 JP6,7,8 Position EPROM 27128 27256 27512 On Off Off On S7 Off Off Off On JP6 A B JP9 A JP7 A B JP8 B A Function S1 S2 On On Off Off Off Off CGA Display EGA, MGA, MDA Display 20 MHz SMART speed Memory 640+1Mb+256 640+3Mb+256 RAM BIOS ROM BIOS Maths Copro There Not there S3 Off On On 1120SX Jumper J1 JP3 Position In* Out A* B Function Detect add-On display and Disable On-board VGA automatically Enable password check Bypass and clear existing password 1100/25 SW1 Switch S1-4 S5-8 Function EPROM 27128 27256 27512 I/O recovery delay 0 1 2 3 4 5 6 8 9 10 11 12 13 14 15 Position S1 On On* Off S5 Off Off Off Off Off Off Off On On On On On On On On S2 Off Off* On S6 Off Off Off Off On On On Off Off Off Off On On On On S3 On Off* Off S7 Off Off On On On Off On Off Off On On Off Off On On S4 Off On On S8 Off On Off On On On Off Off On Off On Off On Off On S4 Off On On JP5 B B A 27 28 The PC Engineer’s Reference Book – Vol 2: Motherboards SW2 Switch S1 S2 S3 S4 S5-7 S8 S9 S10 JP6-8 JP12 JP13-16 Position On* Off Off* On Off* On Off* On Printer Port LPT1 LPT2 Off* On Off* On Off* On JP6 1-2 2-3* 1-2* 2-3 RAM 2 Mb 4 Mb 6 Mb 4 Mb 8 Mb JP7 1-2 2-3* Function 25-pin=COM1, 9-pin=COM2 9-pin=COM1, 25-pin=COM2 Enable COM1 Disable COM1 Enable COM2 Disable COM2 Enable Printer Port Disable Printer Port S5 S6 S7 Off* Off* On* On On Off Shadow RAM enabled Shadow RAM disabled Primary display Mono or extended Primary display CGA DRAM Bank B enabled DRAM Bank B disabled Maths Copro There Not there Remap 256K to FA0000-FDFFFF Do not remap or permit RAM cacheing of F00000-FFFFFF Modules JP13 JP14 JP15 JP16 512 x 9 2-3* 2-3* 1-2* 1-2* 512 x 9 2-3 2-3 1-2 1-2 512 x 9 1-2 1-2 1-2 1-2 1M x 9 1M x 9 1-2 1-2 2-3 2-3 1M x 9 1-2 1-2 2-3 2-3 JP8 1-2 2-3* Bank A A&B A B A A&B 1100/33 As for 1100/25 1120C As for 1100/25 1133T Jumper J4 J6 JA1 Position In* Out 1-2* 2-3 32K cache 64K cache 128K cache Function Setup accessible Setup inaccessible Normal CMOS state Discharge CMOS 5-6 1-2* 5-6* 1-2 4-5 1170 Jumper JP1-3 JP4 Position JP1 Out* In 1-2 2-3* JP2 Out In* JP3 Out* In Function Tuning write timing Open Close 27512 EPROM 27256 EPROM A Jumper JP5 JP6 JP7 JP8 JP9 JP10 Position 1-2* 2-3 Out In* 1-2 2-3* 1-2* 2-3 1-2 2-3* Function Enable I/O recovery Disable I/O recovery Disable Parity Check Normal parity operation UPS interface INIT directly connected to onboard controller INIT pass through buffer Enable power-on password in setup Disable power-on password in setup DMA timing low speed DMA timing 25 MHz Daughterboard Jumper JP1 JP2 JP3 Position 1-2* 2-3 1-2 2-3* 1-2* 2-3 Function TCR always high TCR connects 486 to system board WRDYIN signal Cascade JP3-2 80486 RDY signal 80486 B13 not connected Position On* Off 1-2* 2-3 1-2 2-3* On Off* 1-2 2-3* 1-2* 2-3 On* Off On* Off On* Off On* Off On* Off On* Off On* Off On* Off Function Keyboard and reset button active Keyboard and reset button locked 80486/7 in socket B 80486SX in socket B 27512 EPROM 27256 EPROM Discharge CMOS Normal Other Acer display card (Normal VGA) ATI Onboard display (faster VGA performance) 16-bit ROM 8-bit ROM Enable Floppy Disable Floppy Enable HD controller Disable HD controller Enable COM1 Disable COM1 Enable COM2 Disable COM2 Enable LPT1 Disable LPT1 Reserve 15-16 Mb for system Enable add-On card Enable reset function Disable reset function Enable password security Disable password security Position 1-2 Function Indicate hardware errors in Intel chipset (EBC and ISP) 1172 Jumper JP3 JP5 JP15 JP18 JP22 JP71 S1 S2 S3 S4 S5 S6 S7 S8 1200 Jumper JP1,4 29 30 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper JP2 JP3 JPX2 JPX3 JPX4 JPX5 JPX6 JPX7 Position 1-2* 2-3 2-3* 1-2 1-2 2-3* 1-2 2-3* 2-3* 1-2 1-2* 2-3 1-2* 2-3 1-2 2-3 Function 512/256K EPROM 128K EPROM 128/256K EPROM 512K EPROM Page miss; for debugging only Detect page hit or miss Forces CHHIT high for cache miss; debugging only Detect cache hit or miss (CHHIT low if hit) Fast CPU reset Normal CPU reset 9 ns RAS delay 20 ns RAS delay Enable password security Disable password security CLK1 DCLK; debugging only 1733 Jumper JP1 JP2 JP3,4 JP5 JP6 JP7 JP8 TP1 J4 J5,6 J7,8 J9 S1 S2 S3 Position 1-2 2-3* JP3 Out In* In* Out JP4 Out In* 1-2 2-3 In* Out 1-2* 2-3 1-2 2-3* CPU type 80486 33 80386 33 1-2 2-3* On* Off On* Off On Off Function UPS sense signal input No reset Fast RC reset MB Clock Disconnect Connect 3 BCLK I/O recovery time 1 BCLK I/O recovery time External speaker External speaker Onboard buzzer Dual Bus arbitration Single Bus arbitration Normal LCS Delayed LCS Latched IRQ INTR Unlatch INTR J5 J6 Out* In* In Out Reserved Show OEM BIOS message Show Acer BIOS message System security bypassed Not bypassed Enable reset function Disable reset function CPU 64 bit bus (486/33, 50) CPU 32 bit bus (486SX, 386) 1933T Jumper J1 J2 J3 J4 Position 1-2 1-2 1-2* 2-3 Function Keyboard/mouse connector 33 MHz CPU speed 486DX 486SX A Jumper JP4 JP6 JY2 JY5 JN4 Position In Out In* Out 2-3* In* Out SW1 Function Discharge battery, erase CMOS Charge battery UPS connector Enable system security setup Disable system security setup For chipup CPU Enable reset switch Disable reset switch Reserved 3000SP33 Jumper JP1 JP2 JP3 JP4 JP5 JP6 JP9 JP10 JP11 JP13 Position 1-2 2-3 1-2* 2-3 1-2* 2-3 1-2 2-3* 1-2* 2-3 1-2* 2-3 1-2 2-3 1-2 1-2 2-3 1-2 2-3 Function UPS present UPS not present Enable password security Disable password security 512/256K EPROM 128K EPROM 512K EPROM 256/128K EPROM I/O recovery time added No /O recovery time added Latched interrupt Unlatched interrupt 25 MHz CPU (Acer 1200/25) 33 MHz CPU (Acerframe 3000SP33) Disable page hit cycle (for diags) Cache hit cycle disabled (diags) Cache hit cycle enabled (normal ops) Speaker on JP14 On board buzzer Daughterboard Jumper JP1 JP2 JP3 Position 1-2 2-3* 1-2 2-3* 1-2* 2-3 Function CPU read 4167 with 0 wait state CPU read 4167 with 1 wait state WRDY: system board ready WRDY1#: cascade to JP3 RDY: i486 ready Reserved – do not use Position 1-2 2-3 Open Closed 1-2 2-3 1-2 2-3 1-2 2-3 Function Check password Bypass Disable reset button Enable Acer BIOS OEM 128 or 256 byte RTC NVRAM 4K, reserved Buzzer Speaker M3 Jumper JP1 JP2 JP3 JP4 JP6 31 32 The PC Engineer’s Reference Book – Vol 2: Motherboards Ali CPU Board (3.3v) PCB 94414-1. Max 133 MHz. As for M5 Pentium CPU Board PCB 94323-1 Jumper JP1 Position 1-2 2-3 Function Pentium 90 Reserved M3A Jumper JP1 JP2 JP3 JP4-6 JP7-9 JP3 (?) JP10 JP11 Position 1-2 2-3 1-2 2-3 1-2 2-3 JP4 2-3 2-3 2-3 2-3 2-3 1-2 1-2 1-2 1-2 2-3 1-2 2-3 1-2 2-3 3-4 1-2 2-3 JP5 1-2,4-5 1-2,3-4 2-3,4-5 1-2,3-4 2-3,4-5 1-2,3-4 2-3,4-5 2-3,4-5 JP6 2-3 2-3 2-3 1-2 1-2 1-2 1-2 2-3 Function Acer BIOS logo No logo Check password Bypass Buzzer Speaker CPU frequency 75 MHz 90 MHz 100 MHz 120 MHz 133 MHz 150 MHz 166 MHz 200 MHz P54C P55C 256K cache 512K cache Enable SMM switch Enable reset switch (e.g. normal power supply) Additional reset switch CPU VR voltage (3.3-3.46v) CPU VRE voltage (3.45-3.6v) M5 Dual Pentium Jumper JP1 JP2 JP3 JP4 JP5 JP6 Position 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 Open Short 1-2 2-3 Function Acer BIOS logo OEM logo Check password Bypass DREQ1 DREQ3 DACK1 DACK3 Disable reset button Enable Buzzer Speaker CPU/Memory Board PCB 93404-1. Max 133 MHz Jumper JP1,13 Position JP1 1-2 JP13 2-3 Function Cache size 256K A Jumper JP2 JP12,14,15 JP17,18 Position 2-3 1-2 2-3 JP12 1-2 2-3 JP17 Short 1-1 1-2 JP14 Short Open JP18 Short 2-2 JP15 Short Open Function 512K 3/2 bus core ratio 2/1 SRAM Standard Synchronous SRAM Standard Synchronous (1 of 17,18, 2 of 17,18) CPU/Memory Board PCB 93404-2. Max 166 MHz Jumper Position JP1,13 JP1 1-2 2-3 JP2,3 JP2 1-2 2-3 2-3 JP12,14,15 JP12 1-2 2-3 JP17,18 JP17 Short 1-1 JP13 2-3 1-2 JP3 1-2 1-2 2-3 JP14 Short Open JP18 Short 2-2 JP15 Short Open Function Cache size 256K 512K Bus core ratio 3/2 2/1 5/2 SRAM Standard Synchronous SRAM Standard Synchronous (1 of 17,18, 2 of 17,18) Ali CPU Board (3.3v) PCB 94414-1. Max 133 MHz Jumper JP1 JP2 JP4 JP5,7 JP6 JP8 Position Open 1-2 2-3 Open 1-2 2-3 JP5 1-2 2-3 2-3 Closed Open JP7 1-2 2-3 Function 50 MHz host clock 60 MHz 66 MHz Reserved CPU VR voltage (3.3-3.46v) CPU VRE voltage (3.45-3.6v) L2 Cache size 256K 1Mb Reserved 2/1 bus core ratio 3/2 Ali CPU Board (3.3v) PCB 94414-2. Max 166 MHz Jumper Position JP1 Open 1-2 2-3 JP2 Open JP4 1-2 2-3 JP5,7 JP5 JP7 1-2 1-2 2-3 2-3 JP6 2-3 JP8 Closed Function 50 MHz host clock 60 MHz 66 MHz Reserved CPU VR voltage (3.3-3.46v) CPU VRE voltage (3.45-3.6v) L2 Cache size 256K 1Mb Reserved 2/1 bus core ratio 33 34 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper Position Open (?) Function 3/2 5/2 M7 Jumper JP1 JP2 JP3 JP4-5,7 JP6 JP8 JP9 JP10 JP11 JP12 CN16 Position 1-2 2-3 1-2 2-3 1-2 2-3 JP4 2-3 2-3 2-3 2-3 2-3 1-2 1-2 1-2 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 3-5 7-10 12-13 15-17 19-20 JP5 2-3 2-3 2-3 1-2 1-2 1-2 1-2 2-3 JP7 1-2 2-3 3-4 2-3 3-4 2-3 3-4 3-4 Function CPU VR voltage (3.3-3.46v) CPU VRE voltage (3.45-3.6v) SCSI terminator on Software settings 256K cache 512K cache CPU frequency 75 MHz 90 MHz 100 MHz 120 MHz 133 MHz 150 MHz 166 MHz 200 MHz 16-bit (Wide) SCSI 8-bit Acer BIOS logo No logo Check password Bypass Buzzer Speaker Front panel reset enabled 256K BIOS enabled (fixed setting) Keylock Power LED Speaker Green (Turbo)LED Turbo switch Reset M9B Jumper JP1 JP2 JP3 JP4 JP5 JP6 Position 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 1-2 2-3 Function Check password Bypass Acer BIOS logo OEM SCSI terminator on BIOS settings Wide SCSI Narrow SCSI Enable hardware reset Buzzer Speaker CPU/Memory Board Jumper CN1 Position 1-5,2-6,3-7,4-8 1-5,2-6,4-8 1-5,2-6,3-7 1-5,2-6 Function 2x CPU 3x 4x 2.5x A Jumper CN2 (CPU 1) CN3 (CPU 2) J16 Position 2-6,4-8 1-5 Short Short Short Short Short Short Short Short Open Open Open Open Open Open Open Open 1-2 2-3 2-6 Short Short Short Short Open Open Open Open Short Short Short Short Open Open Open Open 3-7 Short Short Open Open Short Short Open Open Short Short Open Open Short Short Open Open 4-8 Short Open Short Open Short Open Short Open Short Open Short Open Short Open Short Open Function 3.5x CPU 1 & 2 Voltage 3.5v 3.4v 3.3v 3.2v 3.1v 3v 2.9v 2.8v 2.7v 2.6v 2.5v 2.4v 2.3v 2.2v 2.1v No CPU 66 MHz host clock 60 MHz M9N Jumper JP1 JP2 JP3 JP4 JP5 Position 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 Open 1-2 2-3 Function Enable software control for CN4 (power supply) Disable Branded BIOS type Generic Check password Bypass SCSI Channel 1 High-byte termination always on Software control Off Normal (Auto VGA) Disable onboard VGA CPU/Memory Board Jumper JP1 JP2 JP5 Position 1-2,3-4,5-6,7-8 1-2,3-4,7-8 1-2,3-4,5-6 1-2,3-4 1-2,7-8 1-2 2-3 1-2 2-3 Function 2x CPU 3x 4x 2.5x 3.5x ITP CPU 1 ITP CPU 2 66 MHz Host bus 60 MHz M11A Pentium Pro Jumper J4 J5 Position 1-2 2-3 1-2 2-3 Function 128K Flash ROM 256K Flash ROM Check password Bypass 35 36 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper J6 J9 J10 J13 CN13 CN14 JMP1 Position Open 1-2 1-2 2-3 Open 1-2 2-3 1-2 2-3 1-5,2-6,3-7,4-8 1-5,2-6,4-8 1-5,2-6,3-7 1-5,2-6 2-6,3-7,4-8 2-6,4-8 1-5 2-6 Short Short Short Short Short Short Short Short Short Open Short Open Short Open Short Open Open Short Open Short Open Short Open Short Open Open Open Open Open Open 1-2 2-3 3-7 Short Short Open Open Short Short Open Open Short Short Open Open Short Short Open 4-8 Short Open Short Open Short Open Short Open Short Open Short Open Short Open Short V12LC Switch JP1 JP2 JP3 JP4,5 JP6 JP7 JP8 JP9 JP11 JP12 JP13 JP14 Position 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 1-2 1-4 2-5 3-6 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 Function Acer BIOS OEM Check password Bypass Flash ROM EPROM ECP DMA1 using DRQ1 and DACK1 ECP DMA3 using DRQ3 and DACK3 Disable onboard I/O Disable onbaord VGA 50 MHz host clock 60 MHz host clock 66 MHz host clock Disable EIDE Enable No delay for M1451 Delay ADS# by 1 CPU clock cycle P54C or K5 Cyrix M1 3.38v CPU 3.52v CPU 3/2 clock frequency Function Narrow SCSI Wide SCSI 60 MHz host clock 66 MHz SCSI terminator off On BIOS settings Buzzer Speaker 2x CPU 3x 4x 5x 2.5x 3.5x CPU Voltage 3.5v 3.4v 3.3v 3.2v 3.1v 3v 2.9v 2.8v 2.7v 2.6v 2.5v 2.4v 2.3v 2.2v 2.1v Reset Enable SMM A Switch JP15 CN6 Position 2-3 1-2 2-3 1-2 3-5 7-10 12-13 15-18 19-20 Function 2/1 Reset switch in suspend mode As reset switch Keylock Power LED Speaker Green mode Turbo Reset V12LC-2X Switch JP1 JP2 JP3 JP6 JP8 JP12 JP13 JP14,18 JP15 JP16,17 JP19 JP20 CN6 Position 1-2 2-3 1-2 2-3 Open 1-2 2-3 1-2 1-4 2-5 3-6 1-2 2-3 1-2 2-3 JP14 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 Open 1-2 2-3 1-2 3-5 7-10 12-13 15-18 19-20 JP18 1-2 1-2 2-3 2-3 Function Acer BIOS OEM Check password Bypass SST 29EE010 BIOS ROM EPROM Flash ROM (Intel 28F010, 28F001, 28F101) Disable onboard I/O 50 MHz host clock 60 MHz host clock 66 MHz host clock P54C or K5 Cyrix M1 3.38v CPU 3.52v CPU Intel M1/K5 Clock Ratio 3/2 3/2,2/2,3/1 2/1 1/1 3/1 3/2,2/2,3/1 5/2 1/1 Reset switch in suspend mode As reset switch CN1 as feature connector CN1 as 12C interface Reserved (HD LED) Programming boot block Normal Keylock Power LED Speaker Green mode Turbo Reset V20 Switch JP1 JP2 JP3 JP4 JP6 Position 1-2 2-3 1-2 2-3 3-4 1-2,3-4,5-6 2-3 Function Check password Bypass Acer BIOS OEM Reserved Reserved Reserved 37 38 The PC Engineer’s Reference Book – Vol 2: Motherboards Switch JP7 JP8 JP10 JP9,20 JP11 JP12 JP22 JP23 JP24 CPU 25 MHz 33 MHz 50 MHz 66 MHz 100 MHz Am 66 MHz Am 100 MHz Position 2-3 1-2 2-3 1-2 JP9 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 3-4 1-2 2-3 1-2 2-3 JP17 1-5 2-6 1-5 2-6 2-6 2-6 2-6 JP20 2-3 1-2 Function Reserved Enable M5115 Disable Reserved CPU Type P24D/P24T (Overdrive) 486-S Local IDE I/O address 0FXH Local IDE I/O address 07XH Disable local IDE Enable DX4 3x 2.5x 2x Enable reset button Disable Reset becomes Suspend Normal JP21 2-3 2-3 2-3 2-3 2-3 2-3 2-3 JP26 1-2 1-2 1-2 1-2 1-2 2-3 2-3 JP27 1-2 1-2 1-2 1-2 1-2 2-3 2-3 V30-1 Switch JP1 JP2 JP3 JP4 JP5 JP6 JP7 JP9 JP10 JP11,13 CN13 JP12 JP15 JP16 JP17 JP19 Position Open Open Closed 1-2 2-3 1-2 2-3 Open Closed 1-2 1-2 2-3 Closed Closed JP11 JP13 1-2 1-2 2-3 1-2 2-3 1-2 2-3 2-3 2-3 2-3 2-3 1-2 2-3 1-2NetWare 3x has 5 areas Open Closed CN13 1-4,2-5 1-4,3-6 2-5 1-4,3-6 2-5 Function Reserved LPT Normal LPT ECP DRQ3 for LPT ECP DRQ1 DACK3 for LPT ECP DACK1 Disable PS/2 mouse (IRQ 12) Enable Enable SMC 665 Check password Bypass Reserved Reserved CPU Frequency 75 MHz 90 MHz 100 MHz 120 MHz 133 MHz Reserved Clear RTC Normal Reserved Reserved Reserved A Switch JX21 CN16 Position 1-2 2-3 1-2 3-5 7-10 12-13 15-18 19-20 Function VR or standard CPU (3.3v) VRE CPU (3.6v) Keylock Power LED Speaker Green mode Turbo Reset V30-2 Switch JP1 JP2 JP3 JP4 JP5 JP6 JP7 JP8 JP9 JP10 JP11 JP12 JP15 JP18 JP19 JP22 JP20 CN16 CPU 75 MHz 90 MHz 100 MHz 120 MHz 133 MHz 150 MHz 166 MHz Position Open Open Closed 1-2 2-3 1-2 2-3 Open Closed 1-2 2-3 1-2 2-3 1-2 2-3 Open 1-2 Open 1-2 1-2 1-2 Open Closed 1-2 2-3 1-2 3-5 7-10 12-13 15-18 19-20 JP13 1-2 2-3 2-3 2-3 2-3 2-3 2-3 Function Reserved LPT Normal LPT ECP DRQ3 for LPT ECP DRQ1 DACK3 for LPT ECP DACK1 Disable PS/2 mouse (IRQ 12) Enable Enable SMC 665 Disable Check password Bypass Acer BIOS OEM Reserved Reserved Reserved Reserved Clear RTC Reserved Reserved Reserved VR or standard CPU (3.3v) VRE CPU (3.6v) Keylock Power LED Speaker Green mode Turbo Reset JP14 1-2 1-2 1-2 1-2 1-2 2-3 2-3 JP15 1-2 1-2 1-2 2-3 2-3 2-3 2-3 CN12 1-3,2-4 1-3 2-4 1-3 2-4 1-3 2-4 39 40 The PC Engineer’s Reference Book – Vol 2: Motherboards V35 Switch JP1 JP3 JP5 JP7 JP10 CN16 CPU 75 MHz 90 MHz 100 MHz 120 MHz 133 MHz 150 MHz 166 MHz 200 MHz Position 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 3-5 7-10 12-13 15-18 19-20 JP4 1-2 2-3 2-3 2-3 2-3 2-3 2-3 2-3 Function Check password Bypass 64 Mb cacheable memory 512 Mb 3.3v CPU 3.6v CPU Disable L2 cache 256K Enable SMI switch Enable reset switch Keylock Power LED Speaker Green mode Turbo Reset JP8 1-2 1-2 1-2 2-3 2-3 2-3 2-3 1-2 JP9 1-2 1-2 1-2 1-2 1-2 2-3 2-3 2-3 CN12 1-3,2-4 2-4 1-3 2-4 1-3 2-4 1-3 1-3 V35N Switch CN10, 11,X1 JP1 JP2 JP3 JP5 JP6 JP7 JP10 CN16 Position CN10 1-3,2-4 Open 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 3-5 7-10 12-13 15-18 19-20 CN11 1-3,2-4 Open CNX1 Open 1-5,2-6,3-7,4-8 Function CPU Type P54C P55C Check password Bypass Acer BIOS logo OEM 64 Mb cacheable memory 512 Mb 3.3v CPU 3.6v CPU 60 MHz DRAM refresh rate 66 MHz Disable L2 cache 256K Enable SMI switch Enable reset switch Keylock Power LED Speaker Green mode Turbo Reset A CPU 75 MHz 90 MHz 100 MHz 120 MHz 133 MHz 150 MHz 166 MHz 200 MHz 233 MHz JP4 1-2 2-3 2-3 2-3 2-3 2-3 2-3 2-3 2-3 JP5 1-2 1-2 2-3 1-2 2-3 1-2 2-3 2-3 2-3 JP8 1-2 1-2 1-2 2-3 2-3 2-3 2-3 1-2 1-2 JP9 1-2 1-2 1-2 1-2 1-2 2-3 2-3 2-3 1-2 CN12 1-3,2-4 2-4 1-3 2-4 1-3 2-4 1-3 1-3 1-3 V50LA-N Switch JP2 JP3 JP4 JP5 JP6 JP7,8 JP9 JP10,11 JP12 CN16 Position 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 3-4 1-4 2-5 3-6 JP7 1-2 1-2 2-3 1-2 2-3 JP10 1-2 1-2 2-3 2-3 1-2 2-3 1-2 3-5 7-10 12-13 15-18 19-20 JP8 1-2 2-3 2-3 JP11 1-2 2-3 1-2 2-3 Function Acer BIOS logo OEM Check password Bypass Enable Flash ROM boot block Disable Reserved Flash ROM (Intel 28F001) Flash ROM (SST, Winbond 29EE010) 50 MHz host clock 60 MHz 66 MHz L2 cache 256K 512K 1 Mb P54C or K5 Cyrix M1 Intel M1/K5 Clock Ratio 3/2 3/1 2/1 2/1 3/1 5/2 3.38v CPU 3.52v CPU Keylock Power LED Speaker Green mode Turbo Reset V55-2 Switch SW1-2 SW3-4 JP4 Position SW1 On On Off Off SW3 On Off On 1-2 SW2 Off On On Off SW4 Off On On Function CPU Clock Ratio 3x 2.5x 2x 1.5x Host bus clock 66 MHz 60 MHz 50 MHz EPROM 41 42 The PC Engineer’s Reference Book – Vol 2: Motherboards Switch JP5 JP6 JP7 JP8,9 JP10 JP11 CN16 Position 2-3 1-2 2-3 3-4 1-2 2-3 1-2 2-3 1-2 2-3 2-3 Open Closed 1-2 3-5 7-10 12-13 15-18 19-20 Function Flash ROM NC ROM 29EE010 28F001 3.2v CPU core 2.8v (P55C) 3.5v CPU I/O voltage 3.3v 512K cache 256K cache Reserved Normal Clear CMOS (No jumper, just short pads) Keylock Power LED Speaker Green mode Turbo Reset V55LA Jumper SW2/1-2 SW2/3-4 SW2/5 SW2/6 JP1 JP2 JP3,4 JP5 JP6 JP7 JP11 JP16 JP42 JP43 Position 1 On On Off 3 On Off On Off On On Off 1-2 2-3 1-2 2-3 JP3 1-2 1-2 2-3 1-2 2-3 1-2 2-3 Open Closed Open 1-2 2-3 3-4 1-2 2-3 1-2 2-3 1-2 2-3 2 On Off On 4 On Off Off On JP4 1-2 2-3 2-3 Function Host clock frequency 50 MHz 60 MHz 66 MHz Intel M1 K5 Clock Ratio 5/2 1/1 2/1 3/2 3/1 3/2 2/1 2/1 3/1 4/1 Disable onboard sound Bypass password Check password Acer BIOS OEM LED for IDE and FDD IDE only Cache size 256K 512K 1 Mb Allow boot block programming Normal Flash ROM (28F010) EPROM Block Flash EPROM (SST 29EE010) Single voltage CPU Dual voltage SMM switch Reset switch Additional reset switch UPS enabled for software shutdown Disabled L2 cache Intel/M1 1+4 mode L2 cache M1 Linear Burst mode 3.5v CPU I/O voltage 3.3v A Jumper JP44 CN19 Position 1-2 2-3 1-2 3-5 7-10 12-13 15-18 19-20 Function 2.5v CPU core voltage 2.8v Keylock Power LED Speaker Green mode Turbo Reset V55LA-2 Jumper SW2/1-4 Intel Cyrix/IBM M1 Cyrix M2 AMD K5 AMD K6 SW2/5 SW2/6 JP1 JP2 JP3,4 JP7 JP11 JP16 JP43 JP44 Position 1 On On Off On Off On Off Off On On Off Off On Off On On Off On Off Off Off Off Off On On Off 1-2 2-3 1-2 2-3 JP3 1-2 1-2 2-3 Closed Open 1-2 2-3 3-4 1-2 2-3 1-2 2-3 1-2 2 On Off On Off On Off On On On Off On On Off On On Off On Off On On On On On JP4 1-2 2-3 2-3 3 Off Off Off On On On On Off On On On On Off Off Off Off Off On On On On Off Off 4 Off Off Off Off Off On On On Off Off Off On On On Off Off Off Off Off On On On Off Function CPU Frequency 75 MHz 90 MHz 100 MHz 120 MHz 133 MHz 150 MHz 166 MHz 200 MHz P120+ P150+ P166+ PR166 PR180 PR200 PR75 PR90 PR100 PR120 PR133 PR166 PR166 PR200 PR233 Disable onbaord sound Bypass password Check password Acer BIOS OEM LED for IDE and FDD IDE only Cache size 256K 512K 1 Mb Single voltage CPU Dual voltage SMM switch Reset switch Additional reset switch UPS enabled for software shutdown Disabled 3.5v CPU I/O voltage 3.3v 2.5v CPU core voltage 43 44 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper CN19 Position 2-3 1-2 3-5 7-10 12-13 15-18 19-20 Function 2.8v Keylock Power LED Speaker Green mode Turbo Reset V56LA Jumper JP8-9 JP13-15 JP17 Intel Intel MMX Cyrix 6x86 Cyrix 6x86L AMD K5 AMD K6 JP1 JP3 JP4 JP6 JP7 JP16 JP18 JP19 JP20 JP3001 CN19 Position JP8 3-6 2-5 3-6 2-5 3-6 3-6 3-6 3-6 1-4 2-5 3-6 1-4 2-5 3-6 2-5 3-6 2-5 3-6 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 2-3 1-2 3-5 7-10 12-13 15-18 19-20 JP9 On On On On On On Off Off On On On Off Off Off On On On On JP13 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 2-3 JP14 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 2-3 JP15 1-2 1-2 1-2 2-3 2-3 2-3 2-3 2-3 2-3 2-3 2-3 2-3 2-3 2-3 1-2 1-2 1-2 2-3 JP17 1-2 2-3 1-2 2-3 2-3 1-2 2-3 1-2 2-3 2-3 2-3 2-3 2-3 2-3 1-2 1-2 2-3 2-3 Function CPU Frequency 100 MHz 120 MHz 133 MHz 150 MHz 166 MHz 200 MHz 166 MHz 200 MHz P120+ P150+ P166+ P120+ P150+ P166+ PR120 PR133 PR150 PR166 Disable VGA Enable Acer BIOS OEM Check password Bypass 256K cache 512K cache 1 Mb BIOS ROM 2 Mb BIOS ROM L2 cache Interleave mode L2 cache Linear Burst mode CN20 LED for IDE and FDD IDE only 19-20 of CN17 suspend/resume As reset button UPS enabled (CN21) Disabled Reserved Keylock Power LED Speaker Green mode Turbo Reset A V58-1X Jumper S1-3 JP14,15 Intel Cyrix 6x86 Cyrix M2 AMD K6 S4 JP1,15 JP2 JP4 JP5 JP6 JP7 JP8 JP9 JP10 JP11 Position JP14 1-3,2-4 3-5,4-6 1-3,2-4 3-5,4-6 1-3,2-4 3-5,4-6 3-5,4-6 3-5,4-6 1-3,2-4 3-5,4-6 3-5,4-6 1-3,2-4 3-5,4-6 3-5,4-6 3-5,4-6 3-5,4-6 On Off JP1 1-3,2-4 3-5,4-6 1-2 2-3 1-2 2-3 1-2 2-3 3-4 2-3 1-2 3-4 5-6 1-3,2-4 3-5,4-6 1-2 3-4 2-3 1-2 3-4 5-6 7-8 9-10 11-12 13-14 JP15 3-5,4-6 3-5,4-6 3-5,4-6 3-5,4-6 3-5,4-6 3-5,4-6 3-5,4-6 3-5,4-6 3-5,4-6 3-5,4-6 3-5,4-6 3-5,4-6 3-5,4-6 3-5,4-6 3-5,4-6 3-5,4-6 S1 Off Off On On On On Off Off On On On Off Off 3-5,4-6 3-5,4-6 3-5,4-6 S2 Off Off Off Off On On On Off Off Off On On On On On Off S3 Off Off Off Off Off Off Off Off Off Off Off Off Off On Off Off JP15 1-2 2-3 Function CPU Frequency 90 MHz 100 MHz 120 MHz 133 MHz 150 MHz 166 MHz 200 MHz 233 MHz P150+ P166+ PR166 PR180 PR200 PR166 PR200 PR233 Check password Bypass Power supply type Traditional power supply Resume power supply LED for IDE & FDD IDE only L2 cache Interleave/1+4 mode L2 cache Linear Burst mode 12v for MXIC BIOS program 5v for SST, ATMEL Reserved Reserved Monitor 3.2v CPU core voltage Monitor 2.9v CPU core voltage Monitor 2.8v CPU core voltage Dual voltage CPU (P55C, K6, 6x86L) Single voltage CPU Monitor 3.5v CPU I/O voltage Monitor 3.3v CPU I/O voltage Reserved 3.3v CPU core voltage 2.8v 2.9v 3.2v 3.5v 2.1v Reserved V58LA Jumper S1/4,5 JP14,15 Intel Position JP14 1-3,2-4 1-3,2-4 1-3,2-4 1-3,2-4 1-3,2-4 JP15 1-3,2-4 3-5,4-6 1-3,2-4 3-5,4-6 1-3,2-4 CN23 1-3,2-4 1-3,2-4 1-3,2-4 1-3,2-4 1-3,2-4 S1/4 Off Off Off Off On S1/5 Off Off On On On Function CPU Frequency 90 MHz 100 MHz 120 MHz 133 MHz 150 MHz 45 46 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper Cyrix 6x86 Cyrix 6x86L AMD K5 AMD K6 S1 S2 S3 S4 JP1 JP2 JP3 JP5 JP10 CN23 CN36 Position 1-3,2-4 1-3,2-4 1-3,2-4 1-3,2-4 1-3,2-4 1-3,2-4 1-3,2-4 1-3,2-4 1-3,2-4 1-3,2-4 1-3,2-4 1-3,2-4 1-3,2-4 1-3,2-4 1-3,2-4 1-3,2-4 1-3,2-4 On Off On On On Off 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-3,2-4 3-5,4-6 1-2 3-4 5-6 7-8 9-10 3-5,4-6 3-5,4-6 3-5,4-6 3-5,4-6 3-5,4-6 1-3,2-4 3-5,4-6 1-3,2-4 3-5,4-6 1-3,2-4 3-5,4-6 1-3,2-4 3-5,4-6 3-5,4-6 3-5,4-6 3-5,4-6 3-5,4-6 1-3,2-4 1-3,2-4 3-5,4-6 3-5,4-6 3-5,4-6 1-3,2-4 1-3,2-4 3-5,4-6 3-5,4-6 1-3,2-4 1-3,2-4 1-3,2-4 1-3,2-4 1-3,2-4 3-5,4-6 3-5,4-6 3-5,4-6 On On On On Off Off Off Off Off Off Off Off Off Off On On Off On Off On Off Off On On On On Off Off On On On On Off Off V60N Switch JP1 JP3 JP4 JP9-10 12-13 Position 1-2 2-3 1-2 2-3 1-2 2-3 JP9 2-3 2-3 2-3 1-2 2-3 1-2 1-2 1-2 JP10 2-3 2-3 2-3 1-2 2-3 2-3 2-3 2-3 JP12 2-3 2-3 1-2 2-3 1-2 2-3 2-3 1-2 JP13 2-3 1-2 2-3 2-3 1-2 2-3 1-2 2-3 Function Check password Bypass Acer BIOS OEM 128K Flash ROM 256K Flash ROM CPU voltage 3.5v 3.4v 3.3v 3.2v 3.1v 3v 2.9v 2.8v Function 166 MHz 200 MHz 166 MHz MMX 200 MHz MMX 233 MHz MMX P150+ P166+ P150+ P166+ PR90 PR100 PR120 PR133 PR166 PR166 PR200 PR233 Bypass password Check password Disable onboard sound Disable onboard LAN Cypress CY2273 CLK 9148 Acer BIOS OEM LED for IDE & FDD IDE only Suspend Reset L2 cache Interleave/1+4 mode (Intel/Cyrix M1/M2) L2 cache Linear Burst mode (Cyrix M1/M2) Standby power supply -> 1A Standby power supply < 1A Single voltage CPU Dual voltage CPU 2.8v CPU core voltage 2.9v 3.2v 3.31v 3.52v A Switch JP11 JP15 Position 2-3 1-2 2-3 1-4 2-5 3-6 1-2 2-3 CPU 150 MHz 166 MHz 180 MHz 200 MHz SW1 On Off On Off 1-2 2-3 1-2 SW2 Off On Off On 2-3 1-2 1-2 SW3 Off Off Off Off Function 2.7v 2.6v 2.5v Software shutdown External SMI Reset 12v BIOS 5v BIOS 2-3 1-2 1-2 SW4 Off Off Off Off SW5 On On On On SW6 Off Off On On SW7 On On Off Off V65LA As for V65X, except: Switch CN16 Position 3-5 12-13 19-20 Function Power LED Turbo LED Reset V65X Switch SW1 SW2 SW3 SW5-8 CN12 Position On Off On Off On Off SW5 On Off Off 3-5 12-13 19-20 SW6 Off On On SW7 Off On Off SW8 On On On J4/9 Short Short Short Short Open Open Open Open Short Short Short Short J3/8 Short Short Open Open Short Short Open Open Short Short Open Open J2/7 Short Open Short Open Short Open Short Open Short Open Short Open Function 60 MHz host 66 MHz Bypass password Check password OEM BIOS Acer BIOS CPU speed 233 MHz 266 MHz 300 MHz Power LED Turbo LED Reset X1B Dual Pentium Pro Jumper JP2-5 7-10 Position J5/10 Short Short Short Short Short Short Short Short Open Open Open Open Function CPU 1 & 2 Voltage 3.5v 3.4v 3.3v 3.2v 3.1v 3v 2.9v 2.8v 2.7v 2.6v 2.5v 2.4v SW8 On On On On 47 48 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper J12 J13 J14 J15 J16 J18 J19 CN15 J1501 Position Open Open Open Open Open Open Open Open 1-2 2-3 Open Closed Open 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-5,2-6,3-7,4-8 1-5,2-6,4-8 1-5,2-6,3-7 1-5,2-6 2-6,3-7,4-8 2-6,4-8 1-2 2-3 Short Short Open Open Short Open Short Open X3 Quad Pentium Pro Jumper JPX1-3 JP1, 2 JP3 JP4,5 JP6,7 JP8,9 JP11 JP12 JP13 JP14 JP15 Position 1-2,3-4,5-6,7-8 1-2,3-4,7-8 1-2,3-4,5-6 1-2,3-4 3-4,5-6,7-8 3-4,7-8 JP4 JP5 2-3 Open 1-2 1-2 1-2 2-3 JP6 JP7 2-3 Open 1-2 1-2 1-2 2-3 JP8 JP9 2-3 1-2 1-2 2-3 2-3 2-3 1-2 2-3 1-2 2-3 1-2 2-3 Open Function Reserved Reserved 2x CPU 3x 4x 5x 2.5x 3.5x Group 2 CPUs (2 & 4) 2 only 4 only 2&4 Group 1 CPUs (1 & 3) 1 only 3 only 1&3 Groups 1 & 2 1 only 2 only 1&2 Check password Bypass password Reserved Enable onboard VGA Disable Reserved 60 MHz host clock 66 MHz host clock 50 MHz host clock Function 2.3v 2.2v 2.1v No CPU 60 MHz host bus 66 MHz host bus Narrow SCSI Wide SCSI Reserved Reserved Termination on Use BIOS settings Check password Bypass Acer BIOS logo OEM BIOS logo 2x CPU 3x 4x 5x 2.5x 3.5x Buzzer Speaker A Achitec Corp www.achitec.com.tw Achme Computer www.achme.com 486 AL4 PCI/VLB Jumper JC1,4,6 7,8,13 JK1,2 JS1,2 JV1-3 JP4,12 JP6 JP20 Position JC1 2-3 2-3 1-2,3-4 1-2,3-4 1-2,3-4 JK1 1,2 1,3 2 JS1 1-2 2-3 2-3 JV1 2-3 2-3 JP4 In In In In In JC4 2-3 3-4 2-3 3-4 1-2,3-4 JK2 1,2,3 1,2,3 4.5.6 JS2 2-3 1-2 2-3 JV2 1-2 2-3 JP12 1-2 2-3 Out 2-3 Out JC6 2-3 2-3 2-3 2-3 2-4 JC7 2-3 2-3 2-3 2-3 2-4 JC8 2-3 2-3 2-3 2-3 1-2 JV3 1-2 1-2 1-2 2-3 1-2 2-3 None Acme Maybe same as Achme ACORP International www.acorp.com.tw Award BIOS ID (00) The last two numbers of the BIOS part number. Code 0C 9C 9C Motherboard PT-51VL 586VX/5VIA5S 5TX32 Code AC BC Motherboard SD-P5TD 5VX32 vB/5TX52 vE JC13 1-2 1-2 1-2 1-2 2-3 Function CPU Type Intel/AMD SX Intel SX SL Intel/AMD DX/DX2 Intel DX/DX2 SL Curix M7 (+JC11 3) CPU Speed 25 MHz 33 MHz 40 MHz Cache Size 128K (32Kx8) 256K ((32Kx8) 256K (64Kx8) VL Bus <=33 MHz > 33 MHz PCI IDE Rising Edge trigger Falling edge trigger Low Active lever trigger Low Active level trigger No PCI add-in card Use above with BIOS settings Non-NCR 53C810 PCI SCSI NCR 53C810 12v Flash Memory 5v Flash Memory Normal 49 50 The PC Engineer’s Reference Book – Vol 2: Motherboards 586VX San-Li SL-586V? 5VX32 ver B San-Li SL-586V+? Acouire, Inc Acro Computer Corp Acrosser Technology Co www.acrosser.com Activei Systems Inc Pride Corp www.pridecorp.com www.activei.com Acusharp Award BIOS ID The last two numbers of the BIOS part number. Code HC-00 Motherboard Excalibur TX 1569 Code Motherboard Excalibur TX 1569 Same as Shuttle HOT 569 Adcom ADI Award BIOS ID The last two numbers of the BIOS part number. Code 8C-00 Motherboard 4DXP-UC5 Code Motherboard Adlink Technology Ltd www.adlink.com.tw Advanced Integration Research (AIR) See AIR. Out of business, anyway Advanced Jenn Bao Enterprises www.ajb.com.tw A Advanced Logic Research See ALR Advanced Micro Products (AMP) Award BIOS ID The last two numbers of the BIOS part number. Code 9C Motherboard SD-380H Code Motherboard SD-380H Freetech? Advantech www.advantech.com.tw Award BIOS ID The last two numbers of the BIOS part number. Code AC-00 Motherboard PCM 5862 Code Motherboard AEG Olympia Olystar 20F SW1 Jumper 1 2 3 4 Position On* Off On Off On Function Enable COM1 Reserved Enable RTC 1 Enable RTC 0 Disable IRQ2 Enable IRQ2 SW2 Jumper S1 S2 S3-4 S5 S6 S7-8 Position Off* On Off On Memory 256K 512K 640K Do not use Off On Floppy Function Enable floppies Disable floppies 8087 installed 8087 not installed S3 S4 Off Off Bank 1 On Off Banks 1,2 Off On Banks 1,2,3 On On 768K model has 3&4 set off and On. Also set SW3-5 off and SW3-6 On. Reserved Enable Onboard display Disable Onboard display S7 S8 51 52 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper Position Single Dual Function On Off On On SW3 Switch S1-4 S5 S6 S7 S8 Position Bank Address C0000-C3FFF C4000-C7FFF C8000-CBFFF CC000-CFFFF D0000-D3FFF D4000-D7FFF D8000-DBFFF DC000-DFFFF E0000-E3FFF E4000-E7FFF E8000-EBFFF EC000-EFFFF On Off On Off* On Off On Off Function S1 S2 On On On On On Off Off Off On On Off On On Off Off Off On On Off On On Off Off Off Reserved 768K RAM RAM Bank enable RAM Bank disable 64K ROM 40K ROM 10 MHz 4.77 MHz SW4 Jumper S1 S2 JP1 Position A In B In Function Mono display Colour display Disable Onboard display Enable Onboard display Olystar 40F Jumper JP4,5 JP6,7 JP8,9 JP10,11 JP12,16 Position JP4 2-3 1-2 JP6 1-2 2-3 1-2 JP8 2-3 2-3 1-2 2-3 JP10 2-3 2-3 1-2 JP12 1-2 1-2 JP5 1-2 JP7 1-2 2-3 JP9 1-2 JP11 1-2 JP16 1-2 Function Maths copro 8087 not there 8087 present MGA mode MGA CGA CGA emulate COM1/2&HD Disable COM1 Disable COM2 Disable HD EPROM 27128 27256 27512 HD Enable Disable S3 On On On On Off Off Off Off On On On On S4 On On On On On On On On Off Off Off Off A Olystar 60F/H Jumper JA JC,D JB,C,D Position A JC A B JB B A Function VGA Enabled (B Disabled) JD B B JC B A COM1 disable COM2 disable JD A A Disk controller disable Disk controller enable Olystar 60 H16 Jumper JP1 JP2 JP7,8,10 JA1 Position Off On 1-2 2-3 JP7 1-2 2-3 5-6 1-2* 1-2 JP8 1-2 2-3 JP10 1-2 2-3 5-6* 4-5 Function System locked System unlocked Coprocessor asynchronous mode Coprocessor synchronous mode BIOS Type 16-bit 8-bit 32K cache 64K cache 128K cache Olystar 70 H20 VGA Board Jumper J1 J2 J3 Position In Out In Out In Function VGA auto setting by BIOS VGA disabled VGA connect IRQ9 VGA disconnect IRQ9 VGA BIOS enabled Position A B 20 16 20 16 Function Password check enabled Password check disabled 20 MHz 16 MHz DRAM CAS precharge 1/2T DRAM CAS precharge T Main Board Jumper J3 J4 J5 Olystar 70S Jumper J2 J4 J7 J8 J9 J14 J15 J20 Position In In In In Out In Out In Out Function VGA enabled VGA BIOS enabled Password enabled IRQ9 to Onboard VGA IRQ9 to expansion card Oscillator External System BIOS only VGA and System BIOS combined CPU speed MEMCS16 53 54 The PC Engineer’s Reference Book – Vol 2: Motherboards Olystar 80T33 SW1 Switch S1-4 S5-8 Function EPROM 27128 27256 27512 I/O recovery delay 0 1 2 3 4 5 6 8* 9 10 11 12 13 14 15 Position S1 On On* Off S5 Off Off Off Off Off Off Off On On On On On On On On S2 Off Off* On S6 Off Off Off Off On On On Off Off Off Off On On On On S3 On Off* Off S7 Off Off On On On Off On Off Off On On Off Off On On S4 Off On On S8 Off On Off On On On Off Off On Off On Off On Off On SW2 Switch S1 S2 S3 S4 S5-7 S8 S9 S10 JP6-8 JP12 JP13-16 Position On* Off Off* On Off* On Off* On S5 Off* On Off* On Off* On Off* On JP6 1-2 2-3* 1-2* 2-3 RAM 2 Mb 4 Mb 6 Mb 4 Mb 8 Mb S6 Off* On S7 On* Off JP7 1-2 2-3* JP8 1-2 2-3* Bank A A&B A B A A&B Function 25-pin=COM1, 9-pin=COM2 9-pin=COM1, 25-pin=COM2 Enable COM1 Disable COM1 Enable COM2 Disable COM2 Enable Printer Port Disable Printer Port Printer Port LPT1 LPT2 RAM BIOS selected ROM BIOS selected Primary display Mono or extended Primary display CGA DRAM Bank B enabled DRAM Bank B disabled Maths Copro There Not there Remap 256K to FA0000-FDFFFF Do not remap or permit RAM cacheing of F00000-FFFFFF Modules JP13 JP14 JP15 JP16 512 x 9 2-3* 2-3* 1-2* 1-2* 512 x 9 2-3 2-3 1-2 1-2 512 x 9 1-2 1-2 1-2 1-2 1M x 9 1M x 9 1-2 1-2 2-3 2-3 1M x 9 1-2 1-2 2-3 2-3 AIR Advanced Integration Research - out of business A Award BIOS ID The last two numbers of the BIOS part number. Code FC Motherboard 54CPI Code Motherboard 486ED EISA Jumper J1-3 Position J1 Off On On J2 Off 1-2 2-3 Function CPU Type 486SX (P23) 486DX and 486DX2 (P24) 487SX , P23T, OverDrive J3 2-3 1-2 1-2 Cache Size Jumper JC1 JC2 JC3 JC4 JC5 JC6 JC7 JP9 64K 1-2 1-2 1-2 1-2 1-2 1-2 1-2 2-3 128K 2-3 2-3 1-2 1-2 1-2 1-2 2-3 1-2 256K 2-3 2-3 2-3 1-2 1-2 2-3 2-3 4-5 512K 2-3 2-3 2-3 2-3 2-3 2-3 2-3 1-2 CPU Clock Frequency Jumper JO1 JO2 JO3 JO4 JL2 20MHz Off On On On Off 25MHz On Off On On Off 33MHz On On Off On Off J2 Open 1-2 2-3 JO2 Short Short Open Open J3 2-3 1-2* 1-2 JL2 Open Open Short Short JC5 1-2 1-2 2-3 JP9 1-2 4-5 1-2 50MHz Off Off Off Off On 486EI v1.0 EISA/VESA Jumper J1-3 JO1,2 JL2 JP12 JC4,5 JP9 Position J1 Open Short Short JO1 Short Open Short Open 1-3,2-4 3-5,4-6 JC4 2-3 1-2 2-3 Function CPU Type 486SX DX, DX2, DX4 487SX, P23T, Overdrive CPU External Clock 25 MHz 33 MHz 40 MHz 50 MHz 5v CPU 3.3v CPU Cache Size 128K 256K* 512K 55 56 The PC Engineer’s Reference Book – Vol 2: Motherboards 486EI v1.2 EISA/VESA Jumper J1-3 J12 JO1,2 JL2 J12 JC4,5,9 Position J1 Open Short Short Short JO1 Short Open Short Open 1-3,2-4 3-5,4-6 JC4 1-2 2-3 J2 Open 2-3 1-2 1-2 JO2 Short Short Open Open J3 2-3 1-2 1-2 1-2 JL2 Open Open Short Short JC5 1-2 2-3 JC9 4-5 1-2 Function CPU Type 486SX 487SX DX, DX2 DX4 CPU External Clock 25 MHz 33 MHz 40 MHz 50 MHz 5v CPU 3.3v CPU Cache Size 256K* 512K 486MI v1.0 Jumper JP1-2 ID2 JP22-24 JP29 JP30 Position JP1 1-2,3-4 2-3 Open 1-2 2-3* JP22 2-3 1-2 2-3 JP22 2-3 1-2 2-3 1-2* 2-3 1-2 2-3 Function CPU Type DX, DX2 487SX, ODPSX 486SX 0 wait state write transfer 1 wait state write transfer IDE recovery time at 33 MHz or less 9T, Low Speed (Default) 7T, Middle Speed 5T, High Speed IDE recovery time at 40 MHz or more 13T, Low Speed 11T, Middle Speed 9T, High Speed Enable onboard VL IDE Disable LPT IRQ7 LPT IRQ5 JP2 1-2,3-4 2-3 JP23 1-2 2-3 2-3 JP23 2-3 1-2 1-2 JP24 2-3 2-3 2-3 JP24 1-2 2-3 2-3 CPU External Clock Speed 20 MHz 25 MHz 33 MHz 40 MHz 50 MHz JP5 Short Open Open Open Open JP6 Open Short Short Open Open JP7 Open Short Open Short Open ID3 1-2 1-2 1-2 2-3 2-3 JP26 2-3 2-3 2-3 1-2 1-2 Cache Size 64K 128K 256K 256K JP10 1-2 2-3 2-3 2-3 JP11 1-2 1-2 2-3 2-3 JP12 1-2 1-2 1-2 2-3 JP13 2-3 1-2 2-3 1-2 JP14 1-2 1-2 2-3 1-2 JP15 1-2 2-3 2-3 2-3 JP27 2-3 2-3 2-3 1-2 1-2 JP28 1-2 1-2 1-2 2-3 2-3 A 486MI v2.21 Jumper JP1-2 JP38 JP3 JP5-7 ID3 JP8 JP9 JP16 JP17 JP20 JP22 JP23,24 JP25-27 JP28 JP29 JP30 JP30 JP31 JP37 ID2 W1 Cache Size 128K 256K* 512K Position JP1 1-2 1-2 Open 2-3 Open 2-3 1-2 JP5 Short Short Short Short 1-2 2-3 1-2 Open Short 1-2 2-3 1-2 2-3 1-2 2-3 JP23 1-2 2-3 1-2 2-3 JP25 Open 2-3 1-2 JP2 1-2,3-4 1-2,3-4 2-3 1-2,2-3 JP38 1-2 Open 1-2 1-2 JP6 Short Short Open Open JP7 Short Open Short Open JP24 1-2 1-2 2-3 2-3 JP26 Open 2-3 1-2 JP27 2-3 1-2 1-2 ID3 1-2 1-2 2-3 2-3 1-2 2-3 1-2 2-3 1-2 2-3 2-3 1-2 1-3,2-4 3-5,4-6 JP10 2-3 2-3 2-3 JP11 1-2 2-3 2-3 JP12 1-2 1-2 2-3 JP13 1-2 2-3 1-2 Function CPU Type DX, DX2 DX4 486SX 487SX, ODPSX,P24T DX4 3x DX4 2.5x DX4 2x CPU Frequency 25 MHz 33 MHz* 40 MHz 50 MHz Enable Fast Gate A20 Disable SIM2 not accept 512Kx36, 2Mx36, 8Mx36 EGA, VGA or mono display CGA Normal Enable Flash Programming Normal Clear CMOS Enable onboard IDE Disable IDE Speed 0 2 4 6 LPT ECP mode Disable DMA1 DMA3 Reserved Reserved LPT IRQ7 LPT IRQ5 LPT IRQ7 LPT IRQ5 IRQ4 wakes up system IRQ3 wakes up system Reserved 1 VL bus wait state 0 VL bus wait state 5v CPU 3.3v CPU JP14 1-2 2-3 1-2 JP15 2-3 2-3 2-3 57 58 The PC Engineer’s Reference Book – Vol 2: Motherboards 486MIS Jumper JP1-2 JP18 JP3-5 ID3 JP16 JP17 JP22 JP28 JP29,30 JP32 W1 I1,2 W1 B1,2 W1E ID2 Cache Size 64KB 128KB 256KB 512KB Position JP1 1-2 2-3 Open Open JP3 Open Short Short Open Open Open Short Open 1-2 2-3 1-2 2-3 JP29 Short Open Short Open Open Short I1 I2 B1 In In Out In Out 1-2 2-3 JP7 1-2 1-2 2-3 2-3 JP2 1-2,3-4 1-2,3-4 2-3 2-3 JP4 Short Open Short Open Short JP18 1-2 1-2 1-2 2-3 JP5 Short Short Open Short Open ID3 1-2 1-2 1-2 2-3 2-3 JP30 Short Short Open Open B2 In Out Out JP8 1-2 1-2 1-2 2-3 JP9 1-2 2-3 2-3 2-3 JP10 1-2 2-3 2-3 2-3 JP11 1-2 2-3 2-3 2-3 Function CPU Type DX, DX2 487SX, ODPSX 486SX Cyrix 486 DLC CPU Frequency 20 MHz 25 MHz 33 MHz* 40 MHz 50 MHz EGA, VGA or mono display CGA Enable onboard VL IDE LPT IRQ7 LPT IRQ5 Normal Enable Flash Programming IDE recovery time 300ns 240ns 180ns 120ns Normal BIOS does infinite loop and clears password – disable SCSI with I2 and E on W1. IRQ10 IRQ11 SCSI BIOS segment location DC00 D8000 Disable SCSI works SCSI doesn't work 0 wait state write transfer 1 wait state write transfer JP12 1-2 1-2 2-3 1-2 JP13 1-2 1-2 2-3 2-3 JP14 1-2 1-2 1-2 2-3 486PH PCI/VESA Jumper JP1 JP2 JP3 JP14 CPU Type Intel 486SX Position 1-2 2-3 Open Short 1-2 1-2 Function Normal Clear CMOS (CMOS RAM is in ODIN OEC12C887A) VGA, EGA or mono display CGA Reserved Reserved JP10 Short JP16 Open JP23 Open JP24 2-3 JP25 1-2 JP15 2-3 1-2 2-3 1-2 A CPU Type JP10 Intel 486DX, DX2, DX4 (Default) Short AMD 486DX, DX4* Short AMD 486DX2* Short Cyrix 3.3v 486DX, DX2 Short Cyrix 5v 486DX, DX2 Short Chipset auto detects AMD 3.3-Volt and 5-Volt CPUs Clock Speed 33 MHz 25MHz JP6 1-2 2-3 JP19 Open Short JP20 Short Open JP16 Open Open Open Short Open JP23 Open Short Open Short Short JP24 1-2 1-2 1-2 1-2 1-2 JP25 1-2 2-3 2-3 2-3 2-3 JP21 Short Open Cache Size JP8 JP9 JP11 JP12 128KB Short Open Open Open 256KB Open Short Short Open 256KB* Short Open Short Open 512KB Short Open Short Short For 256K with 64Kx8 SRAM, in the CMOS Chipset Setup menu, set L2 Cache Configuration to N-Leaved. 486PI Jumper JP1 JP2 JP3 JP5 JP4,6-7 JP8-12 JP13 JP14 JP17 JP18 JP19-22 JP23 JP24 JP25 JP26 JP27 JP28 JP29 JP30 Green Position 1-2 2-3 1-2 1-2 2-3 Open Short JP4 Open 1-2 2-3 JP8 Short Open Short 1-2 1-2 Short Open JP19 Open Short 2-3 Open 1-2 2-3 Short Open 1-2 Open Open Open Short JP6 Open 1-2 2-3 JP9 Open Short Open JP7 1-2 2-3 2-3 JP10 Open Short Open JP11 Open Short Short JP20 Short Open JP21 Short Open JP22 1-2 2-3 JP12 Open Open Short Function Normal operation Clear CMOS Reserved LPT IRQ7 LPT IRQ5 VGA, EGA or Mono CGA ECP mode Enable 4 floppies, No ECP DMA3 DMA1 Cache size 128K 256K 512K Reserved Reserved Reserved Reserved CPU Speed 33 MHz 25 MHz Reserved Reserved 486DX4, DX2, DX, P24D, P24T, 487SX 486SX Reserved Reserved Reserved Reserved Reserved Normal – power saving triggered by system timer Force system into power saving 59 60 The PC Engineer’s Reference Book – Vol 2: Motherboards 486SH Jumper JP1-3 20-21 JP4 JP7 JP10 JP13 JP11-12 14,5 JP15-16 18-19 Position JP1 1-2 1-2 2-3 2-3 1-2 Open Short 1-2 2-3 Short Open JP11 Open Short Short Open Open JP15 1-2 1-2 2-3 2-3 JP2 2-3 1-2 2-3 JP3 1-2 2-3 2-3 JP20 1-2 1-2 2-3 JP12 Open Short Open Short Open JP16 1-2 2-3 Open Open JP14 Short Open Open Open Open JP18 Short Short Open Open JP5 1-2 1-2 1-2 2-3 2-3 JP19 Short Short Short Open JP2 1-2 2-3 2-3 JP3 1-2,3-4 2-3,4-5 1-2,3-4 JP4 1-2 1-2 2-3 JP6 On On Off Off JP9 On On Off On JP7 Off On Off On JP11 3-4 3-4 Off 2-3 JP29 1-2 1-2 2-3 2-3 JP36 1-2 2-3 1-2 1-2 JP2 1-2 2-3 2-3 2-3 JP3 1-2,3-4 2-3,4-5 1-2,3-4 1-2,3-4 JP4 1-2 1-2 1-2 2-3 JP21 1-2 2-3 2-3 Function Cache size 128K 256K 512K 1 wait state write transfer 0 wait state write transfer VGA, EGA or monochrome CGA Normal Clear CMOS CPU clock 8 MHz when power saving CPU full seed CPU Speed 20 MHz 25 MHz 33 MHz 40 MHz 50 MHz CPU Type 486DX,DX2 487SX, ODP486SX 486SX QFP 486SX 486SH v3.1 VL Bus Jumper JP1-4 J3 JP5-7,29 JP8-9 11,36 JP16 JP17 Position JP1 1-2 2-3 1-2 1-2 2-3 JP5 On Off On Off JP8 1-2 1-2 2-3 1-2 1-2 2-3 Off On Function Cache size 128K 256K 512K Turbo disabled Enabled CPU Speed 25 MHz 33 MHz 40 MHz 50 MHz CPU Type 486DX,DX2 486DX4 3.3v 486SX 487SX,ODP 486SX,P24T Normal Clear CMOS VGA, EGA or Mono CGA 486SH v3.1 Jumper JP1-4 33 Position JP1 1-2 2-3 1-2 1-2 JP33 2-3 2-3 1-2 2-3 Function Cache size 128K 256K 256K 512K A Jumper JP5-7,29 JP8-9 11,36 JP16 JP17 Position JP5 On Off On Off JP8 1-2 1-2 2-3 1-2 1-2 2-3 Off On JP6 On On Off Off JP9 On On Off On JP7 Off On Off On JP11 3-4 3-4 Off 2-3 JP29 1-2 1-2 2-3 2-3 JP36 1-3,2-4 3-5,4-6 1-3,2-4 1-3,2-4 JP2 1-2 2-3 2-3 2-3 JP6 On On Off Off JP9 On On Off On On JP3 1-2,3-4 2-3,4-5 1-2,3-4 1-2,3-4 JP7 Off On Off On JP11 3-4 3-4 Off 2-3 3-4 JP4 1-2 1-2 1-2 2-3 JP29 1-2 1-2 2-3 2-3 JP36 1-3,2-4 3-5,4-6 1-3,2-4 1-3,2-4 3-5,4-6 Function CPU Speed 25 MHz 33 MHz 40 MHz 50 MHz CPU Type 486DX,DX2 486DX4 3.3v 486SX 487SX,ODP 486SX,P24T Normal Clear CMOS VGA, EGA or Mono CGA 486SH v3.1a Jumper JP1-4 33 JP5-7,29 JP8-9 11,36 JP16 JP17 Position JP1 1-2 2-3 1-2 1-2 JP5 On Off On Off JP8 1-2 1-2 2-3 1-2 1-2 1-2 2-3 Off On JP33 2-3 2-3 1-2 2-3 JP30 Off Off Off Off On Function Cache size 128K 256K 256K 512K CPU Speed 25 MHz 33 MHz 40 MHz 50 MHz CPU Type 486DX,DX2 AMD DX2, 486DX4 3.3v 486SX 487SX,ODP 486SX,P24T AMD 486DX4 3.3V Normal Clear CMOS VGA, EGA or Mono CGA 486VP (D) Jumper JP2 JP5 JP6 JP9 JP10A, B, C, D, J JP11 JP12 JP20-21 62 JP29 Position 1-2 2-3 Off On Off 2-3 Off 2-3 1-2 2-3 JP20 1-2 2-3 2-3 2-3 JP21 1-2 2-3 Off JP62 Off Off 2-3 Function Normal Clear CMOS VGA, EGA or Mono CGA Reserved Reserved Reserved Reserved Disable flash programming Enable Cache size 256K 512K 1Mb – set CMOS Reserved 61 62 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper JP30 JP31 JP32 JP34 JP35 JP36 JP38 JP40 JP41 JP42 JP50 JP51 JP53 JP54 JP55 JP56 JP57 JP58 JP59 JP60 JP61 JP63 JP64 JP65 JP66 JP68 JP70 JP71 JP80 JP81 Position 2-3 2-3 2-3 On 1-2 1-2 1-2, 4-5, 7-8, 11-12 Off 1-2 Off Off Off 1-2,3-4 1-2,3-4 Off Off 1-2 2-3 1-2 1-2 Off Off 1-2 1-2 1-2 1-2 2-3 Off 1-3,2-4 3-5,4-6 On Function Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved 5v CPU 3.3v CPU Reserved External Clock Speed JP26 JP27 25 MHz ON 1-2* 33 MHz ON 2-3 40 MHz OFF 1-2 50 MHz OFF 2-3 For DX4, set JP27 off for 25MHz, JP28 off for 33MHz CPU 486DX4, DX2, DX 486SX 487SX, P24T JP19 OFF OFF OFF SIM5-SIM8 BANK0 (1Mx9, 4Mx9) NONE SIM1-SIM4 BANK1 (1Mx9, 4Mx9) NONE BANK0 (1Mx9, 4Mx9) NONE JP69 OFF OFF OFF JP28 2-3 1-2* 2-3 1-2 JP15 1-2 1-2 1-2 JP7 ON OFF OFF OFF JP37 2-3 OFF 1-2 JP33 OFF OFF ON ON JP52 OFF OFF OFF JP8 1-2 1-2 2-3 2-3 JP8A 2-3 2-3 1-2 1-2 JP61 2-3 2-3 1-2 1-2 JP13 OFF OFF ON ON JP18 1-2,3-4 2-3 1-2,3-4 SIM9 NONE SIM10 NONE JP22 1-2 JP23 1-2 JP24 2-3 JP25 2-3 BANK0 (1Mx36, 4Mx36) NONE BANK1 (1Mx36, 4Mx36) BANK1 (1Mx36, 4Mx36) 2-3 2-3 1-2 1-2 1-2 2-3 1-2 2-3 A SLOTS PCI0, PCI1, PCI2 IRQ9 IRQ10 IRQ11 IRQ12 IRQ15 N/A SLOT PCI3 (IDE Controller) N/A N/A N/A N/A N/A IRQ14 JP10F JP10G JP10H JP10I JP10J JP10K 1-2 OFF OFF OFF OFF OFF OFF 1-2 OFF OFF OFF OFF OFF OFF 1-2 OFF OFF OFF OFF OFF OFF 1-2 OFF OFF OFF OFF OFF OFF 1-2 OFF OFF OFF OFF OFF OFF 2-4 54CDP v1.0 Dual Pentium EISA/PCI Jumper Position JS1,4 JS1 Open 2-3 JS3 Open Short JS5,7,8 JS5 Open Short Short JS6 2-3 1-2 JS9 1-2 2-3 JS11 Short Open Short JS13 Short Open JS15 1-2 2-3 JS16 Short Open JS18 Open Short JS4 Open Short JS7 Open 1-2 2-3 JS8 Open 1-2 2-3 Function Floppy Normal (2) Enhanced (4) Normal operation Clear CMOS LPT ECP Mode Normal DMA1 DMA3 LPT IRQ7 LPT IRQ5 Flash BIOS programming Normal 8/16-bit Fast Wide SCSI 8-bit Fast SCSI 16-bit Fast Wide SCSI Single CPU Dual CPU 256K cache 512K cache VGA, EGA or Mono CGA 90 MHz CPU 100MHz 54CDP v2.21 Jumper JS1,3 JS2 JS4,6,7 JS5 JS9 JS10 JS11,20 21,23 Position JS1 Open 2-3 Short JS4 Open Short Short 1-2 2-3 1-2 2-3 Open Short Short JS11 Open JS3 Open Short JS6 Open 1-2 2-3 JS7 Open 1-2 2-3 JS20 Open JS21 Open JS23 Open Function Floppy Normal (2) Enhanced (4) Clear CMOS LPT ECP Mode Normal DMA1 DMA3 LPT IRQ7 LPT IRQ5 Flash BIOS programming Normal 8-bit Ultra Fast SCSI 8/16-bit Ultra fast Wide SCSI 16-bit Ultra fast Wide SCSI Clock frequency 75 MHz 63 64 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper Position Open Open Short Short Short Short Short Open 1-2 2-3 1-2 2-3 1-2 2-3 JS18 1-2 2-3 1-3,2-4 3-5,4-6 JS12 JS13 JS15 JS17 JS18,19 JS24 Open Short Open Short Open Short Short Short Short Short Short Short Open Open Open Open Short Short JS19 1-2 2-3 Function 90 MHz 100 MHz 120 MHz 133 MHz 150 MHz 167 MHz Single CPU Dual CPU 256K cache 512K cache Flash programming mode Normal VRE CPU (3.53v) STD & VR CPU (3.37v) Cache 3.3v cache 5/3.3v cache PCI SCSI sharing with PCI slot 4 PCI SCSI sharing with PCI slot 1 54CEP v1.0 Item CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Problems Jumper JO1 JP5 JP6 JP8 JP10 JP16 Description Pentium 90/100 Mercury AMI 4 EISA/5 PCI 128 Mb 256/512 L2 2S, PS/2, 1P Position Open Short Open Short Short Open Short Open Short 2-3 1-2 1-2 2-3 Notes All support busmastering 72-pin SIMMs FW SCSI Adaptec 7870 Quantum 1 GB drives may not communicate at full speed with the 7870 – set communication to 8 MB/sec. Function 90 MHz CPU 100MHz 8-bit Fast SCSI 8/16-bit Fast Wide SCSI 16-bit Fast Wide SCSI VGA, EGA or Mono display CGA Normal Clear CMOS LPT IRQ7 LPT IRQ5 256K cache 512K cache 54CEP v1.2 Pentium EISA/PCI Jumper JO1 JP5 JP6 JP8 Position Open Short Short Open Short Open Function 90 MHz CPU 100MHz 8/16-bit Fast Wide SCSI Colour Display Mono Normal A Jumper JP10 JP16 JP17 JP32,33 JP34-36 Position Short 2-3 1-2 1-2 2-3 1-2 2-3 JP32 Open Short JP34 Open 1-2 2-3 JP33 Open 2-3 JP35 Open 1-2 2-3 JP36 Open Short Short Function Clear CMOS LPT IRQ7 LPT IRQ5 256K cache 512K cache Flash programming mode Normal Floppy Normal (2) Enhanced (4) ECP Mode Normal DMA1 DMA3 54CSH Pentium ISA/PCI Jumper JS2 JS3 JS4 JS7-9 JS10 JS11 JS12 JS13,14 Position Open Short 1-2 2-3 Open Short JS7 Short Open Open 2-3 1-2 1-2 JS13 1-2 1-2 2-3 JS8 Open Short Short JS9 Open Open Short JS14 1-2 2-3 2-3 SIMMs in SIM1, SIM2 256Kx36, 1Mx36, 4Mx36, 16Mx36 256Kx36, 1Mx36, 4Mx36, 16Mx36 512Kx36, 2Mx36, 8Mx36 512Kx36, 2Mx36, 8Mx36 512Kx36, 2Mx36, 8Mx36 Function VGA, EGA or Mono CGA Normal Flash BIOS programming Normal Clear CMOS CPU Clock 75 MHz 90 MHz 100 MHz Reserved Reserved Reserved Cache size 256K 512K 1 Mb SIMMs in SIM3, SIM4 None 256Kx36, 1Mx36, 4Mx36, 16Mx36 None 256Kx36, 1Mx36, 4Mx36, 16Mx36 512Kx36, 2Mx36, 8Mx36 54CMI v1.1 Jumper JO1-3 JP4,5 JP6 Position JO1 Open Open Short JP4 Open Open Short 2-3 JO2 Open Short Short JP5 Open Short Short JO3 Short Open Open Function CPU Frequency 75 MHz 90 MHz 100MHz Cache size 256K 512K 1 Mb Disable Flash programming JS5 2-3* 1-2 2-3 2-3 2-3 65 66 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper JP14 JP15 JP29-31 JP32 JP35 Position 1-2 2-3 1-2 1 2 3 JP29 Open Short Short 1-2 2-3 Open Short JP30 Open 1-2 2-3 JP31 Open 1-2 2-3 Function Enable Normal Clear CMOS Controls VSYNC. Connect to pin 12 of VGA Feature connector. Controls HSYNC. Connect to pin 11 of VGA Feature connector. Enable/disable video signals. Connect to pin 18 of Feature connector. 4 floppies/ECP Enable/No No/DMA3 No/DMA1 LPT IRQ7 LPT IRQ5 Enable onboard IDE Disable 54CPI Jumper JS1 JS2,3 JS4 JS5 JS6 JS7 JS8 JS9-12 JS13-14 20-21 JS15-17 JS18 JS19 JS22 JS23 JS24 JS25 Position 1-2 2-3 JS2 Open 2-3 1-2 Open 1-2 1-2 Open Short 1-2 2-3 JS9 1-2 2-3 1-2 2-3 1-2 JS13 Short Open JS15 1-2 2-3 Open 1-2 Short Short Short Short JS3 Open 2-3 1-2 JS10 2-3 1-2 1-2 1-2 1-2 JS14 Short Open JS16 1-2 2-3 JS11 1-2 1-2 1-2 2-3 2-3 JS20 Open Short JS17 1-2 2-3 JS7 Open 1-2 2-3 JS6 JS8 Open 1-2 2-3 JS12 2-3 2-3 1-2 2-3 1-2 JS21 Open Short Function LPT IRQ7 LPT IRQ5 ECP Mode Disable DMA1 DMA3 Reserved Reserved Reserved VGA, EGA or Mono display CGA Normal Clear CMOS CPU Frequency 75 MHz 90 MHz 100MHz 120 MHz 133 MHz SRAM Mixed mode 3.3v Cache size 256K 512K Reserved Reserved Reserved Reserved Reserved Reserved 54CPI v2.10 Jumper JS1,7-8 JS2,6 Position JS1 Open Short Short JS2 Function ECP Mode Normal DMA3 DMA1 Floppy Mode A Jumper JS3-4 JS5 JS9-11 JS25,32 JS12-13 23-24 JS15 JS16 19-21 JS17 JS18 JS22 JS26-30 JS31 Position Open Short JS3 1-2 2-3 1-2 2-3 JS9 1-2 1-2 2-3 1-2 2-3 1-2 2-3 JS12 Short Open Open Short JS16 1-2 2-3 2-3 1-2 2-3 2-3 Open Short 2-3 1-2 Open 2-3 JS4 1-2 2-3 JS10 2-3 1-2 2-3 1-2 2-3 1-2 2-3 JS13 Short Open JS11 1-2 2-3 2-3 2-3 2-3 2-3 2-3 JS23 Open Short JS25 1-2 1-2 1-2 1-2 1-2 2-3 2-3 JS24 Open Short JS19 2-3 1-2 2-3 JS20 1-2 1-2 2-3 JS21 1-2 2-3 2-3 JS32 1-2 1-2 1-2 2-3 2-3 2-3 2-3 Function Normal Enhanced COM2 mode Standard IR LPT IRQ7 LPT IRQ5 CPU Frequency 75 MHz 90 MHz 100MHz 120 MHz 133 MHz 150 MHz 166 MHz SRAM Mixed mode 3.3v VGA, EGA or mono display CGA Cache size 256K/async 512K/async Module 12v flash programming 5v flash programming Clear CMOS Disable CPU pipeline mode Reserved STD or VR CPU voltage VRE 54CPI v3 Jumper JS5 J03 JS12-13 23-24 JS15 JS17 JS18 JS31 Position 1-2 2-3 Short Open JS12 Short Open Open Short 1-2 2-3 1-2 2-3 2-3 1-2 JS13 Short Open JS23 Open Short JS24 Open Short 54TDP Dual Pentium Jumper JP10-11 JS14 Position JP10 Open JP11 Open JS14 2-3 Function CPU Type P55 Function LPT IRQ7 LPT IRQ5 66 MHz CPU speed 60 MHz CPU speed SRAM Mixed mode 3.3v VGA, EGA or mono display CGA 12v flash programming 5v flash programming Normal Clear CMOS STD or VR CPU voltage VRE 67 68 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper JS7 JS8-9 JS13 JS10 JS11 JS12 CLCMOS CLPSWD FLASH MONO Position Short 1-2 2-3 JS8 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 2-3 1-2 1-2 2-3 1-2 1-2 2-3 1-2 2-3 1-2 2-3 Short 1-2 JS9 1-2 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 JS13 Open Open Open 2-3 2-3 1-2,2-3 1-2,2-3 1-2 1-2 Function P54 Single CPU Dual CPU CPU Frequency 75 MHz 90 MHz 100MHz 120 MHz 133 MHz 150 MHz 166 MHz 180 MHz 200 MHz RAID support card not installed RAID support card installed 16-bit SCSI device 8-bit SCSI device Wide SCSI termination with low byte Always Clear CMOS Normal Clear Password 12v Flash EPROM 5v Flash EPROM Colour Display Mono 54TPI Jumper JS2 JS3 JS4,5 JS6-7 JS8 JS9-11 JS12-14 JS16 JS15 JS18 Position 2-3 1-2 1-2 2-3 JS4 1-2 2-3 JS6 2-3 1-2 1-2 2-3 JS9 2-3 1-2 1-2 JS12 1-2 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 2-3 1-2 2-3 JS5 1-2 2-3 JS7 1-2 2-3 JS10 Open 1-2 2-3 JS13 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 JS11 Open 1-2 2-3 JS14 2-3 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 JS16 Open Open Open 3-4 3-4 1-2,3-4 1-2,3-4 1-2 1-2 Function Normal Clear CMOS Enable PS/2 mouse Disable COM2 Normal IR Floppy Mode Normal (2) Enhanced (4) LPT IRQ7 LPT IRQ5 ECP Mode Normal DMA1 DMA3 CPU Frequency 75 MHz 90 MHz 100MHz 120 MHz 133 MHz 150 MHz 166 MHz 180 MHz 200 MHz 3.3v CPU A Jumper Position 1-2 PSWD 1-2 2-3 1-2 2-3 1-2 2-3 Function 3.45v CPU Fast 8-bit SCSI Fast and Wide 16-bit SCSI Clear Password Normal 12v Flash EPROM (Intel) 5v Flash EPROM (SST) Colour Display Mono Position 2-3 1-2 1-2 2-3 JS12 1-2 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 2-3 1-2 JS18 2-3 1-2 1-2 2-3 1-2 2-3 1-2 2-3 Function Normal Clear CMOS Enable PS/2 mouse Disable CPU Speed 75 MHz 90 MHz 100MHz 120 MHz 133 MHz 150 MHz 166 MHz 180 MHz 200 MHz Fast 8-bit CPU Fast and Wide 16-bit SCSI CPU Type P55C (Inte) P54C (Intel)/Cyrix/AMD Clear Password Normal 12v Flash EPROM (Intel) 5v Flash EPROM (SST) Colour Display Mono FLASH MONO 54TPI v5 Jumper JS2 JS3 JS12-14 JS16 JS15 JS18-21 PSWD FLASH MONO JS13 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 JS14 2-3 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 JS16 Open Open Open 3-4 3-4 1-2,3-4 1-2,3-4 1-2 1-2 JS19 2-3 1-2 JS20 2-3 1-2 JS21 2-3 1-2 586EP Pentium EISA/PCI Jumper J03 JP5 JP6 JP8 JP10 JP12,16 Position Short Open Open Short Short Open Short Open Short 1-2 2-3 JP12 1-2 2-3 JP16 1-2 2-3 Function 66 MHz CPU speed 60 MHz CPU speed 8-bit Fast SCSI 16-bit Fast wide SCSI Both 8-bit/16-bit SCSI VGA, EGA or Mono CGA Normal Clear CMOS LPT IRQ7 LPT IRQ5 Cache Size 256K 512K 69 70 The PC Engineer’s Reference Book – Vol 2: Motherboards 586MI Jumper JO1-3 J05-7 JP19 JP13 JP14 JP15 JP18 JP21-23 JP30 JP32 Cache Size 64KB 128KB 256KB 512KB Position JO1 Open Short Open JO5 Short Open Open 2-3 Open Short 2-3 1-2 Short Open JP21 2-3 1-2 2-3 Open 1-2 2-3 JP1 1-2 2-3 1-2 2-3 JO2 Short Short Open JO6 Open Open JO3 Open Open Short JO7 Open Open JP22 2-3 2-3 1-2 JP23 2-3 2-3 2-3 JP2 1-2 2-3 1-2 2-3 JP3 1-2 2-3 1-2 2-3 JP4 Open Open Open Short P5TPI Same as 54TPI. P5TXA Jumper JP2 PWSELI Voltage 3.5V 3.4V 3.3V 3.2V 3.1V 3.0V 2.9V 2.8V 2.7V 2.6V 2.5V Position 1-2 2-3 1-2 2-3 #1 ON OFF ON OFF ON OFF ON OFF ON OFF ON Function Normal Clear CMOS ATX power supply AT power supply #2 ON ON OFF OFF ON ON OFF OFF ON ON OFF #3 ON ON ON ON OFF OFF OFF OFF ON ON ON #4 ON ON ON ON ON ON ON ON OFF OFF OFF JP19 Open Short JP5 Open Open Short Short Function CPU Frequency 60 MHz 66 MHz 50MHz VL Bus speed 33 MHz 40 MHz Normal Flash programming VGA, EGA or mono CGA Normal Clear CMOS 1 wait state write transfer 0 wait state write transfer VL Bus IDE Recovery Time Speed 0 – High speed IDE Speed 1 – Medium speed Speed 2 – Slow speed Enable onboard VL-bus IDE LPT IRQ7 LPT IRQ5 JP6 Open Short Short Short A CPU Speed 100MHz 120MHz 133MHz 150MHz 166MHz 180MHz 200MHz 233MHz 266MHz Ratio 1.5x 2.0x 2.5x 3.0x 3.5x 4.0x 4.5x Clock 50MHZ 55MHZ 60MHZ 66MHZ 75MHZ #1 ON OFF ON OFF ON OFF ON ON ON #4 OFF ON ON OFF OFF ON ON #1 ON ON OFF ON OFF #2 OFF ON OFF ON OFF ON OFF OFF OFF #5 OFF OFF ON ON OFF OFF ON #2 ON ON ON OFF ON #3 ON ON ON ON ON ON ON ON ON #4 OFF ON ON ON ON OFF OFF OFF ON #5 OFF OFF OFF ON ON ON ON OFF OFF #6 ON OFF OFF OFF OFF OFF OFF OFF ON #6 ON OFF OFF OFF OFF ON ON #3 ON OFF ON ON OFF P5TXI Socket 7 Switch SW1 S1-4 SW2 S1-7 S8 JP3 Position S1 On Off On Off On 2, 6 On 6 On 2,3,6 On 2,3 On 4 On On Off 1-2 2-3 S2 On Off Off Off Off S3 On Off Off On Off S4 On On On On Off Function CPU Voltage 3.54v 2.8v 2.9v 3.2v 2.1v 150 MHz CPU Speed 180 MHz CPU Speed 200 MHz CPU Speed 233 MHz CPU Speed 266 MHz CPU Speed SCSI High and Low Byte Termination in setup SCSI High Byte Termination always enabled Normal Clear CMOS P6NDI Dual Pentium Pro ATX CPU JSS1 150MHz 2-3 180MHz 1-2 200MHz 1-2 P6NDP Dual Pentium Pro ATX JSS2 1-2 2-3 2-3 JSS3 1-2 1-2 1-2 JSS4 1-2 1-2 1-2 JS1 1-2 1-2 2-3 JS2 1-2 1-2 2-3 JS3 1-2 1-2 2-3 JS4 1-2 1-2 2-3 71 72 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper HBYEN MONO ECMOS FLASH CLPSWD CPU 150MHz 180MHz 200MHz Position 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 JSS1 1-2 1-2 1-2 Function Auto SCSI High Byte Termination Always Colour display Mono Normal Clear CMOS Intel Flash BIOS (12v) SST Flash BIOS (5v) Normal Clear Password JSS2 1-2 1-2 1-2 JSS3 1-2 2-3 2-3 JSS4 2-3 1-2 1-2 JS3 1-2 1-2 2-3 JS4 1-2 1-2 2-3 JS5 1-2 1-2 2-3 JS6 1-2 1-2 2-3 P6NPI Dual Pentium Pro ATX Jumper JS8 JS9 JS10 CLCMOS CLPSWD MONO CPU 2x 2.5 3 (Default) 3.5 4 CPU 133MHz 150MHz 180MHz 200MHz Position 1-2 2-3 1-2 2-3 1-2 2-3 1-2 1-2 2-3 1-2 2-3 Function Auto SCSI High Byte Termination Always Normal ARO-1130 RAID Card installed Fast 8-bit SCSI Fast and Wide 16-bit SCSI Normal 2-3 Clear CMOS Normal Clear Password Colour display Mono JSS1 1-2 1-2 1-2 1-2 1-2 JS4 2-3 1-2 1-2 2-3 JSS2 1-2 1-2 1-2 1-2 2-3 JS5 2-3 1-2 1-2 2-3 JSS3 1-2 1-2 2-3 2-3 1-2 JS6 2-3 1-2 1-2 2-3 JSS4 1-2 2-3 1-2 2-3 1-2 JS7 2-3 1-2 1-2 2-3 P6BXI Switch S1-3 S4-7 Position All Off 4 On Off On Off On Off 5 On On Off Off On On 6 On On On On Off Off 7 On On On On On On Function CPU external clock - Reserved CPU multiplier 2x 2.5x 3x 3.5x 4x 4.5x A Alaris Leopard LX 486SLC2 Rev C Low cost version of Leopard SLC2/50 (no VESA slots or external cache, but faster). Made by IBM. Uses Opti 82C283 AT controller. Jumper JP6 Position 1-2 2-3 Function 128K cache 64K cache Alcom Group See Micron Design Technology Ltd www.alcom.com.tw ALi Acer Labs International 1429G Switch JP1-3 JP4 JP13-15 17,20,48 JP23,30 JP27-28 33,36 JP32 JP39 JP43 JP49 JP51 Position JP1 JP2 2-3 1-2 2-3 2-3 1-2 4-5 Open Open Open CPU Type 486DX/DX2 DX4/M7/486SX/M6 486 Overdrive P24T JP23 6-7 6-7,4-5 5-6 6-7,4-5,2-3 1-2,3-4 6-7,4-5,2-3 1-2,3-4 1-2,3-4,5-6 1-2,3-4 6-7,4-5,2-3 1-2,3-4,5-6 External Bus Speed 25 MHz 33 MHz 40 MHz 50 MHz 1,3 5,7 2,4,6,8 Close 1-2 2-3 2-3,3-5 1-3,2-4 Close Open JP3 1-2 2-3 4-5 Open JP30 Open 1-2 1-2 Function SMI CPU 486/DX4 AMD 486DXL Cyrix M6/M7 Any 5v CPU Cyrix CPU JP13 JP14 2-3 1-2 Open 1-2 1-2 1-2 1-2 2-3 SRAM (cache) 32K (8Kx8) 64K (16Kx8) 64K (8Kx8) 128K (32Kx8) 256K (64Kx8) 256K (32Kx8) 512K (128Kx8) JP27 JP28 2-3 1-2 2-3 1-2 2-3 1-2 2-3 2-3 2 Standby Mode output 2 Suspend Mode output GND Colour monitor 2-3 Mono 3.3v CPU 5v CPU Single density SIMMs Double Density AMD DX2-80 AMD DX4-100 JP15 2-3 1-2 2-3 2-3 JP17 Close Open Close Close JP33 1-2,5-6 1-2,3-4 5-6 1-2,5-6 JP36 1-2 1-2 1-2 2-3 JP20 1-2 1-2 1-2 2-3 JP48 1-2 1-2 1-2 1-2 73 74 The PC Engineer’s Reference Book – Vol 2: Motherboards J624 Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Description Notes Pentium 90 ALI AMI WinBIOS PCI P5-60/66 Item Chipset BIOS Bus Description ALI Notes 4 ISA/4 PCI 1 each shared ALR Advanced Logic Research – makes stuff for Gateway 7200 Switch JP22 Position 3-4 1-2,3-4 5-6 1-2, 5-6 3-4, 5-6 1-2, 3-4 5-6 1-2,5-6 Function 200 MHz 233 MHz 266 MHz 300 MHz 333 MHz 350 MHz 400 MHz 450 MHz Position 5-6 1-2, 5-6 3-4, 5-6 1-2, 3-4 3-4,5-6 5-6 Function 266 MHz 300 MHz 333 MHz 350 MHz 366 MHz 400 MHz 8200 Switch JP22 FlexCache 33/386 Switch S1 S2 S3 S4 S5 S6 S7 S8 JP2,3,4 Position On Off* Off* On Off* On Off* On Off* On Off* On Off* Memory Function Cache disabled Cache enabled Monochrome CGA RAM/ROM swap enabled RAM/ROM swap disabled 80387-33 or 3167 installed 80387-25 installed Memory upper limit is 15.875 Mb (FDFFFF) Memory upper limit is 15.5 Mb Reserved Floppy slowdown disabled Floppy slowdown enabled HD slowdown disabled Bank 0 Bank 1 JP2 JP3 JP4 A Switch JP7-10 Position 2 Mb 4 Mb 8 Mb 10 Mb 10 Mb 16 Mb Speed (ns) 120 100 80/85 60 120 100 80/85 60 Function 256K 256K 1 Mb 1 Mb 256K 1 Mb J7 Out Out In In Reserved J1,3,4 Out 256K 256K 1 Mb 1 Mb J8 Out Out In In In J9 Out Out In In Out In Out In Out In In J10 Out In Out In 75 Out Out In In Out In Bank 0 0 0 0 1 1 1 1 FlexCache 16/20-386 Jumper S1 S2 S3 S4 S5 S6,7 S8 Position Off* On On Off* On* Off S6 Off Off Off On S7 Off On Function Mono CGA Reserved Reserved 2 Mb Onboard 1 Mb Onboard Cache enabled Cache disabled Maths copro There Not there* High speed Low speed 386/220 Jumper S1 S2 S3 S4 S5 S6,7 S8 Position Off* On On Off* On* Off S6 On Off Off Off On S7 Off On Off Function Mono CGA Reserved Reserved 2 Mb 32-bit memory Onboard 1 Mb 32-bit memory Onboard Shadow RAM enabled Shadow RAM disabled Maths copro 80287 Not there* 80387 High speed Low speed Flexcache 25/386(dt) An intelligent board that automatically knows the memory configuration upon power-up. Standard versions of the desktop include 1 Mb in banks 0 and 1; the floor-mount has 4 Mb. Each bank supports eighteen 256 Kb by 1 DRAM chips and 1 Mb by 1 Mb chips, respectively. Additional memory requires the 32-bit FlexMem card which can provide up to 16 Mb. Another way to set the cache controller is through speed selection. When the speed is set low, the cache is OFF. When set high, the cache is ON, thereby activating the 0 wait state. 76 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper S1 S2 S3 S4 S5 S6,7 S8 Position Off* On On Off* On Off* On Off* On Off* Off* On Function Cache enabled Cache disabled (slow speed) CGA Mono Shadow RAM disabled Shadow RAM enabled 80387-20 80387-25 Reserved Factory setting Reserved Slow HD access time Fast HD access time Standard version Jumper S1,2,7,8 S3,4 S5-6 Position S1 On Off Off S3 On Off Off S5 Off On S2 Off On Off S4 Off On Off S6 Off On S7 Off On Off Function COM ports COM1 IRQ4 COM2 IIRQ3 None LPT IRQ 7 5 None Floppy Disabled Enabled S8 On Off Off Alton See PC Ware Amaquest Award BIOS ID The last two numbers of the BIOS part number. Code DA AC-00 Motherboard AP 8548 AP 8548 rev 2 Code BC-00 Motherboard AP 8548 American Megatrends See AMI American Predator www.americanpredator.com American Sunshine Technologies www.sunshinetech.com AMI American Megatrends - www.megatrends.com A Apollo Item Speeds (MHz) Chipset Bus Memory (Mb) Cache (K) I/O Description 75-133 Triton 4 PCI/4 ISA 128 Mb 512 2S, 1P, 1 Floppy Notes Description Pentium 166 430FX 4 PCI/3 ISA 128 Mb 512 2S, 1P, 1 Floppy Notes 1 each shared Apollo II Item CPU Speeds (MHz) Chipset Bus Memory (Mb) Cache (K) I/O 2nd generation None shared W/B or PB ATLAS PCI Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Problems Description Pentium 90/100 SiS Green AMI 4 PCI/4 ISA 128 512 2S, 1P, PS/2, EIDE Notes All PCI are Busmasters. PnP 1.0A compliant 72-pin SIMMs 256 standard Will not recognise S3-based cards (e.g. Stealth 64 Video VRAM unless special BIOS is installed. ATLAS PCI II Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Comments Description Notes 430HX Green AMI 4 PCI/4 ISA 256 512 2S, 1P, PS/2, EIDE All PCI are Busmasters 72-pin parity asynchronous, synchronous, or pipelined burst 2nd generation Atlas Excalibur PCI EISA Item CPU Speeds (MHz) Chipset Bus Memory (Mb) Cache (K) I/O Description Pentium 60 SiS 3 PCI/6 EISA 192 512 W/B 2S, 1P Notes None shared 256K standard 77 78 The PC Engineer’s Reference Book – Vol 2: Motherboards Excalibur PCI II Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Description Notes Pentium 60/66 Sis 4 PCI/4 ISA 128 512 W/B 2S, 1P 1 each shared 256K standard Goliath Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Description Notes 4 Pentium Pro 200 Orion AMI 6 PCI/4 EISA 1 Gb Main board takes 2, secondary board 2 more. 2 PCI buses, 3 slots per bus 8 slots. ECC. DIMMs 2S, 1P MegaPro Item Form Factor CPU Speeds (MHz) Chipset Bus Memory (Mb) Cache (K) I/O Description Notes 2 Pentium Pro 180/200 Natome 6 PCI/4 EISA 1 Gb 1 each shared. 2 PCI buses, 3 slots per bus. All busmaster FPM, EDO or BEDO. Parity/ECC 2S, 1P Merlin Item CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) I/O Description Pentium Pro 180/200 Natoma Notes 4 PCI/4 ISA 512 2 S, 1 P, 2 USB 1 each shared, 1 PCI only takes ½ length card. FPM, EDO or BEDO. Parity/ECC Super Voyager Item CPU Speeds (MHz) BIOS Bus Memory (Mb) Cache (K) I/O Comments Description 486 Notes Pentium Overdrive Green AMI Flash 3 PCI/4 ISA 128 256 2S, 1 P, Floppy WinBIOS PnP 1.0A compliant. PCI 2.0. Busmasters 72-pin SIMMs 128 standard A Titan II Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) Description Notes 2 Pentium 150 Neptune 4 PCI/6 EISA 512 512 W/B None shared, all busmasters 8 rows 256 standard Description Notes 2 Pentium 166 Triton II 200? 4 PCI/4 EISA 384 512 1 each shared, all busmasters 6 rows Pipelined Burst. 256 standard Titan III Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) Amjet See J-Mark Computer Corp AMP See Advance Micro Products Amptron www.amptron.com Award BIOS ID The last two numbers of the BIOS part number. Code 1-00 4C 9C Motherboard PM 7400 PM 7600 PM 8400 Code HC IC DX 6900 Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Description AT DX4/100 120 UMC AMI Win 3 VESA/7 EISA Notes 3 x 30, 2 x 72 Motherboard PM 7600 PM 7700B 79 80 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper JP3 JP6-8 JP16 JP17 JP21-24 35 JP27-30 32, 33 Position 1-2 2-3 JP6 Off On Off On Off On Off On JP24 2-3 1-2 1-2 JP27 1-2,2-3 1-2,2-3 1-2,3-4 2-3 JP31 JP 34 JP7 Off On On Off JP8 On On On Off JP25 2-3 1-2 1-2 JP28 2-3 2-3 1-2 1-2,4-5 1-2 1-2,3-4 5-6 2-3 JP26 2-3 1-2 1-2 JP29 JP35 Off On Off JP30 JP32 1-2 1-2,4-5 1-2 1-2,3-4 5-6 2-3 5-6 3-4,5-6 5-6 2-3,4-5 1-2 1-2 1-2 2-3 1-2 JP33 2-3 1-2.2-3 1-2,2-3 1-2,2-3 1-2.2-3 1-2,3-4 1-2 3-4 2-3 Off 1-2 2-3 Off On DX-9500 Eurone M919 v1, from the same source. DX-9700 Eurone M919 v3, from the same source. PM 7400 Same as PC Chips 529 PM 7600 Fugutech M 507 in disguise. Amtec www.antec-inc.com Anigma Used by Gateway 2000. Anscera Anson Antec www.antec-inc.com Function 5v Flash ROM 12v Flash ROM CPU Clock 25 MHz 33 MHz 40 MHz 50 MHz VESA <=33 MHz VESA > 33 MHz 0 VESA WS 1 VESA WS CPU Power 5v 3.3v 4v CPU 486SX 486DX/DX2 (Intel/AMD) 486DX2/DX4 P24D/enh AMD DX4, 5x86 P24T Cyrix M7 UMC U5 CPU 3x CPU 2.5x CPU 2x AMD DX4 3x AMD DX4 2x A AOpen AcerOpen - www.aopen.com www.aopen-usa.com www.aopenamerica.com Award BIOS ID The last two numbers of the BIOS part number. Code 9C-00 Motherboard AP5T Code AC Motherboard AP65 AP 4 Jumper JP1 JP2,3 JP4 JP30-32 JP37 Position 1-2 2-3 JP2 2-3 1-2 1-2 2-3 JP30 1-2 2-3 2-3 1-2 2-3 Cache Size 32 KB x 4 = 128K 32 KB x 8 = 256K 64 KB x 4 = 256K 64 KB x 8 = 512K 128 KB x 4 = 512K JP3 2-3 1-2 JP31 1-2 1-2 1-2 JP24 1-2 1-2 1-2 2-3 2-3 JP32 1-2 1-2 2-3 JP25 1-2 2-3 2-3 2-3 2-3 Function Enable FDC and Super I/O chip Disable ECP DMA Channel DMA 1 DMA 3 12v Flash ROM 5v EEPROM or Flash ROM OSC frequency 25 MHz 33 MHz 50 MHz Normal Clear CMOS JP26 2-3 2-3 1-2 2-3 2-3 JP27 1-2 2-3 1-2 2-3 1-2 5v CPU JP11 JP12 JP13 JP14 JP15 JP16 JP17 JP18 JP19 JP20 JP21 JP22 JP23 JP40 486SX SL 2-3 1-2 Open Open Open Open 3-4 2-3 Open Open 4-5 1-2 2-3 1-3, 2-4 JP11 JP12 JP13 JP14 486SX 2-3 Open Open Open DX/DX2 SL 2-3 1-2 Open Open Open Open 3-4 1-2, 3-4 Open 3-4 4-5 1-2 2-3 1-3, 2-4 486DX/DX2 2-3 Open Open Open P24D 1-2 1-2 Open 1-2 1-2 1-2 1-2, 3-4 1-2, 3-4 Open 3-4 4-5 2-3 2-3 1-3, 2-4 CxDX/DX2 2-3 1-2 Open Open P24T 1-2 1-2 1-2 Open Open 1-2 3-4 1-2, 3-4 1-2 2-3 1-2 Open 2-3 1-3, 2-4 JP29 1-2, 3-4 2-3, 4-5 1-2, 3-4 2-3, 4-5 1-2, 3-4 81 82 The PC Engineer’s Reference Book – Vol 2: Motherboards 486SX Open Open Open 2-3 Open Open Open Open Open 1-3, 2-4 JP15 JP16 JP17 JP18 JP19 JP20 JP21 JP22 JP23 JP40 486DX/DX2 Open Open Open 1-2, 3-4 Open 3-4 Open Open Open 1-3, 2-4 CxDX/DX2 Open 2-3 2-3 1-2, 3-4 2-3 3-4 2-3 Open 1-2 1-3, 2-4 3.45v CPU JP11 JP12 JP13 JP14 JP15 JP16 JP17 JP18 JP19 JP20 JP21 JP22 JP23 JP40 JP11 JP12 JP13 JP14 JP15 JP16 JP17 JP18 JP19 JP20 JP21 JP22 JP23 JP40 Intel DX4 (W/T) 2-3 1-2 Open Open Open Open 3-4 1-2, 3-4 Open 3-4 4-5 1-2 2-3 3-5, 4-6 Cyrix 486DX2 2-3 1-2 Open Open Open 2-3 2-3 1-2, 3-4 2-3 3-4 2-3 Open 1-2 3-5, 4-6 Intel DX4 (W/B) 1-2 1-2 Open 1-2 1-2 1-2 1-2, 3-4 1-2, 3-4 Open 3-4 4-5 2-3 2-3 3-5, 4-6 Cyrix DX4 (iDX4 P/O) 2-3 1-2 Open 1-2 1-2 1-2 1-2, 3-4 1-2, 3-4 Open 3-4 4-5 2-3 2-3 3-5, 4-6 AMD DX2 2-3 Open Open 2-3 Open Open Open 1-2, 3-4 Open 3-4 Open Open Open 3-5, 4-6 Cyrix DX4 (M7 P/O) 2-3 1-2 Open Open Open 2-3 2-3 1-2, 3-4 2-3 3-4 2-3 Open 1-2 3-5, 4-6 AMD DX4 (V8T) 2-3 Open Open Open Open Open Open 1-2, 3-4 Open 3-4 Open Open Open 3-5, 4-6 Cyrix 5X86 2-3 1-2 Open 1-2 1-2 1-2 1-2, 3-4 1-2, 3-4 Open 3-4 4-5 2-3 2-3 3-5, 4-6 AMD DX4-S (SV8B) 1-2 1-2 Open 1-2 1-2 1-2 1-2, 3-4 1-2, 3-4 Open 3-4 4-5 2-3 2-3 3-5, 4-6 TI 486DX2 2-3 1-2 Open Open Open 2-3 2-3 1-2, 3-4 2-3 3-4 2-3 Open 1-2 3-5, 4-6 AP 43 Jumper JP21 JP22,23 JP24 JP25-27 Position 1-2 2-3 JP22 2-3 1-2 1-2 2-3 JP25 2-3 2-3 JP23 2-3 1-2 JP26 1-2 1-2 JP27 1-2 2-3 Function Enable FDC and Suoer I/O chip Disable ECP DMA Channel DMA 1 DMA 3 5v EEPROM or Flash ROM 12v Flash ROM OSC frequency 25 MHz 33 MHz AMD DX4-S (SV8T) 2-3 1-2 Open Open Open Open 3-4 1-2, 3-4 Open 3-4 4-5 1-2 2-3 3-5, 4-6 A Jumper JP28 Position 1-2 1-2 2-3 1-2 Function 50 MHz Normal Clear CMOS 1-2 5v CPU JP6 JP7 JP8 JP9 JP10 JP13 JP14 JP15 JP16 JP17 JP18 JP19 JP20 JP29 486SX SL Open 2-3 Open Open 1-2 Open 2-3 2-3 Open 3-4 Open 1-2 4-5 2-3 DX/DX2 SL Open 2-3 Open Open 1-2 Open 2-3 1-2, 3-4 3-4 3-4 Open 1-2 4-5 2-3 P24D Open 1-2 1-2 1-2 1-2 Open 2-3 1-2, 3-4 3-4 1-2, 3-4 1-2 2-3 4-5 2-3 P24T 1-2 1-2 Open Open 1-2 1-2 2-3 1-2, 3-4 2-3 3-4 1-2 Open 1-2 2-3 Intel/AMD 486DX/DX2 Cyrix 486DX/ DX2 JP6 JP7 JP8 JP9 JP10 JP13 JP14 JP15 JP16 JP17 JP18 JP19 JP20 JP29 Intel/AMD 486SX Open 2-3 Open Open Open Open Open 2-3 Open Open Open Open Open 2-3 Open 2-3 Open Open Open Open Open 1-2, 3-4 3-4 Open Open Open Open 2-3 Open 2-3 Open Open 1-2 2-3 1-2 1-2, 3-4 3-4 2-3 2-3 Open 2-3 2-3 Intel DX4 (W/T) Open 2-3 Open Open 1-2 Open Open 2-3 1-2, 3-4 3-4 3-4 Open 1-2 4-5 1-2 Intel DX4 (W/B) Open 1-2 1-2 1-2 1-2 Open Open 2-3 1-2, 3-4 3-4 1-2, 3-4 1-2 2-3 4-5 1-2 3.45V CPU JP6 JP7 JP8 JP9 JP10 JP12 JP13 JP14 JP15 JP16 JP17 JP18 JP19 JP20 JP29 AMD DX2 Open 2-3 Open 2-3 Open Open Open Open 1-2, 3-4 3-4 Open Open Open Open 1-2 AMD DX4 (V8T) AMD DX4-S (SV8T) Open 2-3 Open Open Open Open Open Open 1-2, 3-4 3-4 Open Open Open Open 1-2 Open 2-3 Open Open 1-2 Open Open 2-3 1-2, 3-4 3-4 3-4 Open 1-2 4-5 1-2 AMD DX4-S (SV8B) Open 1-2 1-2 1-2 1-2 Open Open 2-3 1-2, 3-4 3-4 1-2, 3-4 1-2 2-3 4-5 1-2 83 84 The PC Engineer’s Reference Book – Vol 2: Motherboards JP6 JP7 JP8 JP9 JP10 JP12 JP13 JP14 JP15 JP16 JP17 JP18 JP19 JP20 JP29 TI DX2 Cyrix DX2/ DX4 (M7 /O) Open 2-3 Open Open 1-2 Open 2-3 1-2 1-2, 3-4 3-4 2-3 2-3 Open 2-3 1-2 Open 2-3 Open Open 1-2 Open 2-3 1-2 1-2, 3-4 3-4 2-3 2-3 Open 2-3 1-2 Cache Size 32 KB x 4 = 128 KB 32 KB x 8 = 256 KB 64 KB x 4 = 256 KB 64 KB x 8 = 512 KB 128 KB x 4 = 512 KB JP1 1-2, 3-4 2-3, 4-5 1-2, 3-4 2-3, 4-5 1-2, 3-4 Cyrix DX4 (iDX4 P/O) 5X86 Open 2-3 1-2 1-2 1-2 Open Open 2-3 1-2, 3-4 3-4 1-2, 3-4 1-2 2-3 4-5 1-2 JP2 1-2 2-3 1-2 2-3 1-2 JP3 2-3 2-3 1-2 2-3 2-3 TI DX4 AMD Am5x86 Open 2-3 Open Open 1-2 2-3 2-3 1-2 1-2, 3-4 3-4 2-3 2-3 Open 2-3 1-2 Open 1-2 1-2 1-2 1-2 1-2 Open 2-3 1-2, 3-4 3-4 1-2, 3-4 1-2 2-3 4-5 1-2 JP4 1-2 1-2 1-2 2-3 2-3 JP5 1-2 2-3 2-3 2-3 2-3 AP 53 Jumper JP3,13 JP11 JP12 Position JP3 1-2,3-4 Open 1-2 3-4 5-6 7-8 9-10 11-12 1-2 3-4 JP13 Open 1-2,3-4 Function CPU Type Single voltage CPU Dual voltage CPU 3.45v CPU core (default for P54C) 3.52v 2.5v 3.2v 2.8v 2.9v 3.43v CPU I/O voltage 3.52v AP 55CS Jumper JP1 JP3 JP4,6,7 JP8 JP11,12 JP13 JP14 JP18 Position 1-2 2-3 1-2,3-4,5-6 JP4 1-2 Open 1-2 2-3 1-2 1-2,3-4,5-6 1-2 2-3,5-6 1-2,5-6 2-3,4-5 JP6 1-2 2-3 JP7 2-3 3-4 Function Linear cache (Cyrix) Interleave cache (Intel) Reserved VGA Enable Disable Reserved ECP DMA 1 ECP DMA 3 Reserved Enable FDC and Super I/O chip 5v Flash ROM 12v Flash ROM EEPROM A Jumper JP19 Position 1-2 2-3 CPU Type P54C-75 P54C-90 P54C-100 P54C/CS/CQS-120 P54C/CS/CQS-133 P54CS/CQS-150 P54CS/CQS-166 Cyrix 6x86-P120+ Cyrix 6x86-P150+ Cyrix 6x86-P166+ Function Normal Clear CMOS JP9 2-3 2-3 1-2 2-3 1-2 2-3 1-2 2-3 2-3 1-2 JP10 2-3 1-2 2-3 1-2 2-3 1-2 2-3 2-3 1-2 2-3 JP22 2-3 2-3 2-3 1-2 1-2 1-2 1-2 Open Open Open JP23 2-3 2-3 2-3 2-3 2-3 1-2 1-2 Open Open Open AP 57 Jumper JP7 JP8 JP9-11 Position 1-2 3-4 5-6 7-8 9-10 11-12 1-2 3-4 JP9 Close Open JP10 Open Close JP11 Close Open JP2 1-2 1-2 2-3 2-3 1-2 2-3 2-3 1-2 JP5 2-3 2-3 2-3 1-2 2-3 1-2 JP3 1-2 1-2 1-2 1-2 2-3 2-3 2-3 2-3 JP6 1-2 2-3 1-2 1-2 2-3 2-3 Function 3.45v CPU core (default for P54C) 3.52v 2.5v 3.2v 2.8v 2.9v 3.43v CPU I/O voltage 3.52v CPU Type Single voltage CPU Dual voltage CPU AP 58 Jumper JP1-3 JP4-6 JP8 JP11 Position JP1 1-2 2-3 2-3 1-2 2-3 2-3 1-2 1-2 JP4 2-3 2-3 1-2 2-3 1-2 2-3 1-2 3-4 1-2 3-4 5-6 7-8 9-10 11-12 Function CPU Frequency Ratio 1.5 (3.5 for 233 MMX) 2 2.5 (1.75 for PR 166) 3 4 4.5 5 5.5 CPU External Clock 50 55 60 66 75 83.3 Internal test only Sync PCI Clk Async 3.45v CPU core (default for P54C) Single Voltage 3.52v Single Voltage 2.9v 2.8v 3.2v 2.2v 85 86 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper JP 14 Position 1-2 2-3 Function Normal Clear CMOS JP 18 1-2 2-3 Enable onboard Super I/O Disable AP 5C Jumper JP3,4 JP5 JP6 JP9-10 JP11 JP12 JP13 JP14,16 JP15 Position 1-2 2-3 1-2 2-3 Closed Open JP9 1-2 2-3 2-3 2-3 2-3 2-3 2-3 1-2,3-4 1-2 3-4 1-2 2-3 1-2 2-3 JP14 Off On 1-2 2-3 JP10 1-2,3-4 1-2,3-4 1-2,3-4 3-4,5-6 3-4,5-6 5-6,7-8 5-6,7-8 JP16 On Off Function ECP DMA Channel 3 ECP DMA Channel 1 Enable SMC 665GT Super I/O controller Disable Enable PS/2 mouse Disable CPU Type P54-75 P54C-90 P54C-100 P54C/CS/CQS-120 P54C/CS/CQS-133 P54CS/CQS-150 P54CS/CQS-166 50 MHz host clock 60 MHz host clock 66 MHz host clock 256K cache 512K cache 5v Flash ROM 12v Flash ROM SRAM 3.3V SRAM 3.3V/5V Mix Mode SRAM Normal Clear CMOS AP 5CP Jumper JP 1,2 JP 3 JP 4 JP 5,6,8 JP 7 Position JP1 1-2 2-3 1-2 2-3 Closed Open JP5 1-2 2-3 2-3 2-3 2-3 2-3 2-3 2-3 1-2 1-2 2-3 JP2 1-2 2-3 JP6 1-2,3-4 1-2 3-4 1-2 3-4 1-2 3-4 3-4 1-2,3-4 JP8 1-2,3-4 1-2,3-4 1-2,3-4 3-4,5-6 3-4.5-6 5-6,7-8 5-6,7-8 1-2,7-8 Open Function ECP DMA Channel DMA 3 DMA 1 Enable Super I/O controller Disable Enable PS/2 mouse Disable CPU Type 75 90 100 120 133 150 166 200 Cyrix 6x86 P120+ 256K cache 512K cache Resistors at R260, 261, 262, 263 allow 3.3/5v SRAMs. For 3.3v, A Jumper Position JP9 1-2 2-3 1-2 2-3 JP12 Function install zero-ohm resistors at R249, 253, 254, 255 5v Flash ROM 12v Flash ROM Normal Clear CMOS AP 5CS Jumper JP2 Position 1-2 2-3 1-2 JP5 1-2 2-3 1-2 2-3 JP10 1-2 1-2 2-3 1-2 2-3 2-3 JP14 1-2 1-2 2-3 JP13 1-2 2-3 2-3 JP 3 JP 5,6 JP 7 JP 10,11,17 JP 12 JP 14,16 JP13,15 JP 18,19 JP6 1-2 2-3 JP11 1-2 2-2 2-3 2-3 2-3 JP17 1-2 1-2 1-2 2-3 2-3 JP16 1-2 2-3 2-3 JP15 1-2 2-3 Function Clear CMOS Normal Reserved ECP DMA Channel DMA 3 DMA 1 Enable Super I/O controller Disable CPU Type 75 90 100 120 133 Reserved Cache 256K 512K 1 Mb Flash ROM Type Flash ROM EEPROM Reserved AP 5S Jumper JP1 JP6,7 JP5,13 JP8 JP10 JP12 JP16 JP18-20 Position 1-2 2-3 1-2 2-3 1-2, 3-4, 5-6 1-2 2-3 1-2 1-2 2-3 1-2 2-3 JP18 JP19 Closed Open Open Closed CPU Frequency 75 MHz 90 MHz 100 MHz JP3 2-3 2-3 1-2 JP4 2-3 1-2 2-3 JP20 Open Open JP14 2-3 2-3 2-3 Function Linear cache (Cyrix) Interleave cache (Intel) ECP DMA Channel 3 ECP DMA Channel 1 P54C CPU 12v Flash ROM 5v Flash ROM Enable PS/2 mouse Normal Clear CMOS Enable Super I/O controller Disable CPU voltage VRE Type STD Type JP15 2-3 2-3 2-3 87 88 The PC Engineer’s Reference Book – Vol 2: Motherboards CPU Frequency 120 MHz 133 MHz 150 MHz 166 MHz 200 MHz JP3 2-3 1-2 2-3 1-2 1-2 JP4 1-2 2-3 1-2 2-3 2-3 JP14 2-3 2-3 1-2 1-2 1-2 JP15 1-2 1-2 1-2 1-2 2-3 AP 5V Jumper JP 5,6 Position JP5 Closed Open 1-2 2-3 JP8 Open Closed JP10 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 JP 7 JP 8,9 JP 10,11 JP12 JP 13 JP 14 JP 15 JP 16 JP 17,18,20 JP 22,23 JP 24 CPU Frequency 75 MHz * 90 MHz 100 MHz 120 MHz 133 MHz 150 MHz 166 MHz 200 MHz JP6 Closed Open JP9 Open Closed JP11 1-2 2-3 JP1 1-2 1-2 1-2 1-2 1-2 2-3 2-3 2-3 JP2 1-2 1-2 1-2 2-3 2-3 2-3 2-3 1-2 Function CPU Type P54C P55C 3.45 CPU voltage 3.52 DIMM Type SDRAM EDO/FPM ECP DMA Channel DMA 3 DMA 1 Normal Clear CMOS Enable I/O controller Disable ISA Clk/3 ISA Clk/4 Enable PS/2 mouse Disable 12v Flash ROM 5v Flash ROM Reserved Reserved 8 MHz KB Clock 12 MHz KB Clock JP3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 1-2 JP4 1-2 1-2 2-3 1-2 2-3 1-2 2-3 2-3 AP 61 Pentium Pro Jumper JP 1,3 JP 2 JP 5,7 Position JP1 3-4,5-6,7-8 1-2,3-4,7-8 1-2,3-4,7-8 2-3 1-2 JP5 1-2 JP3 1-4,3-6 1-4,3-6 2-5 JP7 1-2 Function CPU Frequency 150 MHz 180 MHz 200 MHz Enable Enhanced IDE Enable Super I/O DMA Channel DMA 1 A Jumper JP 9 JP 10 JP11 JP 12 JP 13 Position 2-3 2-3 1-2 2-3 Open Closed Open Closed Open Closed 1-2, 3-4, 5-6, 7-8 3-4, 5-6, 7-8 1-2, 5-6, 7-8 5-6, 7-8 1-2, 3-4, 7-8 3-4, 7-8 1-2, 7-8 7-8 1-2, 3-4, 5-6 3-4, 5-6 1-2, 5-6 5-6 1-2, 3-4 3-4 1-2 Open Function DMA 2 5v Flash ROM 12v Flash ROM Enable PS/2 mouse Disable Normal Clear CMOS Standard CPU Overdrive 3.5v CPU 3.4 3.3 3.2 3.1 3 2.9 2.8 2.7 2.6 2.5 2.4 2.3 2.2 2.1 VIS (autodetect) AP 65-1 Pentium Pro Jumper JP3 JP5-6 JP7 JP14 JP18 JP20 Position 1-2 2-3 JP5 JP6 1-2 1-2 2-3 2-3 1-2,3-4,5-6,7-8 3-4,5-6,7-8 1-2,5-6,7-8 5-6,7-8 1-2,3-4,7-8 3-4,7-8 1-2,7-8 7-8 1-2,3-4,5-6 3-4,5-6 1-2,5-6 5-6 1-2,3-4 3-4 1-2 Open 1-2 2-3 1-2 2-3 2-3 1-2 Function 3x CPU clock 2.5x CPU clock External bus clock 66 MHz 60 MHz 3.5v 3.4v 3.3v 3.2v 3.1v 3v 2.9v 2.8v 2.7v 2.6v 2.5v 2.4v 2.3v 2.2v 2.1v Auto Normal Clear CMOS Enable Super I/O controller Disable Disable PS/2 mouse Enable 89 90 The PC Engineer’s Reference Book – Vol 2: Motherboards AP 65-2 Pentium Pro Jumper JP 1 JP 2 CN 13,14 JP 4,5 JP 6 JP 7 JP 8 CN 13 CN 15 Position Open Closed JP2 CN13 3-4,5-6,7-8 2-4,3-5 3-4,5-6,7-8 4-6,1-3 1-2,5-6,7-8 2-4,3-5 1-2,5-6,7-8 4-6,1-3 JP4 JP5 1-2 1-2 2-3 2-3 1-2 2-3 Open Closed 1-2, 3-4, 5-6, 7-8 3-4, 5-6, 7-8 1-2, 5-6, 7-8 5-6, 7-8 1-2, 3-4, 7-8 3-4, 7-8 1-2, 7-8 7-8 1-2, 3-4, 5-6 3-4, 5-6 1-2, 5-6 5-6 1-2, 3-4 3-4 1-2 Open 1-5 2-6 1-2 2-3 CN14 2-4,3-5 4-6,1-3 2-4,3-5 4-6,1-3 Function Normal Clear CMOS CPU Frequency 150 MHz 166 MHz 180 MHz 200 MHz ECP DMA Channel DMA 3 DMA 1 Enable Super I/O Disable Standard CPU Overdrive 3.5v CPU 3.4 3.3 3.2 3.1 3 2.9 2.8 2.7 2.6 2.5 2.4 2.3 2.2 2.1 VIS (autodetect) 115.2 Kbps (5v) IR module 4 Mbit (3.3v) 8 MHz KB Clock 12 MHz KB Clock AX3S Pro Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) I/O Description ATX Pentium III/Celeron 866 MHz/533 MHz Intel 815E Award Die-Hard 5 PCI 1 AMR 1 AGP 512 PS/2 Mouse and Keyboard, 4 USB, 2 serial, 1 parallel, 2 EIDE, floppy Notes Description ATX Pentium III/Celeron 933 MHz/700 MHz Apollo Pro 133A Notes Socket 370 66-166 FSB 3 DIMM sockets 2 EIDE controllers, UDMA/100 AX34 Pro Jumperless Item Form Factor CPU Speeds (MHz) Chipset Socket 370 66-150 FSB A Item BIOS Bus Sound Memory (Mb) I/O Description Award Die-Hard 4 PCI 1 AMR 1 AGP 1 ISA Yamaha YMF752-S 1.5 Gb PS/2 Mouse and Keyboard, 2 USB, 2 serial, 1 parallel, 2 EIDE, floppy AX 53 CPU Freq. 75 MHz P54C 90 MHz 100 MHz 120 MHz 133 MHz 150 MHz 166 MHz 200 MHz 150 MHz P55C 166 MHz 200 MHz 120+ 6x86 133+ 150+ PR75 K5 PR90 PR100 Jumper JP 1 JP 3 JP 6 JP 7 JP 9 JP 12 JP 14 JP 15 JP 16 JP2 1-2, 3-4 1-2, 3-4 1-2, 3-4 3-4, 5-6 3-4, 5-6* 5-6, 7-8 5-6, 7-8 1-2, 7-8 5-6, 7-8 5-6, 7-8 1-2, 7-8 Open Open Open 1-2 1-2 1-2 Position 1-2 3-4 1-2 3-4 5-6 7-8 9-10 11-12 1-2 3-4 1-2 3-4 1-2 2-3 1-2 3-4 Closed Open 1-2 3-4 1-2 2-3 JP3 3-4 3-4 3-4 3-4 3-4 3-4 3-4 3-4 7-8 7-8 7-8 1-2 1-2 1-2 3-4 3-4 3-4 JP4 1-2, 3-4, 5-6 1-2, 3-4, 5-6 1-2, 3-4, 5-6 1-2, 3-4, 5-6 1-2, 3-4, 5-6 1-2, 3-4, 5-6 1-2, 3-4, 5-6 1-2, 3-4, 5-6 Open Open Open 1-2, 3-4, 5-6 1-2, 3-4, 5-6 1-2, 3-4, 5-6 1-2, 3-4, 5-6 1-2, 3-4, 5-6 1-2, 3-4, 5-6 JP5 Open Open Open Open Open Open Open Open 1-2, 3-4 1-2, 3-4 1-2, 3-4 Open Open Open Open Open Open Function ATX power supply off On 3.52v Core CPU Voltage 3.43 2.9 2.8 2.7 2.5 3.52 I/O voltage 3.45 256 K cache 512 K cache Normal Clear CMOS Enable Super I/O controller Disable Enable PS/2 mouse Disable Keyboard clock ISA 12 MHz Cache module without tag With tag JP8 1-2, 3-4 1-2 3-4 1-2 3-4* 1-2 3-4 3-4 1-2 3-4 3-4 1-2, 3-4 Open 1-2 1-2, 3-4 1-2 3-4 Notes 3 DIMM sockets 2 EIDE controllers, UDMA/100 91 92 The PC Engineer’s Reference Book – Vol 2: Motherboards AX59 Pro Item Form Factor CPU Cache Chipset BIOS Bus Memory (Mb) I/O Video Description ATX Pentium/K6 1 Mb Via MVP3 Award 4 PCI/2 ISA 768 Mb 2 EIDE, floppy Notes Super Socket 7 UDMA/33 3 DIMM sockets – 2 SIMM AGP AX 5T Jumper JP 1,2,3 JP 4,5,6 JP 9,10 JP 11 JP 14 Position JP1 1-2 2-3 2-3 1-2 JP4 1-2 2-3 2-3 1-2 JP9 1-2,3-4 Open 1-2 3-4 5-6 7-8 9-10 11-12 1-2 2-3 JP2 1-2 1-2 1-2 2-3 JP5 2-3 2-3 1-2 1-2 JP10 Open 1-2,3-4 JP3 1-2 1-2 1-2 1-2 JP6 1-2 1-2 1-2 2-3 Function CPU Frequency Ratio 1.5 (3.5 PMT 233) 2 2.5 (1.75 PR 166) 3 CPU External Clock 60 MHz 66 75 83.3 (internal test only) SC652B does not support 83.3 CPU Type Single Voltage Dual Voltage 3.45v Core CPU Voltage 3.52 2.9 2.8 3.2 2.5 Normal Clear CMOS AX 65 Pentium Pro Jumper JP1 Position 1-2,3-4,5-6,7-8 3-4,5-6,7-8 1-2,5-6,7-8 5-6,7-8 1-2,3-4,7-8 3-4,7-8 1-2,7-8 7-8 1-2,3-4,5-6 3-4,5-6 1-2,5-6 5-6 1-2,3-4 3-4 1-2 Open Function 3.5v 3.4v 3.3v 3.2v 3.1v 3v 2.9v 2.8v 2.7v 2.6v 2.5v 2.4v 2.3v 2.2v 2.1v Auto A Jumper JP3-4 Position JP3 3-4 1-2 3-4 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 JP11 1-2 2-3 2-3 1-4 JP6 JP7 JP8 JP10 JP11,12 JP14 JP4 3-4,5-6,7-8 3-4,5-6,7-8 1-2,3-4,7-8 1-2,3-4,7-8 Function CPU Frequency 150 MHz 166 MHz 180 MHz 200 MHz Enable Super I/O controller Disable Keyboard clock as ISA clock 12 MHz Disable PS/2 mouse Enable Normal Clear CMOS Flash ROM boot block programming Enable Reserved Toggle type power switch Momentary type JP5 3-4 1-2 3-4 1-2 JP12 1-2 2-3 AX 63 Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) I/O Video Description ATX Pentium II/Celeron 500 VIA Apollo Pro Plus Award 4.51PGM 5 PCI/2 ISA 768 Mb PS/2 Mouse and Keyboard, 2 USB, 2 serial, 1 parallel, 2 EIDE, floppy Notes Slot 1 3 DIMM sockets UDMA/66 AGP AX63 Pro Item Form Factor CPU Speeds Chipset BIOS Bus Memory (Mb) I/O Video Description ATX Pentium III Via Apollo Pro 133 Award 5 PCI 768 Mb 2 EIDE, floppy, ser, par etc Notes Slot 1 133 FSB UDMA/33 3 RIMM sockets AGP 2x AX 6B(C)(Pro) Pentium II – Jumperless, except for: Jumper JP14 JP23 Item Form Factor Position 1-2 2-3 1-2 2-3 Function Normal Clear CMOS Auto AGP Turbo Enabled Description ATX Notes 93 94 The PC Engineer’s Reference Book – Vol 2: Motherboards Item CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) I/O Video Performance Description Pentium II/Celeron 500 440BX Award 4.51PGM 5 PCI/2 ISA 768 Mb PS/2 Mouse and Keyboard, 2 USB, 2 serial, 1 parallel, 2 EIDE, floppy Notes Slot 1 8x CPU clock multiplier 3 DIMM sockets AGP Good – better than Gigabyte GA-6BXF AX6BC Pro Gold Item Form Factor CPU Cache Chipset BIOS Bus Memory (Mb) I/O Video Description ATX Pentium III Notes Slot 1 440BX Award 5 PCI/2 ISA 768 Mb 2 EIDE, floppy, ser, par etc UDMA/33 3 DIMM sockets AGP AX 6C Item Form Factor CPU Chipset BIOS Bus Memory (Mb) I/O Video Description ATX Pentium II/Celeron Intel 820 Award 4.51PGM 5 PCI 768 Mb PS/2 Mouse and Keyboard, 2 USB, 2 serial, 1 parallel, 2 EIDE, floppy AX 6F Pentium II Jumper JP1-2 JP5,6 JP14 Position JP1 2-3 1-2 1-2 1-2 1-2 2-3 2-3 2-3 2-3 1-2 1-2 1-2 1-2 2-3 JP5 1-2 2-3 1-2 2-3 JP2 1-2 1-2 1-2 2-3 2-3 1-2 1-2 2-3 2-3 1-2 1-2 2-3 2-3 1-2 JP6 1-2 2-3 JP3 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 Function Clock Multiplier 1.5x 2x 2.5x 3x 3.5x 4x 4.5x 5x 5.5x 6x 6.5x 7x 7.5x 8x CPU External clock 66 MHz 60 MHz Normal Clear CMOS Notes Slot 1 3 RIMM sockets (RDRAM) UDMA/66 AGP 4x A AX 6L(C)(Lite) As for AX 6B(C), except no JP23 DP 5 Dual Pentium Selection Single processor Dual processor Jumper JP 1 JP 2,3 JP 4 JP 5 JP 6 JP 7 JP 8 JP 9-12 JP 13 JP14 JP 16,23 JP 22 JP 24,26 JP 25 JP17 Open Closed Position 1-2 2-3 JP2 1-2 2-3 Open Closed Open Closed 1-2 2-3 1-2 2-3 Open JP9 2-3 1-2 1-3,2-4 1-2,3-4 Open Closed JP16 Open 1-3 1-3 Open Closed JP24 1-2 2-3 1-2 JP18 Open Closed JP19 2-3 1-2 JP20 2-3 2-3 JP3 1-2 2-3 JP10 2-3 1-2 JP23 1-2 1-2 1-2 JP26 2-3 2-3 JP11 Open Closed JP12 Open Closed JP21 1-2 1-2 Function 5v Flash ROM 12v Flash ROM ECP DMA Channel DMA 1 DMA 3 Enable SCSI Termination Disable Enable PS/2 mouse Disable Enable Super I/O Disable Enable Enhanced IDE Disable Reserved SCSI Device Size 8-bit 16-bit Enable L2 parity Disable Normal Clear CMOS CPU Type/Speed P54C 75 90 100 L1 write-back L1 write through Cache size 256K 512K Reserved MX3W Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) I/O Description Micro-ATX Celeron Intel 810 Award 3 PCI 1 AMR 512 Mb PS/2 Mouse and Keyboard, 2 USB, 2 serial, 1 parallel, 2 EIDE, floppy, joystick, audio Notes Socket 370 100 FSB 2 DIMM sockets 95 96 The PC Engineer’s Reference Book – Vol 2: Motherboards P5M Jumper JP1,2 JP3,4 JP 7 JP 8 JP 9-12 JP 14 JP 18 JP 20 JP 25 Position JP1 1-2 2-3 2-3 1-2 JP3 2-3 1-2 2-3 1-2 3-4 5-6 7-8 9-10 11-12 1-2 3-4 JP9 1-2,3-4 Open 1-2 2-3 1-2 2-3 1-2 2-3 Open 1-2,3-4 JP2 1-2 1-2 2-3 2-3 JP4 2-3 2-3 1-2 JP10 Open 1-2,3-4 JP11 1-2,3-4 Open JP12 Open 1-2,3-4 Function CPU Frequency Ratio 1.5 (3.5 for 233 MMX) 2 2.5 (1.75 for PR 166) 3 CPU External Clock 50 60 66 3.45v CPU core (default for P54C) Single Voltage 3.52v Single Voltage 2.9v 2.8v 3.2v 2.1v I/O voltage 3.45 3.52 CPU Type Single Voltage Dual Voltage Normal Clear CMOS Enable onboard Super I/O Disable Enable PS/2 mouse Disable SDRAM EDO Appro www.appro.com Apricot Xen-I 386 Jumper J1 J3 J4 J5 J6 J7 S1 S2 S3 S5,6 Position In Out* In Out* In Out* In Out* ST 506 interface ST 506 interface On* Off On* Off On* Off Memory Function 256K ROM 512K ROM Disable reset Enable reset Non-latched mode Latched mode Disabled ROM Enabled ROM Not used Step rate selected Enable parallel port Disable parallel port Enable serial port Disable serial port Colour display Mono display 5 6 PAL Type A Jumper Position 1 Mb 2 Mb 4 Mb 5 Mb 8 Mb 256K 256K 1 Mb 1 Mb/256K 1 Mb S7,8 Function Off On On Off Off On On Off Off Off Reserved – do not use Xen-S Jumper SW1,2 SW3,5,6 SW4 SW7 SW8 SW9-S1 SW9-S2 SW9-S3 SW9-S4 SW9-S5 SW9-S6 SW9-S7 SW9-S8 SW10 Position Processor 80386sx 80286 Monitor Enable colour Disable colour On Off On Off On Off On Off On Off On Off On Off On Off On Off On Off Function SW1 SW2 On Off Off On SW3 SW5 SW6 On On On Off Off Off 12.5 MHz 16 MHz Processor 20 MHz override Corpocessor speed select Enable password Disable password Enable COM1 Disable COM1 Enable floppy Disable floppy Enable HD controller Disable HD controller Enable COM2 Disable COM2 Enable Ethernet Disable Ethernet Enable LPT1 Disable LPT1 Enable colour Disable colour Enable thick Ethernet cable Disable thick Ethernet cable Aprocom www.aprocom.com Award BIOS ID The last two numbers of the BIOS part number. Code AC Nex586v Fordlian 5IVXA Motherboard Nex586v Code Motherboard LEP8047VA LEP8047VA L4M047VA L4M047VA L4M047VA 97 98 The PC Engineer’s Reference Book – Vol 2: Motherboards Arche Parade 88 Jumper JP15 JP11 JP16 JP10 JP12 Position Out In In Out 1-2 2-3 In Out 1-2 2-3 Function Parallel port=LPT1 Parallel port=LPT2 Enable game port Disable game port Enable floppy Disable floppy Composite signal monitors Colour/multiscan monitors Clock 1 enable Clock 2 disable Rival 386 Jumper JP1,2 JP3 JP4(P4) JP5 Position CoProcessor There Not there* In Out 1-2* 2-3 In* Out Function JP1 JP2 Out In In Out Colour display Mono display Power Good from Power Supply Power Good generated on board Onboard rechargeable battery External battery on J4 Parade 286 ATM 1260V Jumper J1 J9,15,17 J18,21 J19,20 J22 J8 J16 J10,11 Position Out In Parallel Port LPT1 enabled LPT2 enabled LPT1 disabled LPT2 disabled Serial Port 1&3 COM1 enabled COM3 enabled COM1 disabled COM3 disabled Serial Port 2&4 COM2 enabled COM4 enabled COM2 disabled COM4 disabled In Out In Out In Out Display Enable Mono Disable Mono Function Other BIOS 27128 x 2 (U28L/U27H) DTK BIOS or other 27256 x 2 (U28L/U27H) J15 J17 J9 In In 1-2 Out Out 2-3 Out In In Out J18 J21 In In Out Out Out In In Out J18 J21 In In Out Out Out In In Out Colour display Mono display 1 wait state 0 wait state Enable floppy Disable floppy J10 J11 In In Out Out A Parade 286 Plus AMA1240V3 Jumper S3 S4 S6-8 JP7,9 JP12 JP13 JP14 JP15 JP16 JP17 JP18 JP19 J20 J23-25 Position On Off On Off Memory Size 512K 640K 640+384K 640+384K (24 EMS) 640+1408K 640+1408K (88 EMS) 640+3456K 640+3456K (216 EMS) Clock speed External Low speed High speed 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 HD Status Enabled Disabled Function Parity check enabled Parity check disabled EMS port address 0E8-0EFH EMS port address 098-09FH S6 S7 S8 On On On On On Off On Off On On Off Off Off On On Off On Off Off Off On Off Off Off JP7 JP9 In 1-2 Out Out IRQ7 IRQ5 IRQ4 IRQ5 IRQ3 IRQ5 COM1 address 3E8-3EF COM1 address 3F8-3FF COM2 address 2E8-2EF COM2 address 2F8-2FF LPT1 address 378-37F LPT1 address 278-27F Floppy address 3F0-3F7 Floppy address 370-377 2-speed drive Fixed speed drive Enable floppy Disable floppy J23 J24 J25 1-2 1-2 1-2 2-3 2-3 2-3 AMA232C-16S Jumper JP1 JP3 JP4 JP5 JP6 JP7 Position 1-2* 2-3 1-2* 2-3 1-2* 2-3 1-2* 2-3 1-2* 2-3 In* Out Function Normal ops Clear CMOS Enable floppy Disable floppy Enable COM2 Disable COM2 Enable parallel port Disable parallel port Enable COM1 Disable COM1 Enable Onboard HD Disable Onboard HD Bank0 512K 512K 512K 512K 2Mb 2Mb 2Mb 2Mb Bank1 None 512K 512K None None 2Mb 2Mb 99 100 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper JP11 Position 1-2 2-3 1-2 2-3 In Out Display type Enable VGA Disable VGA 1-2 2-3 1-2 2-3 JP13 JP14 JP15,16 JP17 JP23 Function 1 VGA BIOS 2 VGA BIOS Non-interlaced monitor Interlaced monitor Enable IRQ9 Disable IRQ9 JP15 JP16 In In Out Out 256K BIOS 128K BIOS 1 VGA BIOS 2 VGA BIOS KMA232F-12S Jumper S1-1 S1-2 Position On* Off On Off On Off* On Out In LPT address 378 278 1-2 2-3 1-2* 2-3 Out* In In* Out 1-2 2-3 DRAM size S1-3 S1-4 JP1 JP3,J3 JP4 JP3 JP6 JP7 JP8-13 JP14-16 JP18 JP17 1-2 2-3 All in Function Reserved – do not change 48-49KHz horizOntal scan (non-interlaced) Lower scan rates (interlaced) Fast address decode Slow address decode 16-bit data path (VGA) 8-bit data path (VGA) Disable HD Enable HD J3 JP2 LPT1 2-3 LPT2 278 Enable COM2 Disable COM2 Enable floppy Disable floppy Normal ops Allows use of network cards without IRQ9 conflict Enable CGA Enable Mono SIMMs DIP DRAM Base Ext Shad JP14 512 In 640 384 In 640 In 640 256 128 In 640 1408 Out 640 1280 128 Out 640 3328 128 Out 2 DRAM 4 DRAM 3-4 2-4 1-2 Maths copro 12 MHz Maths copro 8 MHz Maths copro 4 MHz Parade 386sx AMA1600V Jumper JP1 Position In* Function CGA JP15 In In Out Out In In Out JP16 In Out In Out In Out Out A Jumper JP3 JP6 JP11 JP19 Position Out In* Out 1-2 2-3* In* Out In* Out Function Mono Enable HD Disable HD Enable floppy Disable floppy Pipeline operation Non-pipeline Floppy IRQ enabled Floppy IRQ disabled Parade 386sx KMA932C-16S Jumper JP2,17 JP16 JP18 JP19 JP20 SW1-S1 SW1-S2 SW1-S3 SW1-S4 Position Floppy Enable Disable In* Out In* Out In* Out In* On Off On Off On Off* Function JP2 JP17 In Out Out In Primary display VGA Primary display Mono Enable 1st serial port Enable 1st serial port Enable 2nd serial port Enable 2nd serial port Enable HD Multifrequency display timing Standard frequency timing PS/2 style - all VGA modes AT style – colour modes on colour monitors, Mono on Mono Reserved 16-bit video memory path – autosense 16-bit BIOS 8-bit video memory path and BIOS Rival 386sx AMA2000 Jumper JP1 JP2 JP4 Position In Out 1-2 2-3* In* Out Function Mono display Colour display Clear CMOS Normal ops Pipeline operation Non-pipeline Rival 386-20 PAT386+ Jumper JP1 JP2 JP4 JP5 Position In* Out In* Out 1-2* 2-3 1-2 2-3 Function Onboard battery External battery on J2 Colour display Mono display Power good generated on board Power good from power supply CPU Clock (SCLK) Oscillator 3 101 102 The PC Engineer’s Reference Book – Vol 2: Motherboards JP6,7 J4 Maths copro Not there There 1-2* 3-4 JP6 JP7 In* Out Out In Turbo mode Deturbo (emulate 10MHz AT) Rival 386-25C KMA300G-25 Jumper JP3 Position 1-2 2-3* In* Out 1-2* 2-3 1-2* 2-3 1-2* 2-3 1-2* 2-3 JP4 JP5 JP6 JP7 JP8 JP10 JP12,13,20 Cache 32K 64K In* Out JP18 Function Clear CMOS Normal ops Pipeline Non-pipeline Enable CPU NMI pin Disable CPU NMI pin Enable CPU hold (Bus hold request) pin Disable CPU hold (Bus hold request) pin Enable CPU INIR Disable CPU INIR ATCLK from ICLK/2 ATCLK from 14.318 MHz OSC/2 Reserved JP12 JP13 JP20 Out 1-2 1-2 In 2-3 2-3 Colour display Mono display Rival 386-25 AMA2530 Jumper W1 W19 JP1 W21 SW1-1 SW1-2 SW1-3 SW1-4,5 SW1-6 SW1-7 Position 1-2 2-3* In* Out In Out* 1-2 2-3* On On Off On Off On Off SW1-8 Arima Aristo www.aristo-world.com Function 128K EPROM 256K EPROM 8 MHz bus speed 12.5 MHz bus speed 256K SIMM DRAM 1Mb SIMM DRAM Cache mode Page mode Reserved Maths copro installed CKM=0, CLK divided internally by 3 by 80287 CKM=1, 1/3 duty cycle CLK connect to 80287 Reserved CGA Mono 80387 installed, if SW1-2 is On 80287 installed, if SW1-2 is On Reserved A Award BIOS ID The last two numbers of the BIOS part number. Code 9C-00 EC Motherboard AM 430TX AM 430TX+ Code EC-00 GC Motherboard AM 439VX AM 430TX+ AM 430TX Vtech/PC Partner MB 540N/Yellow Dragon TX AM 439VX VTech/PC Partner MB 520NH Arstoria Award BIOS ID The last two numbers of the BIOS part number. Code CC Motherboard AS 496 Code Motherboard Arvida See also Seanix www.arvida.ca www.seanix.com ASI Aquarius Systems Inc Award BIOS ID The last two numbers of the BIOS part number. Code 0 0-30 1 1 Motherboard MB 4D33/50NR-02 MB 4D33/50NR-02 MB 5DVP/54VP v2.1 MB 4DUPM/E v3.0 Code 1-00 2 9C-00 KC-00 ASK Technology www.asiansources.com/asktech.co Aspen Systems www.aspsys.com AST Advantage! 4/33s Jumper E1 Position 1-2* Function Parallel port IRQ7 Motherboard MB 4DUVC MB 54VP v2.1 MB 4DSP 1.1 MB 4DUPC 103 104 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper E2 E3 E4 E5 E6-10 E14 Position 2-3 On Off On* On Off* On Off* CPU 80486SX (PQFP) 80486SX (PGA) 80487SX/ODP 80486DX/DX2/ODPR Pentium Overdrive On* Function Parallel port IRQ5 25 MHz CPU external speed 33 MHz CPU external speed Enable VGA Primary display Mono Primary display colour Override password (borrow jumper at E1) Enable password E6 E7 E8 1-2 On 2-3 1-2 Off 1-2 1-2 On 2-3 1-2 On 1-2 2-3 On 2-3 Enable game port (501540 only) E9 1-2 2-3 1-2 2-3 1-2 E10 2-3 1-2 2-3 2-3 2-3 Cyrix DX2-SL On 1-2 Off Off Off 2-3 Off 2-3 Off Off Off On On 2-3 2-3 AMD DX2-SL On 1-2 Off Off Off 2-3 Off 1-2 On On On* Off Off 2-3 2-3 Advantage! 4/50(s)(d) As for Advantage! 4/33s Advantage! Adventure 4/33s As for Advantage! 4/33s Advantage! Adventure 4/50(s)(d) As for Advantage! 4/33s Advantage! 4050d As for 4066d. Advantage! 4066d Jumper 486SX 486DX 487SX 486SX 486DX2 486SL 1201 Off On On Off 1202 2-3 1-2 1-2 2-3 1203 Off Off Off On 1204 Off Off Off On 1205 Off Off Off Off 1206 Off 2-3 1-2 Off 1207 Off Off Off On 1208 Off Off Off 2-3 1209 Off Off Off Off 1210 Off Off Off Off 1211 Off Off Off Off 1212 Off Off Off Off 1213 Off Off Off Off 1301 1-2 1-2 1-2 1-2 1302 1-2 1-2 1-2 1-2 * on means that pins 1-2, 3-4 and 5-6 are covered by a jumper. Jumper 1171 1172 1173 25/50 MHz Off Off On 33/66 MHz On On On 486DX DX2/SL On 1-2 On On Off 2-3 On 2-3 Off Off Off Off Off 1-2 1-2 A Jumper 1214 1215 1216 1217 5v On Off 2-3 Off 3.3v Off On 2-3 On Advantage! 4075p Jumper 1020 1104 1152-4 1350 1351 1505 1506 1961 Total 2 4 4 8 8 16 16 20 32 32 36 40 48 64 64 80 128 Position 1152 On Off On Off* 2-3 Off* 2-3 1153 Off On Off 1154 Off Off On Off* On 1501 (Bk 0) 1 1 2 2 4 4 8 2 8 16 16 4 8 16 32 8 32 1502 (Bk 1) 1 1 2 2 4 4 8 2 8 16 16 4 8 16 32 8 32 Function Test – leave Off Test – leave Off CPU speed 50/75 MHz* 60/90 MHz 66/100 MHz Standard LPT ECP Standard LPT ECP See table Test – leave Off Normal boot Clear CMOS at boot 1503 (Bk 1) 1 2 4 8 8 8 16 16 16 32 32 1504 (Bk 1) 1 2 4 8 8 8 16 16 16 32 32 1505 Off 1-2 Off 2-3 Off 1-2 Off 2-3 2-3 Off 1-2 1-2 2-3 1-2 Off 2-3 2-3 Advantage! 6033s Jumper E1 E2 E3 E4 E5 E6-10 Position 1-2* 2-3 On Off On* On Off* On Off* CPU 80486SX (PQFP) Function Parallel port IRQ 7 Parallel port IRQ 5 CPU external speed 25 MHz CPU external speed 25 MHz Enable VGA Mono CGA Override password Allow password To override a password, borrow the jumper at E1 (don’t forget to replace it). E6 E7 E8 E9 E10 1-2 On 2-3 1-2 2-3 105 106 Jumper E14 The PC Engineer’s Reference Book – Vol 2: Motherboards Position 80486SX (PGA) 80487SX; ODP 80486DX; DX2; ODPR Pentium Overdrive On Off* E17 E18 Function 1-2 Off 1-2 1-2 On 2-3 1-2 On 1-2 2-3 On 2-3 Update BIOS at boot Normal boot Reserved – leave on 2-3 Microphone input – leave Off 2-3 1-2 2-3 1-2 1-2 2-3 2-3 2-3 Advantage! 6060p Jumper E1 E2,3,7 E4 E5 E6 E8 E9 E10 E11 E12 E13 Position 1-2 2-3* Bus Speed (MHz) 50 (P75) 60 (P90) 66 (P100) Function Future upgrades Pentium 75/90/100 E2 E3 Off On Off On On On On* Off On* Off On* Off On* Off On* Off Left set of figures apply if an IMI415 is at U7. Right set apply if an IMI470 is installed. Manufacturer test Manufacturer test Manufacturer test Manufacturer test Colour Mono Enable access to setup Disable access to setup Enable video Disable video Allow password Override Password Normal boot Force flash update at boot E7 On Off Off E2 Off Off On E3 On On On E7 Off On On Advantage! 6066d As for Advantage! 610/611 Advantage! 6075p As for Advantage! 6060p, except E14 (On=update BIOS at boot. Off=normal). Advantage! 610 Jumper E1 E2 E3 E4 E5 E6-10 Position Off* Off* On* Off On Off* On Off* CPU 80486SX 80487SX; ODP 80486DX; DX2; ODPR Pentium Overdrive Function Reserved Reserved Enable VGA Disable VGA Mono CGA Override password Allow password E6 E7 1-2 Off 1-2 On 1-2 On 2-3 On E8 Off** Off** Off** Off** E9 2-3 1-2 2-3 2-3 E10 1-2 2-3 2-3 2-3 A Jumper Position E14 On Off* Function ** E8 is reserved – always Off Socket set for 3.345v Update BIOS at boot Normal boot Reserved – leave on 2-3 Microphone input – leave Off E17 E18 To override a password or force a BIOS update, borrow the jumper from E7 (don’t forget to replace it). Advantage! 611 As for 610, except: CPU Cyrix 5x86 486DX4/100 OverDrive E6 1-2 1-2 1-2 E7 Off Off Off E9 2-3 2-3 1-2 E10 2-3 2-3 2-3 Advantage! 612 Jumper J4 K1 J5 J1-2 J5 K2 J6 A2 Advantage! 613e As for Advantage! 611 Advantage! 614 As for Advantage! 612 Advantage! 621 As for Advantage! 612 Advantage! 623/624 As for Advantage! 612 Position 1-2 2-3* 4-5* 5-6 CPU speed 75 90 100 120 133 150 166 1-2* 2-3 4-5* 5-6 1-2* 2-3 Function ISA bus 1/3 PCI clock speed ISA bus ¼ PCI clock speed Allow access to setup Deny access to setup PCI J1 J2 25 1-2,4-5 1-2,4-5 30 1-2,5-6 1-2,4-5 33 2-3,4-5 1-2,4-5 30 1-2,5-6 2-3,4-5 33 2-3,4-5 2-3,4-5 30 1-2,5-6 2-3,5-6 33 2-3,4-5 2-3,5-6 Normal boot Clear CMOS at boot Enable password Clear and disable password Standard CPU voltage (3.3v) VRE CPU voltage (3.6v) 107 108 The PC Engineer’s Reference Book – Vol 2: Motherboards Advantage! 625/626 As for Advantage! 612 Advantage! 628 As for Advantage! 612 Advantage! 7301 Jumper J1F1A J1F1B J1F1 J5G1 Position 1-2* 2-3 4-5* 5-6 1-2* 2-3 4-5 5-6 CPU 25 30 100 120 133 150 166 180 200 1-2,4-5* PCI 33 30 33 30 33 30 33 Function Normal boot Erase password Normal boot Reset CMOS at boot Allow access to CMOS setup Deny access Standard CPU voltage (3.3v) VRE CPU voltage (3.6v) J1F1C J1F1D 2-3,5-6 1-2,4-5 2-3,4-5 1-2,4-5 1-2,5-6 1-2,4-5 2-3,4-5 2-3,4-5 1-2,5-6 2-3,4-5 2-3,4-5 2-3,5-6 1-2,5-6 2-3,5-6 2-3,4-5 1-2,5-6 1-2,5-6 1-2,4-5 Manufacturer’s test 60 ns EDO RAM is installed at the factory. You can mix EDO and FPM but not within banks Advantage! 7302 As for 7301. Advantage! 7303 As for 7301, but with J9B1 for Flash BIOS recovery in position 2-3 (1-2 is default for normal boot). Advantage! 8066d Switch S1 S2 S3 S4 S5 S6 S7 S8 Position On Off* On* Off On* Off On Off* On* Off Function Force flash BIOS update at boot Normal boot Allow password Override password Primary display colour Primary display is Mono Deny access to setup Allow access Enable VGA Disable Reserved Reserved Reserved A Advantage! 8090p As for 6075p. Advantage! 810 As for 612. Advantage! 811 As for 612. Advantage! 812 As for 612. Advantage! 814 As for 612. Advantage! 816 As for 612. Advantage! 818 As for 612. Advantage! 821 As for 612. Advantage! 822 As for 612. Advantage! 823 As for 612. Advantage! 824 As for 612. Advantage! 826 As for 612. Advantage! 828 As for 612. Advantage! 9303 As for 7301, but with J9B1 for Flash BIOS recovery in position 2-3 (1-2 is default for normal boot). 109 110 The PC Engineer’s Reference Book – Vol 2: Motherboards Advantage! 9304 As for 7301. Advantage! 9306 As for 7301. Advantage! Adventure 8060p As for Advantage! 6060p except E4-E6 depend on the board version – look under the AST logo for a part number with an extension of either –3-1 or –302. For the former, E4-E6 should be Off. For the latter, E4 in means cache is installed. E4-E6 on means no external cache. Advantage! Adventure 8066d Jumper E1 E2 E3 E4 E5 E6 E7 E8 E9 E10 E11 E12 E13 E14 E15 E16 Switch S1 Position On Off 1-2 2-3 1-2 2-3 Function Overdrive L1 cache write through Overdrive L1 cache write back Disable PQFP CPU Enable Standard 486SX or DX Pentium Overdrive or w/b 486DX 1-2 2-3 On Off On Off see also E10 3x internal CPU speed (DX4) 2.5x 2x 256K L2 cache 64K L2 cache Reserved – leave on 1-2 25 MHz PCI bus speed 33 MHz PCI bus speed Clear CMOS at boot Normal boot 25 MHz host bus speed 33 MHz On Off 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 On Off Off 1-2 2-3 See also E7 Standard 486 PGA CPU (w/t cache) Enhanced 486 PGA CPU (w/b cache) Intel CPU Cyrix CPU Intel CPU Cyrix CPU Intel CPU Cyrix CPU Intel CPU Cyrix CPU Intel CPU Cyrix CPU 5v Intel/Cyrix CPU 3v Cyrix 3v Intel Off 1-2 2-3 On Off Position On Off* Function Force flash BIOS update at boot Normal boot A Switch S2 S3 S4 S5 Position On* Off On* Off On Off* On* Off S6 S7 S8 111 Function Allow password Override password Primary display colour Mono Deny access to setup Allow access Enable VGA Disable Reserved – leave On Reserved – leave On Reserved – leave On Advantage! Adventure 8075p As for Advantage! 6060p. Advantage! Adventure 8090p As for Advantage! 6060p except E4-E6 depend on the board version – look under the AST logo for a part number with an extension of either –3-1 or –302. For the former, E4-E6 should be Off. For the latter, E4 in means cache is installed. E4-E6 on means no external cache. Advantage! Adventure 8100p Jumper S1 S2 S3 S4 S5 S6 S7-8 Position On Off* On On Off* Off On 7 Off On Off On Off 8 Off Off On Off On Function Reserved – leave On Reserved – leave On Override password Allow password Clear CMOS Deny access to setup Allow access CPU speed external x 1.5 CPU speed external x 2 CPU external speed 75 MHz 90 MHz 100 MHz 120 MHz 133 MHz J5J1 should left on 1-3 and 5-7 and J9C1 on 2-3 for 100/133 MHz. Change J9C1 to 1-2 for 120 MHz (VRE). For a failed BIOS update, force a read of an update file from floppy by moving J5J1 to position 1-2. Advantage! Adventure 8120p As for Adventure 8100p. Advantage! Adventure 8133p As for Adventure 8100p. Advantage! EXP P/60 Jumpers are in 3-pin blocks, grouped in pairs, positioned front-rear looking from the front. 112 The PC Engineer’s Reference Book – Vol 2: Motherboards 230822-001 board Jumper J7A1 J13H3 J13H1 J12H1 Position Rear L Pair Front L Pair Rear R Pair Front R Pair Rear L Pair Front L Pair Rear R Pair Front R Pair Rear L Pair Front L Pair Rear R Pair Front R Pair Rear L Pair Front L Pair Rear R Pair Front R Pair Function Enable video Disable 60 MHz 66 MHz Primary display colour Primary display Mono Disable access to CMOS Enable access Clear CMOS at boot Disable Disable password Enable password Disable flash BIOS recovery Enable flash BIOS recovery Disable flash BIOS write protect Enable 230822-002 board Jumper J7A1 J12G5 J12G1 J12H1 Position Rear R Pair Front R Pair Rear L Pair Front L Pair Rear R Pair Front R Pair Rear L Pair Front L Pair Rear R Pair Front R Pair Rear L Pair Front L Pair Rear R Pair Front R Pair Function Inactive 60 MHz 66 MHz Primary display colour Primary display mono Disable access to CMOS Enable access Clear CMOS at boot Disable Disable password Enable password Disable flash BIOS recovery Enable flash BIOS recovery Disable flash BIOS write protect Enable Advantage! Plus 4/25 Jumper E1 E2 E3 E4 E5 E6,7,9,10 E8 E14 E16 Position Off Off On* Off On Off* On Off* CPU 80486SX 80486DX/DX2 Off On Off* Off Function Reserved Reserved Enable video Autosense add-in video Primary display Mono Primary display colour Override password (borrow jumper at E7) Enable Password E6 E7 E9 E10 1-2 Off 2-3 1-2 1-2 On 2-3 2-3 Upgrades are not supported Reserved Update BIOS at boot Normal ops Reserved Advantage! Plus 4/33 (Mylex) Jumper Position Function A Jumper JP1 JP8-10 JP7, 11-13 JP14-17 JP18 JP19 JP20 JP21 Position On* Off JP8 Off 2-3 1-2 2-3 1-2 JP7 Off On JP14 2-3 2-3 Off 1-2 2-3* 1-2* 2-3 Off 1-2 2-3* JP9 2-3 1-2 1-2 1-2 1-2 JP11 Off On JP15 2-3 1-2 JP10 Off On On On On JP12 Off Off JP16 1-2 1-2 Function Colour display Mono CPU Type 486SX 487SX DX, DX2 ODP ODPR Cache Size 64K/none 256K CPU Speed 25/50 MHz 33/66 MHz Reserved LPT IRQ5 LPT IRQ7 Enable I/O Disable External battery at JP22 Clear CMOS Internal battery JP13 Off On JP17 2-3 2-3 Advantage! Plus 4/33 (MT) Jumper S1 S2 S3 S4 S5 S6 S7 S8 E5 E6-8 E9-13 E14 E15 E16 E800 E801 Position On Off On Off* On Off* On* Off Off Off On Off* On Off* E6 1-2 2-3 E9 Off 1-2 2-3 1-2 2-3 1-2 1-2 1-2* 2-3 On Off E7 Off On E10 2-3 1-2 1-2 1-2 1-2 1-2 E8 Off On E11 1-2 2-3 1-2 2-3 1-2 2-3 E12 Off On On On On On E13 2-3 2-3 2-3 2-3 2-3 1-2 Function Disable video Reserved Force flash BIOS update at boot Normal boot Override password Enable password Primary display colour Mono Reserved Reserved Deny access to setup Allow access Clear CMOS at boot Normal boot Cache size 64K/none 256K CPU Type 486SX 487SX DX, DX2 Overdrive (ODP) Overdrive (ODPR) Pentium Overdrive Reserved LPT IRQ7 LPT IRQ5 CPU external speed 33 MHz CPU external speed 25 MHz Reserved – leave on 2-3 Reserved – leave on 1-2 113 114 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper E802 Position 1-2 2-3* Function Enable monitor power conservation Disable Reserved – leave on 1-2 Reserved – leave on 1-2 E803 E804 Advantage! Plus 4/50d As for Advantage Plus 4/25 Advantage! Plus 4/50d (Mylex) As for Advantage! Plus 4/33 (Mylex). Advantage! Plus 4/66d As for Advantage Plus 4/25 Advantage! Plus 4/66d (Mylex) As for Advantage! Plus 4/33 (Mylex). Advantage! Plus 4/66d (MT) As for Advantage! Plus 4/33 (MT). Advantage! Plus 5/100 Jumper JP1 JP3-5 BF0,BF1 JP8 JP9 JP14 Position On Off* CPU 50 66 50 60 66 60 166 1-2* 2-3 On Off On* Off Bus (MHz) 66 Function VGA IRQ enabled VGA IRQ disabled JP3 JP4 JP5 Off Off Off On Off On On Off Off On On Off On Off On On On Off On Off On Asynchronous L2 cache Synchronous Pipeline Burst L2 cache CPU VR voltage (3.3-3.4v) CPU VRE voltage (3.4v-3.6v) Allow password Override password BF0 1&2 1&2 2&3 2&3 2&3 2&3 2&3 BF1 Off Off Off (Cyrix M1) Off (Cyrix M1) Off On On Advantage! Plus 5/75 Jumper JP1,19 JP2 JP3-9 Position CPU Ext Speed (MHz) 20 25 33* On* Off CPU Type i486/Cyrix 5x86* Cyrix 486 Function JP1 JP19 1-2 3-4 1-2 5-6 Allow password Override and erase password JP3 JP4 JP5 Off On On On Off Off See also JP20-23 JP6 On Off JP7 Off Off JP8 On Off JP9 Off On A Jumper JP11 JP16 JP17 JP20-23 JP29 JP30 JP31 V1-V4 Position 1-2* 2-3 1-2* 2-3 1-2* CPU Type i486/Cyrix 5x86* Cyrix 486 Function DX CPU SX CPU 128K L2 cache 256K L2 cache Leave on pins 1-2 (L2 cache size) JP20 JP21 JP22 Off Off Off On Off On On* On* Off On* Off On Off* See also JP 3-9 Enable video Primary display colour Primary display Mono Normal boot Force flash update at boot 5v 3.45v JP23 Off Off Advantage! Plus EXP P/60 Jumper S1 S2 J17,25 J18 J19 J20 J28 J30,31 52-54 J38 J51 Position On* Off None 1-2 3-4 5-6 1-2* 2-3 1-2* 2-3 1-2* 2-3 1-2* 2-3 Cache size 256K 512K 1-2,5-6 3-4 Off* On Function Reserved – leave Off Colour adapter Mono No DMA channel for EPP Channel 0 Channel 1 Channel 2 LPT IRQ7 LPT IRQ5 COM1 IRQ4 COM1 IRQ3 COM2 IRQ3 COM2 IRQ4 Enable mouse Disable J30 J31 Off Off On On 60 MHz 66 MHz Write protect flash BIOS Allow update J52 1-2 2-3 J53 1-2 2-3 J54 1-2 2-3 Advantage! Pro 4/100t Jumper E1,6,20 Position Cache Write-through Write-back Function E1 1-2 2-3 E2 1-2* 2-3 CPU 80486SX (LIF socket) 80486 (PQFP) E1=VL Bus; E6=Pentium Overdrive; E20=Cyrix DX2 Parallel port IRQ7 Parallel port IRQ5 E3 E4 E5 E13 1-2 1-2 1-2 On 2-3 2-3 2-3 Off E3,4,5,13 E6 1-2 2-3 E20 Off On 115 116 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper E7 E8 E9 E10 E11 E12,14 E15 E16 E17,18,19 Position Pentium Overdrive All other (168/169 pin) Function 2-3 2-3 On* On* Off On* On* Off Off* Cache size 256K cache 64K or no cache On Off Off* CPU Brand Intel Cyrix DX2 boards support 5v only; DX4 boards support 3v only Enable VGA Primary display colour Primary display Mono Reserved – leave On Enable password Disable password Reserved – leave Off E12 E14 On On Off* Off* 25 MHz CPU external speed 33 MHz CPU external speed Reserved – leave Off E17 E18 E19 1-2 1-2 1-2 2-3 2-3 2-3 1-2 2-3 2-3 2-3 On On Advantage! Pro 4/25s Jumper E1,2,3 E4 E5 E6 E9,10 E12 E11,13-17 Position Cache size 256K cache 64K or no cache On* Off On* On* Off CPU speed 33 MHz 25 MHz 1-2* 2-3 CPU 80486SX (PQFP) 80486SX (LIF socket) 80486DX/DX2/ODPR ODP/80487SX Pentium Overdrive Advantage! Pro 4/33(s) As for Advantage! Pro 4/25s Advantage! Pro 4/50d As for Advantage! Pro 4/25s Advantage! Pro 4/66d As for Advantage! Pro 4/25s Function E1 E2 E3 On On On Off* Off* Off* Primary display colour Primary display Mono Enable VGA/autosense Enable password override (disable and erase) Disable password override (allow password) E9 E10 Off Off On On Parallel port IRQ7 Parallel port IRQ5 E11 E13 E14 E15 Off Off 1-2 1-2 On Off 1-2 1-2 On On 2-3 1-2 On On 1-2 1-2 On On 2-3 2-3 5v processors only E16 1-2 1-2 2-3 2-3 2-3 E17 1-2 1-2 1-2 1-2 Off A Advantage! Pro Adventure 4/25s As for Advantage! Pro 4/25s Advantage! Pro Adventure 4/33s As for Advantage! Pro 4/25s Advantage! Pro Adventure 4/50d As for Advantage! Pro 4/25s Bravo 286 Jumper E1 E2 SW2 SW3 Position Out* Out* Colour Mono 1-2 Function Reserved Reserved CGA, EGA or VGA installed Normal ops Bravo 286/386sx Jumper S1 S2 S3 S4 S5 S6 S7 S8 S9 S10 Position On* Off* On Off* Off* On* On* On* Off Off* On Off* Off* Function Enable VGA Set password override Inhibit password override Reserved Reserved Reserved Reserved PS/2 video AT video VGA or fixed frequency monitors Multi-frequency monitors Reserved Reserved Bravo 286/386sx Jumper E1 E2,3 S1 S2 S3 S4 S5 S6 S7 S8 S9 S10 Position Out In* On* Off* On Off* Off* On* On* On* Off Off* On Off* Off* Function Reserved Enable memory parity Reserved Enable VGA Set password override Inhibit password override Reserved Reserved Reserved Reserved PS/2 video AT video VGA or fixed frequency monitors Multi-frequency monitors Reserved Reserved 117 118 The PC Engineer’s Reference Book – Vol 2: Motherboards Bravo LC 4/33(s) As for Advantage! Pro 4/100t, except use SL enhanced for all 3x 168- or 169-pin 486, except SX. DX2 system boards support only 5v CPUs, DX4 support only 3v. The 94 Cyrix model supports only 3v SLenhanced CPUs. Bravo LC 4/50(s)(d) As for Bravo LC 4/33(s). Bravo LC 4/66d As for Bravo LC 4/33(s). Bravo LC 4/100t As for Bravo LC 4/33(s). Bravo LC 5100 As for Advantage! Plus 5/100. Bravo LC 5133 As for Advantage! Plus 5/100. Bravo LC 5166 As for Advantage! Plus 5/100. Bravo LC P/75 Jumper JP1,19 JP2 JP3-9 JP11 JP16 JP17 JP20-23 JP29 JP30 JP31 V1-4 Position JP1 JP19 1-2 1-2 1-2 3-4 1-2 5-6 On* Off CPU i486/Cyrix 586 Cyrix 486 1-2* 2-3 1-2* 2-3 1-2 CPU type i486/Cyrix 5x86* Cyrix 486 On* Off On* Off On* Off On Off* Function CPU speed 20 MHz 25 MHz 33 MHz* Allow password Override and erase JP3 JP4 JP5 Off On On On Off Off DX CPU SX CPU 128K cache 256K cache Leave on 1-2 (external cache size) JP20 JP21 JP22 Off Off Off On Off On Enable video Disable Primary display colour Primary display Mono Normal boot Force flash update at boot 5v CPU 3.45v CPU JP6 On Off JP23 Off Off JP7 Off Off JP8 On Off JP9 Off On A Bravo LC (LC2) 4/25s As for Advantage! Pro 4/25s Bravo LC (LC2) 4/33s As for Advantage! Pro 4/25s Bravo LC (LC2) 4/50d As for Advantage! Pro 4/25s Bravo LC (LC2) 4/66d As for Advantage! Pro 4/25s Bravo LC3/33s Jumper E1 E2 E3 SW1-S1 SW1-S2 SW1-S3 SW1-S4 Position 1-2* Out* In Out In* On* Off* On Off* Off* Function Reserved Clear CMOS Reserved Reserved LPT on IRQ7 Enable VGA Set password override Inhibit password override Reserved Reserved Bravo LC P/100 As for MS P/75. Bravo LP 4/25s As for Advantage! Plus 4/33 (MT) Bravo LP 4/33(s) As for Advantage! Plus 4/33 (MT) Bravo LP 4/50s As for Advantage! Plus 4/33 (MT) Bravo LP 4/66d As for Advantage! Plus 4/33 (MT) Bravo MS 4/33s As for Advantage! Adventure 8066d. Bravo MS 4/50s As for Bravo MS 4/33s. 119 120 The PC Engineer’s Reference Book – Vol 2: Motherboards Bravo MS 4/66d As for Bravo MS 4/33s. Bravo MS 4/100t As for Bravo MS 4/33s. Bravo MS 5100 (Vixen) Jumper J4G1 J4L1A J4L1B J4L1C,D J6C2 J6C2 Position 1-2,4-5* 2-3,5-6 1-2* 2-3 4-5* 5-6 1-2* 2-3 4-5* C 2-3,5-6 2-3,4-5 1-2,5-6 2-3,4-5 1-2,5-6 2-3,4-5 1-2,5-6 1-2* 1-2* 4-5 5-6 D 1-2,4-5 1-2,4-5 1-2,4-5 2-3,4-5 2-3,4-5 2-3,5-6 2-3,5-6 Function 2 PCI slots on riser 2 PCI slots on riser Normal boot Erase password Normal boot Reset CMOS at boot Allow access to CMOS Prevent access Factory setting CPU Bus speed 75 25 90 30 100 33 120 30 133 33 150 30 166 33 Factory setting Factory setting VRE (3.6v) Standard voltage (3.3v) Bravo MS 5133 As for Bravo MS 5100 (Vixen). Bravo MS 5166 As for Bravo MS 5100 (Vixen). Bravo MS P/60 As for Advantage!6060p. Bravo MS P/75 As for Advantage! 6060p Bravo MS P/75 (Eagle) Jumper E1 E2 E4 E5 Position On* Off On Off On* Off On* Function Onboard speaker External speaker VR voltage (3.3-3.4v) VRE voltage (3-4-3.6v) Normal boot Force flash update at boot Allow password A Jumper E7 E12 E13 E14 E15 E16 Position Off On* Off 1-2* 2-3 1-2* 2-3 E17 E19 Int CPU 60 75 80 90 100 100 120 133 150 166 Function Override password Enable access to setup Disable access to setup Reserved – leave Off Reserved – leave Off Reserved – leave Off Output to speaker Output to line Output to speaker Output to line Reserved – leave Off Reserved – leave Off Ext CPU 40 50 40 60 50 66 60 66 60 66 E3 2-2 2-3 1-2 2-3 1-2 2-3 1-2 1-2 1-2 1-2 E6 On On Off On Off On Off Off On On Bravo MS P/75 (Morrison) As for Advantage! 612. Bravo MS P/90 As for Advantage! 6060p. Bravo MS P/100 As for Advantage! 6060p. Bravo MS P/100 (Eagle) As for Bravo MS P/75 (Eagle). Bravo MS P/100 (Morrison) As for Advantage! 612. Bravo MS P/120 As for Bravo MS P/75 (Eagle). Bravo MS P/133 (Eagle) As for Bravo MS P/75 (Eagle). E8 On On On On On On On On Off Off E10 Off Off Off On Off On On On On On E11 On Off On Off Off On Off On Off On E18 Off Off Off Off Off Off Off Off On On E20 Off On Off On On On On On On On 121 122 The PC Engineer’s Reference Book – Vol 2: Motherboards Bravo MS P/133 (Morrison) As for Advantage! 612. Bravo MS P/166 (Morrison) As for Advantage! 612. Bravo MS-T 4/66 As for Bravo MS 4/33s Bravo MS-T P/75 As for Advantage! 6060p Bravo MS-T P/90 As for Advantage! 6060p Bravo MS-T P/100 As for Bravo MS P/75 (Eagle) Bravo MS-T P/133 (Eagle) As for Bravo MS-T P/75 (Eagle) Bravo MS-T P/133 (Morrison) As for Advantage! 612 Bravo MS-T 5100 (Vixen) As for Bravo MS 5100 (Vixen) Bravo MS-T 5133 (Vixen) As for Bravo MS 5100 (Vixen) Bravo MS-T 6150 Denali Jumper J29 J25A-D J25E J25F J25G Position On Off A Up Down Up Down Up Up* Down Up* Down Up* Down B Up Down Up Down Up C Up Down Down Up Up D Up Up Up Down Down Function CPU 3.1v Autodetect CPU speed 133 MHz 150 MHz 166 MHz 180 MHz 200 MHz Allow password Override password Normal boot Erase CMOS at boot Enable access to setup Disable A Jumper J25H J25I Position Up* Down Up Down Function BIOS write-protected Allow BIOS flash update 60 ns SIMMs 70 ns SIMMs Bravo MS-T P/166 As for Advantage! 612 Bravo MS-T 5166 (Vixen) As for Bravo MS 5100 (Vixen) Bravo MS-L 4/66d As for Bravo MS 4/33s Bravo MS-L P/75 As for Advantage! 6060p Bravo MS-L P/90 As for Advantage! 6060p Bravo MT 4/33(s) As for Advantage! Plus 4/33 (MT) Bravo MT 4/50(s) As for Advantage! Plus 4/33 (MT) Bravo MT 4/66d As for Advantage! Plus 4/33 (MT) Bravo MT P/60 As for Advantage! Plus EXP P/60 Cupid ISA Jumper E1 E2 E3 Position PWD* 1-2 Out* Out* Function Enable password Override password Reserved Reserved Cupid Clem ISA Jumper S1 S2 S3 Position Off* On Off* Off* Function Set password override Inhibit password override Reserved Reserved 123 124 Jumper S4 S5 The PC Engineer’s Reference Book – Vol 2: Motherboards Position Off* On On* Function Analogue or VGA display Multifrequency display Enable VGA Cupid EISA Jumper E1 E2 E3 E4 E5 E6 E7 Position In* In* Out* 1-2 2-3 Out* Out* 2-3* Function Reserved Reserved Reserved Disable password override Enable password override Enable VGA Reserved Reserved Cupid Tower ISA Jumper S1 S2 S3 S4 Position Off* Off* On Off* Off* Function Reserved Set password override Inhibit password override Reserved Boot without keyboard Cupid Tower EISA Jumper E1 E2 E3 E4 E5 E6 Position Out* 1-2 2-3* Out* In* In* Out* Function Reserved Inhibit password Set password Reserved Reserved Reserved Reserved Manhattan G560 As for Advantage! 6060p. Manhattan G590 As for Advantage! 6060p. Manhattan P5090 As for Manhattan S6200. Manhattan P5100 As for Manhattan S6200. Manhattan P5133 As for Manhattan S6200. A Manhattan S6200 SW2 on mainboard and SW1 on processor board are for reporting revision information to diagnostics. Switch S1 S2 S3 S4 S5 Position On Off* On Off* On Off* On Off* On Off* E1 Function Force BIOS update at boot Normal operation Override password Allow password Mono display Colour display Clear EISA CMOS at boot Normal boot Deny access to setup Allow access to setup Clear CMOS Manhattan V5090 As for Manhattan S6200. Manhattan V5100 As for Manhattan S6200. Power Premium Switch S1 S2 S3 S4 E1 E2 E3 E4 E5 Position Off* On Off On* Off* On Off On* In* 1-2* In* Out* Out* Function Clear CMOS memory Clear CMOS Allow password Inhibit password Flash BIOS update Force BIOS update Disable video Enable video Reserved Reserved Reserved Reserved Reserved Premium II ISA Switch S1 S2 S3 S4 S5 S6 S7 S8 Position On* Off* On Off* Off* On* On* On* Off Off* On Function Enable VGA Set password override Inhibit password override Reserved Reserved Reserved Reserved PS/2 video AT video VGA or fixed frequency monitors Multi-frequency monitors 125 126 The PC Engineer’s Reference Book – Vol 2: Motherboards Premium III 4/25s (LC2) As for Advantage! Pro 4/25s. Premium III 4/33(s) (LC2) As for Advantage! Pro 4/25s. Premium III 4/50d (King) As for Advantage! Pro 4/100t. Premium III 4/50d (LC2) As for Advantage! Pro 4/25s. Premium III 4/66d (King) As for Advantage! Pro 4/100t. Premium III 4/66d (LC2) As for Advantage! Pro 4/25s. Premium III+ P/75 As for Advantage! 6060p. Premium III+ P/100 As for Bravo MS P/75 (Eagle). Premium III+ P/133 As for Bravo MS P/75 (Eagle). Premium 286 Jumper E3 E4 E5 E6 E7 E8 E9 E10 E11 E12 Position In Out* In In Out* In Out* In Out* In Out* In Out* In Out* In Out* In Out* Function ROM BIOS 0 wait state Reserved Enable A15 for 27256 devices Reserved 27256 address F000-FFFF Reserved 27128 address F800-FFFF Reserved Latched PROM BIOS Latched PROM BIOS for optional ROMs Reserved 0 wait state for optional ROMs Reserved Enable A15 for 27256 devices Disable A15 for 27256 devices Reserved E000-EFFFh Reserved F000-F7FFh A Jumper E13 E14 E18 E20 E21 E24 E25 E31 E32 E27 E28 E29 E30 Position In Out* In Out* In Out* In* Out In Out* In* Out In* Out In Out* Out In* Out* In Out In* Out* In Function Reserved E800-EFFFh Reserved Latched PROM for optional devices Reserved Latched PROM for optional ROMs AT Bus 2 wait states at 10 MHz AT Bus 1 wait state at 10 MHz Reserved COM2 at 2F8h Reserved COM1 at 3F8h Reserved IRQ4 Reserved IRQ3 Reserved Reserved LPT1 at 378h Reserved LPT2 at 278h Reserved IRQ7 Reserved IRQ5 Premium 386/16 Jumper E1,15,16 E2 E3 E4 E5 E6 E7 E8 E9 E10-13 E14 E18,32 E20,2,31 E17 E33 Position Maths copro 5 MHz 8 MHz In Out* In Out* In Out* In Out* Out In* In Out* In Out* In Out* In Out* In Out* Out* In* Out In* In Function E1 E15 E16 In Out In Out In Out ROM BIOS 0 wait state Reserved Enable A15 for 27256 devices Disable A15 for 27256 devices Reserved 27256 address F000-FFFF Reserved 27128 address F800-FFFF Reserved Latched PROM BIOS Latched PROM BIOS for optional ROMs Reserved 0 wait state for optional ROMs Reserved Enable A15 for 27256 devices Disable A15 for 27256 devices Reserved Address select Reserved Latched PROM for optional ROMs Reserved Reserved Reserved AT Bus 2 wait states at 10 MHz Disable floppy 127 128 Jumper E40 E22 E23 E28 E29 E24 E25 E26 E27 The PC Engineer’s Reference Book – Vol 2: Motherboards Position Out* In* Out In Out* In* Out Out In* Out* In Out In* Out* In Out In* Out* In Function Enable floppy ALE sampled earlier than standard Reserved COM2 at 2F8h Reserved COM1 at 3F8h Reserved Reserved IRQ4 Reserved IRQ3 Reserved LPT1 at 378h Reserved LPT2 at 278h Reserved IRQ7 Reserved IRQ5 Premium 386/C Jumper E1 E2 E3 E4 E5 E6 Position In* In* In* Out* In* Out* Function Reserved Reserved Reserved Reserved Reserved Reserved Premium SE Jumper E1 E2 E3 E4 E5 E6 Position Out* 1-2 2-3* Out* In* In* In* Function Reserved Inhibit password Set password Reserved Reserved Reserved Reserved Premium Exec Jumper S1 JP1 Position Off* On Out* Function Set password override Inhibit password override Reserved Premium Workstation Jumper JP1-6 JP7 JP8 Position SIMM type 256K 1 Mb 1-2 2-3 Out* Function JP1 JP2 1-2* 1-2* 2-3 2-3 27128K EPROM 27256K EPROM Reserved JP3 1-2* 2-3 JP4 1-2* 2-3 JP5 1-2* 2-3 JP6 1-2* 2-3 A Premmia 4/33(s) Switch S1 S2 S3 S4 S5 S6 S7 S8 S9 S10 Jumper E1,4,6,7 E2 E3 E5 Position On* Off On Off* On Off* On Off* On* Off On* Off Position E1 2-3 1-2 2-3 1-2 1-2 Function Enable VGA Disable Reserved Erase EISA CMOS at boot Normal boot Force flash BIOS update at boot Normal boot Override password Allow password Reserved – leave Off Reserved – leave Off Reserved – leave Off Super I/O register address 398h Super I/O register address 26Eh Primary display colour Mono E4 1-2 Off 1-2 2-3 1-2 E6 1-2 2-3 1-2 1-2 1-2 On* Off 2-3 Premmia 4/50d As for Premmia 4/33(s). Premmia 4/66d As for Premmia 4/33(s). Premmia GX P/90 (IDE) As for Premmia GX P/90 (SCSI) except: Jumper E1,2 Position E1 Off Off Off On E2 On On Off On Function CPU speed 75 (50) 90 (60) 100 (50) 100 (66) Premmia GX P/90 (SCSI) Switch 1 2 Position On Off* On Function Force flash BIOS at boot Normal boot Override password E7 1-2 2-3 1-2 1-2 1-2 Function CPU 486SX (U12) 486SX (U13) 487SX, ODP (U13) DX, DX2, ODPR (U13) P60 (if in J17, remove CPU in U13) Reserved – leave Off Enable RAM parity checking Disable Flash voltage – leave on 2-3 129 130 Switch 3 4 5 6 7 8 Jumper E1,2 E3 E4 E5 The PC Engineer’s Reference Book – Vol 2: Motherboards Position Off* On Off* On Off* On Off* Off On Off* On Off* Position E1 Off On Off On Off On Off Function Allow password features Mono display Colour Clear EISA CMOS at boot Normal boot Deny access to setup Allow access Reserved Enable parity Disable Dual processor (also install E5) Single processor (also install E4) E2 On Function CPU speed 90 (60) Clear ISA CMOS at boot Normal boot Single processor Dual processor Dual processor Single processor Only install E4 or E5 – see also S8. Premmia GX P/100 As for Premmia GX P/90 (IDE). Premmia GX P/133 As for Premmia GX P/90 (IDE) except: Jumper E1,2 Position E1 On Off E2 On Off Function CPU speed 100 (66) 133 (66) Premmia LX P/60 As for Advantage! EXP P/60. Premmia MTE 4/33 As for Premmia 4/33(s), except: Switch S7 E10 E800 Position On Off* 2-3 Off Function Deny access to CMOS setup Allow access Reserved Reserved Remove CPU from ZIF socket at U84 before installing Pentium upgrade board. Premmia MTE 4/66d As for Premmia MTE 4/33. A Premmia MTE P/60 As for Premmia MTE 4/33. Premmia MX 4/66d As for Advantage! Adventure 8060d except S5 is reserved. Premmia MX 4/100t As for Advantage! Adventure 8060d except S5 is reserved. Premmia MX P/60 As for Advantage! 6060p. Premmia MX P/75 As for Advantage! 6060p. ASUS ASUSTeK Computer Inc www.asus.com All ID numbers (just above the memory count) contain 401A0-XXXX. A0 indicates the manufacturer, while XXXX is the BIOS revision level. Award BIOS ID The last two numbers of the BIOS part number. Code 5C Motherboard P/I-XP6NP5 Code Motherboard A7V Item Form Factor CPU Chipset Bus Memory (Mb) I/O Video Description ATX Notes Socket A Via KT133 5 PCI 3 DIMM sockets PS/2 Mouse and Keyboard, 2 USB, 2 serial, 1 parallel, 2 EIDE, floppy AGP CUSL2 Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) I/O Video Performance Description ATX Pentium III/Celeron 933/566 Intel 815E Award 6 PCI 2 CNR 512 Mb PS/2 Mouse and Keyboard, 5 USB, 2 serial, 1 parallel, 2 EIDE, floppy Intel 815 GMCH Good value Notes Socket 370 133 FSB 3 DIMM sockets AGP Pro 131 132 The PC Engineer’s Reference Book – Vol 2: Motherboards CUV4X Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) I/O Audio Performance Description ATX Pentium III/Celeron 800/533 Via Apollo 133A Award 5 PCI 1 ISA 1 CNR 1.5 Gb PS/2 Mouse and Keyboard, 4 USB, 2 serial, 1 parallel, 2 EIDE, floppy Crystal 4299 Good value Notes Description ATX Athlon AMD 751/VIA VT82C686A AMI 5 PCI/1 ISA 768 Mb PS/2 Mouse and Keyboard, 2 USB, 2 serial, 1 parallel, 2 EIDE, floppy Notes Socket 370 133 FSB 3 DIMM sockets AGP Pro K7M Item Form Factor CPU Chipset BIOS Bus Memory (Mb) I/O Video Slot A 3 DIMM sockets AGP MB-586A-PCI60C Item CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) Description Pentium 60/66 Mercury Award Flash 3 PCI/4 ISA 192 512 W/T Notes 6 x 32 Mb 72-pin 256 standard MEW Item Form Factor CPU Chipset Bus Memory (Mb) I/O Description ATX Celeron Intel 810 5 PCI/2 ISA 768 Mb PS/2 Mouse and Keyboard, 2 USB, 2 serial, 1 parallel, 2 EIDE, floppy Notes Socket 370 3 DIMM sockets P2B Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) I/O Video Performance Problems Description ATX Pentium II/Celeron 500 440BX Award 4.51PG 4 PCI/3 ISA 768 Mb PS/2 Mouse and Keyboard, 2 USB, 2 serial, 1 parallel, 2 EIDE, floppy Notes Slot 1 1 shared 3 DIMM sockets AGP Up to 8x, but slower than Soyo SY-6BA+ Awkward jumper positions. Few features. A P2B-S Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Video Performance Problems Comments Description ATX Pentium II/Celeron 500 440BX Award 4.51PG 4 PCI/3 ISA 1 Gb Notes PS/2 Mouse and Keyboard, 2 USB, 2 serial, 1 parallel, 2 EIDE, floppy Adaptec AIC-7890 LVD SCSI AGP Fast – better than Gigabyte GA-6BXF Slot 1 1 shared 4 DIMM sockets AOpen AX6B slightly slower but much cheaper P2L97-DS Item Form Factor CPU Speeds (MHz) Chipset ISA PCI Memory (Mb) I/O Video Performance Description ATX Pentium II x 2 550 MHz 2 4 512 Mb EDO/SDRAM EIDE, floppy, UltraWide SCSI (AIC 7880P) Notes Slot 1 366 MHz for stability 3.3v only 50 and 68-pin connectors. AGP 100 MHz, but slow. P3B-F Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) I/O Video Description ATX Pentium III/Celeron 440BX Award 4.51PG 6 PCI/1 ISA 1 Gb PS/2 Mouse and Keyboard, 2 USB, 2 serial, 1 parallel, 2 EIDE, floppy Notes Slot 1 100 FSB 1 shared 4 DIMM sockets UDMA/33 AGP P3C-E Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) I/O Audio Video Description ATX Pentium III/Celeron 820 Award 4.51PG 5 PCI/1 ISA/1 AMR PS/2 Mouse and Keyboard, 2 USB, 2 serial, 1 parallel, 2 EIDE, floppy Yamaha 744 Notes Slot 1 133 FSB 1 shared 2 RIMM sockets UDMA/33 AGP Pro 133 134 The PC Engineer’s Reference Book – Vol 2: Motherboards P3W Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Description ATX Pentium III/Celeron Notes Slot 1 100 FSB Intel 810 Award 4.51PG 6 PCI 1 AMR 3 DIMM sockets PS/2 Mouse and Keyboard, 2 USB, 2 serial, 1 parallel, 2 EIDE, floppy, joystick, audio UDMA/33 P5A Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Video Performance Description ATX Pentium – K62 500 ALi Aladdin V Award 4.51PG 5 PCI/2 ISA 768 Mb 512K PS/2 Mouse and Keyboard, 2 USB, 2 serial, 1 parallel, 2 EIDE, floppy Description Full AT 2 Pentium Pro 200 Orion AMI Flash 6 PCI/1 EISA 1 Gb 2S, 1P, IR Notes NCR/Symbios SCSI supported EISA shared with Asus mediabus slot Non-EDO. 8 sockets P/E-P6P4S Item CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) I/O Description Pentium 133/150/166 Orion Award Flash 4 PCI/3 ISA 512 2S, 1P, IR, 2 EIDE Notes 1 each shared Non-EDO. 4 sockets P/I-P6NP5 Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) I/O Socket 7 1 shared 3 DIMM sockets AGP Slow – TMC T15VG+ much faster P/E-P6RP7D Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) I/O Notes Description ATX Pentium Pro 200 Natoma (440 FX) Award Flash 5 PCI/3 ISA 256 2S, 1P Notes NCR/Symbios SCSI supported 1 ISA shared with Asus mediabus slot Non-parity, parity, ECC FPM, EDO, BEDO. 4 sockets A 135 P/I-XP6NP5 ATX version of P/I-P6NP5. P/I-P6RP4 Item CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Description Pentium Pro 200 Mars (450 KX) AMI Flash 4 PCI/3 ISA 512 Notes NCR/Symbios SCSI supported 1 ISA shared with Asus mediabus slot Non-parity, parity, ECC, either FPM or EDO 2S, 1P, IR PVI/486AP4 Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) Problems Description Notes 486 DX4, Pentium Overdrive (P24T) Aries Green Award 3 PCI/3 ISA 128 256 W/B Rev 2 NCR SCSI supported 4 x 32 Mb 72-pin SIMMs Rev 1.6 requires reset button to reboot if you have a SCSI controller installed. May be more stable if you disable the VL slot. Set cache timing to Normal (that is, not Fast) for stability. PVI-486SP3 5 slightly different versions, depending on the SiS chipset: A4 B2 B3 B4 B5 SIS 496 MU, SIS 497 MW. Supports up to PIO mode 2. SIS 496 NU, SIS 497 NS. Supports PIO mode 3 and above, but apparently not Mode 3 very well. SIS 496 NV, SIS 497 NS. Supports PIO mode 3 and above. SIS 496 NV, SIS 497 NU. Supports PIO mode 3 and above. SIS 496 OR, SIS 497 OT. Supports PIO mode 3 and above. Item CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) I/O Problems Description 486 Notes Does not work with a DX4-50/100 SiS Award Flash 3 PCI/3 ISA/VL 128 2S, 1P, PS/2, Fl, 2 VL IDE See below NCR SCSI supported after v1.2 1 shared PCI/VL Adaptec 2940UW may not work, but 2940W will. Don’t try to use v1.21 of the Adaptec BIOS. You might also need to turn IDE prefetch off for a 3c590 PCI Ethernet adapter. PCI/I-486 SP3G (D) Item CPU Description 486 Chipset BIOS Green Saturn 4 Award Flash Notes DX4, Intel/Cyrix, P24T/D (Pentium Overdrive). Set up AMD DX4 (3x33) as non-SL enhanced DX4, with J36 to 1&2 rather than 2&3. For AMD DX4 to run in 4x mode, pin B13 must be tied high tying to ground will make chip run as DX2-66. 4.50g 136 The PC Engineer’s Reference Book – Vol 2: Motherboards Item Bus Memory (Mb) Cache (K) I/O Problems Description 3 PCI/4 ISA 128 512 W/T 2S, 1P, IDE, Floppy, PS/2 Notes 1 each shared 4 sockets 256 standard On-board NCR 53c810 SCSI with 50-pin socket. Use EIDE in slot for more than 2 drives. On-board SCSI controller may have problems with OS/2 2.1 and a Quantum Prodrive 540S, as synchronous communication must be disabled for the system to boot. You may also need to turn off tagged command queueing to avoid data corruption with a Micropolis 4110 PCI/I-P54NP4 Item CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Jumper JP1 Description 2 Pentium 90/100 Intel 82430N (Neptune) Flash 4 PCI/4 ISA 512 512 W/B 2S, 1P, IDE, Floppy Position JP1 1-2 2-3 JP2 1-2 2-3 JP5 JP 11 JP12,13 JP16 JP17 JP18 JP20 JP21 JP22,23 JP24-26 JP24-26 Open Short 1-2* 2-3 JP12 1-2 2-3 1-2* 2-3 1-2* 2-3 Open Short Open* Short 1-2* 2-3 JP22 1-2 2-3 JP24 1-2 2-3 1-2 JP24 2-3 1-2 2-3 JP13 1-2 2-3 JP23 2-3 2-3 JP25 2-3 1-2 2-3 JP25 1-2 2-3 1-2 JP26 1-2 2-3 2-3 JP26 2-3 1-2 1-2 Notes P54C/CT. Socket 5 NCR SCSI supported 4 72-pin non-parity SIMMs 256 standard. Function PCI SC200 SCSI Card INT Assignment INT A INT B INT C INT D Enable PCI SC200 SCSI Card Termination Disable Enable PS/2 mouse port Disable DMA Channel for ECP Ch 1 Ch 2 Enable I/O Disable 5v BIOS flash voltage 12v BIOS flash voltage Host bus frequency 2/3 internal clock Half internal clock L1 cache writeback L1 cache writethrough CPU-PCI Bus Clock Ratio 2:1 CPU-PCI Bus Clock Ratio 3:2 L2 Cache Size 256K 512K Clock Frequency (AV9154A-27 clock generator) 66 MHz 60 MHz 50 MHz Clock Frequency (MX8315 clock generator) 66 MHz 60 MHz 50 MHz IRQ Settings for Edge-Triggered Cards Set IRQ in Setup as well. Jumpers are at the back somewhere near the centre, just behind the PCI slots. Defaults are all at 2-3. A IRQ 5 9 11 14 15 PCI 1 JP2 1-2 JP1 1-2 JP3 1-2 JP4 1-2 JP5 1-2 PCI 2 JP2 3-4 JP1 3-4 JP3 3-4 JP4 3-4 JP5 3-4 PCI 3 JP9 1-2 JP10 1-2 JP8 1-2 JP7 1-2 JP6 1-2 PCI 4 JP9 3-4 JP10 3-4 JP8 3-4 JP7 3-4 JP6 3-4 Case Connectors PCI/I-P54NP4D As for PCI/I-P54NP4, except Dual Pentium. P54C/CT in No 1 socket, P54CM in the other, and: Jumper JP19 JP31 Position 1-2* 2-3 Open Short Function Dual Pentium Single pentium Disable address pipeline Enable P/E-P54NP4 Item CPU Chipset BIOS Bus Memory (Mb) Cache (K) I/O Jumper JP1 JP11 JP14 JP20 JP22,23 Description 2 Pentium Neptune Award Flash 4 PCI/4 EISA 512 512 Position 1-2 2-3 Open Short 1-2 2-3 Open* Short JP22 2-3 2-3 JP23 1-2 2-3 Notes 1 each shared FPM, 8 banks Asynchronous D version has built-in I/O Function Power Card 1.2 3.5v (1.1 supported by default) Power Card 1.2 3.4v 1.5x clock 2x clock Dual CPU Single CPU L1 cache writeback L1 cache writethrough L2 cache size 256K 512K P/I-P54SP4 Item CPU Speeds (MHz) Chipset Description Pentium 75/90/100 SiS Notes older versions used the 5501/2/3; newer ones the 5511/12/13 137 138 The PC Engineer’s Reference Book – Vol 2: Motherboards Item BIOS Memory (Mb) Cache (K) I/O Problems Description Award Flash Notes NCR SCSI supported 4 72-pin SIMMs 1 Mb 2S, 1P, 2 EIDE, 1 Floppy CMD 640B Possibly disable green BIOS to boot with PCI SCSI P/E-P55T2P4D Item CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Description 2 Pentium 200 430 HX (T II) Award Flash 4 PCI/4 EISA/1 ISA 512 512 2S, 1P Notes NCR/Symbios SCSI supported 8 slots for non-parity, parity, or ECC FPM?EDO. 60 ns for 66 MHz CPUs and above. Pipeline Burst P/E-P5MP3 PCI/EISA. Aside from EISA slots, identical to MB-586A-PCI60C. Older versions had bugs in serial I/O. P/I-P55SP3AV Item CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Video Audio Description Pentium 200 Sis Award Flash 3 PCI/4 ISA 512 512 2S, 1P, Game SiS 6205 ESS 1788 Notes 5511/12/13 NCR/Symbios SCSI supported 1 each shared EDO/FPM Pipeline Burst. 256 standard Wavetable Upgrade Integrated, uses up to 2 Mb System DRAM. P/I-P55T2P4 Item CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) Description Pentium 75-200 430 HX Award 4 PCI/3 ISA 128 512 Notes Trition II NCR/Symbios SCSI supported. 1 each shared non-parity, parity or ECC, FPM or EDO 256 standard. CELP socket for upgrade. P/I-XP55T2P4 As for P55T2P4, but ATX. P/I-P54TP4(D) Item CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Description Pentium 75-200 MHz Triton Award 4 PCI/4 ISA 8-128 FPM/EDO Notes NCR SCSI 1 each shared A Item Cache (K) I/O Description 256-512 Kb sync/async IDE 0/1, Floppy, 2 serial, 1 parallel SMC super I/O controller Mouse port Performance Notes Mode 4 data transfers and DMA mode 2. Needs triton.exe A board equipped with 256k Burst-SRAM and EDO-RAM achieved transfer rates of 65 MB/sec to 2nd level Cache (K), 39 MByte/s on a direct Memory (Mb) access, 53 MByte/s on a write operation (STOSD), and 54 MByte/s on a Memory (Mb) to PCI transfer. You may need to remove old asynchronous Cache (K) before the boards recognize new pipeline burst Cache (K). Doesn’t like RAM chips labelled Ti -60 TMS417400DJ VBP 440230. Certain revisions do a PCI bus reset after the SCSI BIOS scans its bus, which causes problems for QLogic SCSI controllers (ISP1020 firmware level should be 1.27 or greater). 8-bit ISA networking cards will not work properly. These revisions of the floppy controller (SMC 37C665IR multi-I/O chip) are defective: Problems B9519/5-AIC, 6J75692-1 B9519/5-AIC, 6J75693-8 B9519/5-AIC, 6J75690-5 B9519/5-AIC, 6J75697-0 B9521/5-AIC, 6J75735-7 B9521/5-AIC, 6J75730-0 B9521/5-AIC, 6J75732-5 P/I-P55TP4(D) As for P/I-P54TP4(D) P/I-P55TP4XE(D) As for P/I-P54TP4(D) P/I-P55TP4N** As for P/I-P54TP4(D) P/I-P55TVP4 Item CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Description Intel/AMD Pentium Notes 60 ns RAM required for CPUs with an external clock of 66 MHz Triton III (430VX) Award 1 Mbit flash 3 PCI/4 ISA Up to 128 FPM/EDO parity/non-parity 256-512 Kb pipeline burst IDE 0/1, Floppy, 2 serial, 1 parallel Supports NCR/Symbios SCSI 1 each shared Includes IR TX/RX header PVI-486AP4 Rev 1.3, 1.6 Jumper JP17 JP17(?) JP18,19 Rev 1.6 139 Position 4-5 3-4 Open Open 1-2 JP18 2-3,4-5 JP19 1-2,3-4 Function 2x CPU internal clock 2.5x CPU internal clock 3x CPU internal clock CPU L1 cache writethrough CPU L1 cache writeback CPU type SL Enh 486DX & ODP, DX2 & ODP, DX4 & ODP 140 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper JP18,19 Rev 1.3 Position 1-2,4-5 2-3,4-5 1-2,4-5 2-3,5-6 1-2,4-5 1-2,4-5 1-2,4-5 1-2,4-5 1-2,3-4 1-2,4-5 1-2,4-5 1-2,3-4 3-4 3-4 3-4 4-5 Function DX & ODP, DX2 & ODP,SX, Cx486DX,DX2(-V) SL Enhanced 486SX & SX2, Cx486s 486SX,SX2 Pentium OverDrive, P24T,P24CT,P24D Am486DX2-66 (JP17-2 & 18-3 for 2x clock) Am486DX2-80 (3x), Am486DX4-100(3x) Am486DXL, Am486DX2L Am486SXL JP18 2-3,4-5 1-2,4-5 2-3,4-5 1-2,4-5 2-3,5-6 JP19 1-2 1-2 2-3 2-3 1-2 Cx5x86(M1sx)-133 MHz, Am5x86-P75(x5-133 MHz), AMD486DX4-SV8B(120 MHz), UMC-U5S not supported. CPU type SL Enh 486DX & ODP, DX2 & ODP, DX4 & ODP DX & ODP, DX2 & ODP,SX, Cx486DX,DX2(-V) SL Enhanced 486SX & SX2, Cx486s 486SX,SX2 Pentium OverDrive, P24T,P24CT,P24D Am486DX2-66(2x clock), Am486SXL, Am486SX2L Am486DX2-80(3x clock), Am486DX4-100(3x clock), Am486DXL, Am486DX2L, UMC-U5S, Cx5x86(M1sc)133MHz, Am5x86-P75(x5-133MHz), AMD486DX4-SV8B(120MHz not supported SP97(-V) Jumper RTC RAM RTCLR FS0-3 BF0,1,2 Position 1-2* 2-3 FS0 1-2 2-3 1-2 2-3 BF0 2-3 2-3 1-2 2-3 2-3 1-2 FS1 2-3 1-2 2-3 2-3 BF1 2-3 1-2 2-3 2-3 1-2 1-2 FS2 1-2 2-3 2-3 2-3 BF2 2-3 2-3 1-2 1-2 1-2 1-2 FS3 2-3 1-2 1-2 1-2 Function Normal Clear CMOS CPU host bus speed 75 MHz 66 MHz 60 MHz 50 MHz CPU-Bus frequency A, B, C, D, E, F -, -, -, -, 4, 1.5 -, -, -, -, 4.5, 1.5 3, 3, -, -, 3, 2.5x, 2.5, 2.5, 1,2, 2.5, 2 2x, 2, 2, 2, 2, 2 1.5x, 3.5, 3, 3, 3.5, P54C=A, P55C=B, 6x86PR=C, 6x86L-PR*=D, K6=E, 6x86L-P200+=F VID0-2 VGA_SEL1 VGA_SEL VGA_INT VID0 1-2 2-3 2-3 1-2 2-3 1-2 Out* In 1-2 2-3* 1-2 2-3* VID2 2-3 2-3 2-3 2-3 2-3 2-3 VID3 2-3 2-3 1-2 2-3 2-3 2-3 *Only version of M1 supported is 2.7 or later. Serial number on bottom of chip should be G8DC6620A or higher. CPU Voltage 3.5v (VRE) 3.4v (STD) 3.2v (Dual) 2.9v (Dual) 2.8v (Dual) 2.1v (Dual) Enable VGA Disable VGA Disable VGA Enable VGA VGA Interrupt by chipset (video capture cards) VGA Interrupt disabled A VL/I-486SVG0(X4) Rev 1.1,1.2 Jumper RN JP1 JP7,8 JP9 JP10 JP14,15,27 JP23-25 JP26 JP28 JP29 Position 1 2 1-2* 2-3 JP5 1-2 2-3 JP7 1-2 2-3 1-2 1-2 2-3 1-2* JP14 Open Open 1-2 4-5 1-2 2-3 JP23 1-2 2-3 2-3 2-3 1-2 1-2* 1-2 2-3 1-2 2-3 CPU 486SX DX(2),487SX,ODP SL486SX SL486DX(2), SLOD (169 pin) SLOD (237 pin) P24T P24CT56 DX4 3x clock DX4 2.5x clock DX4 2x clock Cyrix CX486S Cyrix DX/DX2 Function 30-pin memory sockets used 72-pin SIMMs only Internal lithium battery External lithium battery Memory Single-sided module in SIMM5 Double-sided module in SIMM5 CPU Type (Hardware Trap) Intel 486SX, DX(2), SL, DX4 Cyrix S(2), DX(2), DX2-V, AMD 486D(S),XL/L2 P24D, P24T, P24CT, AMD 486D(S) X+ Cyrix CPU Intel CPU Enable PS/2 mouse (IRQ 12 not available) (2-3 disable) Cache Size 128K (32K8x4) 256K (32K8x8) 256K (64K8x4) 512K (64K8x8) 512K (128K8x4) 1 Mb (128K8x8) CPU Clock Speed 20 MHz 25 MHz 33 MHz 40 MHz 50 MHz VESA clock delay 2-3 No delay VL bus 0 wait state VL bus 1 wait state CPU external speed <=33 MHz CPU external speed >33 MHz JP6 1-2* 2-3 JP8 2-3 1-2 1-2 JP15 2-3 1-2 2-3 1-2 2-3 1-2 JP24 1-2 1-2 2-3 2-3 1-2 JP27 1-2 1-2 1-2 2-3 2-3 2-3 JP25 1-2 1-2 2-3 1-2 2-3 JP18 JP19 JP20 4-5 5-6 1-2 1-2 4-5 4-5 4-5 4-5 4-5 4-5 4-5 4-5 1-2,3-4 1-2,3-4 3-4,5-6 3-4,5-6 5-6 5-6 3-4,5-6 3-4,5-6 3-4,5-6 2-3,4-5 2-3,4-5 JP21 2-3 1-2 2-3 1-2 1-2 1-2 1-2 1-2 1-2 1-2 2-3 1-2 Rev 1.5 and later Jumper RN JP1 JP2-4 Position 1 2 1-2* 2-3 Function 30-pin memory sockets used 72-pin SIMMs only Internal battery SMI out connector JP22 2-3 2-3 2-3 2-3 2-3 1-2 1-2,4-5 2-3,4-5 2-3,4-5 2-3,4-5 2-3 2-3 141 142 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper JP5,6 JP7,8 JP9 JP10 JP11 JP12 JP13 JP14,15,29 JP23 JP25-27 JP28 JP30,31 JP34 Position JP5 1-2 2-3 JP7 1-2 2-3 1-2 1-2 2-3 1-2* 2-3 1-2* 2-3 1-2 2-3* JP14 Open Open 1-2 4-5 1-2 2-3 2-3 3-4 JP25 1-2 2-3 2-3 2-3 1-2 1-2* 2-3 JP30 1-2 2-3 1-2* 2-3 JP6 1-2 2-3 JP8 2-3 1-2 1-2 JP15 2-3 1-2 2-3 1-2 2-3 1-2 JP29 1-2 1-2 1-2 2-3 2-3 2-3 JP26 1-2 1-2 2-3 2-3 1-2 JP27 1-2 1-2 2-3 1-2 2-3 JP31 1-2 2-3 CPU 486SX/2/SL DX/2,487SX,ODP,DX4 (3 x clock) DX4 (2.5 x clock) DX4 (2 x clock) P24D P24CT P24T (237 pin SL ODP) DX4 ODP 3x clock DX4 ODP 2.5x clock DX4 ODP 2x clock AMD486SXL, SX2L AMD486DXL, DX2L AMD486DXL4 3x clock AMD486DXL4 2x clock Cyrix 486DX,DX2 Cyrix 486DX2-V (JP23 1-2,4-5) Cyrix DX5 3x clock Cyrix DX5 2x clock JP18 5-6 1-2,5-6 1-2,5-6 1-2,5-6 4-5 1-2,4-5 4-5 5-6 5-6 5-6 5-6 5-6 1-2,5-6 1-2,5-6 2-3,5-6 2-3,5-6 1-2,4-5 1-2,4-5 Function Memory Single-sided module in SIMM5 Double-sided module in SIMM5 CPU Type (Hardware Trap) Intel 486SX, DX(2), SL, DX4 Cyrix S(2), DX(2), DX2-V, AMD 486D(S),XL/L2 P24D, P24T, P24CT, AMD 486D(S) X+ Cyrix CPU Intel CPU Enable PS/2 mouse Disable DMA selection - reserved Mono/VGA CGA Disable SMI switch (JP32) control Enable Cache Size 128K (32K8x4) 256K (32K8x8) 256K (64K8x4) 512K (64K8x8) 512K (128K8x4) 1 Mb (128K8x8) Writeback L1 cache Writethrough L1 cache CPU Clock Speed 20 MHz 25 MHz 33 MHz 40 MHz 50 MHz VESA clock delay No delay Wait state/VL bus clock 0 wait state, <=33 MHz 1 wait state, >33 MHz Intel DX4 (3.45v) Cyrix DX2-V (3.6v) JP19 1-2,5-6 1-2,5-6 1-2,5-6 1-2,5-6 1-2,5-6 1-2,5-6 1-2,5-6 1-2,5-6 1-2,5-6 1-2,5-6 4-5 4-5 4-5 4-5 2-3,5-6 2-3,5-6 1-2,5-6 1-2,5-6 JP20 1-2,5-6 1-2,5-6 1-2,5-6 1-2,5-6 1-2,5-6 5-6 5-6 1-2,5-6 1-2,5-6 1-2,5-6 4-5 4-5 4-5 4-5 2-3 2-3 1-2,5-6 1-2,5-6 JP21 1-2 1-2 1-2 1-2 1-2,3-4,5-6 1-2 1-2 1-2 1-2 1-2 2-3 2-3 1-2,3-4,5-6 1-2,3-4,5-6 JP22 5-6 1-2 5-6 1-2 4-5 4-5 4-5 4-5 2-3 2-3 1-2 JP24 2-3 1-2 1-2 1-2 1-2,4-5 1-2 1-2 1-2 1-2 1-2 2-3 1-2 1-2 1-2,4-5 1-2 1-2 1-2 1-2 A 143 VL/ISA-486SV2 Rev 1.7 Jumpers marked TP are factory set and must not be changed. The defaults are given below because the board will not work if they are in the wrong position. TP2 Short Jumper BJP1 JP2 JP22 CJ1-3 CPJ1-3 CS1-3 TP5 Open TP13 1-2 Position Ext Int CGA Mono/other Intel Cyrix CJ1 2-3 1-2 1-2 CPJ1 Open 1-2 2-3 CS1 1-2 1-2 2-3 1-2 2-3 TP14 1-2 CJ2 2-3 Open 1-2 CPJ2 2-3 1-2,3-4 2-3 CS2 1-2 1-2 2-3 2-3 1-2 TP15 1-2 CJ3 Open Short Open CPJ3 1-2 1-2 1-2,3-4 CS3 1-2 2-3 2-3 2-3 1-2 TP17 2-3 TP25 1D TP26 Open TP27 1D Function External battery at BCON1 Internal battery CGA display Mono or other display Intel CPU Cyrix CPU Cache size 64K (8Kx8x8) 128K (32Kx8x4) 256K (32Kx8x8) PGA CPU Type 486SX PGA 486DX/DX2 487SX/Overdrive/486SX-PQFP CPU External clock speed (with clock generator) 20 MHz 25 MHz 33 MHz 40 MHz 50 MHz VL/I-486SV2G(GX4) Rev 2.0 and later. Jumper JP5,6 JP11 JP23-25 JP32,33 Position JP5 1-2 1-2 2-3 2-3 1-2 1-2 2-3 JP23 1-2 2-3 2-3 2-3 1-2 JP32 1-2 2-3 Open Open CPU AMDX4-SV8B, iDX4-EW iDX2-&EW(P24D) JP6 2-3 2-3 1-2 1-2 1-2 JP24 1-2 1-2 2-3 2-3 1-2 JP33 Open Open 1-2 2-3 JP25 1-2 1-2 2-3 1-2 2-3 JP16 1-2,5-6 Function CPU Type (Hardware Trap) 486DX24ODP,487SX,SL 486SX,DX,DX2,DX4,AM486DX4-NV8T,DX2-NV8T Cyrix DX(2),DX2-V,DX4,5x86 AM486DXL4,DXL2,Ti486DX-G i486DX4-&EW,P24D,P24T,AM486DX4-SV8B Cyrix CPU AMD/Intel CPU CPU external clock speed 20 MHz 25 MHz 33 MHz 40 MHz 50 MHz CPU Voltage 3.45 3.6 4 3.3 JP17 1-2,5-6 JP18 1-2 JP19 1-2,3-4,5-6 JP20 Open* JP21 Short JP22 1-2,4-5 144 The PC Engineer’s Reference Book – Vol 2: Motherboards CPU JP16 JP17 JP18 AMDX4-NV8T, DX2-NV8T 1-2,5-6 4-5 4-5 DXL4,DXL2 i486DX4ODP 5-6 1-2,5-6 1-2,5-6 iSL486SX,SX2, NonSL486SX,SX2 5-6 1-2,5-6 1-2,5-6 Cx486DX4(3.45V) 2-3,5-6 2-3,5-6 2-3 Cx286DX2-V(3.6V/4V) Ti486DX2-G(3.45V) Cx486DX,DX2 Cx486DX4-P/O 1-2,5-6 1-2,5-6 1-2 Cx5X86(M1sc) iSL(NonSL)486DX,DX2 1-2,5-6 1-2,5-6 1-2,5-6 iSL(NonSL)487SX,ODP i486DX4 P25T & 237-Pin SL ODP 4-5 1-2,5-6 5-6 AM5x86-P75(x5-133MHz) 1-2,5-6 1-2,5-6 1-2 Cx5x86(M1sc)-133MHz 1-2,5-6 1-2 1-2,5-6 * Open (3x) 1-2 (2x) 5-6 (2.5x) **Open (3x) 1-2 (4x) ***Open (3x) 2-3 (2x) ****open DX/2 JP19 Open JP20 4-5 1-2 1-2 2-3 Open* Open 2-3 1-2,3-4,5-6 Open* Open 1-2 1-2 Open* Open 1-2 1-2 1-2,3-4,5-6 1-2,3-4,5-6 Open Open** Open** 2-3 2-3 Open 1-2 1-2,4-5 1-2 VX97 Jumper BBLKW JP 1 FS0-2 BF0,1 Position 1-2 2-3 Closed* FS0 1-2 2-3 1-2 2-3 2-3 BF0 1-2 1-2 2-3 2-3 1-2 FS1 2-3 1-2 2-3 2-3 2-3 BF1 1-2 2-3 2-3 1-2 1-2 Function Disable Boor Block Programming Enable Reserved – Battery Test Jumper CPU Ext Clk 75 MHz 66 MHz 60 MHz 55 MHz 50 MHz Frequency Ratio 3.5 3 2.5 2 1.5 FS2 1-2 2-3 2-3 1-2 2-3 Astar Award BIOS ID The last two numbers of the BIOS part number. Code 9 Motherboard P55-SA Code AC Motherboard P55-TH P55-TH Epox P55-TH AT&T See also Olivetti Award BIOS ID The last two numbers of the BIOS part number. Code 1 Motherboard 1455 Code 1-00 Motherboard GIS Globalyst 330-360 JP21 Open *** Open Open 1-2 **** JP22 1-2,4-5 1-2 2-3 1-2 A 145 1455 Same as Mitac LH4077C? ATC www.atc.co.jp See A-Trend ATI SX Requires BIOS upgrade for Windows enhanced mode. J8 & J9 to 32K page memory allocation, not 16K. Atima Technology See Gemlight www.atima.com ATL Yukon HX Rev 2.0 and later. Jumper JP9, J31 JB2,3 J2,3,4 JB1 J5 J8 J11 Position JP9 On Off JB2 All on JB3 All on J3 On On Off Off 1-2, 3-4 3-5, 2-4 1-3, 4-6 3-5, 4-6 Close Open In Out 1-2 2-3 J31 On Off J4 On Off On off J2 x 1-2 2-3 x Function (JP9 5-6, 7-8) P54 P55 5v DRAM Power 3v DRAM Power CLK 50 60 66 RS50 1.5x CPU 2 3 2.5 CLK/4 CLK/3 Clear CMOS Normal PNP Non PnP A-Trend www.a-trend.com Award BIOS ID The last two numbers of the BIOS part number. 146 The PC Engineer’s Reference Book – Vol 2: Motherboards Code 1-00 4C 9C 9C Motherboard ALI 1762 or 1442G ATC 1000 ATC 1000/2000/5000 ATC 1020 Code AC-00 BC-00 H HC-00 Motherboard ATC 5000 ATC 1425B ATC 1425B ATC 1425A ATC 1000+ 430VX. Aka Fugutech M 507 Jumper JP3,4 JP5 JP6 JP8,9 Position JP3 Open Close Close Open 1-2 3-4 1-2 3-4 5-6 7-8 9-10 1-2 2-3 JP8 1-2 1-2 2-3 2-3 JP4 Open Close Open Close JP9 1-2 2-3 2-3 1-2 Function Host clock 50 MHz 55 MHz 60 MHz 66 MHz VRE CPU voltage (3.4-3.6v) STD CPU voltage (3.31-3.6v) 3.5v CPU core 3.3v CPU core 2.9v CPU core 2.8v CPU core 2.7v CPU core Single voltage CPU (P54C, 6x86, K5) Dual Voltage (P55C) Clock multiplier 1.5x 2x 2.5x 3x ATC 5000 430VX Jumper JP2 JP3 JP6 Position 2-3,4-5 2-3,5-6 1-2,5-6 1-2,5-6 1-2,4-5 2-3,4-5 1-2 3-4 1-2 3-4 5-6 7-8 9-10 Function 2x 2.5x 3x 60 MHz host clock 66 MHz host clock 75 MHz host clock VRE CPU voltage (3.4-3.6v) STD CPU voltage (3.31-3.6v) 3.5v CPU core 3.3v CPU core 2.9v CPU core 2.8v CPU core 2.7v CPU core Unable to verify core voltages! ATC 6220 Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Description ATX Pentium II/Celeron 500 440BX Award 4.51PG 4 PCI/3 ISA 768 Mb PS/2 Mouse and Keyboard, 2 USB, 2 serial, 1 parallel, 2 EIDE, floppy Notes Slot 1 1 shared 3 DIMM sockets A Item Video Performance Comments Description Notes AGP Good, but SuperMicro P6SBA is faster 133 MHz bus – stable when overclocked ATC 6254M Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) I/O Video Audio Description ATX Pentium II/Celeron Notes Slot 1 440BX Award 4.51PG 4 PCI/2 ISA 1 Gb PS/2 Mouse and Keyboard, 2 USB, 2 serial, 1 parallel, 2 EIDE, floppy 3Dfx Voodoo3 2000 (16 Mb) Yamaha YMF740C FW-6280BXDR/155 Item Form Factor CPU Cache Chipset Bus Memory (Mb) I/O Video Comments Description ATX Pentium II Notes SMP Slot 1 Intel 440BX 6 PCI 768 Mb 2 EIDE, floppy USB, IR 3 DIMM sockets AGP 2x SuperMicro P6DGU is better Attractive Computer Technology Auhau Electronics (Sukjung) www.computersources.com.hk/auhau AVT Industrial Formerly Concord Azza www.azzaboard.com Award BIOS ID The last two numbers of the BIOS part number. Code 0C-00 2C 9C 9C-00 AC-00 1 shared 4 DIMM sockets Motherboard 4SIG 4SPI PT 51H PT 51V PT 5IS/VL Code BC-00 DC-00 EC-00 FC Motherboard PT 51V 5IW PT 5IV PT 5IVH 147 148 The PC Engineer’s Reference Book – Vol 2: Motherboards 4SIG Same as Kaimei KM-S4-1 PCI rev 5.1 or Rectron RT 4S3 B BCM BCM Advanced Research Inc, or GVC www.bcmgvc.com Award BIOS ID The last two numbers of the BIOS part number. Code A AC AC-00 BC DC Motherboard SQ 599 SQ 593 or 594 SQ 599/P54SB SQ 576 SQ 591 or 594 Code HC HC-00 IC KC Motherboard SQ 595 LX 770 486 PCI SQ 595/575 FR 550 BCOM Bek-Tronic See also Bestkey Award BIOS ID The last two numbers of the BIOS part number. Code AC-00 Motherboard BEK P405 Code Motherboard Bestkey See also BEK-Tronic Award BIOS ID The last two numbers of the BIOS part number. 150 The PC Engineer’s Reference Book – Vol 2: Motherboards Code CC Motherboard 5725 Code Motherboard Biostar www.biostar-usa.com www.biostar.com.tw www.biostar.net Award BIOS ID The last two numbers of the BIOS part number. Code 1 3 8 8C-00 9C 9C-00 Motherboard MB 1566PAT-B VIP MB 8433/40 UUC MB 8433UUD-A v3.1 MB 8433UUD MB-8500TEC M5ATA Code A-00 B(C) BC DC YC-00 Motherboard MB 8500 URC MB 8500SAC M6TBC (BX) M6TLC (LX) MB 8433 /40 /50UUC-A v2.1 8433UUD Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Performance Problems Comments Description AT 486 25, 33 or 40 UMC 888X Award 3 PCI/4 ISA Notes 2S, 1P, PS/2 May not use 3 parallel ports. May be problems with built-in PS/2 mouse. Including AMD 5x86/P75 PCI bus can use 25, 26.67 or 33 MHz 72-pin only. Will use EDO with the UUD960326I BIOS. May not like TI memory. May not be able to use more than PIO Mode 3, despite BIOS Also known as Quantex MBD-4PB2 or 4MB2 CPU Selection CPU Speed Selection Cache (K) Selection Flash ROM Selection DMA Channel Selection JP16, JP37, JP39, JP45, JP46, RN11-15 Remove JP15 for 40 MHz. JP5, 6, 7 J13, Intel (12 v) or SST (5 v). JP8, 9 8500TVX Jumper JP3 JP4 JP5 JP8-9 Position 1-2 2-3 Open Closed 3-4 1-2 1-2.3-4 Both Open JP8 Open Open Closed Closed Open JP9 Open Closed Closed Open Open Function 5v Flash ROM 12v Flash ROM Normal Clear CMOS 66 MHz bus clock 60 MHz 50 MHz 55 MHz Clock Multiplier 1.5 2* 2.5 3 3.5 v2.3 + - otherwise both open B Jumper JP6, 11 JP7 JP12 JP14 Position JP6 1-2 2-3 Open Closed Open Closed Open Closed JP11 1-2,3-4 open 151 Function CPU Type Single Voltage Dual Voltage 256K cache 512K cache 3.5v CPU (VRE) 3.45v CPU (Std & VR) 2.9v (Dual Voltage CPU) 2.6v Password recovery: Power off – Close JP4 – Power On, then off after memory count. Open JP4 – Power On – reset password M6TBA Item Form Factor CPU Chipset BIOS Bus Memory (Mb) Cache (K) I/O Video Comments Description ATX Pentium II/III 440BX Award 4 PCI/3 ISA 768 Mb Notes Slot 1 3 DIMM sockets 2S, 1P, PS/2, USB, EIDE AGP Supermicro P6SBA a better choice M6TWC Item Form Factor CPU Chipset BIOS Bus Memory (Mb) I/O Video Description Micro-ATX Celeron Intel 810 Notes Socket 370 3 PCI 512 Mb PS/2 Mouse and Keyboard, 2 USB, 2 serial, 1 parallel, 2 EIDE, floppy onboard M7MKA Item Form Factor CPU Chipset BIOS Bus Memory (Mb) I/O Video Description ATX Athlon AMD 751/756 Award 5 PCI/2 ISA 768 Mb 2 EIDE, floppy AGP Notes Slot A UDMA/66 3 DIMM sockets 2x Bioteq European name for Biostar. www.bioteq.com BJMT Technology www.bjmt.com 2 DIMM sockets 152 The PC Engineer’s Reference Book – Vol 2: Motherboards Award BIOS ID The last two numbers of the BIOS part number. Code AC Motherboard Nimble VX Code BC Motherboard Nimble Triton-III VX 82430VX Same as FYI 82430VX P55C Jumper JP1,2 JP7-9 17-18 JP8 JP12,13 J14,15 JP19,20 JP26 Position JP1 1-2 2-3 JP7 1-2 1-2 2-3 2-3 2-3 1-3,2-4 3-5,4-6 JP12 On Off Off On J14 1-2 1-2 2-3 JP19 Off On On Off 1-2,3-4 1-2 3-4 All off JP2 1-2 2-3 JP9 2-3 2-3 2-3 2-3 1-2 JP17 2-3 2-3 2-3 2-3 2-3 JP13 On Off On Off J15 1-2 2-3 2-3 JP20 Off Off On On JP18 1-2 1-2 1-2 1-2 2-3 Function IR function COM2 IR Cache size 256K (onboard) 256K (module) 512K (onboard) 512K (module) 512K (onboard + module) 5v DIMM 3.3v DIMM Host bus clock 50 MHz 55 MHz 60 MHz 66 MHz BIOS type EPROM 5v Flash 12v flash Clock multiplier 1.5x 2x 2.5x 3x 3.3v CPU 3.45v CPU 3.52v CPU 3.6v CPU voltage Nimble Triton-III VX FYI board. Bluepoint Technology BMA USA name for Biostar. Brother BC 3286 Jumper J9,26 SW2-1 Position J9 In Out J26 In Out SW2-1 Off Out Function Display Onboard Mono External B Jumper J13 J17 J18 J19 SW1 SW2 Position 1-2 2-3 1-2 2-3 In Out Function RAS delay 100ns RAS delay 80ns 1.5ns RAS via F08 delay 2.2ns RAS via F08 delay Turbo mode Normal ops Reserved 512K base memory 640K base memory 1 Mb base memory Enable COM2 Enable LPT Enable COM1 3-4 2-3 4 1 2 3 BC 3386sx Jumper J1 J8 J12 J20 J21 J22 J23 J25 J31,32 J33 J36 Position In 1-2 2-3* In* 1-2 2-3 1-2 4-2 3-4 1-6* 2-5* 3-4* 1-2 2-3 Out In* 1-2 2-3* Out* In 1-2 Function 80387sx installed 27512K BIOS size 27256K BIOS size External delay for timing Access time 85ns Access time 90ns Enable IRQ9 44256 in U39, U57 for 256K memory 44256 in U39, U38 & U52 for 512K memory Enable COM2 Enable LPT Enable COM1 256K DRAM clock select 512K DRAM clock select Normal ops Turbo Reserved Non-interlaced monitor Interlaced monitor VGA 16-bit data path VGA 8-bit data path BC 5386sx Jumper JP2 JP4,5 JP6 JP10 JP11 JP102 Position 1-2 2-3 DRAM type 100 ns FPM 100ns FPM All 100 ns 120 ns 1-2 2-3 1-2 2-3 In Out* 1-2 2-3 Function 512K BIOS size (27512 x 2) 256K BIOS size (27256 x 2) JP4 JP5 Wait state 1-2 1-2 0 or 1 1-2 2-3 0 or 1 2-3 1-2 1 or 2 2-3 2-3 2 or 3 CGA display Mono display ROM type 512K (27512) ROM type 256K (27256) Copro clock asynchronised Copro clock synchronised Power good signal from power supply Power good signal by main board 153 154 The PC Engineer’s Reference Book – Vol 2: Motherboards BC 5386dx Jumper JP1 JP3 JP5 JP6 JP8 Position In* Out 1-2 2-3 1-2 2-3 1-2* 2-3 In* Out Function Colour display Mono display 27512K BIOS size 27256K BIOS size 80ns DRAM 100ns DRAM Copro not installed Copro installed High speed Low speed SW1 S2 S3 S6 S7 S8 Bank 1 Bank 2 Bank 3 Bank 4 Off Off Off Off Off 256Kx9 Off On Off Off Off 256Kx9 Off On On Off Off 256Kx9 256Kx9 Off On On On Off 256Kx9 256Kx9 256Kx9 On Off Off Off Off On On Off Off Off 1 Mbx9 On On On Off Off 1 Mbx9 1 Mbx9 On On On On Off 1 Mbx9 1 Mbx9 1 Mbx9 When S8 is On, only 14 Mb is detected. The additional 2 Mb is for add-On cards with their own memory. Bull APW Jumper J5 J7 J07 J10 J14 Position In 1-2* 2-3 1-2 2-3* 1-2* 2-3 Out J16 Function Disable HD Reserved Onboard battery External battery 5¼” and 3½“ floppies 3½“ floppy only Mono display Colour display Display card in 16-bit slot Reserved AP-M45/Micral 45 Jumper SWD1 JDO1 Position Display Mono Colour EGA Function 1-1 Off On Off 1-2 Off Off On SW1 Switch 1,2 3 4 Position Memory 640K 1152K Bank 2=2 Mb Extended memory On Off Jumper S1 S2 On Off Off Off On On Off Off Reserved Add-On Mono Add-On CGA 1-3 Off Off On 1-4 Off Off Off JDO1 2-3 2-3 1-2 Total 1 Mb 2 Mb 3 Mb 4 Mb 4 Mb 8 Mb 12 Mb 16 Mb B Switch 5 6,7,8 Position Off Jumper Enable video Reserved Switch 1 2 3 4 Position Off* Off* On* On 5 Off* On Off* On* Off* Off* On* Function Enable mouse Disable mouse IRQ5 Enable mouse IRQ3 CP8 interface address 0370-0377h Parallel address 278-27Fh Serial address 2F8-2FFh SCSI address 320-327h SCSI address 328-32Fh Enable SCSI IRQ7 Enable SCSI IRQ15 Enable parallel IRQ5 Enable parallel IRQ7 Enable IRQ3 CP8 interface SW2 6 7 8 9 10 BM 200 JMP1 Jumper ST11 ST5 ST2 ST3 ST7 ST8 ST9 ST4 Position Out In Out In In In Out* Out Function 27256 EPROM-1 (170ns) 2 WS 8 MHz bus RAM: 1 WS ROM: 2WS 1 Mb DRAM 120ns 4 x 256 x 9 Fast mode JMP2 Jumper ST34 ST35 ST48,49 Position In In CTS CP8-CP8 ST50,51 DSR CP8-CP8 ST52,53 RXD CP8-CP8 Function Precomp 187 ns DRQ2 sent (DMA for floppy) ST48 ST49 Out In In* Out* ST50 ST51 Off On On* Off* ST52 ST53 Out In In* Out* JMP3 Jumper ST30 ST29 ST27 ST26 ST32 ST31 ST28 ST33 Position In In In In In In In In Function HDCS1 1F0-1F7h HDCS2 3F6-3F6h SERICS (COM2-CP8) 2F8-2FFh 390-397h 370-377h SEROCS (COM1) 3F8-3FF FLPCS3 (floppy) 3F7h FLPCS2 (floppy) 3F2h PRTCS (parallel) 278-27Fh, 378-37Fh FLPCSI (floppy) 3F4h/3FS 155 156 The PC Engineer’s Reference Book – Vol 2: Motherboards JMP4 Jumper ST10 ST38 ST43 ST13 ST47 ST46 ST24 ST25 Position Out In* In In In Out* In In Function DRAM 120/150ns Position Out* Function Out Out* Out Out* In In Out In In In In In In Out In In In Out* In Out Reserved VGA DRAM memory selected – off for EGA VGA I/O selected IRQ7 selected 2F8-2FFh V24 (9 pin)/CP8 3F8-3FFh V24 SEROCS 378-37Fh PARALL-PRTCS JMP5 Jumper ST22 ST19 ST18 ST20 ST21 ST56 ST6 ST12 ST14 ST15 ST16 ST17 ST36 ST37 ST40 ST41 ST42 ST44 ST45 ST54 ST55 VGA 48 MHz system clock connected Colour display Mono display 14.832 MHz clock connected 36 MHz VGA clock 25.175 MHz VGA clock 28.322 MHz VGA clock 16 MHz clock 9.6 MHz floppy interface Link from P6 mechanical grd to 0v not established MEMCS16 disabled (no video 16-bit access) IOCHRDY (HD connected) IRQ14 only Power supply +5v Serial/parallel I/O address For non-VGA monitors, remove JMP4 ST13 and 43 and add JMP5 ST23 and 21. Add ST21 for Mono. EP Main Logic Jumper W2 U158 U173 Position Video Enable Disable Memory 256K 512K 640K Bank Address C0000-C3FFF C4000-C7FFF C8000-CBFFF CC000-CFFFF D0000-D3FFF D4000-D7FFF D8000-DBFFF DC000-DFFFF E0000-E3FFF Function 1 Off* On S1 On On Off* S1 On On On On On On On On Off 2 Off* On S2 On Off Off* S2 On On On On Off Off Off Off On 3 Off* On S3 Off Off Off* S3 On On Off Off On On Off Off On 4 On* Off S4 On Off On Off On Off On Off On 5 On* Off 6 On* Off B Jumper U178 1 2 3 4 5,6 Position E4000-E7FFF E8000-EBFFF EC000-EFFFF Disabled On* Off On* On* On* Off Video Not used 80x25 colour 40x25 colour Mono Function Off On Off On Off On Off* Off* 8087-2 not installed 8087-2 installed Reserved Enable Onboard HD One floppy Two floppies 6 On On Off On On Off Off* Off* On Off Off Off* Off On Off Off* Micral 600 Jumper SW1 SW2 S1 S2 S3 S4 S5-7 S8 S9 S10 JP6-8 JP12 JP13-16 Position On* On* Off Off* Off* Off* Printer port LPT1 LPT2 On Off* On Off* On* Maths copro 80387 installed Not installed 1-2* RAM Type 2 Mb 512x9 4 Mb 512x9 6 Mb 512x9 1Mx9 4 Mb 1Mx9 8 Mb 1Mx9 Block A A&B A B A A&B SP-16 Processor Card Jumper S1 SW2-1 SW2-2 SW2-3 SW2-4 SW2-5 SW2-6 SW2-7 Position 1-2* 2-3 On* Off* Off* Off* Off* Off* Off* Function Colour display Mono display 80387 installed Reserved Video DMA NMI failsafe timer disabled INT 10 not selected INT 11 not selected INT 12 not selected Function Sets EPROM and I/O recovery delay 25 pin=COM1 * 9 pin=COM2 9 pin=COM1 * 25 pin=COM2 Enable COM1 Enable COM2 Enable LPT1 S5 S6 S7 Off Off On* On On Off ROM BIOS BIOS in RAM Primary display CGA Primary display Mono Enable 2nd SIMM block (B) JP6 JP7 JP8 2-3 2-3 2-3 1-2 1-2 1-2 Relocate RAM at 0A0000-0Dffff to FA0000-FDFFFF JP13 JP14 JP15 JP16 2-3 2-3 1-2 1-2 2-3 2-3 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 2-3 2-3 2-3 2-3 157 158 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper SW2-8 Position On Off Function Normal system speed during floppy access Emulate 8MHz during floppy access SP-SX V16 Processor Card Jumper S1 S2 S3-1 S3-2 S3-3 S3-4 S3-5,6,7,8 Position 1-2* 2-3 1-2* 2-3 Out* In Out* In Out* In Out* Memory Deselected 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Function Colour display Mono display 16 MHz CPU 8 MHz CPU 4 wait states 3 wait states Autoswitch mode 8 MHz mode 0-512K 0-256K 512K-1Mb enabled Mapping Area 100000-160000 200000-260000 300000-360000 400000-460000 500000-560000 600000-660000 700000-760000 800000-860000 900000-960000 A00000-A60000 B00000-B60000 C00000-C60000 D00000-D60000 E00000-E60000 F00000-F60000 S5 In Out* In Out In Out In Out In Out In Out In Out In Out SP-20 Processor Card Jumper S1 SW2-1 SW2-2 SW2-3 SW2-4 SW2-5 SW2-6 SW2-7 SW2-8 Position 1-2* 2-3 On* On Off Off Off* Off* Off* On Off Function Colour display Mono display 80387 installed Auxiliary Input Device port enabled Video RAM shadowed NMI failsafe timer disabled INT 10 not selected INT 11 not selected INT 12 not selected Normal system speed during floppy access Emulate 8MHz during floppy access S6 In In* Out Out In In Out Out In In Out Out In In Out Out S7 In In* In In Out Out Out Out In In In In Out Out Out Out S8 In In* In In In In In In Out Out Out Out Out Out Out Out C Caliber Computer Corp www.calibercorp.com California Graphics & Peripherals www.californiagraphicsusa.com Award BIOS ID The last two numbers of the BIOS part number. Code 9C-00 LC-00 Motherboard Sunray VIA Sunray II Pro rev A1 Code TC Motherboard Sunray II Pro rev D Sunray II Pro Rev A1 - Soyo 5TC2? Rev D – Wintec MP064? Sunray VIA Epox P55-VP ChainTech ELT www.chaintech.com.tw Award BIOS ID The last two numbers of the BIOS part number. Code 0 1-00 Motherboard 486SLB 5UBM or 4SLE Code A AC-00 Motherboard Chaintech 5SEM 5HTM rev M101/586SEM 160 The PC Engineer’s Reference Book – Vol 2: Motherboards Code 2-B2 9C 9-01 9C-00 9C-01 9C Motherboard 486SPM 6BTM (BX)/ 6LTM (LX)/5IFM 5SBM2 5SEM M102 5IDM2 M105 (FX) 5VGM/5IFM/5IGM M 101 Code AC BC C-00 DC I Motherboard 586IEM/0/0.1 5IEM 486SPM M1.02 6FTM 486SPM CT-3AGM2 Item Form Factor CPU Cache Chipset BIOS Bus Memory (Mb) I/O Video Description ATX Pentium/K6 512 Kb Via MVP3 3 PCI/3 ISA 768 Mb 2 EIDE, floppy USB, IR Notes Super Socket 7 UDMA/33 3 DIMM sockets AGP 2x CT-5AGM2 Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Video Performance Description Baby AT Pentium 550 VIA MVP3 Notes 4 PCI/3 ISA 384 512 2 EIDE, floppy, USB 1 shared. 100 MHz bus speed 3 DIMM sockets Socket 7 AGP About average CT-6AJA4 Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) I/O Audio Description ATX Pentium III/Celeron 733/700 VIA Apollo Pro 133A Award 5 PCI 1 ISA 1 ANR 768 Mb PS/2 Mouse and Keyboard, 2 USB, 2 serial, 1 parallel, 2 EIDE, floppy CMedia 8738 CT-6ATA2 Item Form Factor CPU Speeds (MHz) Chipset Bus Memory (Mb) I/O Video Description ATX Pentium II VIA Apollo Pro Plus 4 PCI/2 ISA 768 Mb 2 EIDE, floppy, USB Notes Slot 1 1 shared UDMA/66 3 DIMM sockets AGP Notes Socket 370 133 FSB UDMA 66 3 DIMM sockets AGP C CT-6ATA4 Item Form Factor CPU Chipset Bus Memory (Mb) Cache (K) I/O Video Description ATX Pentium III Via Apollo 5 PCI/1 ISA/1 AMR 768 Mb Notes Slot 1 1 shared UDMA/66 3 DIMM sockets 2 EIDE, floppy, USB AGP CT-6BDU Essentially jumperless except for clock frequency and keyboard power-on. Item Description Notes Form Factor ATX CPU Dual Pentium II Slot 1 Speeds (MHz) 450 Chipset 440BX Bus 4 PCI/3 ISA 112 MHz bus speed Memory (Mb) 4 DIMM sockets I/O 2 EIDE, floppy, USB Ultra 2 SCSI with RAIDport III on board Video AGP CT-6BTA3 Item Form Factor CPU Chipset Bus Memory (Mb) Cache (K) I/O Video Comments Description ATX Pentium II 440BX 4 PCI/2 ISA 1 Gb Notes Slot 1 1 shared 4 DIMM sockets 2 EIDE, floppy, USB AGP CT 6ATA2 is cheaper with faster EIDE CT-6BTM Essentially jumperless except for clock frequency and keyboard power-on. Item Description Notes Form Factor ATX CPU Pentium III/Celeron Slot 1 Speeds (MHz) 800/533 Chipset 440BX BIOS Award 4.51PG Bus 4 PCI/3 ISA 1 shared. 133 MHz bus speed Memory (Mb) 1 Gb 4 DIMM sockets I/O 2 EIDE, floppy, USB Video AGP Performance Slow-Good – similar to Soyo SY-6BA+ CT-6ESA2 Essentially jumperless except for clock frequency and keyboard power-on. Item Form Factor CPU Description ATX Pentium II/Celeron Notes Slot 1 161 162 The PC Engineer’s Reference Book – Vol 2: Motherboards Item Speeds (MHz) Chipset Bus Memory (Mb) Cache (K) I/O Video Audio Description 333 440EX 2 PCI/2 ISA 256 Notes 1 shared. 83 MHz bus speed 2 DIMM sockets 2 EIDE, floppy, USB AGP Stereo audio CT-6ESV Essentially jumperless except for clock frequency and keyboard power-on. Item Form Factor CPU Speeds (MHz) Chipset Bus Memory (Mb) Cache (K) I/O Video Audio Description ATX Pentium II/Celeron 333 440EX 2 PCI/2 ISA 256 Notes Slot 1 1 shared. 83 MHz bus speed 2 DIMM sockets 2 EIDE, floppy, USB Rage II-C 4 Mb Stereo audio AGP CT-6LTM Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) I/O Video Performance Comments Description ATX Pentium II 375 MHz 440 LX Notes 4 PCI/3 ISA 384 Mb SDRAM 768 Mb EDO 2 EIDE, floppy 1 each shared 3 DIMM sockets Slot 1 AGP Fast Almost identical to QDI Legend. Jumperless. CT-6OJV2 Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) I/O Video Audio Description ATX Pentium III/Celeron 1000/733 Intel 815E Award 6 PCI 1 CNR 512 Mb PS/2 Mouse and Keyboard, 2 USB, 2 serial, 1 parallel, 2 EIDE, floppy Intel 815 GMCH CMedia 8738 CT-6WIV Item Form Factor CPU Chipset Description Micro-ATX Celeron Intel 810 Notes Socket 370 Notes Socket 370 150 FSB UDMA 100 3 DIMM sockets AGP C Item Bus Memory (Mb) I/O Description 3 PCI 512 Mb 2 EIDE, floppy Notes UDMA/66 2 DIMM sockets CT-6WSV2 Item Form Factor CPU Chipset Bus Memory (Mb) I/O Video Description Micro-ATX Celeron/PII Intel 810E 3 PCI 512 Mb 2 EIDE, floppy, USB Notes Slot1 UDMA/66 2 DIMM sockets Embedded 3D AGP Chaplet Chicony Award BIOS ID The last two numbers of the BIOS part number. Code 1 1-08 4-01 Motherboard CH 471B C471 CH 881A Code H-00 H-02 HC Motherboard CH 880C CH 890A CH 880C CH-471A Jumper JP7 JP8,12,13 JP1,JP2-5 14,16 JP 32,34, 35 JP40 JP44 JP47 Position 1-2 2-3 JP8 Out Out In Out In JP1 1-2,3-4 2-3,4-5 1-2,3-4 2-3,4-5 1-2,3-4 2-3,4-5 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 JP12 Out Out In In Out JP2 2-3 1-2 2-3 1-2 2-3 1-2 JP13 Out In In In Out JP3 1-2 1-2 2-3 2-3 2-3 2-3 JP4 1-2 2-3 2-3 2-3 2-3 2-3 JP5 1-2 1-2 1-2 2-3 2-3 2-3 JP14 1-2 1-2 1-2 1-2 2-3 2-3 JP16 1-2 1-2 2-3 2-3 2-3 2-3 Function Normal Clear CMOS CPU Speed 20 MHz 25 MHz 33 MHz 40 MHz 50 MHz Cache Size 32K 64K 128K 256K 512K 1 Mb 5v CPU (P24C/T) 3.3v CPU Normal Address Strobe Delay VESA 0 wait VESA 1 wait VESA <= 33 MHz VESA >33 MHz 163 164 The PC Engineer’s Reference Book – Vol 2: Motherboards JP SX DX P24T SX-SL DX”-SL DX-SL M6 20 2-3 1-2 1-2 2-3 1-2 1-2 2-3 21 Out In In Out In In Out 29 2-3 2-3 1-2 2-3 2-3 2-3 2-3 31 Out 3-4 2-3 Out 3-4 3-4 Out Cyrix DX/2 1-2 In 2-3 3-4 P24D 1-2 In 1-2 3-4 P24C AMDX 1-2 1-2 In In 2-3 2-3 3-4 1-2 25 Out Out 3-4 3-4 3-4 3-4 2-3 4-5 2-3 23 Out Out Out 1-2 1-2 1-2 Out 24 Out Out 1-2 4-5 4-5 4-5 2-3 11 2-3 2-3 1-2 2-3 2-3 2-3 1-2 10 1-2 1-2 1-2 1-2 1-2 1-2 2-3 30 Out Out 1-2 Out Out Out 2-3 33 Out Out 1-2 Out Out Out 2-3 36 Out Out 1-2 1-2 1-2 1-2 1-2 28 Out Out Out Out Out Out Out 27 Out Out Out Out Out Out Out 2-3 1-2 2-3 2-3 2-3 1-2 Out Out 2-3 26 Out Out 2-3 2-3 2-3 2-3 1-2 3-4 1-2 3-4 2-3 1-2 3-4 3-4 Out 4-5 2-3 1-2 Out Out 1-2 In In 1-2 Out 2-3 Out 4-5 Out 2-3 2-3 1-2 1-2 Out 3-4 Out Out 1-2 2-3 Out Out Out Out Out Clevo Commate www.tcommate.com.tw Compaq www.compaq.com DeskPro Jumper 1 2 3-4 Position Off Off 3 On Off Off On 4 Off Off On On 5,6 5 Off Off On On 6 Off On Off On 7 On Off On 8 Function Always Off 8 MHz Maths copro installed Memory (Kb) 128 256 512 640 Video adapter Mono CGA 40 x 25 CGA 80 x 25 With own BIOS 1 floppy 2 floppies Always On DeskPro v2/8MHz Jumper 1 2,3 4,5 Position Off On 2 On On Off Off 3 On Off On Off 4 On On Off Off 5 On Off On Off Function 256K X 1 DRAM 64K X 1 DRAM Memory (Kb) Both 0-256 0-512 All memory Extended Memory None 1.5 Mb Bank 2-1; 256K DRAM 1-2 Mb Bank 2/3; 256K DRAM 64K DRAMs C Jumper Position 6 On Off Off On Off 7 8 165 Function 64K DRAMs 6 MHz only 6 or 8 MHz Always Off Compaq or EGA monitor Non-Compaq monitor DeskPro 286 Version 1 Switch 1 2 Position Off On Off* 3 On Off Off On 3,4 5,6 5 On Off On Off On Off 7 4 Off Off On On 6 On On Off Off 8 Function Always Off 8 MHz 8087-2 not installed Coprocessor installed Memory (Kb) 128 256 512 640 Display 80 x 25 EGA, or RGBI 40 x 25 COMPAQ VDU* 80 x 25 COMPAQ VDU 720 x 350 Monochrome 1 floppy 2 floppies Always On *Rev F or later ROM System Memory Board Jumpers are etched on the solder side (bottom) of the board. Cut the conductor to disconnect any unwanted jumpers, then solder the wire(s) to jumpers as desired. Modifying these jumpers invalidates the warranty. ROM Set 1 Jumper E7-E8 E10-E11 E8-E9 E10-E11 E7-E8 E11-E12 E8-E9 E11-E12 E7-E8 E10-E11 E8-E9 E10-E11 E7-E8 E11-E12 E8-E9 E11-E12 E13-E14 E13-E14 E13-E14 E13-E14 E14-E15 E14-E15 E14-E15 E14-E15 Function 8K x 8, Static ROM, 250 ns 16K x 8, Static ROM, 250 ns* Invalid 32K x 8, Static ROM, 250 ns 8K x 8, Dynamic ROM, 150 ns 16K x 8, Dynamic ROM, 150 ns Invalid 32K x 8, Dynamic ROM, 150 ns ROM Set 2 Jumper E16-E17 E17-E18 E16-E17 E17-E18 E16-E17 E17-E18 E16-E17 E17-E18 E19-E20 E19-E20 E20-E21 E20-E21 E19-E20 E19-E20 E20-E21 E20-E21 E22-E23 E22-E23 E22-E23 E22-E23 E23-E24 E23-E24 E23-E24 E23-E24 Function 8K x 8, Static ROM, 250 ns 16K x 8, Static ROM, 250 ns Invalid 32K x 8, Static ROM, 250 ns 8K x 8, Dynamic ROM, 150 ns 16K x 8, Dynamic ROM, 150 ns Invalid 32K x 8, Dynamic ROM, 150 ns* 166 The PC Engineer’s Reference Book – Vol 2: Motherboards Switch ED ES Position 1-2 2-3* Function Mono display Compaq display, third party extended graphics, third party RGB adapters. 1-2* 2-3 If both Mono and Compaq video boards are installed, the Mono display is active during power on if pin is set on 1-2. I/O Speed/RAM 6 MHz/8 MHz (fast) 6 MHz/6 MHz (common). For system ROM E and F, between COMMON and FAST. Rev G system ROM selects between COMMON and HIGH. Rev H system ROM selects between FAST and HIGH for other 80286-based products. If the speed select jumper is changed to 6 MHz (2-3), the system does not respOnd to speed change requests from the keyboard. Reserved Reserved 7 J108,9,10,11,12,13 DeskPro 286 Version 2 Assy 000361 Switch 1 2,3 4,5 6 7 8 Position On Off 2 On On Off Off 4 Off On On Off Off Off* On 3 On Off On Off 5 Off On Off On Off On Off J108,9,10,11,12,13,17 Function 64K x 1 DRAM 256K x 1 DRAM Base Memory Disable RAM and ROM 256K 512K Enable all base Memory Memory 64K x 1 DRAM 256K x 1 DRAM. No extended Enable bank 2 for 1-1½ Mb Enable bank 2 & 3 for 1-2 Mb Enable all banks for 1-2½ Mb 8/6 MHz 6 MHz Reserved COMPAQ VDU, ECG, EGA or RGBI Mono Reserved DeskPro 286 12 MHz Assy 000555 &.000700 Switch 1 2,3 4,5 6 Position On Off 2 On On Off Off 4 Off On On Off Off Off* On 3 On Off On Off 5 Off On Off On Off Function 64K x 1 DRAM 256K x 1 DRAM Base Memory Disable RAM and ROM 256K 512K Enable all base Memory Memory 64K x 1 DRAM 256K x 1 DRAM. No extended Enable bank 2 for 1-1½ Mb Enable bank 2 & 3 for 1-2 Mb Enable all banks for 1-2½ Mb 12/8 MHz software select 8 MHz C Switch 7 8 Position On Off 1-2 2-3 E5 J108,9,10,11,12,13,17 167 Function Reserved COMPAQ VDU, ECG, EGA or RGBI Mono Disable processor slowdown with diskette access Enable processor slowdown with diskette access (allows time dependent copy protection schemes to work properly) Reserved System Memory Board Version 2 and 3. Jumpers are etched on the solder side (bottom) of the board. Cut the conductor to disconnect any unwanted jumpers, then solder the wire(s) to jumpers as desired. Modifying these jumpers invalidates the warranty. ROM Set 1 E2 Jumper 1-2 4-5 2-3 4-5 1-2 5-6 2-3 5-6 1-2 4-5 2-3 4-5 1-2 5-6 2-3 5-6 7-8 7-8 7-8 7-8 8-9 8-9 8-9 8-9 Function 8K x 8, Static ROM, 250 ns 16K x 8, Static ROM, 250 ns* Invalid 32K x 8, Static ROM, 250 ns 8K x 8, Dynamic ROM, 150 ns 16K x 8, Dynamic ROM, 150 ns Invalid 32K x 8, Dynamic ROM, 150 ns ROM Set 2 E3 Jumper 1-2 4-5 2-3 4-5 1-2 5-6 2-3 5-6 1-2 4-5 2-3 4-5 1-2 5-6 2-3 5-6 7-8 7-8 7-8 7-8 8-9 8-9 8-9 8-9 Function 8K x 8, Static ROM, 250 ns 16K x 8, Static ROM, 250 ns* Invalid 32K x 8, Static ROM, 250 ns 8K x 8, Dynamic ROM, 150 ns 16K x 8, Dynamic ROM, 150 ns Invalid 32K x 8, Dynamic ROM, 150 ns* DeskPro 286e Switchbank 1 Switch 1,2 Position 1 On On Off Off 3 Off* On On* Off 4 5 6 On Off 2 On Off On Off Function Base Memory 640K 512K Reserved 256K Option ROM disable Option ROM enable Auto power on speed High power on speed Reserved All display adapters except Mono Mono 168 The PC Engineer’s Reference Book – Vol 2: Motherboards Switchbank 2 Switch 1 Position On Off* On Off* On Off* 4 Off* On Off On 5 Off* Off On On 6,7 6 On* Off Off On 7 Off* On Off On 8 E4 E11 Off* 1-2 1-2 2-3* 2 3 4,5 Function Secondary address (37X, 17X) FD/HD Primary address (3FX, 1FX) FD/HD Disable power on password Enable power on password Disable HD controller Enable HD controller Serial Port COM1 primary address 3FX, IRQ4 COM2 secondary address 2FX, IRQ3 Reserved Disable Parallel Port LPT1 primary address 3BX LPT1/2 secondary address 37X Reserved Disable Enable video Enable IRQ12 (PS/2 mouse) 8 MHz coprocessor 12 MHz coprocessor Memory Jumpers Each jumper represents one bank - a maximum of four can be expanded Memory. With modules in locations A and B, the memory expansion board must be configured as extended Memory. Board Module A Module B E1-E3 E4-E6 E7-E9 Ext Exp Total 1 Mb 1-2 Ext 2-3* 2-3* 1 Mb 2 Mb 2-3 Exp 2-3* 2-3* 1 Mb 1 Mb 2 Mb 1 Mb 1 Mb 1-2 Ext 1-2 Ext 2-3* 2 Mb 3 Mb 1-2 Ext 2-3 Exp 2-3* 1 Mb 1 Mb 3 Mb 2-3 Exp 2-3 Exp 2-3* 2 Mb 2 Mb 3 Mb 1 Mb 1 Mb 1 Mb 1-2 Ext 1-2 Ext 1-2 Ext 3 Mb 4 Mb 1-2 Ext 1-2 Ext 2-3 Exp 2 Mb 1 Mb 4 Mb 1-2 Ext 2-3 Exp 2-3 Exp 1 Mb 2 Mb 4 Mb 1 Mb 4 Mb 1-2 Ext 1-2 Ext 2-3* 5 Mb 6 Mb 1-2 Ext 2-3 Exp 2-3* 1 Mb 4 Mb 6 Mb 2-3 Exp 2-3 Exp 2-3* 1 Mb 6 Mb 6 Mb 1 Mb 1 Mb 4 Mb 1-2 Ext 1-2 Ext 1-2 Ext 6 Mb 7 Mb 1-2 Ext 1-2 Ext 2-3 Exp 2 Mb 4 Mb 7 Mb 1-2 Ext 2-3 Exp 2-3 Exp 1 Mb 5 Mb 7 Mb 1 Mb 4 Mb 1 Mb 1-2 Ext 1-2 Ext 1-2 Ext 6 Mb 7 Mb 1-2 Ext 1-2 Ext 2-3 Exp 5 Mb 1 Mb 7 Mb 1-2 Ext 2-3 Exp 2-3 Exp 1 Mb 5 Mb 7 Mb 1 Mb 4 Mb 4 Mb 1-2 Ext 1-2 Ext 1-2 Ext 9 Mb 10 Mb 1-2 Ext 1-2 Ext 2-3 Exp 5 Mb 4 Mb 10 Mb 1-2 Ext 2-3 Exp 2-3 Exp 1 Mb 8 Mb 10 Mb 4 Mb 1-2 Ext 2-3* 2-3* 4 Mb 5 Mb 2-3 Exp 2-3* 2-3* 4 Mb 5 Mb 4 Mb 1 Mb 1-2 Ext 1-2 Ext 2-3* 5 Mb 6 Mb 1-2 Ext 2-3 Exp 2-3* 4 Mb 1 Mb 6 Mb 2-3 Exp 2-3 Exp 2-3* 5 Mb 6 Mb 4 Mb 1 Mb 1 Mb 1-2 Ext 1-2 Ext 1-2 Ext 6 Mb 7 Mb 1-2 Ext 1-2 Ext 2-3 Exp 5 Mb 1 Mb 7 Mb 1-2 Ext 2-3 Exp 2-3 Exp 4 Mb 2 Mb 7 Mb 4 Mb 4 Mb 1-2 Ext 1-2 Ext 2-3* 8 Mb 9 Mb 1-2 Ext 2-3 Exp 2-3* 4 Mb 4 Mb 9 Mb 2-3 Exp 2-3 Exp 2-3* 8 Mb 9 Mb 4 Mb 1 Mb 4 Mb 1-2 Ext 1-2 Ext 1-2 Ext 9 Mb 10 Mb 1-2 Ext 1-2 Ext 2-3 Exp 5 Mb 4 Mb 10 Mb C Board Module A Module B 4 Mb 4 Mb 1 Mb 4 Mb 4 Mb 4 Mb E1-E3 1-2 Ext 1-2 Ext 1-2 Ext 1-2 Ext 1-2 Ext 1-2 Ext 1-2 Ext E4-E6 2-3 Exp 1-2 Ext 1-2 Ext 2-3 Exp 1-2 Ext 1-2 Ext 2-3 Exp E7-E9 2-3 Exp 1-2 Ext 2-3 Exp 2-3 Exp 1-2 Ext 2-3 Exp 2-3 Exp Ext 4 Mb 9 Mb 8 Mb 4 Mb 12 Mb 8 Mb 4 Mb DeskPro 286N Any jumpers are for factory testing purposes only Jumper Position Function 1 On* Enable video 2 On* Enable ROM-resident setup 3 On* Enable external boot 4 On* Enable power-On password 5 On* 8 MHz coprocessor (or not installed) Off 12 MHz coprocessor Reserved in 386sx systems 6 On* Enable diskette write E1 1-2 Full fan speed On backplane 2-3 Automatic (slower, quieter speed until temp reaches 85o F) DeskPro 386 Version 1 Assy 000401 Jumper 1 2 3 4 5 6 Position On* On On Off* On* Off Off* On Off Function Reserved Coprocessor installed 4 MHz coprocessor 8 MHz coprocessor CPU boot 16 MHz except when accessing floppy, then 8 MHz CPU boot 16 MHz always Reserved Compaq VDU, ECG, compatible EGA, RGBI, or VGC Third party Monochrome Position On* Off* On Off* On* Off Off* On Off On* Off On Function Reserved Coprocessor not installed 80287-3/6 4MHz coprocessor 80287-8 8MHz coprocessor CPU boot 16 MHz except when accessing floppy, then 8 MHz CPU boot 16 MHz always Reserved Compaq VDU, ECG, compatible EGA, RGBI, or VGC Third party Monochrome 80287-3/6/8 coprocessor or none installed 80387-16 coprocessor Reserved Version 2 Assy 000558 Jumper 1 2 3 4 5 6 7 8 Exp 5 Mb 1 Mb 5 Mb 4 Mb 8 Mb Total 10 Mb 10 Mb 10 Mb 10 Mb 13 Mb 13 Mb 13 Mb 169 170 The PC Engineer’s Reference Book – Vol 2: Motherboards DeskPro 386N As for DeskPro 286N DeskPro 386/20 SW1 Assy 000749 Jumper 1 2 3 4 Position On* Off* Off* On* Off Off* On Off 7 On Off Off 5 6 7,8 8 On On Off Function Reserved – always On Coprocessor not installed Reserved – always Off Auto power on speed High power on speed Reserved – always Off COMPAQ Colour or Dual Mode monitor or CGA installed Third party Monochrome Base Memory 640K* 512K 256K 8 On On Off Function Reserved – always On Coprocessor not installed 0-12 Mb cacheable memory 0-16 Mb cacheable memory Auto power on speed High power on speed Reserved – always Off COMPAQ Colour or Dual Mode monitor or CGA installed Third party Monochrome Base Memory 640K* 512K 256K DeskPro 386/25 SW1 Assy 000944 or 001069 Jumper 1 2 3 Position On* Off* On Off* On* Off Off* On Off 7 On Off Off 4 5 6 7,8 If the jumper at E14 near the system memory board is moved from its default position (closest to the system PCB) toward the center of the board, the system clock rate is changed from 25 MHz to 24, for expansion boards that encounter difficulties running at the higher clock rate. DeskPro 386/20e Switchbank 1 Assy 001625 Switch 1 2 E4 E10 Position On* On Off* 1-2 2-3 1-2 2-3 Function Enable VGA Disable power on password Enable power on password Disable IRQ12 (e.g. allows mouse to be used) Enable IRQ12 8-bit VGA 16-bit VGA C Assy 000935, 001196, and 001316 Jumper 1 2 Position On* On Off* On Off* On* Off Off* On Off 7 Off Off On On 3 4 5 6 7,8 8 Off On Off On Function Enable fail safe timer 80387 installed 80387 not installed, or Weitek installed 12-16 Mb area not cached 12-16 Mb area cached Auto power on speed (20 MHz, 8 MHz accessing floppy) High power on speed (20 MHz) Reserved – always Off Compaq Colour or Dual Mode monitor or CGA Third party Monochrome Base Memory 256K Reserved 512 640* Switchbank 2 Switch 1 Position On Off* On Off* On Off* 4 Off* On Off On 5 Off* Off On On 6,7 6 On* Off Off On 7 Off* On Off On 8 Off* 2 3 4,5 Function Secondary address (37X, 17X) FD/HD Primary address (3FX, 1FX) FD/HD Disable power on password Enable power on password Disable HD controller Enable HD controller Serial Port COM1 primary address 3FX, IRQ4 COM2 secondary address 2FX, IRQ3 Reserved Disable Parallel Port LPT1 primary address 3BX LPT1/2 secondary address 37X Reserved Disable Enable video 386/25e Switch 1 2 Position On* On Off* Function Enable VGA Disable power on password Enable power on password DeskPro 386s/20 Assy 002040 Jumper 1 2 3 4 5 6 E1 Backplane Position On* On* On* On* On* 1-2 2-3 Function Enable video Enable ROM-resident setup Enable external boot Enable power-On password Reserved Enable diskette write Full fan speed Automatic (slower, quieter speed until temp reaches 85o F) 171 172 The PC Engineer’s Reference Book – Vol 2: Motherboards Assy 001421 Switch 1 2 Position On* On Off* Function Enable VGA Disable power on password Enable power on password DeskPro 386s SW1 Assy 002116 Jumper 1 2 3 4 5 6 E1 On backplane Position On* On* On* On* On* 1-2 2-3 Function Enable video Enable ROM-resident setup Enable external boot Enable power-On password Reserved Enable diskette write Full fan speed Automatic (slower, quieter speed until temp reaches 85o F) Assy 000954, 001145, 001148, 001157, and 001644 Jumper 1 2 3 4 5 6 Position On* On On Off* Off* On Off Function Enable fail safe timer 80387SX installed Reserved Auto power on speed (16 MHz, 8 MHz accessing floppy) High power on speed (16 MHz) Reserved – always Off COMPAQ Colour or Dual Mode monitor or CGA Third party Monochrome SW2 Assy 000954, 001145, 001148, 001157, and 001644 Switch 1 Position On Off* On Off* On Off* 4 Off* On Off On 5 Off* Off On On 6,7 6 On* Off Off On 7 Off* On Off On 8 Off* 2 3 4,5 Function Secondary address (37X, 17X) FD/HD Primary address (3FX, 1FX) FD/HD Disable power on password Enable power on password Disable HD controller Enable HD controller Serial Port COM1 primary address 3FX, IRQ4 COM2 secondary address 2FX, IRQ3 Reserved Disable Parallel Port LPT1 primary address 3BX LPT1/2 secondary address 37X Reserved Disable Enable video C SW3 Assy 000954, 001145, 001148, 001157, and 001644 Switch 1,2 Position 1 Off Off On On 2 Off On Off On 3,4,5,6 3 On On On On Off On On Off On Off 4 On On On On On Off Off On Off On 5 On On Off Off On Off On Off Off Off 6 On Off On Off Off On On On Off Off Function Base Memory 256K Reserved 512 640* Mem Mod A 1 Mb 1 Mb 1 Mb 4 Mb 1 Mb 1 Mb 4 Mb 1 Mb 4 Mb 1Mb 1 Mb 4 Mb 1 Mb 4 Mb 4 Mb 4 Mb Jumper Settings Assy Nos. 000954, 001145, 001148, 001157, and 001644 Switch E2 E3 E4 Position On On 1-2 2-3 Function Reserved Reserved Disable IRQ12 (e.g. allows mouse to be used) Enable IRQ12 DeskPro 386/25e Switch 1 2 Position On* On Off* Function Enable VGA Disable power on password Enable power on password DeskPro 386/33(L) Switch 1 2 Position On* On Off* Function Enable VGA Disable power on password Enable power on password Assy 001987 Switch 1 2 3 4 5 6 Position Off* On Off* On Off* On Off* On Off* Function Reserved Disable lock EISA configuration Read only diskette write Read/write diskette write Enable boot from diskette Disable boot from diskette (override EISA configuration) Enable erase power on password Disable erase power on password Enable erase EISA configuration Disable erase EISA configuration Mod B 1Mb 4 Mb 4 Mb 4 Mb Total 1Mb* 2 Mb 3 Mb 4 Mb 5 Mb 6 Mb 7 Mb 9 Mb 10 Mb 13 Mb 173 174 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumpers Jumper E1 E1(L) E2 E3 Position 1-2 1-2 2-3 1-2 2-3* 2-3* Function Enable maintenance mode Erase configuration Standard Disable power on password Enable power on password Enable VGA DeskPro 486/25 Jumper E1 E2 E3 Position 1-2 2-3* 1-2 2-3* 2-3* Function Enable maintenance mode Standard mode Disable power on password Enable power on password Enable VGA DeskPro 486/33L Jumper E1 E2 E3 Position 1-2 2-3* 1-2 2-3* 2-3* Function Erase standard configuration Standard configuration Disable power on password Enable power on password Enable VGA DeskPro 486/50L Switch 1 2 3 4 5 6 Position Off* Off* On* Off* Off* Function Reserved Disable lock EISA configuration Diskette write enabled Enable boot from diskette Disable power on password Disable override EISA configuration DeskPro 486/33M Assy 002319/002297 Switch 1 2 6 Position On* Off* On* Function Reserved – always On Reserved – always Off Reserved – always On DeskPro 486s/16M Switch 1 2 6 Position On* Off* On* Function Reserved – always On Reserved – always Off Reserved – always On DeskPro 486s/25M Switch 1 2 6 Position On* Off* On* Function Reserved – always On Reserved – always Off Reserved – always On C Deskpro 486s/25 Assy 002316/002302) 486s/16 Processor Board Assy 002313/002300 Switch 1 2 6 Position Off* Off* Off* Function Reserved – always Off 487 upgrade not installed** 487 upgrade not installed** ** or 486 or 486/DX2 DeskPro 486/66 Assy 002431 Switch 1 2 6 Position On* Off* On* Function Reserved Reserved Reserved DeskPro/I SW500 Switch 1,2,3,4 Position 1 Off Off Off Off On On On On Off Off 2 On On Off On Off Off Off Off On On 3 Off Off Off On On On On On On On Function Processor 386-25 386-33 486SX 487SX 486DX-25 486DX-33 486DX2/50 486DX2/66* 50 MHz overdrive 66 MHz overdrive 4 On Off On On On Off On Off On Off SW501 Omitted on later models. Switch 1,2,3,4,5,6 Position 1 Off On On On On On On 2 Off On On On On On On 3 Off On On On On On On 4 On Off Off Off Off Off Off SW502 System Maintenance Switch 1 2 3 4 Position Off* Off* Off* Off* Function Enable video Disable lock setup (allows changes) Diskette write enabled (e.g. read/write) Reserved – always Off 5 On Off Off Off Off Off Off 6 On Off Off Off Off Off Off Function Processor 386 486SX 487SX 486DX 486DX2 50 MHz overdrive 66 MHz overdrive* 175 176 The PC Engineer’s Reference Book – Vol 2: Motherboards Switch 5 6 Position On Off* Off* Function Clear power-On and administrator password Allow power on and administrator password Reserved – always Off Position 1-2 1-2 1-2 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 Function IRQ 11 IRQ 7 IRQ 10 Capture DMA channel 0 Playback Capture DMA channel 1 Playback Capture DMA channel 3 Playback 608h-60bh 534h-537h* Audio system enabled Audio Switch E1 E3 E6 E4 E7 E9 E8 6 DeskPro/M Switch 1 2 3 4 Off* Off* On Off* On Off* On Off* Function Reserved Disable lock EISA configuration Diskette write enabled Override EISA Configuration Diskette Boot Don’t override Clear power on password Don’t clear Erase EISA configuration Don’t erase Switch P2-7 Position P2 1-2 1-2 1-2 2-3 2-3 2-3 2-3 2-3 2-3 2-3 P3 1-2 1-2 1-2 2-3 2-3 2-3 2-3 2-3 2-3 2-3 Switch P7 Position 2-3 1-2 2-3* 1-2 2-3* 1-2* 2-3 Off Function 33/66 MHz 25/50 MHz Pentium ODP in Write Back mode Pentium ODP in Write Through mode Enable Onboard Video Printer on IRQ 7 Printer on IRQ 5 Clear password 5 6 Position Processor P1 P5 P8 P9 P4 3-4 3-4 3-4 1-2 1-2 1-2 1-2 2-3 1-2 2-3 P6 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 2-3 P7 1-2 2-3 1-2 1-2 2-3 1-2 2-3 Function Processor 486SX-25 486SX-33 487SX-25 486DX-25 486DX-33 486DX2/50 486DX2/66* ODP ODPR Pentium ODP C DeskPro XE SW500 Processor Switch S1-4 Position S1 Off On On On Off On On On Off Off S2 Off Off Off Off On Off Off Off On On S3 Off On On On On On On On On On S4 Off On Off Off On Off On Off Off On Function Processor 486SX-33 486DX2/50 486DX2/66 486DX4/100 487SX/25 486DX-33 486DX2/50 486DX2/66* 33/66/100 MHz overdrive 25/50/75 MHz overdrive (5v) SW502 System Maintenance Switch S1 S2 S3 S4 S5 S6 Position Off* Off* Off* Off* On Off* On Off* Function Enable video Disable lock setup (allows changes) Diskette write disabled (e.g. read only) Reserved – always Off Clear power-On and administrator password Allow power on and administrator password Flash ROM can be updated Prevents Flash ROM updates Deskpro/XL SW1 Pentium Based Systems Switch S1-2 Position S1 On Off On Off S2 Off Off On On Function Processor Pentium/75 MHz, 50 MHz external, 75 internal Pentium/90 MHz, 60 MHz external, 90 internal Pentium/100 MHz, 50 MHz external, 100 internal Reserved 486 Based Systems Switch S1-2 Position S1 On On On Off S2 On Off Off Off S3 Off Off Off On Jumpers Jumper E6 E5 Position 1-2 1-2 2-3 Function Password Enable Internal battery External battery S4 Off Off Off Off Function Processor 486DX2/50 486DX2/66 486DX4/100 Reserved 177 178 The PC Engineer’s Reference Book – Vol 2: Motherboards Switches Switch S1 S2 S3 S4 S5 S6 Position On Off* On Off* Off* On Off* On Off* On Off* Function Flash ROM can be updated Prevents Flash ROM updates Locks EISA Configuration Allows changes to EISA Diskette write enabled (e.g. read/write) Override EISA config.diskette boot control Maintains EISA config.diskette boot control Clear power-On and administrator password Allow power on and administrator password Erases current EISA configuration Maintains current EISA configuration Portable 286 Jumper ED ES EM E1-3 Position 1-2 2-3* 1-2* 2-3 Function Mono COMPAQ Colour, Dual Mode monitor or CGA CPU boot 8 MHz CPU boot 6 MHz 1-2 2-3 If changed to 6 MHz, the system will not respond to speed change requests from the keyboard. Reserved 128K, 256 K or 512K** 640 Kbytes ** For 512 K, PAL (PN 105045-001) must be in U2 if not already present. Diskette/Tape Controller Board Version 1 contains jumpers J1, J2, J3, and J4. Version 2 contains Switch SW1 and shunt jumpers J1 and J2, which replace jumpers J1-J4. Jumper Position Function J1 1-2 Secondary address 370h 2-3* Primary address 3F0h J2 1-2* Serial port as COM1 2-3 Serial port as COM2 J3 J4 2-3* 1-2 2-3 See also J4 Parallel port enabled Serial port IRQ4 Serial port IRQ3 See also J2 Portable 386 Jumper E1,2 E3,4,8,9 Position E1 2-3* 2-3 1-2 2-3 E3 2-3* E2 1-2* 2-3 E4 1-2* E3,4,8,9 E3 2-3 E4 1-2 E3,4,8,9 E3 2-3 E4 2-3 E8 1-2* 3-4* E8 1-3 2-4 E8 1-2 E9 1-3* 2-4* E9 1-2 3-4 E9 1-3 Function Parallel interface LPT1 LPT2 LPT3 Disable Serial as COM1 (3FX, IRQ4), with modem or 2nd as COM2 (2FX,IRQ3) Serial as COM2 (2FX, IRQ3), with modem or 1st as COM1 (3FX,IRQ4) Serial as COM1 (3FX, IRQ4), with modem or 2nd disabled. C Jumper Position Function E3,4,8,9 E3 1-2 E4 2-3 E3,4,8,9 E3 2-3 E4 2-3 E3,4,8,9 E3 1-2 E4 2-3 E3,4,8,9 E3 1-2 E4 1-2 E5 E6 1-2* 1-2 2-3* 1-2 2-3 1-2 E13 1-2* 2-3 2-3 E15 1-2* 2-3 1-2 2-3 1-2 2-3 2-3 1-2 2-3* 1-2 1-2* 2-3 2-3 1-2* 2-3 1-2 1-2 E7 E12 E13,14 E15-17 E18 E19 E20 E21 E22 E23 E24 E25 3-4 E8 1-2 3-4 E8 1-3 2-4 E8 1-3 2-4 E8 1-2 2-4 E14 1-2* 2-3 E16 1-2* 1-2 2-3 2-3 2-3 2-3 E17 1-2* 1-2 1-2 1-2 2-3 2-3 2-4 E9 1-2 3-4 E9 1-2 3-4 E9 1-3 2-4 E9 1-3 2-4 Serial as COM2 (2FX, IRQ3), with modem or 1st disabled. Modem or 2nd serial as COM1 (3FX,IRQ4), COM2 disabled Modem or 2nd as COM2 (2FX,IRQ3), COM1 disabled Both serial disabled Floppy enabled Floppy secondary address Floppy primary address Primary IRQ 7 Alternative IRQ5 Reserved Base Memory 640K 512K 256K Total 32-bit memory 1 Mb 2 Mb 3 Mb 4 Mb 6 Mb 10 Mb Reserved Reserved 387 not installed or 3167 387 installed CPU boot speed 20 MHz, 8 accessing floppy CPU boot speed always 20 MHz Reserved Plasma display in CGA mode Plasma display in Mono mode Reserved Reserved Portable 486c Switches Switch SW1 SW2 SW3 SW4 SW5 S6 Position Off* On Off* Off* On Off* On Off* On Off* Function Enable video Locks EISA Configuration Allows changes to EISA Diskette write enabled (e.g. read/write) Override EISA config.diskette boot control Maintains EISA config.diskette boot control Clear power-On and administrator password Allow power on and administrator password Erases CMOS Normal ops 179 180 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumpers Jumper ED ES EM MS1,2 MS3 Position 1-2 2-3* 1-2* 2-3 Function 3rd party Mono COMPAQ Colour, Dual Mode monitor or CGA CPU boot 8 MHz CPU boot 6 MHz MS1 G V G V V G* If changed to 6 MHz, the system will not respOnd to speed change requests from the keyboard. Reserved System board memory Disable 256K 512K 640K 1 Mb memory 1.5 Mb memory MS2 G G V V Portable III Jumpers Jumper E1 E2 E3,4 Position 1-2 2-3* E3 1-2* E4 1-2* E5 E16 E5,16 E5,16 E7 E8 E10 E12 E17 1-1 2-2 1-2 1-2 1-1* 2-2* 2-3* 1-2,4-5* 2-3,5-6 1-2* 2-3 2-3* 2-3,4-5* 2-3,5-6 1-2,4-5 1-2,5-6 2-2 Function CPU speed 12 MHz during floppy access CPU speed 8 MHz during floppy access Reserved Serial Port Enable COM1 Enable modem COM2 Enable modem COM1 Enable COM2 Serial IRQ3 Select COM2 Modem IRQ4 Select COM1 Modem IRQ3 Select COM2 Serial IRQ4 Select COM1 Enable printer FD primary address FD secondary address 16K ROM 32K ROM Disable ROM set 2 No expansion RAM Address Bank 1 (J201 and J202) Address Banks 1-2 (J201 - J204) Address Banks 1, 2 & 3 (J201 - J206) Switches Switch 1,2 S3,4 S5 S6 Position 1 On On Off Off* 3 On On* Off Off On* On Off* 2 On Off On Off* 4 On Off* On Off Function Base Memory None (and no ROM) 0-256K 0-512K 0-640K Extended Memory Reserved 640K plus 256 K modules 640K plus 1 Mb modules Reserved Enable HD 8 MHz CPU boot speed 12 MHz CPU boot speed C Switch S7 S8 Position On* Off Off* 181 Function Plasma display in colour mode Plasma display in Mono mode Reserved Plasma Display Controller Board Jumper Position 1-2 2-3 Function Primary address Secondary address Portable and Plus Version 1 Bank 1 Switch 1 2 3,4 5,6 7,8 Position Off* On* Off* 5 Off 5 On 7 On Off On Off 6 Off 6 Off 8 On On Off Off Function Reserved - always Off Copro – always On Memory - always Off Mono Compaq video* Floppies 1 floppy 2 floppies 3 floppies 4 floppies Bank 2 Switch S1-8 Position Memory 128 192 256 320 384 448 512 544 Function 1 On On On On On On On Off 2 Off On Off On Off On Off Off 3 On Off Off On On Off Off Off 4 On On On Off Off Off Off Off 5 Off Off Off Off Off Off Off Off 6 Off Off Off Off Off Off Off Off 7 Off Off Off Off Off Off Off Off 8 Off Off Off Off Off Off Off Off If ROMs in U40 (and U47) are Rev C or above, SW2 is ignored. It has been removed on Revision J or above. If Revision C ROMs or above are installed, 256K x 1 RAM chips may be used instead of 64K x 1 bit RAM chips in banks 2 and 3, but a new decoder PROM must be in socket U35. Version 2 Because all Version 2 boards contain Revision C or higher ROMs, only one switch, SW1, is installed. Bank 1 Switch 1 2 3,4 5,6 7 8 Position Off* Off On* 5 Off Off On On On Off On* 6 Off On Off On Function Reserved – always Off 8 MHz Maths copro installed Reserved – always On Video adapter Mono CGA 40 x 25 CGA 80 x 25 With own BIOS 1 floppy 2 floppies Reserved – always On 182 The PC Engineer’s Reference Book – Vol 2: Motherboards Bank 2 Switch S1-8 Position Memory 64 128 192 256 320 384 448 512 544-640 Function 1 1 1 1 1 1 1 1 1 0 2 1 0 1 0 1 0 1 0 0 3 1 1 0 0 1 1 0 0 0 4 1 1 1 1 0 0 0 0 0 5 0 0 0 0 0 0 0 0 0 6 0 0 0 0 0 0 0 0 0 7 0 0 0 0 0 0 0 0 0 8 0 0 0 0 0 0 0 0 0 Version 2 contains a shunt jumper for selecting either Banks 2 and 3 or Alternate Banks 2 and 3. To enable Banks 2 and 3, insert the shunt jumper so that pins 5-12, 6-11, 7-10, and 8-9 are connected. To enable Alternate Banks 2 and 3, try 1-16, 2-15, 3-14, and 4-13. Asynchronous Board Jumper J702 J703 U13 Position 1-2 2-3 1-2 2-3* 5-12,6-11,7-10,8-9 1-16,2-15,3-14,4-13 Function COM2 Address COM1 Address IRQ3 IRQ4 RS-232-C 20 mA current loop Presario 400 Jumper P1 P2 P3-5 P6 P7 Position 1-2 2-3* 1-2 2-3 P3 1-2 1-2 2-3 P4 1-2 1-2 2-3 1-2 2-3 P5 1-2 2-3 3-4 Function 25 MHz (50) 33 MHz (66) PQFP (Socket Not Used) PGA (Socket Used) Processor select 486SX (PQFP), 486DX, 486DX2 487SX (Overdrive) 486SX (PGA) Password erase (remove & replace) Internal modem ROM External modem ROM Presario 500 Jumper P1,2 Position P1 2-3 1-3 1-3 2-3 1-3 2-3 2-3 P2 2-3 P5 Function Processor 486DX33 486SX2/50 Overdrive 50 486DX2/50 486SX2/66 486DX2/66 Overdrive 66 CMOS and password protect (remove to clear, replace) Presario 5500 Jumper P1 P2 Position 1-2* Open A1 B1 A2 B1 A2 B2 A3 B2 Function Secure CMOS Clear CMOS CPU 1.5 x bus speed CPU 2 x bus speed C Jumper P3 Position A2 B2 A1 B2 2 3 4 4 A3 B3 A2 B3 Function CPU 2.5 x bus speed CPU 3 x bus speed 50 MHz bus speed 40 MHz bus speed 60 MHz bus speed 66 MHz bus speed 5 Presario 600 Jumper P5,6 P7 P8 P9 P10 P11 P13 Position 1-2 both 1-2 2-3 None 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 3-4 1-2 None P14 Function Enable Onboard video Nonsocketed enable Nonsocketed disable Socketed 33 MHz CPU bus 25 MHz CPU bus 486DX2, 486SX (nonsocketed), 487SX/OD 486SX (socketed) 486SX 486DX2, 487SX/OD 486DX/DX2 487SX/OD 486SX Config registers super/IO chip 26Eh/26Fh Config registers super/IO chip 398h/399h Clear CMOS Presario 800 CPU 486SX/25 486SX/33 487SX/25 486DX/25 486DX/33 486DX2/50 486DX2/66 ODP ODPR Pentium ODP Jumper P1 P8 P5 P1 1-2 1-2 1-2 2-3 2-3 2-3 2-3 2-3 2-3 2-3 Position 2-3* 1-2 1-2* 2-3 1-2 2-3* P9 Presario 700 486 based P3 1-2 1-2 1-2 2-3 2-3 2-3 2-3 2-3 2-3 2-3 P4 3-4 3-4 3-4 1-2 1-2 1-2 1-2 2-3 1-2 2-3 P6 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 2-3 Function CPU in writeback mode CPU in writethrough mode Printer on IRQ7 Printer on IRQ5 Disable video Enable video Clear CMOS P7 1-2 2-3 1-2 1-2 2-3 1-2 2-3 * * * 183 184 The PC Engineer’s Reference Book – Vol 2: Motherboards CPU 486DX-33 486SX2/50 Overdrive 50 486DX2/50 486SX2/66 486DX2/66 Overdrive 66 DX4/100 Jumper P1 P3 P4 P1 2-3 1-2 1-2 1-2 2-3 2-3 2-3 2-3 Position 1-2 2-3* 1-2* 2-3 1-2 2-3 3-4* P5 P3 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 P4 3-4 3-4 3-4 3-4 3-4 3-4 3-4 3-4 Function CPU 25 MHz (50) CPU 33 MHz (66) Writethrough L1 cache (All486/7) Writeback L1 cache (Overdrive) DX4 2.5 x clock speed DX4 2 x clock speed DX4 3 x clock speed Clear CMOS Pentium Based Jumper P3 P5 P11 Position 1-2 2-3 1-2 2-3 1-2 2-3 Function Enable password Disable password 60 MHz 50 MHz CPU core 1.5 x bus speed CPU core 2 x bus speed Presario 7100 486 Based Jumper JC1 JC2 JC3 JC4 JC5 JC6 JC7 JC8 JC9 JC10 JC11 JP16 JP26 AMD DX2/80 Open Open Open Open Open Open Open Open 2-3 1-2 2-3 3-4 Open AMD DX2/80+ 2-3 2-3 2-3 2-3 2-3 2-3 2-3 2-3 1-2 2-3 2-3 3-4 Open PentiumBased Jumper JP4 JP7 JP201 Position Open* Close 1-2 3-4 1-2,5-6 1-2 2-3* Function Enable ES1688 (sound) Disable CPU Core/Bus 75/50 MHz CPU Core/Bus 90/60 MHz CPU Core/Bus 100/66.6 MHz Discharge CMOS Normal ops AMD DX4/100 Open Open Open Open Open Open Open Open 2-3 Open 2-3 3-4 1-2 AMD DX4/100+ 2-3 2-3 2-3 2-3 2-3 2-3 2-3 Open 1-2 2-3 2-3 3-4 1-2 Cyrix DX2-V80 1-2 1-2 1-2 1-2 1-2 1-2 1-2 Open 1-2 Open 2-3 1-2 Open Pent Odrive Open 2-3 Open 2-3 Open Open 2-3 Open 1-2 Open 1-2 5-6,7-8,9-10 1-2 C Presario 900 486 based As for Presario 700 Pentium based As for Presario 700 Presario 9500 Jumper P1 P2 P3 Position Open A1-A2 B1-B2 A2-A3 B1-B2 A2-A3 B2-B3 A1-A2 B2-B3 1-2 2-3 2-4 4-5 Function Discharge CMOS CPU 1.5 x CPU 2 x CPU 2.5 x CPU 3 x CPU External Bus 50 MHz CPU External Bus 40 MHz CPU External Bus 60 MHz CPU External Bus 66 MHz ProLiant 1000 CPU 486DX2/66 Overdrive S1 On Off S2 Off On S3 On On SW2 System Maintenance Switch S1 S2 S3 S4 S5 S6 Position Off* Off* Off* On Off* On Off* On Function Enable Onboard video Enable changes in NVM Reserved – always Off Enable boot from floppy regardless of setup Floppy boot controlled by setup Enable password set in configuration Disable Clear CMOS ProLiant 1500 SW1 System Maintenance Switch 1 2 3 4 5 6 Position Off* Off* On On Off* On Off* Function Enable Onboard video Enable configuration in NVM Rack mounted chassis Off=Tower chassis* Enable boot from floppy regardless of setup Floppy boot controlled by setup Clear passwords Boot is password protected if one is set Clear CMOS 185 186 The PC Engineer’s Reference Book – Vol 2: Motherboards ProLiant 2000/4000 Switch S1 S2 S3 S4 S5 S6 Position Off* On Off Off* On Off* On Off* On Function Enable Onboard video Extra 3rd and 4th processor, enable 2nd fan sensing. Up to 2 processors Reserved – always Off Enable boot from floppy regardless of setup Floppy boot controlled by setup Enable password set in configuration Disable Clear CMOS ProLiant 4500 Servers As for Proliant 1500 ProLinea 486 Based Jumper E6 E5 Position 1-2 1-2 2-3 CPU 486DX2/50 486DX2/66 486DX4/100 Reserved Function Enable password Internal battery External battery at P3 S1 On On On Off S2 On Off Off Off S3 Off Off Off On S4 Off Off Off Off 586 Based Jumper E6 E5 Position 1-2 1-2 2-3 CPU 586/75 (50) 586/90 (60) 586/100 (50) Function Enable password Internal battery External battery at P3 S1 On Off On S2 Off Off On Pentium Based Jumper E6 E5 Position 1-2 1-2 2-3 CPU Pentium/75 (50) Pentium/90 (60) Pentium/100 (50) Reserved Function Enable password Internal battery External battery at P3 S1 On Off On Off S2 Off Off On On C Prosignia SW1 CPU 486-33 or DX2/66 Overdrive S1 On Off S2 Off On S3 On On SW2 System Maintenance Switch S1 S2 S3 S4 S5 S6 Position Off* Off* Off* On Off* On Off* On Function Enable Onboard video Enable changes in NVM Reserved – always Off Enable boot from floppy regardless of setup Floppy boot controlled by setup Enable password set in configuration Disable Clear CMOS ProSignia 300 Servers Switch 1 2 3 4 5 Position Off* Off* On Off* On Off* On Off* 6 Function Enable Onboard video Enable configuration in NVM Rack mounted chassis Tower chassis Enable boot from floppy regardless of setup Floppy boot controlled by setup Clear passwords Boot is password protected if one is set Clear CMOS ProSignia VS Server SW1 CPU 486SX/33 486DX/33 or DX2/66 Overdrive S1 On On Off S2 Off Off On S3 On On On SW2 System Maintenance Switch S1 S2 S3 S4 S5 S6 Position Off* Off* Off* On Off* On Off* On Function Enable Onboard video Enable changes in NVM Reserved – always Off Enable boot from floppy regardless of setup Floppy boot controlled by setup Enable password set in configuration Disable Clear CMOS 004506001, 004509001 Switch 1 Position Off* Function Enable Onboard video 187 188 The PC Engineer’s Reference Book – Vol 2: Motherboards Switch 2 3 4 5 Position Off* On Off* On Off* On Off* 6 Function Enable configuration in NVM Rack mounted chassis Tower chassis Enable boot from floppy regardless of setup Floppy boot controlled by setup Clear passwords Boot is password protected if one is set Clear CMOS 486 based Assy 003904001, 003907001 SW1 Assy 003910001, 003922001 CPU 486DX2/50 486DX2/66 486DX4/100 Reserved Jumper E6 E5 S1 On On On Off Position 1-2 1-2 2-3 S2 On Off Off Off S3 Off Off Off On S4 Off Off Off Off Function Enable password Internal battery External battery at P3 586 Based With or without integrated graphics. Assy 003768001, 003771001, 003774001 Jumper E6 E5 Position 1-2 1-2 2-3 CPU 586/75 (50) 586/90 (60) 586/100 (50) S1 On Off On Function Enable password Internal battery External battery at P3 S2 Off Off On SLT 286 Jumper J1 Position 1-2 2-3* Function 8 MHz 80287 12 MHz 80c287 Jumpers E2, E3, and E4 are reserved. They must be installed for proper operation. SLT 386s/20 Jumper SW1-1 SW1-2 Position On* On Off* Function Enable fail safe timer Enable clear password Disable clear password C Sytempro Switch E1 E2 E3 E4 Position 2-3* 1-2 2-3* 2-3* Function Enable power on password Reserved Bypass extended NVM on power up (maintenance) Read extended NVM on power up (standard) Enable Onboard video Compower See Procomp Computer Technology System www.acttcs.com.tw Computrend See Premio Concord OA Now AVT Industrial. www.concord.com.hk Award BIOS ID The last two numbers of the BIOS part number. Code 1C Motherboard COA 530 Code 4C COA 507 Fugutech M 507 in disguise COA 530 Fugutech M 530 in disguise Core International Atomizer 386/33 Switch S1 S2 S3 S4 S5 S6 S7 S8 W3 Position On* Off* Off* Off* Off* On* Off On* On Off* 1-2 Function Reserved 80387 not installed Reserved EGA BIOS relocation disabled Reserved Colour video Mono video Cache activated Bus speed 11 MHz Bus speed 8.25 MHz Reserved Motherboard COA 507 189 190 The PC Engineer’s Reference Book – Vol 2: Motherboards Switch W4,5,6 W7 W8 W10 W11 W12 W13 Position Out* 1-2 2-3 1-2 Out Out 1-2 1-2 Out 1-2 2-3* W15 W22 W23 In Out* In Out* W25 Function Reserved 80387 in asynchronous mode 80387 in synchronous mode 80387 in asynchronous mode 80387 in synchronous mode Reserved Cache enabled Direct mapped cache (see also W13) 2-way set associative cache Direct mapped cache (see also W12) 2-way set associative cache Turbo switch connector. Either connect turbo switch to W11, then turbo light to W25, to slow system board to non-cache speed, or connect turbo switch to On/Off jumper and light to W9. Cache video BIOS if not relocated Don’t cache Cache video BIOS if not relocated Don’t cache Cache turbo light Crusader Award BIOS ID The last two numbers of the BIOS part number. Code 9C-00 9C AC Motherboard C586 IPC 586VX Rev B+ C688 LX Code AC FC-00 HC Motherboard C586 HX C586 VX Rev C+ C586HX rev D+ C586HX Same as DFI G586IPC rev D+ or Global Impact C586HX C586VX Same as DFI G586IPV CyberMax Rebadges Biostar motherboards. Cycle Computer Corp www.cyclecc.com D Daewoo Award BIOS ID The last two numbers of the BIOS part number. Code H-00 Motherboard CPC 4600 Code Motherboard 486 (CPC 2700U?) VL Bus, with UMC 82C491F chipset. 8 30-pin SIMM sockets & 2 PS/2 connectors. P/N 9916522801 Jumper JP1 JP2 JP4-8 JP9,11 JP10 JP12 Position 1-2 2-3 Off On Off JP5 Off 2-3 1-2 JP9 1-2,3-4 2-3 1-2,3-4 On Off 5-6 1-2,5-6 1-2,3-4 3-4 JP5 1-2 2-3 1-2 JP11 1-2 Off 2-3 JP6 Off Off On JP7 Off On On JP8 On On On Function CMOS clear Normal External battery Colour display Mono display Cache Size 64K 128K 256K CPU 486DX 486SX 487SX CPU > 33 MHz CPU <= 33 MHz 25 MHz 33 MHz 40 MHz 50 MHz 192 The PC Engineer’s Reference Book – Vol 2: Motherboards Darter DataExpert www.dataexpert.com.tw Award BIOS ID The last two numbers of the BIOS part number. Code 1 1-00 9C AC Motherboard EXP 4044 EXP 4049 EXP 8561 MLX 8440-0A/0B Code BC CC EC-00 Motherboard ExpertColor MLX 8440 EXP 8661 ExpertColor TX430II ExpertColor TX 430II Same as Global Circuit GCT 8ITB Datatech www.dtk.com. See also Gemlight Dell 286-8/12 Switch SW1 SW2 SW3 SW4 SW5 SW6,7,8 Position On Off* On Off* On* Off On Off* Base Memory 256K 512K 640K 512K+512 ext 640K+384 ext Function Colour monitor primary Mono monitor primary LED shows fast speed LED shows power 256K ROM 128K ROM Maintenance Mode Operation mode Reserved SW6 SW7 On On Off Off Off On* Off 200 Jumper J5 J13,14 J15 J16 Position Out In Maths Copro 80287/82C287 Debugger in slot Function Normal operations Maintenance mode J13 J14 1-2 2-3 2-3 Reserved SW8 On Off On Off Off D 210 Jumper W1 W4 W5 W10 W11 WX1 WX2 Position 1-2 2-3 2-3 1-2 2-3 2-3 2-3 1-2 2-3 1-2 Off Function VGA via feature connector On board VGA Enable floppy IDE drives that tristate IRQ14 IDE drives that do not tristate IRQ14 Enable IDE Enable VGA Mono adapter Colour adapter On board video drives IRQ9 Doesn’t Position Out* 1-2 2-3 In* Function Normal use Maintenance – cycles POST EPROM programming Enable password 212N Jumper J41 J44 220 Jumper W1 W2 W3 W4 W5 W6 W7 W8 W9 W10,12,13 W11 W15,16 W14 W17 Position 1-2 In 1-2 Out Out 1-2 1-2* 3-4 5-6 7-8 1-2* 1-2* 2-3 In* Base Memory 640K* 256K 1-2 1-2 both 1-2 2-3 Out* In Function Colour video Mono Disable gate to read status bits on parallel port Enable external oscillator input Enable COM1 IRQ4 Enable COM2 IRQ3 Enable LPT2 IRQ5 Enable LPT2 IRQ7 Enable HD Enable floppy HD INT selected IDE HD diagrams enabled Reset W10 W12 W13 2-3 1-2 2-3 1-2 Disable VGA 8 MHz coprocessor 512K ROM 256K ROM Normal clock for 80287 Clock divided by 2 for 80287 300 Jumper J9 J10 J11 Position In* Out In Out* Function Reset Colour video Mono video Maintenance mode Operational mode 193 194 The PC Engineer’s Reference Book – Vol 2: Motherboards 316 Jumper JMPHD JMPRDY Position 1-2 Function Reserved For some 3rd party drives that require an extra signal on pins 21 or 27 316sx Jumper JM3 JM4 JM5 JM6 JM7 JM8 JM9 Position 1-2 In 1-2 Out 1-2 2-3 2-3* 1-2 2-3 2-3* 1-2 2-3 2-3* Function On board VGA drives IRQ9 On board VGA ignores IRQ9 Mono display Colour display Enable VGA IDE pin 21/IOCHRDY IDE pin 27/IOCHRDY (should be out) Enable IDE IDE tristate IRQ14 IDE does not tristate IRQ14 Enable floppy 320LX Jumper JMPHD JMPRDY Position 1-2* 2-3 1-2 2-3 Function ESDI and most IDE drives IDE drives needing SLVACT asserted Pin 21/IOCHRDY Pin 27/IOCHRDY (should be out for Dell IDE drives) 325/333D Jumper RSET MOCO MNT EPWD PIDE*1 SIDE*1 MSYC VIRQ NIDE*2 OIDE*2 EVGA AROM WSP1 Position Out* Out In* Out* In* Out In* Out* In Out* In Out* In Out In* Out In* In* Out* Out* Function Reserved VGA Mono on boot VGA colour on boot Reserved Enable password 2 x HD – 2nd is primary 1 x IDE – always primary Primary IDE on system board Primary IDE on expansion board Not using multisync Using multisync Onboard VGA not using IRQ9 Onboard VGA using IRQ9 Not using new IDE drives New IDE drives (>Jan 89) Not using old IDE drives Old IDE drives (<Jan 89) Enable VGA Reserved Reserved Position Out* Out In* Out* Function Reserved Mono on boot Colour on boot Reserved for maintenance 325/333P Jumper WSP2 MOCO MNT D Jumper EPWD PIDE SIDE MSYC VIRQ NIDE OIDE EVGA AROM WSP1 Position In In* In* Out* In Out* In Out* In Out In* Function Cycle POST on power up Enable password Always jumpered - IDE HD primary IDE on system board IDE on expansion board Not using multisync Using multisync Video not using IRQ9 Video using IRQ9 Old IDE drives that do not gate IRQs internally Newer IDE drives with internal IRQ gating Out* In* Out* Out* Should be closed for all Dell IDE drives Opposite of NIDE – open for all Dell IDE drives Enable VGA Reserved Reserved Position In* Out In Out* Function Colour video Mono video Maintenance mode Normal ops Position Out In 1-2 2-3 Function Normal ops Reserved Mono on boot Colour on boot Reset SIMM bank A=2Mb SIMM SIMM bank A=1Mb SIMM SIMM bank B=2Mb SIMM SIMM bank B=1Mb SIMM SIMM bank C=2Mb SIMM SIMM bank C=1Mb SIMM SIMM bank D=2Mb SIMM SIMM bank D=1Mb SIMM 386-16 Jumper J10 J11 425E Jumper JM2 JM4 J20 J26A J26B J26C J26D Out In Out In Out In Out In DFI Diamond Flower International. www.dfiusa.com Award BIOS ID The last two numbers of the BIOS part number. Code 9C 9C-00 9C-00 AC AC-00 Motherboard G586IPV rev B+ G586VPM vB/G586VPS Pro vB1+ 586STC G586IPC rev B+/ITBD G586VPM Code BC FC GC HC LC Motherboard G586IPC rev C+ G586IPV rev C+ G586IPC rev D+/586IPV C+ G586IPC rev D+ G586IP/W 195 196 The PC Engineer’s Reference Book – Vol 2: Motherboards G586IPC Same as Crusader C586HX rev D+ or Global Impact C586HX G586IPV B+ Same as Crusader C586VX rev B+ G586IPV C+ Same as Crusader C586IPV rev C+ P2XBL Item Form Factor CPU Chipset BIOS Bus Memory (Mb) I/O Video Performance Switch SW1 JP1 JP3 JP4 Description ATX Pentium II/Celeron 440 BX Award 4.51PG 4 PCI/3 ISA 768 Mb 2 EIDE, floppy, USB Notes Slot 1 1 each shared 3 DIMM sockets AGP Average Position 1 Off On Off On Off On Off On Off On 1-2 2-3 1-2 2-3 Out 1-2 2-3 2 Off On On Off Off On On Off Off On 3 On Off Off Off Off On On On On Off 4 On On On On On Off Off Off Off Off Function Clock Multiplier 3.5x 4x 4.5x 5x 5.5x 6x 6.5x 7x 7.5x 8x Disable wake-on-keyboard/mouse Enable Auto FSB 66 MHz 100 MHz Normal Clear CMOS P5BV3+ Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Video Performance Description AT K6, etc 550 Via MVP3 Award 4.51PG 4 PCI/3 ISA 512 Mb 512 2 EIDE, floppy, USB Notes Socket 7 1 each shared 100 MHz 3 DIMM sockets AGP Average D Diamond Flower International See DFI Diamond Micronics www.diamondmm.com Digicom www.digicomgroup.com Award BIOS ID The last two numbers of the BIOS part number. Code 1-00 Motherboard P5-VP Code 9C-00 Motherboard P54HP Digimate Award BIOS ID The last two numbers of the BIOS part number. Code AC Motherboard T5DX-VPX1E-1 Code DC Motherboard T5DX-VPX2E T5DX-VPX1E-1 Same as Eagle VPX 200B and one Vtech. T5DX-VPX2E Same as Vtech/PCPartner VIB804DSE Digital www.digital.com Domex Formerly DTC. www.domexusa.com www.domex.com.tw DTC See Domex DTK www.dtk.com.tw See also Gemlight Award BIOS ID The last two numbers of the BIOS part number. 197 198 The PC Engineer’s Reference Book – Vol 2: Motherboards Code 9C AC Motherboard GMB P55IPS/P57IPS PAM 0055I Code IC JC Motherboard PAM 0054I PAM 541PS PAM 0054I-E1 Same as Gemlight GMB P54PSI? QUIN-35 Item CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Description Notes Sis 85C501, 85C502, and 85C503 Award 3 PCI/3 ISA Up to 128 MB of conventional DRAM Up to 1 MB of standard Cache (K) 2 16550 serial, 1 EPP/ECP parallel, 1 game port, floppy, 2 EIDE Also Winbond W83769F, W83787F, and W83768F chips 1 each shared. PCI 2.0-compliant 4 72-pin sockets E Eagle Award BIOS ID The last two numbers of the BIOS part number. Code AC Motherboard VPX 200B Code Motherboard VPX 200B Same as Digimate T5DX-VPX1E-1 or a Vtech. ECS Elite Group. www.ecs.com.tw www.ecsusa.com Award BIOS ID The last two numbers of the BIOS part number. Code 1-00 1C-00 2C-00 9C A Motherboard UM 8810P SI54P-AIO rev 1.0 SI54P-AIO SI55P AIO SI56P AVIO Code AC AC-00 DC HC NC Motherboard SI54P-AIO rev 1.0 SI54P AIO SI55P AIO TS54P-AIO TR5510-AIO AL 486(-I) Jumper JP2 Position Open 1-2 2-3 Function Normal EPROM 12v Flash ROM 5v Flash ROM 200 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper JP11,12 20,21 JP13-15 JP22 JP23 JP39 JP46,62 Cache Size 64K 128K 256K 512K Position JP11 3-4,5-6 1-2,3-4 1-2,5-6 3-4,5-6 JP13 Short Open Short 1-2 2-3 1-2 2-3 1-2 2-3 JP46 1-2 2-3 Open JP12 1-2 1-2 2-3 2-3 JP14 Open Open Open JP21 1-2 1-2 2-3 2-3 JP62 Open 1-2 3.45v, 2-3 3.3v Open JP16 Open Short Short Short CPU Type JP20 1-2 1-2 2-3 2-3 JP15 Short Open Open JP33 Open Open Open Short JP25 JP34 Open Short Short Short JP31 486SX/SX2 Open Open 486DX/DX2 Short* Open 487SX Open Open 486DX/DX2 (SL) Short Open 486SX/SX2(SL) Short Open 486DX4(SL) Short Open Am486DXL/DXL2 Open Open Cx486S(M6) Open 2-3 Cx486DX/DX2 M7 Open 2-3 *DX50 only **3x CPU clock – Short for 2x clock JP32 Open Open Open 1-2 1-2 1-2 5-6 3-4 3-4 JP40 1-2 2-3 1-2 1-2 (64Kx8) 2-3(128Kx8) JP35 Function CPU Speed 25 MHz 33 MHz 40 MHz 50 MHz CPU type for system controller Cx486s (M6) Intel 80486 & Am486 Cx486DX/DX2 (M7) <=33 MHz VESA clock speed > 33 MHz 0 VESA wait state 1 VESA wait state Local ready select <=33 MHz Local ready select >33 MHz CPU voltage 5v (from power supply) 3.45/3.3v onboard 3.3v from special power supply JP41 Open Open Short Short JP36 JP37 Open Open Open 2-3 Open 1-2 1-2 2-3 1-2 Open 1-2 2-3 5-6 2-3 3-4 Open Open 3-4 Op*** 2-3 ***1x CPU clock – short for 2x FA 386 Jumper JP1,3 JP2 JP4-7 Position JP1 Open Closed 1-2 2-3 JP4 1-2 2-3 JP3 Open Closed JP5 1-2 2-3 JP6 Open Closed JP7 Open Closed Function Coprocessor No 80387 80387 installed Mono display Colour Cache setting 64K 128K JP38 JP45 JP48 JP49 JP52 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 2-3 2-3 2-3 2-3 2-3 1-2 2-3 2-3 2-3 Opn** - Open Open Open Open Open Open 1-2 2-3 2-3 2-3 1-2,3-4 1-2,3-4 1-2,3-4 2-3 1-2,3-4 1-2,3-4 2-3 1-2,3-4 JP6 0 2-3 2-3 2-3 1-2 1-2 1-2 2-3 1-2 1-2 E FA 486 Jumper JP2 JP3-4 JP5-8 Position 1-2 2-3 JP3 1-2 Open 2-3 JP5 Open Open Closed JP4 1-2,3-4 2-3 1-2,3-4 JP6 2-3 1-2 2-3 JP7 1-2 2-3 2-3 JP8 Open Closed Closed Function Mono display Colour CPU Type 80486DX (DX2) 80486SX 80487SX (Overdrive) Cache setting 64K 128K 256K FE 386 Jumper J3 JP2 W2-9 Position 1-2 2-3 Closed Open Cache size 64K 128K 256K Function Colour display Mono 80387 installed No 80387 W2 W3 Open Open Open Open Close Close W4 Open Close Close W5 Open Close Close MX 386 Jumper JP1 JP2 JP3 JP4 Position 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 Function Mono display Colour display Coprocessor installed Not installed A20MASK selector from keyboard (Cyrix) A20MASK selector from chipset (Cyrix) KEN selector current version (Cyrix – v1.0) KEN selector next reversion ox MXC305 (Cyrix - v1.0) P5HX-A v1.0 Jumper JP1 JP2-5 JP7,8 JP9 JP10 JP11 Position 1-2 3-4 1-2 2-3 JP7 1-2 1-2 2-3 2-3 Open Open 1-2,3-4 open 3-4 1-2 2-3 1-2 1-2 JP8 1-2 2-3 2-3 1-2 2-3 1-2 Function 3.3v (STD) I/O voltage 3.52v (VRE) I/O voltage P54C, 6x86 P55C Clock Multiplier 1.5x 2x 2.5x 3x Cyrix 2x Cyrix 3x 50 MHz Host Clock 55 MHz Host Clock 60 MHz Host Clock 66 MHz Host Clock Flash ROM PnP (12v) Flash ROM non-PnP (5v) Clear CMOS W6 1-2 2-3 1-2 W7 Open 1-2 2-3 W8 1-2 2-3 2-3 W9 1-2 1-2 2-3 201 202 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper JP12 JP15-16 Position 2-3 2-3 1-2 JP15 Short Open Function Normal operation Flash ROM normal BIOS recover Cache size 256K 512K (onboard) Case Connections – J12 SMI switch Reset switch Power LED Keyboard lock Speaker 4-5 9-10 11-13 14-15 17-20 P5HX-A v1.1 Jumper JP1 JP2-5 JP7,8 JP9 JP11 JP15-16 JP17 JP18 Position 1-2 3-4 All 1-2 All 2-3 JP7 1-2 1-2 2-3 2-3 1-2,3-4 open 3-4 1-2 1-2 2-3 JP15 Open Short Open Short Open 1-2 3-4 5-6 7-8 1-2 2-3 JP8 1-2 2-3 2-3 1-2 Function 3.3v (STD) I/O voltage 3.52v (VRE) I/O voltage Single voltage CPU Dual voltage CPU Clock Multiplier JP7 open for Cyrix 6x86 1.5x 2x 2.5x 3x 50 MHz Host Clock 55 MHz Host Clock 60 MHz Host Clock 66 MHz Host Clock Clear CMOS Normal operation Cache size 256K (module) 256K (onboard) 512K (modue) 512K (256K onboard + 256K module) 512K (onboard) 2.5v CPU core voltage 2.7v CPU core voltage 2.8v CPU core voltage 2.9v CPU core voltage Password check disabled Enabled P5HX-B Item CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Description Pentium 166 Intel 430HX Award Flash 4 PCI/4 ISA 8-256 512 2S, 1P, floppy, IDE, USB, IR Notes Socket 7 4 72-pin sockets – EDO/FPM E Jumper JP2,3 Position JP2 1-2 1-2 2-3 2-3 JP4 1-2,3-4 open 3-4 1-2 1-2 2-3 1-2 3-4 All 1-2 All 2-3 JP15 In Out In In Out 1-2 3-4 5-6 JP5 JP10 JP11-14 JP15-16 JP17 JP3 1-2 2-3 2-3 1-2 JP16 1-2 1-2 3-4 3-4 Out Function Clock Multiplier 1.5x 2x 2.5x 3x JP2 open for Cyrix 6x86 50 MHz Host Clock 55 MHz Host Clock 60 MHz Host Clock 66 MHz Host Clock Clear CMOS Normal operation 3.3v (STD) I/O voltage 3.52v (VRE) I/O voltage Single voltage CPU Dual voltage CPU Cache size 256K (onboard) 256K (module) 512K (256K onboard + 256K (module) 512K (onboard) Nil 2.51v CPU core voltage 2.73v CPU core voltage 2.91v CPU core voltage Case Connections – J12 Turbo LED SMI switch Turbo Switch Reset switch Power LED Keyboard lock Speaker 2-3 4-5 6-7 9-10 11-13 14-15 17-20 P5SD-B Item Form Factor CPU Speeds (MHz) Chipset Bus Memory (Mb) Video Performance Comments Jumper JP1,2,3 Description Baby AT Pentium 75-500 MHz SiS 5591/5595 4 PCI/3 ISA 384 Mb SDRAM Position JP1 2-3 1-2 2-3 2-3 1-2 1-2 JP2 2-3 2-3 2-3 1-2 2-3 1-2 Notes Socket 7 2 DIMM sockets AGP 100 MHz bus speed with 5 x multiplier Power for AT and ATX. JP3 2-3 2-3 1-2 2-3 1-2 2-3 Function Ext clk 60 66.8 68.5 75 75 83.3 AGP 60 66.8 68.5 64 75 66.6 PCI 30 33.4 34.3 32 37.5 33.3 203 204 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper JP5 JP6 JP10-12 JP13 JP14 Position 2-3 1-2 1-2 1-2 1-2 2-3 1-2 2-3* JP10 JP11 1-2 1-2 2-3 1-2 2-3 2-3 1-2 2-3 2-3 1-2 2-3 2-3 1-2 2-3 1-2 3-4 5-6* 1-2,3-4,7-8 1-2,3-4,5-6,7-8 7-8 5-6,9-10 3-4 3-4,9-10 3-4,7-8,9-10 3-4,5-6 3-4,5-6,9-10 3-4,5-6,7-8,9-10 1-2 1-2 JP12 2-3 2-3 2-3 Function 90 60 30 100 66.6 33.3 ATX power supply AT power supply Normal Clear CMOS CPU clock multiply 1.1/3.3x 2x 2.5x 3x 4x 4.5x 5x Reserved for 100 MHz CPU I/O voltage VRE 3.5v CPU I/O voltage STD 3.3v 1.8v CPU core voltage 2v CPU core voltage 2.2v CPU core voltage 2.5v CPU core voltage 2.8v CPU core voltage 2.9v CPU core voltage 3.1v CPU core voltage 3.2v CPU core voltage 3.3v CPU core voltage 3.5v CPU core voltage P5SJ-B To enable VGA, set JP1-2 at 1-2, JP10 at 2-3. Reverse to disable. P5SD-B+ Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) I/O Video Description Baby AT Pentium 66-100 VT82C586B Award 4 PCI/2 ISA 512 The usual AGP Notes Socket 7 P5SJ-B Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Description Baby AT Pentium 66-100 Sis 5598 Award 3 PCI/3 ISA 512 The usual Notes Socket 7 E P5SS-Me (Sinbad) Item Form Factor CPU Speeds (MHz) Chipset Bus Memory (Mb) Cache (K) Video Description Micro ATX Pentium Notes Socket 7 SiS 530/5595 3 PCI/1 ISA 1 Gb 1 Mb AGP 66-100 MHz 3 DIMM sockets P5TX-Apro Defaults to 3.3 volts. For dual voltage, set JP-04 to 3-4. P5TX-Bpro Pentium Jumper JP1 JP1 JP2 JP3 Position 11-13,19-21,20-22 11-13,17-19,20-22 9-11,19-21,20-22 11-13,19-21,18-20 9-11,17-19,18-20 9-11,17-19,20-22 11-13,17-19,18-20 1-3,2-4 1-3,4-6 3-5,4-6 3-5,2-4 1-2* 2-3 11-12 9-10 7-8 3-4 1-2 Function 50 Mhz External Clock Speed 55 Mhz External Clock Speed 60 Mhz External Clock Speed 66 Mhz External Clock Speed 68 Mhz External Clock Speed 75 Mhz External Clock Speed 83 Mhz External Clock Speed 1.5x & 3.5x clock multiplier 2x clock multiplier 2.5x clock multiplier 3x clock multiplier Clear CMOS Normal operations 2.2v CPU core voltage 2.8v CPU core voltage 2.9v CPU core voltage 3.2v CPU core voltage 3.25v CPU core voltage Case Connections – J22 Power-on LED SMI switch Reset switch Keyboard lock Speaker 2-3 4-5 9-10 11-15 17-20 P5VP-A+ Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) I/O Video Performance Description ATX K6 etc 450 Via MVP3 Award 4.51PG 4 PCI/2 ISA 768 Mb 2 EIDE, floppy, USB Notes Socket 7 1 each shared 124 MHz 3 DIMM sockets AGP Average 205 206 The PC Engineer’s Reference Book – Vol 2: Motherboards P5VX-A Jumper JP3 JP8 JP10 JP11,12 JP13 JP15 JP16-18 JP20 JP21 Position Open 1-2,3-4 1-2 3-4 1-2 2-3 1-2 3-4 JP11 1-2 1-2 2-3 2-3 Open Short 1-2 2-3 1-2 2-3 1-2 3-4 Open Short JP12 1-2 2-3 2-3 1-2 Function 50 MHz CPU 55 MHz CPU 60 MHz CPU 66 MHz CPU 12v Flash ROM 5v Flash ROM 3.3v (STD) I/O voltage 3.52v (VRE) I/O voltage Clock multiplier 1.5x 2x 2.5x 3x Normal Clear CMOS Enable Super I/O Disable P54C P55C (Mount U10) 2.5v CPU core voltage 2.8v CPU core voltage Disable 3D sound Enable Case Connections – J12 Power On SMI switch Reset switch Power LED Keyboard lock Speaker 1-2 4-5 9-10 11-13 14-15 17-20 P5VX-B Item CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Jumper JP3 JP4 JP8 JP10 JP11,12 Description Pentium 166 Intel 82437VX Award Flash 4 PCI/4 ISA 4-128 0-512 2S, 1P, floppy, IDE Position Open 1-2,3-4 1-2 3-4 1-2 2-3 Short 1-2 3-4 JP11 1-2 1-2 JP12 1-2 2-3 Notes Socket 7 4 72-pin sockets - EDO/FPM. 1 DIMM Function 50 MHz Host clock 55 MHz Host clock 60 MHz Host clock 66 MHz Host clock 12v Flash ROM programming 5v Flash ROM programming 512K cache (256 onboard + module) 3.3v (STD) CPU voltage 3.525v (VRE) CPU voltage CPU clock multiplier 1.5x 2x E Jumper JP13 JP15-16 JP17 Position 2-3 2-3 Open Short JP15 1-2 2-3 1-2 3-4 2-3 1-2 JP16 1-2 2-3 Function 2.5x 3x Normal operations Clear CMOS CPU Type Intel P54C, CT, CTB, Cyrix M1 P55C (needs VR at U30) 2.5v P55C core voltage 2.8v P55C core voltage Case Connections – J12 Turbo LED SMI switch Reset switch Power LED Keyboard lock Speaker 2-3 4-5 9-10 11-13 14-15 17-20 P5VX-Be Item CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Jumper JP1 JP2 JP4 JP5 JP6 JP7 JP11,12 Description Pentium 200 Intel 430VX Award Flash 4 PCI/3 ISA 4-128 2S, 1P, floppy, IDE, NCR SCSI, USB, IR Position In Out 1-2,3-4,5-6 1-2,3-4 3-4,5-6 1-2,5-6 In Out 1-2 3-4 1-2 2-3 1-2 3-4 5-6 JP11 1-2 2-3 2-3 1-2 JP12 1-2 1-2 2-3 2-3 Case Connections – J20 Turbo LED SMI switch Reset switch Power LED Notes Socket 7 2-3 4-5 9-10 11-13 Function Disable password check Normal operation 50 MHz Host Clock 55 MHz Host Clock 60 MHz Host Clock 66 MHz Host Clock Clear CMOS Normal operation 3.3v CPU I/O voltage 3.525v CPU I/O voltage Split Rail CPU Single voltage CPU 2.5v CPU core voltage 2.8v CPU core voltage 2.9v CPU core voltage Clock Multiplier 1.5x 2x 2.5x 3x 4 72-pin sockets - EDO/FPM. 1 DIMM May hang if set to write-back SMC 37C665 I/O controller - check for GT at end of model no, to fix crashes using comms programs. SCSI controller may need IRQ 15. 207 208 The PC Engineer’s Reference Book – Vol 2: Motherboards Keyboard lock Speaker 14-15 17-20 P6BAT-A+ Item Form Factor CPU Chipset BIOS Bus Memory (Mb) I/O Audio Jumper JP1 JP2 JP4 JP7 JP9 Description ATX Pentium II/III/Celeron VIA Award Flash 4 PCI/2 ISA 768 2S, 1P, floppy, IDE, NCR SCSI, USB, IR Yamaha Position 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 Function Normal Clear CMOS Disable Keyboard Power On Enable Normal bus frequency Force 100 MHz Enable Flash BIOS Disable 66/100 MHz Force 133 MHz P6BTM Item Form Factor CPU Chipset BIOS Bus Memory (Mb) I/O Video Description ATX Pentium II/Celeron 440 BX Award 4.51PGMA 3 PCI/2 ISA 1024 Mb 2 EIDE, floppy, USB AGP Notes Description ATX Pentium II/Celeron 440 BX Award 4.51PGMA 5 PCI/2 ISA 768 Mb 2 EIDE, floppy, USB Notes Slot 1 66-100 MHz P6BX-A+ Item Form Factor CPU Chipset BIOS Bus Memory (Mb) I/O Video Performance Slot 1 1 each shared 3 DIMM sockets AGP Relatively poor P6BX-Me Item Form Factor CPU Chipset BIOS Bus Memory (Mb) Description ATX Pentium II/Celeron 440 BX Award 4.51PGMA 2 PCI/2 ISA 384 Mb Notes Slot 1 66-100 MHz Notes Socket 370 & Slot 1 3 DIMM sockets E Item I/O Video Performance Description 2 EIDE, floppy, USB Notes AGP P6BX-MS Item Form Factor CPU Chipset BIOS Bus Memory (Mb) Cache (K) I/O Video Description Micro ATX Pentium II/Celeron 440 BX Award 4.51PGMA 3 PCI/1 ISA 768 Mb Notes Slot 1 66-100 MHz 2 EIDE, floppy, USB Yes, + sound P6SBXT (Libra) Item Form Factor CPU Chipset BIOS Bus Memory (Mb) I/O Video Description ATX Pentium II/Celeron 440 BX Award 4 PCI/2 ISA 768 Mb 2 EIDE, floppy, USB AGP Notes Description ATX Pentium II/Celeron 440 EX Award 4.51PGMA 4 PCI/3 ISA 256 Mb Notes Slot 1 66-100 MHz P6EX-A+ Item Form Factor CPU Chipset BIOS Bus Memory (Mb) Cache (K) I/O Video Slot 1 66-133 MHz 2 EIDE, floppy, USB AGP P6EXP-Me (Robin) Item Form Factor CPU Chipset BIOS Bus Memory (Mb) I/O Video Description ATX Celeron 440 EX Award 3 PCI/1 ISA 256 Mb 2 EIDE, floppy, USB AGP Notes Socket 370 66-133 MHz P6FX1-A Jumper JP4 Position 1-2 2-3 Function 5v Flash BIOS 12v Flash BIOS 209 210 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper J13 J13 Position 3-4,5-6 1-2,7-8 9-10,11-12,13-14,15-16 11-12,13-14,15-16 9-10,13-14,15-16 13-14,15-16 9-10,11-12 Function 60 MHz Host Clock 66 MHz Host Clock Host Clock x2 Host Clock x2.5 Host Clock x3 Host Clock x3.5 Host Clock x4 P6FX1-B Jumper JP3 JP4 J13 J13 J13 J13 VID Enable 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4 3.5 Position Short 1-2 2-3 3-4,5-6 1-2,7-8 9-10,11-12,13-14,15-16 11-12,13-14,15-16 9-10,13-14,15-16 13-14,15-16 9-10,11-12,15-16 17-18, 19-20, 21-22,23-24 VID O 17-18 open short open short open short open short open short open short open short open short VID 1 19-20 open open short short open open short short open open short short open open short short Function Clear CMOS Clear password Normal 60 MHz Host Clock 66 MHz Host Clock Host Clock x2 Host Clock x2.5 Host Clock x3 Host Clock x3.5 Host Clock x4 Open for CPU with VID enabled. Otherwise see table VID 2 21-22 open open open open short short short short open open open open short short short short VDI 3 23-24 open open open open open open open open short short short short short short short short Case Connections SMI switch Power LED Keyboard lock Speaker 4-5 11-13 14-15 17-20 P6FX2 Dual Pentium Pro Jumper JP2 JP4 Position 1-2 1-2,3-4 1-2 2-3 None JP8 1-2,3-4,5-6,7-8 Function Clear CMOS 50 MHz host frequency 66 MHz host frequency 60 MHz host frequency 55 MHz host frequency 2x CPU E Jumper J13 Position 3-4,5-6,7-8 1-2,5-6,7-8 5-6,7-8 1-2,3-4,7-8 1-2 Function 2.5x CPU 3x CPU 3.5x CPU 4x CPU Clear password Case Connections – J8 Power LED SMI switch Power LED Keyboard lock Speaker 2-3 4-5 11-13 14-15 17-20 P6LX-A+ Keyboard on-now feature turned off by disabling JP1. Item Form Factor CPU Chipset BIOS Bus Memory (Mb) I/O Video Description ATX Pentium II/Celeron 440 LX Award 4.51PGMA 4 PCI/3 ISA 1024 Mb 2 EIDE, floppy, USB AGP Notes Description ATX Pentium II/Celeron 440 BX AMI 3 PCI/2 ISA 1024 Mb 2 EIDE, floppy, USB AGP Notes Slot 1 66-100 MHz P6SBU Item Form Factor CPU Chipset BIOS Bus Memory (Mb) I/O Video Slot 1 66-100 MHz P6SEP-Me (Eagle) Item Form Factor CPU Chipset BIOS Bus Memory (Mb) I/O Video Description Micro ATX Notes Socket 370 SiS 620/5595 Award 3 PCI/1 ISA 3844 Mb 2 EIDE, floppy, USB AGP 66-133 MHz SA486P AIO-U Item Chipset Cache (K) I/O Description Saturn IDE, NCR SCSI Notes May hang if set to write-back SMC 37C665 I/O controller - check for GT at end of model no, to fix crashes using comms programs. SCSI controller may need IRQ 15. 211 212 The PC Engineer’s Reference Book – Vol 2: Motherboards SC58P VIO/S Jumper J9 JP3 JP11 JP13 JP14 JP17 JP19 JP21 JP22 Position 1-2 2-3 Short Open 1-2 2-3 1-2 2-3 1-2 3-4 1-2,3-4 Open 1-2 1-2,3-4 3-4 1-2 3-4 1-2 2-3 1-2 2-3 Function Normal Clear CMOS Enable Disable BIOS program 12v BIOS Not Program Mode (5v) 256K cache 512K cache 50 MHz host clock 60 MHz host clock 66 MHz host clock CPU 1.5x CPU 2x CPU 2.5x CPU 3x 3.3v CPU 3.525v CPU (VRE) Normal floppy Write protect CPU non-linear mode (Intel) CPU linear mode (Cyrix) SI54P AIO Pentium. Jumper JP1-2 JP3 JP4 JP5 JP7 JP8 JP9 JP10,11 JP12 JP14 Position JP1 1-2 2-3 1-2 2-3 Open Short 1-2,3-4 2-3 2-3,5-6,7-8 2-3,4-5,8-9 1-2,5-6,7-8 Open 1-2 2-3 Short Open JP10 Open Open Short 1-2 2-3 1-2 2-3 JP2 2-3 1-2 JP11 Open Short Short Case Connections – J13 Turbo LED SMI switch Turbo switch Reset switch 2-3 4-5 6-7 9-10 Function ECP Mode Parallel Port DRQ1 DACK1 Parallel Port DRQ3 DACK3 Enable onboard I/O Disable Enable onboard PCI IDE Disable Double density memory (or 1&2 single) All single density memory 50 MHz host clock speed (1.5x CPU) 60 MHz host clock speed (1.5x CPU) 66 MHz host clock speed (1.5x CPU) System ROM is EPROM or Normal use System ROM is 5v Flash ROM System ROM is 12v Flash ROM Enable DRAM parity check Disable L2 cache 256K (32Kx8) 512K (64Kx8) 1 Mb (128Kx8) L1 cache write-back L1 cache write-through CPU Signal Select always invalidated CPU Signal Select write to invalidated E Power LED Keyboard lock Speaker 11-13 14-15 17-20 SI5PI AIO Pentium. Rev 1.0 has parity checking always enabled. Rev 1.0a has parity checking always disabled, so can use parity or non-parity DRAM. Rev 1.1 uses JP22 to set parity checking. Jumper JP1 JP2 JP4 JP5-7 JP8 JP9-10 JP11 JP13-16 JP19 JP20 JP21 JP22 Position 1-2 2-3 Open Short 1-2,3-4 2-3 JP5 1-2 2-3 Open Short JP9 2-3 1-2 1-2,5-6 2-3,4-5 JP13 Open Open Open Short Short 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 JP6 2-3 1-2 JP7 1-2 2-3 JP10 1-2 2-3 JP14 Open Short Short Short Short JP15 Open Open 1-2 2-3 1-2,3-4 JP16 1-2,3-4 2-3,4-5 1-2,3-4 2-3,4-5 1-2,3-4 Function Enable onboard multi I/O Disable Enable IDE Disable IDE Double density memory used Single density memory only CPU Clock 60 MHz 66 MHz Normal LPT mode ECP mode Parallel Port ECP PRQ & DACK DRQ1, DACK1 DRQ3, DACK3* 12v Flash ROM EPROM L2 cache setting 256K (32Kx8 in Bank 0) 512K (32Kx8 in Bank 0&1) 512K (64Kx8 in Bank 0) 1 Mb (64Kx8 in Bank 0&1) 1 Mb (128Kx8 in Bank 0) L1 writeback L1 writethrough CPU Signal Select always invalidated CPU Signal Select write to invalidated LPT IRQ7 LPT IRQ5 Enable parity check (v1.1 only) Disable SI55P AIO P54C Jumper JP1 JP2 JP3 JP4,6 JP5-7 JP8 Position Open Short 5-6,7-8 Open 1-2 2-3 JP4 1-2 2-3 JP5 1-2 2-3 Enable JP6 1-2 2-3 JP6 2-3 1-2 JP7 1-2 2-3 Function Enable onboard multi I/O Disable IR normal COM2/4 IR front connector 5v EPROM 12v Flash ROM Parallel Port ECP PRQ & DACK DRQ1, DACK1 DRQ3, DACK3 CPU Clock 60 MHz 66 MHz Enable DRAM parity check 213 214 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper JP14-16 JP17 JP18-19 J15 JP21-22 JP25-26 Position JP14 2-3 1-2 1-2 3-4 5-6 JP18 2-3 2-3 1-2 6-7,21-22 JP21 Open Open Short Short JP25 Short Open Short JP15 2-3 1-2 JP19 2-3 1-2 1-2 JP22 Open Short Short Open JP26 Open Short Short JP16 2-3 1-2 Function SRAM 3.3v 3.3/5v mixed 3.3v CPU voltage (STD) 3.385v CPU voltage (VR) 3.525v CPU voltage (VRE) L2 cache size 256K (32Kx8) 512K (64Kx8) 1 Mb (128Kx8) Always set CPU clock multiplier 1.5x 2x 2.5x 3x Host clock speed 50 MHz 60 MHz 66 MHz Case Connections – J12 SMI switch Reset switch Power LED Keyboard lock Speaker 4-5 9-10 11-13 14-15 17-20 SI56P AVIO Jumper JP1,2 JP6,7 JP11 JP12,13 JP15 JP16 JP22,24 JP25 JP26 JP27 Position JP1 1-2 2-3 JP6 1-2 2-3 2-3 Open Short JP12 1-2 2-3 1-2 3-4 1-2,3-4 1-2 3-4 5-6 JP22 Open Open Short Short 1-2 2-3 Short Open Short Open JP2 1-2 2-3 JP7 1-2 1-2 2-3 JP13 1-2 2-3 JP24 Open Short Short Open Function Mixed/Pure cache Pure Mixed Cache size 256K 512K 1 Mb Enable super I/O Disable ECP Mode DRQ1/DACK1 DRQ3/DACK3 50 MHz host clock 60 MHz host clock 66 MHz host clock 3.3v CPU voltage (STD) 3.385v CPU voltage (VR) 3.525v CPU voltage (VRE) Clock multiplier 1.5x 2x 2.5x 3x 5v Flash voltage 12v Flash voltage Clear CMOS Normal Enable onboard VGA Disable E Case Connections – J16 Turbo LED SMI switch Reset switch Power LED Keyboard lock Speaker 2-3 4-5 9-10 11-13 14-15 17-20 SL 486E EISA 486 Jumper JP1,2 JP3,4 JP5 JP6 JP7 JP8-10 JP11 JP12 JP13 JP14 JP20 Position JP1 1-2 1-2 2-3 JP3 1-2 2-3 2-3 1-2 2-3 1-2 3-4 5-6 1-2 2-3 JP8 2-3 1-2 2-3 1-2 2-3 Closed Open 1-2* Close Open 1-2 open 1-2 closed JP2 1-2 2-3 2-3 JP4 1-2 1-2 2-3 JP9 2-3 1-2 2-3 JP10 1-2 1-2 1-2 Function ALT Bit selection 64K 128K 256K Cache size 64K 128K 256K 8Kx8 SRAM 32Kx8 SRAM One bank SRAM 2 banks 8Kx8 SRAM 2 banks 32Kx8 SRAM CPU <50 MHz CPU 50 MHz CPU type 486DX 486SX 487SX Bus cycle pending, 85C406 system arbitration logic bypasses CPU System arbitration logic in 85C406 includes CPU Local bus memory slaves can receive burst cycles Non-burst mode Refresh signal selection Mono display Colour display Turbo Normal speed TR 5510 AIO Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Jumper JP1 JP2 Description Baby AT Pentium P54C(T)(B) 75-166 Intel 430FX or UMC Award Flash 4 PCI/3 ISA 4-128 512 2S, 1P, floppy, 2 EIDE Position 1-2* Open* Notes 4 layer FPM/EDO. 4 72-pin SIMM. 256 standard Function Enable Onbard I/O Normal CMOS 215 216 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper Position Short 1-2 2-3 Open 1-2 3-4 1-2,3-4 Open 1-2 1-2,3-4 3-4 JP12 1-2* 2-3 6-7,21-22 1-2 3-4 5-6 1-2 2-3 Open 1-2 2-3 JP7 1-2 2-3 Open JP3 J4 J8 JP12,13 J13 JP17 JP19 JP23 JP7,21,22 JP13 1-2* 2-3 JP21 2-3 1-2 Open JP22 1-2 2-3 Open Function Clear CMOS System clock PCI clock/3 System clock PCI clock/4* 50 MHz Host clock 55 MHz Host clock (IMI604 U10) 60 MHz Host clock 66 MHz Host clock 1.5x CPU 2x CPU 2.5x CPU 3x CPU SRAM voltage 5v (mixed SRAM) 3.3v (pure 3.3v or PB SRAM) VRM connector - all CPUs 3.52v CPU 3.38v CPU* 3.3v CPU Tag installed for PB SRAM module Tag not installed for PB SRAM module – install Std SRAM at U17 Page mode flash BIOS* 5v flash program voltage 12v flash program voltage Cache size (standard SRAM) 256K* 512K 256/512K (PBSRAM) Case Connections – J12 Turbo LED SMI switch Turbo switch Reset switch Power LED Keyboard lock Speaker 2-3 4-5 6-7 9-10 11-13 14-15 17-20 TS 54P AIO Jumper JP1 JP4 JP5,10 JP6,27 JP7 JP8,9 J12 Position 1-2 2-3 Open 1-2 3-4 1-2,3-4 JP5 Open Short Short Open JP6 Open 1-2,3-4 1-2 2-3 JP8 1-2 2-3 5-6,7-8 JP10 Open Open Short Short JP27 Open 1-2,3-4 JP9 1-2 2-3 Function Pure 3.3v cache Mixed 5/3.3v cache 50 MHz host 55 MHz host (U22 uses IMI 604 only) 60 MHz host 66 MHz host Clock multiplier 1.5x 2x 2.5x 3x CPU voltage 3.3v (from power supply) 3.3v (from onboard regulator) Enable onboard I/O Disable ECP DMA (SMC37C665GT only) DMA1 DMA3 IR normal COM2/4 E Jumper JP15 JP20-24 JP25 JP26 JP28 JP50 Position Open Open Short JP20 JP21 1-2 1-2 1-2 1-2 2-3 1-2 1-2 2-3 2-3 1-2 1-2 3-4 5-6 1-2,3-4,5-6,7-8 Open JP22 1-2 2-3 2-3 JP23 2-3 2-3 1-2 JP24 1-2 1-2 2-3 Function IR connector Normal Clear CMOS L2 cache size 256K PBSRAM (U17, U18) 256K Standard SRAM (U9-16) 512K Standard SRAM (U9-U16) L1 cache write back L1 cache write through System clock PCICLK/4 System clock PCICLK/3 3.14-3.46v 3.3-3.46v 3.45-3.6v U25 not installed U25 installed Case Connections – J11 Turbo LED SMI switch Reset switch Power LED Keyboard lock Speaker 2-3 4-5 9-10 11-13 14-15 17-20 UA 4982 Jumper JP1 JP3 JP4-6 10-13 JP7-9 JP14-19 JP20-22 JP24 JP25 Position 1-2 2-3 Open Short JP4 1-2 1-2 1-2 JP7 Short Short Short Open JP14 Open Open 1-2,3-4 1-2,3-4 1-2,3-4 1-2,3-4 Open 2-3 2-3,4-5 JP20 1-2 2-3 2-3 Open Short Open JP5 1-2 1-2 2-3 JP8 Open Short Short Open JP15 2-3 1-2,3-4 2-3 1-2,3-4 1-2,3-4 1-2,3-4 2-3 1-2,3-4 2-3 JP21 1-2 2-3 2-3 JP6 Open 1-2 2-3 JP9 Open Short Open Short JP16 Open 1-2 Open 1-2 1-2 1-2 3-4 1-2 Open JP22 Open 1-2 2-3 JP10 Open Open 1-2 JP11 Open Open Short JP17 Open Open 5-6 5-6 3-4,5-6 5-6 1-2 2-3,4-5 2-3,4-5 JP18 2-3 2-3 1-2 1-2 1-2,4-5 1-2 2-3 1-2,3-4,5-6 1-2,3-4,5-6 JP12 Open Open Open JP13 Open Short Short JP19 Open Open 1-2 1-2 1-2,4-5 1-2 2-3 1-2,3-4 1-2,3-4,5-6 Function 5v Flash ROM 12v Flash ROM External keyboard control Internal keyboard control Cache size 128K (32Kx8) 256K (64Kx8) 512K (128x8) CPU speed 25 MHz 33 MHz 40 MHz 50 MHz CPU Type 486SX/SX2 486DX/DX2/AmDX4 486SX/SX2 (SL) 486DX/DX2 (SL) 486DX2 (P24D) L1 wb Intel 486DX4 UMC U5-S Super Cyrix 486DX/DX2(M7) Cyrix 486S(M6) CPU voltage 5v 3.45v 3.3v DX4 internal clock x 3 DX4 internal clock x 2 Local bus <=33 MHz 217 218 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper JP26 JP100,102 102,300 JP400 Position Short Open Short Short Open Open Short Function Local bus >33 MHz Local bus write 0 wait state Local bus write 1 wait state Cyrix DX2-50 Other CPUs AMD DX4 3x clock AMD DX4 or DX2802x Case Connections – J90 Turbo LED SMI switch Turbo switch Reset switch Power LED Keyboard lock Speaker 2-3 4-5 6-7 9-10 11-13 14-15 17-20 UC 4913 Jumper JP1 JP2 JP7 JP9,10 JP11 JP12 JP13 15-17 JP18 JP19-21 JP23 Position Open Closed Open Closed 1-2,3-4 2-3 JP9 Short Open Short Open 1-2 2-3 Open Closed JP13 Open 2-3 1-2 1-2 2-3 JP19 1-2 2-3 1-2 2-3 JP10 Short Short Open Open JP15 Open Open Short JP16 1-2 2-3 1-2 JP20 2-3 1-2 JP21 2-3 1-2 JP17 Open Short Short Function Local Bus Write 0 wait state Local Bus Write 1 wait state Local Bus Speed <=33 MHz Local Bus Speed >33 MHz 80486DX, DX2, P23T, AMD 486DX, M6/C6 module 80486SX, M6, AMD486SX CPU Clock 25 MHz 33 MHz 40 MHz 50 MHz Mono display Colour 486PQFP 486PGA Cache size 64K 128K 256K Weitek Power 9000 VESA VGA card not installed Weitek Power 9000 VESA VGA card installed C6 coprocessor Present Absent CPU clock 50 MHz CPU clock <=40 MHz UC 4980 Jumper JP1 JP3 JP4-6 10-13 Position Open 1-2 2-3 Open Short JP4 1-2 1-2 2-3 2-3 JP5 1-2 1-2 2-3 2-3 JP6 Open 1-2 Open 2-3 JP10 Open Open Open Open JP11 Open Open Open Short JP12 Open Open Open Open JP13 Open Short Short Short Function Normal EPROM 5v Flash ROM 12v Flash ROM External keyboard control Internal keyboard control Cache size 128K (32Kx8x4) 256K (64Kx8x4) 256K (32Kx8x8) 512K (64Kx8x8) E Jumper JP7-9 JP14-19 JP20-22 JP24 JP25 JP26 Position 1-2 2-3 JP7 Short Short Short Open JP14 Open Open 1-2,3-4 1-2,3-4 1-2,3-4 2-3,4-5 2-3 Open Open 1-2,3-4 JP20 1-2 2-3 2-3 Open Short Open Short Open Short 2-3 2-3 JP8 Open Short Short Open JP15 2-3 1-2,3-4 2-3 1-2,3-4 1-2,3-4 2-3 1-2,3-4 2-3 1-2,3-4 1-2,3-4 JP21 1-2 2-3 2-3 2-3 2-3 JP9 Open Short Open Short JP16 Open 1-2 Open 1-2 1-2 Open 1-2 3-4 1-2,3-4 1-2 JP22 Open 1-2 2-3 1-2 2-3 Short Short JP17 Open Open 5-6 5-6 3-4,5-6 2-3,4-5 2-3,4-5 1-2 1-2 5-6 JP18 2-3 2-3 1-2 1-2 1-2,4-5 1-2,3-4,5-6 1-2,3-4,5-6 2-3 2-3 1-2 Open Short Short Short JP19 Open Open 1-2 1-2 1-2,4-5 1-2,3-4,5-6 1-2,3-4 2-3 2-3 1-2 Function 512K (128x8x4) 1Mb (128Kx8x8) CPU speed 25 MHz 33 MHz 40 MHz 50 MHz CPU Type 486SX/SX2 486DX/DX2 486SX/SX2 (SL) 486DX/DX2 (SL) 486DX2 (P24D) L1 wb Cyrix 486S(M6) Cyrix 486DX/DX2 UMC U5-S Super AMD DXL/DXL2 Intel 486DX4 CPU voltage 5v 3.45v 3.3v DX4 internal clock x 3 DX4 internal clock x 2 Local bus <=33 MHz Local bus >33 MHz Local bus write 0 wait state Local bus write 1 wait state UM486V Jumper JP13 JP15 JP16 JP18-21 JP22,23 27,28 JP24 JP14-15 Position 1-2 2-3 Short Open Short Open JP18 Short Open Open JP22 1-2 2-3 1-2 Open Short JP25 1-2,3-4 2-3 1-2,3-4 JP19 Short Short Open JP23 Open Open Short JP26 1-2 Open 2-3 JP20 Open Open Open JP27 Open Short Short JP21 Open Open Open JP28 1-2 2-3 2-3 Function Mono display Colour VESA ID2 CPU speed > 33 MHz VESA ID2 CPU speed <= 33 MHz VESA ID3 1 wait state write VESA ID3 0 wait state write CPU clock 25 MHz 33 MHz 50 MHz Cache size 64K 128K 256K Enable 486SX PQFP setting Disable CPU Type 80486DX (DX2) 80486SX 80487SX (Overdrive) UM 4980 Jumper JP1 Position Open 1-2 Function Normal EPROM 5v Flash ROM 219 220 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper JP3 JP4-6 10-13 JP7-9 JP14-19 JP20-22 JP24 JP25 JP26 Position 2-3 Open Short JP4 1-2 1-2 2-3 2-3 1-2 2-3 JP7 Short Short Short Open JP14 Open Open Open 1-2,3-4 1-2,3-4 1-2,3-4 2-3,4-5 2-3 Open 1-2,3-4 JP20 1-2 2-3 2-3 Open Short Open Short Open Short JP5 1-2 1-2 2-3 2-3 2-3 2-3 JP8 Open Short Short Open JP15 2-3 1-2,3-4 1-2,3-4 2-3 1-2,3-4 1-2,3-4 2-3 1-2,3-4 2-3 1-2,3-4 JP21 1-2 2-3 2-3 JP6 Open 1-2 Open 2-3 2-3 2-3 JP9 Open Short Open Short JP16 Open 1-2 1-2 Open 1-2 1-2 Open 1-2 3-4 1-2 JP22 Open 1-2 2-3 JP10 Open Open Open Open 1-2 2-3 JP11 Open Open Open Short Short Short JP17 Open Open Open 5-6 5-6 3-4,5-6 2-3,4-5 2-3,4-5 1-2 5-6 JP18 2-3 2-3 2-3 1-2 1-2 1-2,4-5 1-2,3-4,5-6 1-2,3-4,5-6 2-3 1-2 JP12 Open Open Open Open Open Short JP19 Open Open Open 1-2 1-2 1-2,4-5 1-2,3-4,5-6 1-2,3-4 UM 4981 Jumper JP2 JP3 JP5-6 JP8 JP9-11 JP22-25 JP26,40 Position Open 1-2 2-3 1-2 JP5 1-2 2-3 Short Open JP9 Open Short Open Short JP22 2-3 1-2 2-3 JP26 JP6 1-2 2-3 JP10 Open Short Short Open JP23 Open 1-2 2-3 JP40 JP11 Short Short Short Open JP24 Open Open Short JP25 Open Short Short JP13 Open Short Short Short Short Short Function Normal EPROM 5v Flash ROM 12v Flash ROM Enable onboard multi I/O ECP Mode DRQ1, DACK1 DRQ3, DACK3 Enable parallel port ECP mode Normal mode CPU clock 25 MHz 33 MHz 40 MHz 50 MHz Cache size 64K (8Kx8 – 2 banks) 128K (32Kx8 – 1 bank) 256K (32Kx8 – 2 banks) CPU Voltage 2-3 1-2 Function 12v Flash ROM External keyboard control Internal keyboard control Cache size 128K (32Kx8x4) 256K (64Kx8x4) 256K (32Kx8x8) 512K (64Kx8x8) 512K (128x8x4) 1Mb (128Kx8x8) CPU speed 25 MHz 33 MHz 40 MHz 50 MHz CPU Type 486SX/SX2 486DX/DX2 AMD Am 486DX4 486SX/SX2 (SL) 486DX/DX2 (SL) 486DX2 (P24D) L1 wb Cyrix 486S(M6) Cyrix 486DX/DX2 UMC U5-S Super Intel 486DX4 CPU voltage 5v 3.45v 3.3v DX4 internal clock x 3 DX4 internal clock x 2 Local bus <=33 MHz Local bus >33 MHz Local bus write 0 wait state Local bus write 1 wait state E Jumper JP27 JP28 JP29 JP36 JP37,38 JP41 Position Short Open VR100 Open Short Open Short Open 2-3 1-2 2-3 JP37 2-3 1-2 2-3 1-2 Open Short CPU Type 486SX/SX2 486DX/DX2 486DX/DX2 (SL) 486SX/SX2(SL) 486DX2 (P34D) P24T Am486DX4 Cx486S(M6) Cx486DX/DX2(M7) UMC U5S-Super Function 5v (from power supply) 3.3v (from 3.3v power supply) Others VESA 0 wait state VESA 1 wait state CPU speed <=33 MHz CPU speed >33 MHz DX4 3x clock DX4 2x clock Enable Primary/Secondary IDE Disable Hard Disk Timing Active time 15T, Cycle time 30T, Spd 1, 40/50 Mb Active time 15T, Cycle time 19T, Spd 2, 25/33 Mb Active time 9T, Cycle time 13T, Spd 3, <20 Mb or EIDE Active time 18T, Cycle time 37T, Spd 0, <40 Mb/non-ATA AMD 486DX2/DX4 3x clock AMD 486DX2/DX4 2x clock Open 1-2,3-4 Open JP38 2-3 2-3 1-2 1-2 JP25 Open Open 1-2,3-4 1-2,3-4 1-2,3-4 1-2,3-4 Open 2-3,4-5 2-3 2-3 JP31 Open Open 5-6 5-6 3-4,5-6 5-6 1-2 2-3,4-5 2-3,4-5 4-5 JP32 2-3 2-3 1-2 1-2 1-2,4-5 1-2 2-3 1-2,3-4,5-6 1-2,3-4,5-6 2-3 JP35 Open Open 1-2 1-2 1-2,4-5 1-2 2-3 1-2,3-4 1-2,3-4 3-4 JP36 Open 1-2 Open 1-2 1-2 2-3 1-2,3-4 Open 1-2 Open JP37 2-3 1-2,3-4 2-3 1-2,3-4 1-2,3-4 1-2,3-4 1-2,3-4 2-3 1-2,3-4 2-3 JP38 Open Open Open Open Open Open Open Open Open Open Case Connections – JP30 Turbo LED SMI switch Turbo switch Reset switch Power LED Keyboard lock Speaker 2-3 4-5 6-7 9-10 11-13 14-15 17-20 UM8810P AIO Item Form Factor CPU BIOS Bus Memory (Mb) Cache (K) I/O Comments Jumper JP4,5 Description ¾ Baby AT 486 Green Phoenix 3 PCI/4 ISA 2-128 512 2S, 1P, IDE Position JP4 2-3 1-2 JP5 1-2 2-3 Notes Intel/Cyrix, including Pentium Overdrive Older versions 64 Mb, in 4 x 16 single-sided or 2 x 32 double-sided SIMMs CMD chipset for IDE, SMC chip for built-in ser/par and UMC 888X for PCI. Later versions have J41 removed for P24T PODP5V Function Parallel Port PRQ & DACK DRQ1, DACK1 DRQ3, DACK3* JP45 Open Open Open Open Open Open Open Open Open Open 221 222 Jumper JP6 JP8 JP10 JP12 JP17 JP25 JP29 JP30 The PC Engineer’s Reference Book – Vol 2: Motherboards Position Open 1-2 2-3 1-2 All shorted VR100/102 JP1 1-2 VR100/102 JP1 3-4 VR100/102 JP1 5-6 VR100/102 JP1 7-8 Open Short 1-2 1-2,3-4,5-6 1-2,3-4 5-6 1-2 2-3 Open Short Open Short Cache Size 128K (32Kx8) 256K (32Kx8) 512K (64Kx8) 512K (128Kx8) JP18 JP19 JP20 JP21 JP22 JP23 JP24 JP25 JP27 JP28 JP36 JP37 JP38 JP44 i486DX/DX2 A486 DX/2/4 NV8T 1-2,3-4 1-2 1-2 1-2 1-2 - P24T JP18 JP19 JP20 JP21 JP22 JP23 JP24 JP25 JP13 1-2 1-2,3-4 2-3 1-2 1-2 2-3 - Function System ROM is EPROM System ROM is 5v Flash ROM System ROM is 12v Flash ROM Enable onboard multi I/O 37C665 (2-3 Disable) 5v CPU 3.3 3.45 3.6 4v CPU Enable onboard IDE Controlled by BIOS* 25 Mhz host clock speed 33 Mhz host clock speed 40 Mhz host clock speed 50 Mhz host clock speed Am486 DX2/4 Nv8T 3x CPU clock* Am486 DX2/4 Nv8T 2x CPU clock i486DX4, AMD DX2/4 SV8B 3x CPU clock* i486DX4, AMD DX2/4 SV8B 2x CPU clock Normal operation Clear CMOS JP14 1-2 2-3 2-3 2-3 JP16 2-3 1-2 1-2 2-3 JP33 Short Short JP35 Short Short Short i487SX ODP i486SX DX/2/4 (SL) ODPR SX/2(SL) 1-2,3-4 2-2 1-2 1-2 1-2 - 2-3 1-2 1-2 1-2 1-2 - 1-2,3-4 1-2 1-2 2-3 2-3 1-2 2-3 2-3,4-5 1-2 1-2 1-2 - 2-3,4-5 1-2 1-2 1-2 - CxDX/2/4 M7 Short 1-2,3-4 1-2 2-3 2-3 2-3 1-2 CxDX4 100GP4 Short 1-2,3-4 1-2 1-2,3-4 2-3 1-2 Cx486S U5SD U5S Short 2-3 2-3 2-3 2-3 - 1-2,3-4 1-2,3-4 1-2 - 2-3 1-2,3-4 1-2 - DX2/4(SL) ADX2/4Sv8B Cx5x86 100/120 Short 1-2,3-4 1-2 1-2,3-4 2-3 2-3,4-5 1-2 1-2 1-2 - E P24T JP27 JP28 JP36 JP37 JP38 JP44 CxDX/2/4 M7 1-2 3-4 2-3 1-2 1-2 2-3 - 2-3 4-5 1-2 1-2 1-2 1-2 - CxDX4 100GP4 2-3 4-5 1-1 1-2 2-3 - Cx486S U5SD U5S 1-2 3-4 2-3 1-2 1-2 2-3 - - - 3-4 2-3 2-3 1-2 - 3-4 2-3 2-3 1-2 - 223 Case Connections – J11 Turbo LED SMI switch Turbo switch Reset switch Power LED Keyboard lock Speaker 2-3 4-5 6-7 9-10 11-13 14-15 17-20 UP 8812 AIO Jumper JP1 JP3 JP5 JP21 JP30 32-33 Position Open 1-2 2-3 1-2 2-3 1-2 1-2,3-4,5-6 1-2,3-4 5-6 Short Open JP30 Open 1-2 3-4 5-6 7-8 L2 cache 128K (32Kx8 1 bank) 256K (32Kx8 2 bank) 256K (64Kx8 1 bank) 512K (64Kx8 2 bank) 512K (128Kx8 1 bank) 1 Mb (128Kx8 2 bank) JP9 JP10 JP12 JP13 JP15 i486DX/DX2 A486 DX/2/4 NV8T Open Open 1-2 1-2 Open JP32 1-2 2-3 2-3 2-3 2-3 JP6 Short Short Short Short Short JP33 1-2 2-3 2-3 2-3 2-3 JP7 Short Short Short Function EPROM BIOS 5v Flash ROM 12v Flash ROM Enable onboard multi I/O Disable 25 MHz CPU 33 MHz CPU 40 MHz CPU 40 MHz CPU 50 MHz CPU DX4 internal clock 2x DX4 internal clock 3x CPU voltage 5v 3.3v 3.45v 3.6v 4v JP8 Short JP14 1-2 2-3 JP19 1-2 2-3 1-2 2-3 JP24 2-3 1-2 2-3 1-2 2-3 1-2 DX/2/4 (SL) ODPR i486SX (PGA) i486SX (SL) PD5v (P24T) Cx486S (M6) CxDX/2/4 M7 2-3 Open 1-2 1-2 Open Open Open 1-2 1-2 Open Open Open 1-2 1-2 Open Open Open 1-2 1-2 1-2 Open Open 1-2 2-3 2-3 Open Open 1-2 2-3 2-3 DX2/4(SL) ADX2/4Sv8B C5x86 100/120 1-2 Open 1-2 1-2 Open 224 The PC Engineer’s Reference Book – Vol 2: Motherboards i486DX/DX2 A486 DX/2/4 NV8T JP16 Open JP17 Open JP18 1-2 JP21 Open JP23 Open JP25 Open JP26 1-2 JP27 Open JP28 1-2,3-4 JP29 Open *Short for AMD Am5x86-P75 DX/2/4 (SL) ODPR i486SX (PGA) i486SX (SL) PD5v (P24T) Cx486S (M6) CxDX/2/4 M7 Open 1-2 2-3 Open Open 1-2 1-2 Open 1-2,3-4 2-3,4-5 Open Open 1-2 Open Open Open Open Open 2-3 Open Open 1-2 2-3 Open Open 1-2 Open Open 2-3 2-3,4-5 Open 1-2 1-2 Open Short 1-2 2-3 1-2 1-2,3-4 2-3,4-5 2-3 1-2 2-3 Open Open 2-3 Open 2-3 2-3 1-2,3-4 2-3 1-2 2-3 Open Open 2-3 1-2 2-3 1-2,3-4 1-2,3-4 DX2/4(SL) ADX2/4Sv8B C5x86 100/120 Open 1-2 2-3 Open* Open 1-2,3-4 1-2 Open 1-2,3-4 2-3,4-5 Case Connections – J31 Turbo LED SMI switch Turbo switch Reset switch Power LED Keyboard lock Speaker 2-3 4-5 6-7 9-10 11-13 14-15 17-20 US 3486 Jumper J3 JP1 JP2 W12-13 W2-9 Position 1-2 2-3 1-2 2-3 Short W12 1-2,3-4 2-3 1-2,3-4 Cache size 64K 128K 256K W13 1-2 Open 2-3 - Function Colour display Mono 386 CPU 486 CPU 80387 installed Open =Not installed CPU Type 80486DX (DX2) 80486SX 80487SX (Overdrive) 386 W2 W3 W4 Open Open Open Open Open Short Short Short Short W5 Open Short Short VESA 486 Jumper JP1 JP4-7 JP8-11 JP12-13 JP14-15 Position 1-2 2-3 JP4 Short Short Open JP8 Open Short Short JP12 Open Closed JP14 1-2,3-4 2-3 JP5 Short Open Open JP9 Open Open Short JP13 Open Closed JP15 1-2 Open JP6 Open Open Open JP10 1-2 2-3 2-3 JP7 Open Open Open JP11 1-2 2-3 1-2 Function Mono display Colour CPU clock 25 MHz 33 MHz 50 MHz Cache size 64K 128K 256K VESA ID Selection 0 wait write 1 wait write CPU Type 80486DX (DX2) 80486SX W6 1-2 2-3 1-2 W7 Open 1-2 2-3 W8 1-2 2-3 2-3 W9 1-2 1-2 2-3 E Jumper Position 1-2,3-4 Function 80487SX (Overdrive) 2-3 VL 486 As for VESA 486 Edom International www.edom.com. Refer also to Wintec. EFA www.efacorp.com www.efa.com.tw Award BIOS ID The last two numbers of the BIOS part number. Code 0-00 1-00 1C-00 9 Motherboard 4DMS-HL3G 486 VIP P54NPCI or P5/MP4 P5V580-AT-3 Code AC CC HC Motherboard P5TVX-AT/P5V580-AT-C P55T2PIO-B ver 2.07 P55T-PIO-B EFAR Award BIOS ID The last two numbers of the BIOS part number. Code 1-0B Motherboard EF 9417 Code Motherboard Elite Group See ECS Elonex Award BIOS ID The last two numbers of the BIOS part number. Code U Motherboard W14 Code Motherboard 88C Jumper J2 J3 J4 J7 Position In Out 1-2 2-3 In Out 1-2 2-3 Function Enable NMIs Disable NMIs Enable IRQ3 Enable IRQ4 Enable reset Disable reset Enable COM2 2F8-2FF Enable COM1 3F8-3FF 225 226 Jumper J8 J10 J11 SW1 The PC Engineer’s Reference Book – Vol 2: Motherboards Position 1-2 2-3 1-2 2-3 All out All in None 1-2,3-4 3-4 1-2,7-8 1-2,3-4,7-8 1-2,5-6,7-8 1-2,3-4,5-6,7-8 Function Real clock time H240 Real clock time H340 Floppy A=720K, B=360K Floppy A=360K, B=720K Floppy A=360K, B=360K Floppy A=720K, B=720K 2764 8K ROM 27512 64K ROM 27128 16K ROM Mono display 80x25 colour display 40x25 colour display EGA 88C Jumper J2 J3 J4 J7 J8 J9 J10 J12 J13 J17 J18 J19 J20 J21,23 J23 J27 J28 Position In Out* In Out A 1-2 1-2 All out All in 1-2 2-3* 1-2 2-3* 1-2 2-3* 1-2 2-3* All out 1-2 2-3* None* 1-2 1-2,3-4 In* 1-2* 2-3 1-2 2-3* J21 Out Out 1-2 None B* A,B Out In B 1-2 3-4 J23 Out In 1-2 Function FDD secondary address 370-377h FDD primary address 3F0-3F7h Enable floppy controller card Disable Floppy settings A=360K, B=360K A=720K, B=720K A=1.2 Mb, B=1.2 Mb A=1.44 Mb, B=1.44 Mb Reserved HD address 324h HD address 320h HD firmware address CA00h HD firmware address C800h Onboard HD IRQ2 Onboard HD IRQ5 Enable COM2 Enable COM1 Disable RTC address 240-25Fh RTC address 340-35Fh 27128 ROM 27256 ROM 27512 ROM Enable game port LPT IRQ7 LPT IRQ5 Serial IRQ3 Serial IRQ4 Monitor type Mono 80x25 Colour 40x25 Plug in EGA/VGA Front panel LED Disable parallel port Parallel port I/O 3BC-3BFh Parallel port I/O 378-37Fh Mono display Colour display E 88S Switch S1 S2 S3 S4 S5,6 S7,8 Position On* Off S5 On Off On Off S7 On Off On Off S6 On On Off Off S8 On On Off Off Function Reserved Maths copro not installed 8087-1 installed Reserved Reserved Monitor type Unused 40x25 colour 80x25 colour 80x25 Mono Floppies 1 fitted 2 fitted 3 fitted 4 fitted 286C-12 Jumper J1 J4 J5 J6 J12 J15 J18 SW1 S1-3 SW1 S4 Position 4 3 2 1 Out In 1-2 2-3 2-3 1-2 1-2 2-3 1-2 2-3 S1 On Off On On On On Off Off Off Off On Off S2 S3 On On Off Off On On Off Off On Off On Off On Off On Off 286C-100 Jumper J5 J7 J8 J11 Position 1-2 1-2 1-2 2-3 1-2 Function COM2 IRQ4 COM1 IRQ3 COM2 IRQ3 Mono display CGA, EGA display Function Disable COM1 Disable LPT1 Disable COM2 Disable LPT2 System clock divided by 2 for slower I/O I/O frequency synchronised with system clock Clock input used directly 80287 divides clock input by 3 80287 synchronised to CPU 80287 synchronised to oscillator Reserved 0 wait state 1 wait state 27256 EPROM 27128 EPROM Memory (chips) 256K or less 1 Mb 256K (4 rows of 64K) 512K (2 rows of 256K) 640K (2 rows of 64K, 2 rows of 256K) 1 Mb (4 rows of 256K) 2 Mb (2 rows of 1 Mb) 640K (2 rows of 1 Mb) 2 Mb (2 rows of 1 Mb) 4 Mb (4 rows of 1 Mb) Colour monitor Mono monitor 227 228 Jumper J14 J15 J16 J17 J22 J23 J24 J25 The PC Engineer’s Reference Book – Vol 2: Motherboards Position In Out In Out 1-2 1-2 2-3 In Out 1-2 2-3 In Out In Out Function Enable COM1 Disable COM1 Enable COM2 Disable COM2 COM1 IRQ4 80287 clock direct 80287 divide by 3 Base memory 512/640K Base memory 512K/1 Mb 80287 clock from system 80287 clock from 8234 32K BIOS (27256) 16 K BIOS (27128) 0 wait state 1 wait state 286m Jumper J1 J5 J6 J7 J11 J14 J16 J17 J18 J20 J27 SW1 S1-3 SW1 S4 SW2 S1-6 Position 1-10 2-9 4-7 3-8 5-6 1-2 2-3 In Out 1-2* 2-3 1-2 2-3 1-2 2-3 In Out 2-3 1-2 1-2 1-2 2-3 2-3 Out Out S1 S2 Off Off Off Off Off On On Off On On On Off Display Type VGA CGA 40x25 CGA 80x25 EGA 200 line EGA 350 line MGA S3 Off On Off Off Off Function Disable floppy Disable HD Disable LPT1 Disable COM2 Disable COM1 Other BIOS Phoenix BIOS Same DRAM in memory banks Different DRAM Quiet bus enabled Disabled 27256 EPROM (32K) 27128 EPROM (16K) EGA monitor with digital output Colour or Mono with digital output Enable Onboard display Disable Onboard display 80287-8 24M 80287-10 24M 80287-6 24M(20M) No oscillator 10 MHz 6 MHz Maths copro installed Enable VGA IRQ9 Memory Size 512K (256K*2) 640K (256K*2+64K*2) 1 Mb (256K*4) 2 Mb (1Mb*2) 4 Mb (1Mb*4) Enable external colour display Enable external Mono display S1 S2 S3 On Off On Off Off On Off Off Off On Off Off On Off Off On S4 S5 Off Off On On Off On Off On Off On E Jumper Position MGA Function Off Off On Off 286M-10TTL Jumper J1 J6 J7 J28 SW1 S1 SW1 S2 SW1 S3-5 SW1 S6 Position All out 3-14 4-13 5-12 6-11 1-16 & 2-15 1-2 2-3 1-2 2-3 1-2 On Off On Off S3 On Off On Off On Off S4 On On Off Off S5 On On On On Function Floppy primary address Floppy secondary address Disable COM1 Disable LPT2 Disable COM1 (2?) Enable Onboard display 80287 clock input used directly 80287 clock input divided by 3 80287 clock from system 80287 clock from 8234 27256 EPROM (32K) 2-3 27128 EPROM (16K) CPU speed ¼ of CLK 2 CPU speed ½ of CLK 2 I/O half speed I/O full speed Base Memory 256K 512K 640K 640+384K Onboard colour display Onboard Mono display 286M-12TTL Jumper J1 J6 J7 J14 J20 J28 SW1 S1 SW1 S2 SW1 S3-5 Position 2-15 In 5-12 In 6-11 In 3-14 In 4-13 In 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 On Off On Off S3 Off On Off On Off On Off S4 On Off Off On On Off Off S5 On On On Off Off Off Off Function Enable Onboard display Disable LPT1 Disable COM1 Out- floppy primary address In - secondary Disable COM2 80287 clock input used directly 80287 clock input divided by 3 80287 clock from system 80287 clock from 8234 0 wait state 1 wait state 80 ns DRAM 100 ns DRAM 27256 EPROM (32K) 27128 EPROM (16K) ¼ of CLK*2 (low) ½ of CLK*2 (high) I/O half speed I/O full speed Memory Size 512K 640K 1 Mb 2 Mb 2 Mb 2 Mb 4 Mb Off 229 230 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper SW1 S6 Position On Off Function Colour display Mono display 286S-10 Switch SW1 S1-2 SW1 S3 SW1 S4 Position S1 On On Off Off On Off On Off S2 On Off On Off Function Memory Bank 0 256K 640K 512K 1 Mb Colour display Mono display 16Kx2 BIOS 32Kx2 BIOS Bank 1 64-12 256-12 256-12 256-12 RAM 64-12 256-12 None 256-12 0-256K 0-640K 0-512K 0-512K 1-1.5 Mb 286S-12 Switch SW1 S1-2 SW1 S3-4 W2 W4 W6 W7 Position S1 Off Off On S3 On Off On Off 1-2 2-3 1-2 1-2 2-3 Out In S2 Off On S4 On On Off Off Function CPU Speed High (12/10 MHz) with I/O low (6/5 MHz) High, with I/O High Low, with I/O low Memory 256K 512K 640K 640K 12 MHz 0 wait state (80 ns DRAM) 12 MHz 1 wait state (100 ns DRAM) 12 MHz 16Kx2 BIOS (27128) 32Kx2 BIOS (27256) Mono display Colour display 286S-120 Switch J4,5 J11,3 SW1 S1-2 S3 S4 Position J4 Out In Out J11 1-2 2-3 2-3 2-3 S1 On Off On Off Off On J5 Out Out In J3 1-2 5-6 3-4 7-8 S2 On Off Function Wait state 0 wait state (fixed) 1 wait state (fixed) 0 or 1 (controlled by software) Maths copro speed 12 MHz 10 MHz 8 MHz 4.77 or 6 MHz EPROM size 32Kx2 (U51,52) or 32Kx2 and 32Kx3 (U53,54) 16Kx2 (U51,52) or 16Kx2 and BASIC ROM (U53,54) 1 Mb address 00000-9FFFF, 100000-15FFFF 512K at 00000-7FFFF or 1 Mb 00000-7FFFF, 100000-17FFFF Mono display Colour display 386B-25/33 Jumper J1-3 Position J1 J2 J3 Function Cache board E Jumper J6 J9 J10 J12 J15 Position Out 1-2 2-3 In* Out 1-2 2-3 1-2 2-3 In* Out 1-2 Out 1-2 2-3 Out Out In Function Disabled 32K cache card 64K cache card Onboard battery External battery 64K EPROM 32K EPROM Non-pipeline mode Pipeline mode Colour display Mono display Maths copro installed 386S Jumper J2 J3 Position In* Out 1-2 In 1-2 Out* Function Colour display Mono display Enable 80387 Disable 386s-16 Jumper J1 J2 JP22 JP23 JP25 JP26 J28 J29,30 J32-34 Position 1-2 2-3 1-2 2-3 J29 1-2 2-3 2-3 J32 Out 1-2 1-2 J30 2-3 2-3 1-2 J33 Out Out In J34 In Out Out Function Enable COM2 (2F8-2FF) Disable Enable COM1 (3F8-3FF) Disable Reserved Reserved Reserved Reserved Display type EPROM 16Kx2=32K 32Kx2=64K 64Kx2=128K Maths coprocessor Not installed 80287 80387 386s-20 Jumper J1 J3 J11 J16 J19 J20 J21-22 Position In Out Out In 1-2 2-3 All out* 1-2 2-3 J21 J22 Function Old 80386 New 80386 Maths copro Reserved Mono display Colour CPU speed software changeable Low speed High speed Asynchronous reset Synchronous reset only Maths coprocessor 231 232 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper Position In Out In Out Function 80387 installed Not installed S4 Off* Off On Off Function Reserved Keyboard controller pins 23&24 compatible with Phoenix 8242. 27512K EPROM 27256K EPROM 0E0000-0FFFFFh & FE0000-FFFFFFh (27512) 0F0000-0FFFFFh & FF0000-FFFFFFh (27256) Mono & Hercules mode Colour (EGA & VGA) 80387sx installed Not installed DRAM Type 100ns FPM (interleave enabled) 100ns FPM (interleave disabled) Normal 100 ns 120 ns (1 wait state) S4 Off* Off Function Reserved Keyboard controller pins 23&24 compatible with Phoenix 8242. 27512K EPROM 27256K EPROM 0E0000-0FFFFFh & FE0000-FFFFFFh (27512) 0F0000-0FFFFFh & FF0000-FFFFFFh (27256) Mono & Hercules mode Colour (EGA & VGA) 80387sx installed DRAM Type 100ns FPM (interleave enabled) 120 ns (1 wait state) 386sx Jumper JP1 JP2 J2 J3 S1 S2 S3,4 Position In* 1-2 2-3* 1-2 2-3* Off On Off On S3 Off* On Off Off 386SXB-16 Processor board Jumper J1 JP2 J2 J3 S1 S2 S3,4 Position In* 1-2 2-3* 1-2 2-3* Off On Off S3 Off* Off 386SXM-16 Jumper JP1 JP5 JP7 JP8 JP9 JP15 Position 1-14 4-11 5-10 6-9 7-8 1-2 2-3 In In* In* Out 1-2* 2-3 Function Disable floppy Disable COM2 Disable LPT1 Disable COM1 Disable HD EGA digital output Colour or Mono with digital output Enable VGA IRQ9 Enable VGA 16-bit VGA 8-bit VGA 27256 EPROM 27512 EPROM Switch 1 VGA S1 On S2 - S3 - S4 - S5 - E S1 Off Off Off Off Off Off On Off On Off CGA 40x25 CGA 80x25 EGA 200 line VGA 350 line MGA MGA Reserved Reserved Reserved Reserved S2 On On Off Off Off Off On On Off Off S3 Off Off On On On On Off Off Off Off S4 Off Off On On Off Off Off Off Off Off S5 On Off On Off On - Switch 2 Switch S1 S2 S3 S4 S5 S6,7 S8 Position On* Off On Off* On Off* On Off* S6 Off* On Off On On S7 Off* Off On On Function EGA/VGA Mono Reserved 256K/1Mb DRAMs Either type Enables 384K Disables 384K 1 Mb DRAMs used 256K DRAMs used Memory banks used 1 2 3 4 Enable maths coprocessor LT386SX/P Jumper J7 J8,9 J10 JP1 JP2 JP3 JP5,6 JP7 JP8,9 J10 Position In* Out* 1-2 2-3* JP5 2-3* 1-2 Out* JP8 1-2 Out* Out JP6 2-3* 1-2 JP9 1-2 Out* Function Enable floppy System operation Maths coprocessor Keyboard controller pins 23&24 compatible with Phoenix 8242. Reserved Display I/O decoder address is 2FXh Display I/O decoder address is 3FXh EPROM size 27256K 27512K Enable floppy DRAM access time 120 ns (1 wait state) 100 ns FPM, interleave enabled) 80387SX installed Switch 1 Switch S1 S2-4 Position On* Off S2 On On Off Off Function PS/2 monitor or compatible Analogue multi-frequency S3 On Off On Off S4 On On On On Automatic configuration MGA-locked CGA-locked EGA-locked 233 234 The PC Engineer’s Reference Book – Vol 2: Motherboards Switch Position On On Off S2 On On S3 Off Off Function VGA-locked Switch 2 Switch S1-3 S4 Position S1 On On Off On Function PS/2 monitor or compatible Analogue multi-frequency Timing registers write-protected Not write-protected PCSX20C Jumper J4 J5 J6 Position Out Out Out In Out In 1-2 2-3 2-3* Out 1-2 2-3 J7 J9 J11 J12,17 Function Reserved Reserved Colour VGA Mono VGA Non-interlaced monitor Interlaced Enable VGA Drain CMOS Retain CMOS Disconnect battery 16K cache 64K cache 386V-33E Jumper JP1 JP2 JP3 JP5,6 SW1-4 Position Out* In Out In* Out* In JP5 1-2 2-3* On* Off JP6 1-2 2-3* Function AT-compatible mouse interrupt PS/2 mouse interrupt Enable 80387 Disable Synchronise copro with CPU Asynchronous Keyboard type PS/2 AT-compatible Mono or Hercules display CGE, EGA or VGA 386SXB/486B Switch 1 Switch S1-2 S3 S4 S5 Position S1 On* On Off On Off On* Off On* S2 On* Off On On Function Onboard VGA VGA EGA CGA MDA Monitor scan rate 48-49KHz Monitor scan rate less than 48KHz Reserved Slow address decode Fast address decode E Switch S6 Jumper J1 J3 J4,7 J5,8,10 J6 J9 J12 J17,18 J19,23 J20 J21 J22 Position On Off* Function 8-bit ROM data width 16-bit ROM data width Position 1-2 2-3 J4 2-3 2-3 1-2 1-2 J5 2-3 1-2 2-3 1-2 2-3 1-2 2-3 2-3 2-3 1-2 2-3 1-2 J17 2-3 1-2* 2-3 J19 1-2 2-3 In* Out 1-2* J7 2-3 1-2 2-3 1-2 J8 2-3 2-3 1-2 1-2 2-3 2-3 1-2 Function Connection for KB1 keyboard connector on CPU card Enable or disable hardware with indivisual jumper settings Automatic configuration with port address 3F3h Parallel port LPT2 (378) LPT1 (3BC) LPT3 (278) Disable Serial ports COM1=UART1, COM2=UART2 Disable COM1, COM2=UART2 COM1=UART1, Disable COM2 Disable both COM2=UART1, COM1=UART2 Disable COM2, COM1=UART2 COM2=UART1, Disable COM1 Enable floppy 2 floppies Reserved Enable hard disk Disable Hard Disk Video memory 44256x2 44256x4 44256x8 Onboard VGA Disable VGA Enable VGA 44256x4 or 44256x2 44256x8 Enable VGA IRQ9 J10 2-3 2-3 2-3 Out 1-2 1-2 1-2 J18 1-2 2-3* 2-3 J23 Out 1-2 Elpina Ability Electron Co. www.ability-tw.com see Amptron ENPC www.enpc.com.tw www.enpcusa.com Award BIOS ID The last two numbers of the BIOS part number. Code 9C-00 BC Motherboard EP PT11 KL-21 Code HC-00 Motherboard EP PT11 235 236 The PC Engineer’s Reference Book – Vol 2: Motherboards EPoX Formerly Soltek. www.epox.com. See also Pronix Award BIOS ID The last two numbers of the BIOS part number. Code 9C 9C 9C-00 9C-00 0C-00 1C-00 1-00/02 3C 4C-00 AC Motherboard PP6-NF/NB P55-IT P55TV/TX/VX/VP EP 58MVP3C-m P55-TF P55-IT P54C-SP P55-SA GXA 486SPM KP6-LA/PP6-NS (PPro) Code AC AC-00 CC-00 EC HC IC JC KC LC MC Motherboard P55-TH/P54C-SP P55TX2/BT/KV/VP P55TV2 KP6-FX/FX2 P55-IT P55-IT P55-IT P55-IT P55-IT UMC I/O P55-IT Winbond I/O EP-3VCA2 Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) I/O Audio Description ATX Pentium III/Celeron 800/533 VIA Apollo Pro 133A Award 5 PCI 1 ANR 768 Mb PS/2 Mouse and Keyboard, 2 USB, 2 serial, 1 parallel, 2 EIDE, floppy VIA VT82C686A EP-3WXA4 Item Form Factor CPU Chipset Bus Memory (Mb) I/O Description ATX Celeron Intel 810 5 PCI 512 Mb 2 EIDE, floppy Notes Socket 370 UDMA/66 2 DIMM sockets EP-6CXA2C Item Form Factor CPU Chipset BIOS Bus Memory (Mb) I/O Video Comments Description ATX Pentium III/Celeron 820 Award 4.51PG 5 PCI/1 ISA 1024 Mb 2S, 1P, EIDE, floppy, 2 USB, 2 PS/2 AGP Notes Slot 1 UDMA/66 66-133 2 RIMM sockets CMI8738 sound. Good performance EP-6VBA Item Form Factor Description ATX Notes Notes Socket 370 133 FSB UDMA 66 3 DIMM sockets E Item CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) I/O Video Comments Description Pentium III/Celeron 550 Via Apollo Pro Plus Award 4.51PG 5 PCI/1 ISA 768 Mb 2S, 1P, EIDE, floppy, 2 USB, 2 PS/2 Notes Slot 1 UDMA/66 3 DIMM sockets AGP 2 year warranty EP-GXB-M Item Form Factor CPU Chipset Bus Memory (Mb) I/O Video Description ATX Pentium II/Xeon Intel 440GX 5 PCI/2 ISA 2 Gb 2 EIDE, floppy USB, IR Notes SMP Slot 2 4 DIMM sockets AGP 2x EP-MVP3G2 Item Form Factor CPU Cache Chipset BIOS Bus Memory (Mb) I/O Video Description ATX Pentium/K6 1 Mb Via MVP3 Notes 5 PCI/2 ISA 768 Mb 2 EIDE, floppy USB, IR UDMA/66 3 DIMM sockets Super Socket 7 AGP 2x P2-112A Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) I/O Video Performance Description ATX Pentium III/Celeron 550/366 Via Apollo Pro Award 4.51PG 5 PCI/2 ISA 384 Mb 2S, 1P, EIDE, floppy, 2 USB, 2 PS/2 P55-TH Same as Astar P55-TH P55-VP Same as California Graphics Sunray VIA Epson UK Notes Slot 1 124 MHz 3 DIMM sockets AGP Similar to Soyo SY-6BA+ 237 238 The PC Engineer’s Reference Book – Vol 2: Motherboards AX Portable Jumper J1,2 J3,4 J5 J6,7 J8,9 J10 S1,2 Position J1 A A B B J3 A A B B A B J6 A A B B J8 A A B B In Out S1 Off* Off On On Function J2 A B A B J4 A B A B J7 A B A B J9 A B A B S2 Off* On Off On Reserved 128K ROMs 512K ROMs 256K ROMs 640K base memory Reserved 512K base memory 256K base memory 1 ROM wait state inserted 2 ROM wait states inserted 1 16-bit ext RAM wait state inserted 2 16-bit ext RAM wait states inserted 3 16-bit ext RAM wait states inserted 4 16-bit ext RAM wait states inserted 8 MHz 80287 Reserved Reserved Reserved USA character set Danish character set No expansion RAM Reserved 2 Mb expansion RAM 4 Mb expansion RAM Switch 1 Switch S1 S2 S3 S4 Position Off On On On On Off Function Normal LCD Reverse video LCD LCD greyscale switch 1 LCD greyscale switch 2 LCD display CRT display Position On Off On Off On Off On Off On On Off Function External floppy select Parallel printer port select External floppy = A External floppy = B Enable COM2 Enable COM1 Double-width LCD fOnt Normal width LCD fOnt Enable internal video Add-in video is colour Add-in video is Mono Switch 2 Switch S1 S2 S3 S4 S5 S6 PC AX Jumper J1 Position A-C* B-C Function CPU clock 6/8/10 Inhibit E Jumper J2,3 J4 J5,6 Position J2 A-C* B-C A-C B-C A-C* B-C J5 A-C* B-C A-C B-C Function J3 A-C A-C B-C* B-C J6 A-C* A-C B-C B-C Reserved CPU clock as NPX clock (1/3) 8 MHz AS npx CLOCK Reserved 2 wait cycles for EPROM access at 10 MHz 1 wait cycles for EPROM access at 10 MHz Device access 4 wait cycles for ext 16-bit device access at 10 MHz 3 wait cycles for ext 16-bit device access at 10 MHz 2 wait cycles for ext 16-bit device access at 10 MHz 1 wait cycle for ext 16-bit device access at 10 MHz PC AX2 Jumper J1 J2,3 J4,5 Position A B J2 B A B A J4 A A B B J3 B B A A J5 A B A B Function 1 wait cycle for EPROM access 2 wait cycles for EPROM access Device access 4 wait cycles for ext 16-bit expansion bus DRAM 3 wait cycles for ext 16-bit expansion bus DRAM 2 wait cycles for ext 16-bit expansion bus DRAM 1 wait cycle for ext 16-bit expansion bus DRAM NPX clock speed=8 MHz Reserved Reserved NPX clock=2/3 CPU speed PC AX3-25 Jumper J1 J3,10 J5 J6 J7 J8 J9 Position 1-2 J3 1-2* 2-3 1-2 2-3 1-2* 2-3 1-2 2-3* 1-2 2-3 1-2* 2-3 J10 1-2* 2-3 Function Enable HD System clock speed 25 MHz 24 MHz 512K (Dip sw 8 must be Off) 256K (Dip sw 8 must be On) CPU reset time 16CLK2 CPU reset time 256CLK2 82385 reset time as CPU (J6=1-2) 82385 reset time as system reset IRQ 12 to mouse IRQ 12 available to system bus Enable password Disable (reset) Switches Switch S1,2 S3-7 Position S1 Off On On* S3 Off On S2 Off Off On* S4 S5 S6 Off Off S7 Off Off Function Base memory 256K 512K 640K Bk3 Bk2 Bk1 1Mb Bk0 1Mb 1Mb Total 1Mb 2Mb 239 240 The PC Engineer’s Reference Book – Vol 2: Motherboards Switch S8 S9 S10 Position On On Off On On On On On On On Off On On Off Off On Function Off Off Off On On Off Off Off On On On Off On On Off On On On Off On Off On On On On On PC Portable Front Panel Switches Switch S1 S2,3 S4 Position On Off S2 On Off On Off On Off S3 On On Off Off Function Normal LCD Reverse LCD LCD Screen Mode 0 1 2 3 LCD External CRT Rear Panel Switches Switch S1 S2 S3 S4 Position On Off On Off On Off On Off Function External floppy Parallel printer External floppy is B External floppy is A 1 floppy 2 floppies Serial port is secondary (378-3FFh) Serial port is primary (2F8-2FFh) Jumpers Jumper J1 J2 J3 J4 Position SHB L L H H A B HSPD Out In In -V In In Out SHA L H L H WSO * In Out EQ1 In Out In Function RAM Speed 125ns 250ns 375ns 500ns 64/128K System ROM 256K System ROM 0 wait states 0 wait states 1 wait state CPU select 8088 8086 V20 Off Off On Off On On On Off On On 1Mb 1Mb 4Mb 1Mb 1Mb 1Mb 1Mb 4Mb 1Mb 4Mb 4Mb 4Mb 1Mb 4Mb 4Mb 1Mb 1Mb 4Mb 4Mb 4Mb 4Mb 512K ROM 256K ROM 80ns DRAM, 4 wait states 100ns DRAM, 5 wait states CGA monitor Mono monitor 1Mb 1Mb 4Mb 1Mb 4Mb 4Mb 4Mb 1Mb 4Mb 4Mb 3Mb 4Mb 4Mb 6Mb 8Mb 9Mb 10Mb 10Mb 12Mb 16Mb E Jumper J5 Position Out A B Out Function V30 Floppy LED installed HD installed PC Switch J1 J2,3 SW1 S1-5 S6,7 S8 S9 S10 Position In S1 On Off On Off On Off On Off On Off On Off On S6 Off On Off On On Off Off Off S2 Off Off On On Off Off On On Off Off On On Off S7 Off Off On On S3 Off Off On On On On Off Off Off Off On On On S4 Off On Off Off Off Off Off Off Off Off On On On PC+ Switch 1 Switch S1 S2 S3 S4 S5,6 S7,8 Position On Off Off On Off On S5 On Off On Off S7 On Off S6 On On Off Off S8 On On Function A=360K A=1.2Mb Maths copro installed Not installed Reserved Parallel is primary Parallel is secondary Display type Internal video disabled Colour mode 40x25 Colur mode 80x25 Mono Floppies 1 2 Switch 2 Switch S1 S2 Position Function Reserved Reserved S5 Off On On On On On On On On On Off Off Off Function 8087 installed Reserved Total 256K 288K 320K 352K 384K 416K 448K 480K 512K 554K 576K 608K 640K Display type Mono Colour 80x25 Colour 40x25 Reserved 1 floppy 2 floppies Disable serial port Serial port on RS232 card 241 242 The PC Engineer’s Reference Book – Vol 2: Motherboards Switch S3 S4 S5 S6 S7 S8 J1,2 Position Function Reserved Reserved Enable parity checking Disable parity checking Reserved Primary internal serial interface Secondary internal serial interface Enable internal serial interface Disable internal serial interface Off On Off On Off On J1 1-2 2-3* J2 1-2 2-3* Position A B A B A B Function Enable floppy Disable floppy Parity RAM not installed Parity RAM installed BIOS ROM 128/64K BIOS ROM 256K Invalid setting of DACKO of 8237 Valid setting of DACKO of 8237 PCE Switch J1 J2 J3 Switch 1 Switch S1 S2 S3,4 S5,6 S7,8 Position On Off* On* Off S3 On Off On Off* S5 On Off On Off* S7 On* Off* On Off S4 On On Off Off* S6 On On Off Off* S8 On* On* Off Off Position S1 On Off On Off* S3 On Off On Off* S2 On On Off Off* S4 On On Off Off* Function Unenhanced keyboard Enhanced keyboard NPX not installed NPX installed RAM Size 256K 512K 576K 640K Display Type Reserved Colour 40x25 Colour 80x25 Mono Floppies 1 2 3 4 Switch 2 Switch S1,2 S3,4 Function Disable parallel port LPT3 IRQ7 enabled LPT2 IRQ7 enabled LPT1 IRQ7 enabled Disable serial port Disable serial port COM2 IRQ3 enabled COM1 IRQ4 enabled E EL2 Jumper JP1 JP2 JP3 JP4 JP5 JP6 JP7 JP8 JP9 Position A* A* B In* A* B A B A B Function Enable password Auxiliary device has IRQ12 IRQ12 available to other devices Reserved HD I/O channel On Reserved Reserved IRQ9 available to other devices IRQ9 assigned to video HMD549 default setting for 40 Mb HD Other HDC-embedded HDs (20 Mb) 256K EPROM 512K EPROM EL3-33 Jumper JP1 JP2 JP3 JP4 JP5 JP6 JP7 JP8 JP9 JP10 Position A* B A* B In* Out A* B A* B A* B A B* JP11 Function Enable password Disable password Auxiliary device has IRQ12 IRQ12 available to other devices Reserved HD I/O channel On HD I/O channel Off Reserved Reserved IRQ9 available to other devices IRQ9 assigned to video Enable HD Disable HD Enable internal VGA Disable internal VGA 2 wait states of 16-bit device on exp bus 1 wait state Reserved EL3S Jumper JP1 Position A B JP2 A* B JP3 JP4 JP5 JP6 JP7 A* B Function Enable password Disable password To reset password set J1 to B and turn power Off, then On, then Off. Set J1 to A. Auxiliary device has IRQ12 IRQ12 available to other devices Reserved Enable I/O channel assignment Disable I/O channel assignment Reserved Reserved IRQ9 available to devices in option slot IRQ9 assigned to video Position A* Function NPX not installed A* B CPU Board Jumper JP8 243 244 Jumper JP9 JP10 JP11 JP12 JP13 The PC Engineer’s Reference Book – Vol 2: Motherboards Position B A* B A* B A B* A B* Function NPX installed Enable HD Disable HD VGA colour enabled VGA colour disabled 2 wait states of 16-bit device on exp bus 1 wait state Reserved 256K ROM 512K ROM Video Board Jumper JP1 JP2 JP3,4 Position A B A B JP3 A A B B JP4 A B A B Function Turbo disabled Turbo enabled Write buffer disabled Write buffer enabled Data Transfer Rate 16-bit Reserved Reserved 8-bit EL3s+ Jumper JP12 JP13 JP14 JP15 JP16 Position A B A* B A* B Out* Function NPX not installed NPX installed Reserved Video BIOS duplicated at C0000h Not duplicated Bus wait state for HD access=2 Bus wait state for HD access=1 DRAM parity Off Multi I/O board Jumper JP1 JP2 JP3 JP4 JP5 JP6 JP7 JP8 JP9 JP10 JP11 JPT Position A B* A B* A B* A B* Out* In* Out A B* A B* Out In* Function Disable HD Enable HD Disable ROM setup Enable Enable floppy write protect Disable Erase CMOS password Enable CMOS password Reserved I/O channel ready On I/o channel ready Off Reserved Reserved DS1287 fitted Not fitted Video interlaced Not interlaced Reserved Power supply auto fan control Disable E EL4s Jumper JP12 JP13 JP14 JP15 JP16 JP17 JP18 Position In Out* In* Out In* Out In* Out A* B A* B A* B Function 2 wait states of 16-bit device on exp bus 1 wait state AT bus clock is ½ CPU clock Enables JP15 20 MHz CPU Reserved for 33 MHz 80486 AT bus clock is 1/3 CPU clock AT bus clock is ¼ CPU clock 486SX 486DX 486SX 486DX 486SX 486DX EISA TE/DE Jumper J1 4 2-3* Function Password Enabled Equity 486SX/25+ Jumper JP1 JP2 JP3 JP4 JP5 JP6 JP7 JP8-12 JP13,14 JP15 Position A B* A B* A B* A* B A* B A* B A* Memory 4 Mb* 8 Mb 9 Mb 10 Mb 12 Mb 16 Mb JP13 A B B A B* JP14 A A B Equity 486DX2/50+ As for Equity 486SX/25+ Eupacomputer Function 487SX installed 486SX installed 487SX NMI signal 486SX NMI signal 487SX FERRsignal 486SX FERR signal Enable VGA Disable Power on password enabled Disabled Colour display Mono display Mouse enabled JP8 JP9 JP10 B B B B B B A B B A A B A B A A A A Base Memory 640K* 512K 256K Early I/O ready signal enabled Normal I/O ready signal JP11 B A A A A A JP12 A A A A A A 245 246 The PC Engineer’s Reference Book – Vol 2: Motherboards www.eupacomputer.com Eurone LA www.eurone.com M919 Item Chipset BIOS Bus I/O Problems Comments Description UMC 8881/8886 AMI WinBIOS 3 PCI/4 ISA/1 VESA 2S, 1P Notes Look for v1.5 or 3.4, or make sure cable pinouts are correct. Use identical Memory (Mb) SIMMs Possibly manufactured by PC Chips. V 1.x same as Amptron DX-9500 and v3.x same as DX-9700. Cache Settings 1 bank 512K 256K 128K Config 128Kx8 64Kx8 32Kx8 JP8 1-2 1-2 1-2 JP8 3-4 3-4 3-4 JP8 5-6 5-6 JP8 7-8 JP9A Off Off Off JP9B On Off Off JP9C On On Off JP9D On On On 2 banks 1024K 512K 256K 128K Config 128Kx8 64Kx8 32Kx8 16Kx8 JP8 2-3 2-3 2-3 2-3 JP8 4-5 4-5 4-5 JP8 6-7 6-7 JP8 8-9 JP9A On Off Off Off Everex 286 Jumper SW1 S1,2 SW1 S3,4 SW2 S2,-4 W3 W12,13 W15 Position S1 On On Off Off S1 On On Off Off S2 On On Off On Off Off On W12 1-2 Off On S2 On Off On Off S2 On Off On Off S3 On On On Off On Off W13 1-2 S4 On Off On Off Off Off Function 8-bit slot wait states 3 4 5 3 16-bit slot wait states 0 1 2 0 Total RAM 512K 1Mb 2Mb 2.5Mb 2.5+Mb 4Mb Adds wait state Coprocessor speed 10 MHz copro 286/16 using 60 ns RAM 286/16 using 80 ns RAM JP9B On On Off Off JP9C On On On Off JP9D On On On On E 386 (Rev D) Jumper W3 W14 W15 W16 W17 Position In Out In Out In Out In Out In Out Function Maths copro installed Not installed STEP UP not installed STEP UP installed 256Kx9 installed 1Mbx9 installed 512K base memory 640K base memory Bus speed 6.7 MHz Bus speed 10 MHz 386 (Rev E) Jumper W3 W14 W15 W16 W17 W20 W21 Position In Out In Out In Out In Out In Out In In Out Function Maths copro installed Not installed STEP UP not installed STEP UP installed 256Kx9 installed 1Mbx9 installed 512K base memory 640K base memory Bus speed 6.7 MHz Bus speed 10 MHz Disable STEP UP parity checking 1 bank memory 2 banks memory AGI 286-12 Jumper W2 W3 W6 W7 W8 Position 6 In* 2 In* 3-4 In 3-4 Out 2-3* 2-3* Function 8-bit access 6 wait-states 16-bit access 2 wait-states 512K RAM 1Mb RAM Reserved Reserved AGI 386-12 Jumper S1-8 J5 Position Bootup Sequence 1Mb memory 8 MHz boot speed 16 MHz boot speed Mono display Colour display 1-2 2-3 Function S1 Off S2 On S3 Off S4 Off Off Off Off Off 10 MHz 80287 6 MHz 80287 AGI 386-20 Jumper S1-4 Position S1 On Off S2 On On S3 On On S4 On On Function Mobo memory 32-bit card 1Mb + 0 1Mb + 4 S5 Off N/A N/A N?A N/A S6 N/A On Off S7 Off On S8 247 248 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper W1 W2 Position Off Off 1-2 2-3 1-2 2-3 Off Off On Off On On Function 1Mb + 8 1Mb + 14 4 wait states for 8-bit cycle 5 wait states for 8-bit cycle 2 wait states for 16-bit cycle 1 wait state for 16-bit cycle EV 1800 Jumper W1 S1-2 W2 S1-4 Position S1 On On Off Off S1 On Off S2 On Off On Off S2 On Off S3 Off On S4 Off On S2 On Off S3 Off On S4 Off On Function Total RAM 256K 512K 640K 1Mb EPROM size 128K EPROM 256K EPROM EV 1801 Jumper W1 S1-4 W1 S5 W1 S6 W1 S7-8 W4 S1-4 W7,12 W8,11 W9 W10 W13 W14 Position S1 On Off On Off Off* S7 On On Off Off S1 On On Off W7 (8-bit) S8 On Off On Off S2 Off On Off W12 (16-bit) S3 On Off Off 1 2* 3 4 4* 5 6 W8 B A A W11 B A B A On On Off C On On Off B On Off On D On Off On S4 Off On Off Function EPROM size 128K EPROM 256K EPROM Zero wat-state 16-bit wait-state set by W12 Reserved Total RAM 256K 512K 640K 1Mb Parallel Port LPT1* LPT2 Disable Wait-state 1 2 3 4 5 6 Maths Coprocessor 5 MHz 80287 8 MHz 80287 10 MHz 80287 Reserved Reserved Reserved COM1/3 COM1 COM3 Disable COM2/4 COM2 COM4 Disable E Jumper W16 Position Function Reserved EV 1811 Jumper SW1 S1-4 SW2 E2 S1-2 E3 E9 E12 E13 E20 E21-23 Position S1 On Off S2 On Off S1 On On Off Off S2 On Off On Off E21 On Off E22 On Off S3 Off On E23 On Off E24 S4 Off On Function EPROM size 128K EPROM 256K EPROM Colour/Mono Total RAM 256K 512K 640K 1Mb Reserved Reserved Reserved Reserved Reserved Hard/Floppy Disk Controller Enable Disable Reserved Step 286-12/16 Jumper SW1 S1,2 SW1 S3,4 SW2 S2,-4 W3 W4-11 W12,13 W15 Position S1 On On Off Off S1 On On Off Off S2 On On Off On Off Off In W12 1-2 Out In In S2 On Off On Off S2 On Off On Off S3 On On On Off On Off W13 1-2 Step 386/20/25/33 Jumper P1 Position In Out Function 256K cache 128K cache S4 On Off On Off Off Off Function 8-bit slot wait states 3 4 5 3 16-bit slot wait states 0 1 2 0 Total RAM Bank 0 512K 1Mb 2Mb 2.5Mb 2.5Mb 4Mb Adds wait state Reserved Coprocessor speed 10 MHz 286/16 using 60 ns RAM 286/16 using 80 ns RAM 286/12 Bank 1 256K 256K 1Mb 256K 1Mb 1Mb 256K 1Mb 256K 1Mb 249 250 The PC Engineer’s Reference Book – Vol 2: Motherboards Step 386-20 (Rev D) As for 386 (Rev D). Step 386-20 (Rev E) As for 386 (Rev E). Step 386sx 20 Jumper JP3 JP8 J9 Position Out* In Out* 1-2 Function Enable cache light 512K EPROM 256K EPROM 82C711 chip floppy selector Tempo 286-16c Jumper JP2 JP4 JP5 JP9 Position 1-2,5-6,7-11 3-4,10-11 2-3,4-5 On* Off Function Reserved Reserved Reserved Enable video Disable Tempo 386sx Jumper P2-4 P5 P6 P7 P8 Position P2 Out In Out Out In Out In Out* In* Out In* Out In* P3 In Out Out In Out Out P4 In In In Out Out Out Function Total RAM 512K 1Mb 2Mb 2Mb 4Mb 8Mb ROM 3 wait-states ROM 2 wait-states 0 wait states RAM Read 1 wait state RAM Read 0 wait state RAM Write 1 wait state RAM Write Disable shadow RAM Tempo 386-25/33c Jumper SW1 S1-2 JP1 JP2 Position S1 On Off On Off 1-2 5-6 Expert www.expertcom.com S2 On On Off Off Function Monitor Type Super multifrequency Multifrequency Super VGA VGA, IBM, PS/2 and 8514 Floppy type Enable IRQ2 Enable Onboard video E 4045 Jumper JP1-4 JP6 JP7-9 JP16 JP18,33 JP39 CPU JP17 JP19 JP20 JP21 JP22 JP23 JP24 JP25 JP26 JP27 JP28 JP29 JP30 JP31 JP32 JP34 JP36 Position JP1 Open 1-2 2-3 1-2 2-3 JP7 Open Short Open Open 8-9 7-8 JP18 Open Short Short Open 486SX Open 1-2 Open Open Short Open open 1-2,3-4 Open Open 2-3 Open Open Open Open Open Open JP2 Open Open Short JP3 2-3 2-3 1-2 JP8 Open Short Short JP9 Short Short Short JP4 1-2 2-3 2-3 JP33 Open Short DX/DX2 Short 1-2 Open Open Short Open Open 1-2,3-4 Short Open 1-2 Short Short Open Open Open Open 486 Enh Short 1-2 Short Open Short Open Open 1-2,3-4 Short Open 1-2 Short Short Open Open Open Short Cyrix M6 Open 2-3 Short 2-3,4-5 2-3 Open Open 2-3,4-5 Open Open 2-3 Open Open Open Open Short Short Function Cache Size 128K 256K 512K Intel CPU Cyrix CPU CPU clock 25 MHz 33 MHz 40 MHz CPU 3x CPU 2.5x CPU 2x CPU voltage 3.3v (Q3 present) 5v (Q3 absent) Colour display Mono Cyrix M7 Short 2-3 Short 2-3,4-5 Short Open Open 2-3,4-5 Short Open 1-2 Short Short Open Open Short Short P24D Short 1-2 Short Open Open 1-2 1-2 1-2,3-4 Short Open 1-2 Short Short Open Short Open Short P24C Short 1-2 Short Open Short Open Open 1-2,3-4 Short Open 1-2 Short Short Open Short Open Short P24T Short 1-2 Short Open Open Open Open 1-2,3-4 Short 1-2 1-2 Short Open Open Short Open Short 251 252 Notes The PC Engineer’s Reference Book – Vol 2: Motherboards F Famous Technology Magic pro. www.magic-pro.com.hk Fentech See Taemung/Fentech Ferranti 2086 Links Link 1 2 3 4 5 6 Position On Off On Off On Off 7 Function 512K 640K CGA Mono Reserved Not used Not used 8 MHz 6 MHz Always on FIC First International Computer. www.fica.com Award BIOS ID The last two numbers of the BIOS part number. Code 00-00 Motherboard 486 PVT, VIP-IO/IO2, 486GVT2 Code 9C Motherboard PA 2012/VA 503+ or PA 2013 254 The PC Engineer’s Reference Book – Vol 2: Motherboards Code 2C-00 8C 8C 9 9-00 Motherboard PN 2000 PA 2005 (Vobis)/2006/VA501/2 PA 2007 PA 2002/2005 PA 2000 Code 9C 9C-00 H H-00 HC-00 Motherboard PA 2002/2005 PT 2006/2007/VT 530 PT 2003/PA 2000 PT 2000 PT 2000 or 2003/PA 2000 CPIIZ Item Form Factor CPU Chipset Bus Memory (Mb) I/O Video Description ATX Celeron Intel 440ZX 5 PCI/2 ISA 512 Mb 2 EIDE, floppy Notes Socket 370 UDMA/33 2 DIMM sockets AGP KA-6100 Item Form Factor CPU Chipset BIOS Bus Memory (Mb) I/O Audio Video Performance Description AT Pentium II/Celeron VIA Apollo Pro Award 4.51PGMA 3 PCI/2 ISA 768 Mb 2 EIDE, floppy, USB Yamaha OPL3-6AX Notes Slot 1 1 each shared 3 DIMM sockets AGP Slow, but still faster than the ECS P6BX-A+ KA-6110 Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) I/O Audio Video Description ATX Pentium II/Celeron 900 VIA Apollo Pro Plus Award 4.51PGMA 5 PCI/2 ISA 1 Gb 2 EIDE, floppy, USB Yamaha OPL3-6AX Notes Slot 1 If slot 1 survives 1 each shared UDMA/66 (33 cable) 4 DIMM sockets AGP PA-2012 Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) Video Performance Description ATX Pentium/K6 366 MHz VIA VP3 4 PCI/2 ISA 384 Mb SDRAM 768 Mb EDO 1 Mb Notes Socket 7 3 DIMM sockets AGP Fast F SD11 Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) I/O Video Performance Description ATX Athlon AMD 751/VIS 686A AMI 5 PCI/1 ISA 768 Mb 2 EIDE, floppy Notes Slot A UDMA/66 3 DIMM sockets AGP Fast VB-601 Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) I/O Video Performance Description ATX Pentium II/Celeron 450 440 BX Award 4.51PGMA 5 PCI/2 ISA 1 Gb 2 EIDE, floppy, USB Notes Slot 1 1 each shared 4 DIMM sockets AGP Average VL-601 Item Form Factor CPU Speeds (MHz) Bus Memory (Mb) Video Performance Problems Description ATX Pentium II 333 MHz 5 PCI/2 ISA 384 Mb SDRAM Notes Slot 1 3 DIMM sockets AGP Bus speed 66 MHz. Fair performance. Removal of SDRAM means removing AGP card. Fine-Pal Company www.finepal.com Firenze Award BIOS ID The last two numbers of the BIOS part number. Code 1-00 Motherboard 486 VL.VII 486 VL.VII Maybe Genoa or Freetech models Code Motherboard 255 256 The PC Engineer’s Reference Book – Vol 2: Motherboards First International Computer See FIC Fittec www.spiderwebhk.com/fittec FKI See Fong Kai Industrial Flagpoint Some association with Vtech. Award BIOS ID The last two numbers of the BIOS part number. Code 9C-00 BC-00 Motherboard FPM P5VX Road Runner VIA 512K Code Motherboard Flamingo Something to do with Lucky Star? Award BIOS ID The last two numbers of the BIOS part number. Code CC-00 FC Motherboard MB-FLM-TX01 5I-VX1C Code Motherboard MB-FLM-TX01 Same as Lucky Star 5ITX1 5I-VX1C Same as Lucky Star P54CE Flexus Flytech Award BIOS ID The last two numbers of the BIOS part number. Code AC-00 Motherboard A47 Green PC Fong Kai Industrial www.fkusa.com Code Motherboard F Award BIOS ID The last two numbers of the BIOS part number. Code AC-00 Motherboard SL586VT-II Code Motherboard SL 586V Rev 1.1 Jumper J7/8 J9-10 Position J11 J13-14 A-E J9 On On Off J10 On Off On J13 Off On Off On A B C D E Off J14 Off Off On On Function EPROM Voltage Host bus speed 50 MHz 60 MHz 66 MHz CMOS Clear CPU Clock Multiplier 1.5x 2x 3x 2.5x 3.5v 3.3v 3.2v 2.9v 2.8v 2.5v SL 586VT-II Same as Winco SL 586VT-2 Fordlian See also RedFox Award BIOS ID The last two numbers of the BIOS part number. Code 9C AC AC Motherboard 6IFXA FL51HXA 5IVXA Code AC BC Motherboard 5IVXB 5ITXA rev A 5IVXA Same as Aprocom Nex586v Formosa Freetech Free Computer Technology www.freetech.com May make boards for AMP If there is no FAB # underneath, it is not a Freetech motherboard. 257 258 The PC Engineer’s Reference Book – Vol 2: Motherboards Award BIOS ID The last two numbers of the BIOS part number. Code 0-01 9C AC AC BC-00 CC Motherboard 486F38X 586F62 P586F62T 586F63T 586F60 P5F76 (Falcon) Code CC-00 DC-00 HC HC-00 NC(-00) NC-01 Motherboard 586F63T 586F60 586F52 486F55 586F61(-PB) 586F52XS ver D 486F38(X) X model same as Genoa 486VLGX4 CPU Clock Speed (MHz) 25 33* 40 50 JP20 On Off On Off JP19 Off On Off On JP17 On On Off Off L2 Cache Size Size (Kb) 128 256* 256 512 512 JP12 1-2 2-3 1-2, 3-4 2-3, 4-5 1-2,3-4 JP21 Off Off Off On On Tag 8K8 16K8 16K8 32K8 32K8 Data 32K8x4 32K8x8 64K8x4 64K8x8 128K8x8 486F39 As for 486F38 486F41 As for 486F38 P5F76 Activei? Freeway www.freeway.co.jp Fugutech Fugu Tech Enterprise Co. www.fugu.com Award BIOS ID The last two numbers of the BIOS part number. Code 1C 2C(-00) 4C Motherboard M530 M 505/Neptune DP M507 Code 9C HC Motherboard M701 M 507 F M507 Aka Concord COA-507, ATC 1000 or Amptron PM 7600 M530 Aka Concord COA-530 Full Yes International See FYI FYI Full Yes Industrial Corp. www.fyi.com.tw Award BIOS ID The last two numbers of the BIOS part number. Code 9C AC AC Motherboard 82430VX P55C (SMC) FYI VIA 597 82430VX P55C (UMC) 82430VX P55C UMC chipset. Same as BJMT Nimble VX Code BC C-00 Motherboard 82430VX P55C/MMX FYI 597 259 260 Notes The PC Engineer’s Reference Book – Vol 2: Motherboards G Gateway See ALR Gemlight www.gemlight.com.hk www.gemlight.com Makes DTK boards Award BIOS ID The last two numbers of the BIOS part number. Code 0 2 2C 31C 32 Motherboard GMB 486SG GMB P54SPS GMB P54SPS GMB 486SPS GMB 486SPS Code 9C A AC-00 JC KC GMB-P54PSI Same as DTK PAM 00541-E1? GMB-P57SAX Item Form Factor CPU Speeds Chipset Description ATX Pentium II 233 MHz SiS Notes Slot 1 50-75 MHz Genoa Genoa Systems Corp. www.genoasys.com Motherboard GMB P56IPS GMB P54SPS P54C PCI GMB P54SPV/P56SPC GMB P54PSI GMB P54PSI v1 262 The PC Engineer’s Reference Book – Vol 2: Motherboards Award BIOS ID The last two numbers of the BIOS part number. Code AC Motherboard Turbo Express 586HX v T1B Code Motherboard 486VLGX4 Same as Freetech 486F38X Turbo Express PII Item Form Factor CPU Memory (Mb) Description ATX Pentium II 512 Mb SDRAM 1 Gb EDO Video Performance Comments Notes Slot 1 4 DIMM sockets AGP Fastish Poor layout Turbo Express 586HX v T1B Actually a Freetech P586F62T - same as Genoa Turbo Express 586HX v T1B G-host G486PLB Jumper JP1 JP2 JP3 JP5-9 JP10-12 JP14-16 JP100 Position On Off 1-2 2-3 1-2 2-3 JP5 Off On 1-2* JP14 On Off On On Off JP6 Off On JP7 Off Off JP15 1-2 2-3 1-2 JP16 2-3 Off 1-2 JP8 Off On JP9 Off Off Function Colour Mono External power good Internal power good Discharge CMOS Charge CMOS Cache size 64K 256K W/B dirty bit – leave On CPU type 486DX 486SX 487SX Local bus video card is G-HOSTS3/ISA Local bus video card is G-HOST4000 Giantec Gigabyte www.gbt-tech.co.uk www.giga-byte.com www.gigabyte.com.tw Award BIOS ID The last two numbers of the BIOS part number. G Code 02-00 03-00 1 1-00 1C-00 3 9C 9C 9C-00 9C-00 Motherboard GA 586AP rev2 GA 586AL/S rev 2A GA 486VF Rev 8B GA 486 IM or 486VS GA 586IP v1.6 GA 486AM GA 686BX/LX or 586DX/TX GA 586AS GA 586AVS/S GA 5486AL Code AC AC BC(-00) DC-00 HC IC KC NC PC Motherboard GA 6BA GA 586ATV GA 586HX/VX/(ATX) GA 586TX3 GA 586AT/T2 or 486AM/S GA 586AT GA 586ATE/ATM GA 586-ATEP GA 586ATM/P Rev 5 or ATE GA-486AM Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Comments Description Baby AT 486 Notes 22 x 25 cm Intel/Cyrix, including P24 UMC 888X Award Flash 3 PCI/4 ISA 128 1 Mb 2S, 1P, Floppy, EIDE V4.50pg 4 72-pin sockets Video card in third PCI slot GA-486IM Item Form Factor CPU Speeds (MHz) Chipset BIOS Cache (K) Problems Description Notes 486 Intel/Cyrix UMC 888X Award Flash 256 V4.50b Will not boot OS/2 with an NCR controller made by Intel or Asus and a Cardex Challenger in a PCI slot. An S3/864 card will allow booting, but serial ports go undetected, or may work poorly GA-486IS Item Form Factor CPU Speeds (MHz) Chipset Bus Memory (Mb) Cache (K) I/O Description Notes 486 25, 33 Saturn I 4 PCI/ 4 ISA SX, DX, DX2, P24T. 5v only. Rev 2 4 72-pin SIMMs (parity, non-parity) 256 NCR On-board SCSI GA-586AL/S Item CPU Speeds (MHz) Chipset BIOS Comments Description Pentium 60/66 ALi Award Notes Doesn’t like OS/2 263 264 The PC Engineer’s Reference Book – Vol 2: Motherboards GA-586AP Item CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Description Pentium 75, 90, 100 ALi Award Green Flash 3 PCI/4 ISA 1 Mb 2 S, 1P, Floppy (2.88) Notes Supports NCR 53c810-based GA-410 NCR 810 PCI SCSI card 1 each shared Up to 6 sockets Asynchronous, write-back IDE CMD 640 GA-586AT(E) Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Comments Jumper A6-7 B6-7 JP2 JP3 JP4,5 JP6 JP6 Description ¾ Baby AT Pentium/P54CT 75-133 Triton Green Flash Award 3 PCI/4 ISA 4-128 512 2S, 1P, Floppy, 2 EIDE Position A6-A7 B6-B7 Close Open 1-2 2-3 JP4 2-3 1-2 1-2 None 1-2 1-2,3-4 3-4 3.3v None shared Up to 6 72-pin sockets (double/single) ATE version may not like ATI cards – possible BIOS upgrade to fix. Chipset IDE drivers may not like Warp. JP5 2-3 1-2 2-3 Close Open Function Single voltage 3.3v CPU Dual voltage 2.5v/3.3v CPU VRE spec CPU VR or standard spec CPU 256K cache 512K cache Host bus speed 50 MHz 60 MHz 66 MHz 75-100 MHz (CPU 1.5x) 120/133 MHz (CPU 2x) 150/166 MHz (CPU 3x) Reserved Ver 3.x mainboard 120/133 MHz (CPU 2x) 75-100 MHz CPU (CPU 1.5x) Ver 2.x mainboard Reserved JP12 Connectors Jumper J4 J5 J6 J7 J8 J9 J10 Notes Function Green connector Green LED Reset Turbo Switch Turbo LED Speaker Power LED & Keylock G GA-586IP Item CPU Speeds (MHz) BIOS Bus Memory (Mb) Cache (K) Problems Description P54CT 60/90 or 66/100 Award Flash 4.50g 4 PCI/4 ISA 768 256 or 512 Kb Notes All PCI allow busmastering 6 72-pin slots Add /A:0 /I switches to basedev line of Adaptec 2940 driver. Also, set the Int A jumper on the board itself. Some problems with ATI cards due to PCI slots 0 and 1 being modified. Comments GA-586SGM Item Form Factor CPU Speeds (MHz) Chipset Bus Memory (Mb) Video Audio Performance Description ATX Pentium 233 SiS 5591 3 PCI/3 ISA 768 Notes Socket 7. AMD, Cyrix and Intel 3 DIMM sockets. 3.3 v AGP No wavetable Slow Yamaha 715E-S GA-586TX Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) Jumper JP 6 SW 1 Sw 2,3,8 SW 4-7 Description ATX Pentium 233 TX Award 4 PCI/3 ISA 256 512 Position On Off On Off 2 Off On On Off Off On On Off Off 4 Off Off Off Off 3 Off Off On On Off Off On On Off 5 Off Off Off On Notes Socket 7. AMD, Cyrix and Intel 2 DIMM sockets. 3.3 v 8 Off Off Off Off Off On On On On 6 Off Off On Off 7 On Off Off Off Function ATX power supply Normal 60 MHz ext clock 66 MHz CPU Ratio 1.5 2 2.5 3 3.5 4 4.5 5 5.5 Voltage Auto 2 2.1 2.2 265 266 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper Position Off On On On On Off Off Off Off On On On On On Off Off On On Off Off On On Off Off On On On Off On Off On Off On Off On Off On Off On Off Off Off Off Off On On On On On On On On Function 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 GA-5AX Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Video Performance Description ATX Pentium/K6 550 ALi Aladdin V Award 4.51PG 4 PCI/3 ISA 768 Mb 512 2 EIDE, floppy, USB Notes Socket 7 Rev 4 up to 400 MHz 1 each shared 3 DIMM sockets AGP Average. GA-686BLX Item Form Factor CPU Speeds (MHz) Bus Memory (Mb) Description Baby AT Pentium II 366 4 PCI/2 ISA 512 SDRAM 1 Gb EDO Video Performance Comments Notes Slot 1 1 each shared 4 DIMM sockets AGP Above average AT/ATX power connectors DIP Switches Switch 1-4 Position 1 On Off On Off On Off 2 Off Off On On Off Off 3 On On Off Off Off Off 4 On On On On On On *Manual says opposite 66 MHz = JP2, 3, 4 at 1-2 GA-6BXF Item Form Factor CPU Speeds (MHz) Chipset Description ATX Pentium II/Celeron 550 440 LX Notes Slot 1 Function Ratio 3x 3.5 4 4.5 5 5.5 Ext Clk 66 MHz 66 MHz 66 MHz 66 MHz 66 MHz 66 MHz CPU 200 MHz 266 MHz* 233 MHz* 300 MHz 333 MHz 366 MHz G Item BIOS Bus Memory (Mb) Cache (K) I/O Video Performance Description Award 4.51PG 4 PCI/3 ISA 1 Gb Notes 1 each shared 4 DIMM sockets 2 EIDE, floppy, USB Adaptec AIC-7890 LVD SCSI AGP SCSI good, otherwise average GA-6CX Item Form Factor CPU Chipset BIOS Bus Memory (Mb) I/O Video Performance Description ATX Pentium III Intel 820 Award 4.51PG 5 PCI/1 AMR RDRAM The usual AGP Notes Slot 1 Dual BIOS depends on board 2 RIMM sockets 4x Look also at Aopen AX6C or SuperMicro PIIISCE GA-6WMM7 Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) I/O Comments Description ATX Celeron Notes Socket 370 100 FSB Intel 810 Award 3 PCI/1 ISA 512 Mb The usual, plus joystick and audio UDMA/66 2 DIMM sockets Secret jumper not in docs for 100 FSB GA-6WXM7 Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) I/O Audio Description ATX Celeron Notes Socket 370 Intel 810 5 PCI/1 ISA 512 Mb 2 EIDE, floppy Yamaha YMF744BR UDMA/66 2 DIMM sockets GA-71X Item Form Factor CPU Chipset BIOS Bus Memory (Mb) I/O Video Description ATX Athlon AMD-750 Award 5 PCI/2 ISA 768 Mb The usual Notes Slot A UDMA/66 3 DIMM sockets AGP 2x 267 268 The PC Engineer’s Reference Book – Vol 2: Motherboards GA-7ZXR Item Form Factor CPU Chipset Bus Memory (Mb) I/O Description ATX Notes Socket A Via KT133 5 PCI/1 ISA 3 DIMM sockets PS/2 Mouse and Keyboard, 2 USB, 2 serial, 1 parallel, 2 EIDE, floppy Video AGP Global Circuit Technologies www.gcttech.com Award BIOS ID The last two numbers of the BIOS part number. Code 8C 9C Motherboard GCT 8IV GCT 6IV Code 9C-00 EC-00 Motherboard MediaGX-GCT GCT 8ITB GCT 8ITB Same as DataExpert ExpertColor TX430II Global Impact Award BIOS ID The last two numbers of the BIOS part number. Code GC Motherboard C586HX Code Motherboard C586HX Same as DFI G586IPC or Crusader C586HX Global Legate Zaapa. www.zaapa.com H Hewlett Packard www.hp.com Vectra 286-12 Jumper S1 S2 S3 S4 S5 Position Off* On Off* On Off* On Off* Off* On S6 Function Video IRQ9 disabled Enabled VGA Enabled Disabled Mouse IRQ12 enabled Disabled Power on password enabled Option ROMs on backplane enabled Option ROMs on memory board enabled Reserved Vectra 386-25 Jumper S1 S2 S3 S4 S5 Position On* Off On* Off On* Off On* Off On* Off S6 Function Power on password enabled Disabled Option ROMs Enabled Disabled Cache memory enabled Disabled I/O channel synchronous 8.3MHz I/O channel asynchronous 8MHz Mouse IRQ12 enabled Disabled Reserved Vectra 386/N Jumper S1 Position Off* Function Mouse IRQ12 enabled 270 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper S2 S3 S4 S5 S6 Position On Off* On Off* Off* On Off* On Off* On Function Disabled Video IRQ9 disabled Enabled VGA Enabled Passwords enabled Disabled EPROM information valid EPROM information erased Security mode disabled Enabled Reserved S7 Vectra 386s-20 As for 386/N, except S8 is reserved. Vectra ES Jumper SW1 C1 SW1 C2 SW2 C1-2 SW3 S1-2 SW3 S3 SW3 S4 SW3 S5 SW3 S6 SW4 S1-5 SW4 S6 Position On Off On Off Both On* S1 On Off On On Off On Off On Off Function Option ROMs Off Option ROMs On 80287 uses system clock 80287 system clock divided by 3 Reserved S2 On Off Off Base memory 640K 512K 256K I/O channel 8 MHz I/O channel 12 MHz Fast boundary at 640K Fast boundary at 512K HP-HIL enabled HP-HIL disabled Reserved On Extended memory up to 000000h On Off 16-bit boards using MEMCS16 at 8 MHz 16-bit boards using MEMCS16 at 12 MHz Vectra ES12 As for Vectra ES Holco See Shuttle HSB HSB Computer Labs. www.hsb-labs.com MB/MS4144PC100 Item CPU Description 486 Notes Does not work with a DX4-50/100 H Item Chipset BIOS Bus Memory (Mb) Cache (K) I/O Description SiS 85C496/85C497 AMI Green 3 PCI/4 ISA 128 1 Mb 2 S, 1 P, Floppy, IDE Notes Non-flash None shared 72-pin SIMMs 256 standard IDE is Winbond chipset. NCR SCSI controller Hsing Tech See PC Chips Award BIOS ID The last two numbers of the BIOS part number. Code 1-00 Motherboard Cheetah Code Motherboard Hyundai Super 286x Jumper A1-2 B1-2 A3-4 B3-4 A4-5 B4-5 A6-7 B6-7 A7-8 B7-8 SW1 S1-3 SW1 S4 Position In* Out In* Out In* In* Out In* In* Out In* In* Out In* In* Out S1 On Off On Off On On* Off S2 On On Off Off On S3 On On On On Off S2 On On Off Off S3 On On On On Function Enable floppy Disable Enable HD Disable Enable LPT1 Enable LPT1 Disable Enable LPT2 Enable LPT2 Disable Enable COM1 Enable COM1 Disable Enable COM2 Enable COM2 Disable Base Ext Memory 512K 0K 640K 0K 640K 384K 640K 1408K 640K 3456K Colour monitor Mono Super 286E Jumper SW1 S1-3 SW1 Position S1 On Off On Off On* Function Base Ext Memory 512K 0K 640K 0K 640K 384K Reserved Colour monitor 271 272 Jumper S4 W1 W2 W3,6 W4,5 The PC Engineer’s Reference Book – Vol 2: Motherboards Position Off On* Off On* Off 1-2* 2-3 Off 1-2* 2-3 Off Function Mono Enable HD Disable Enable FD Disable COM1 COM2 Disable LPT1 LPT2 Disable Super 286E+ Jumper SW2 S1 SW2 S2 S3-6 Position Function Reserved Off On S3 On Off S7 On* Off On* Off Off* On Off* On Mono monitor Colour Parallel port LPT1 LPT2 Disabled Serial port COM2 Disabled Serial port COM1 Disabled Enable HD Disable Enable FD Disable Reserved Reserved S8 S9 S10 S4 Off On S5 Off On S6 On On Off S11 S12 Super 286TR Jumper J5 J9 J7 Position Out* In 1-2* 2-3 All out 1-2* 2-3 All out Function Mono display Colour COM1 I/O 3F8 COM2 I/O 2F8 Disable LPT1 I/O 378 LPT2 I/O 278 Disable Super 386C Motherboard Jumper J8,9 J10-13 J11-12 Position J8 1-2* 2-3 J10 1-2 2-3 J11 1-2 2-3 J9 1-2* 2-3 J11 1-2 2-3 J12 1-2 2-3 J12 1-2 2-3 J13 1-2 2-3 Function Printer LPT1 LPT2 Serial ports Port 1=COM2, Port 2=COM1 Port 1=COM1, Port 2=COM2 Serial ports COM2 at port 1 enabled COM1 at Port 1 enabled H CPU Board Jumper JMP1 JMP2 JMP3 Position 1-2 2-3 In Out In Out Function Mono display Colour Enable pipeline Disable Enable 80387 Disable Super 386D Jumper W1 W2,3 W4 W6 W7 W8 W9 SW1 S1-2 S3 S4 Position In Out W2 1-2 2-3 W3 1-2 2-3 1-2 2-3 All out* In Out 1-2 2-3 1-2 2-3 Both On Function 8 MHz DMA clock 4 MHz DMA clock Cache size 64K (16Kx4) 256K (64Kx4) Reserved Low CPU speed Reserved High CPU speed Mono display Colour display 1Mb RAM chips in Bank 1 256K RAM chips in Bank 1 1Mb RAM chips in Bank 0 256K RAM chips in Bank 0 Total 32-bit RAM installed Reserved Enables 2nd bank on motherboard Super 386N Jumper S1 S2 S3 S4 S5 S6 S7 S8 E1,2 Position On* Off On* Off On* Off On* Off On* Off On* E1 1-2 2-3 Super 386N+ As for Super 386D E2 1-2 2-3 Function 80387 installed Not installed 1 Mb DRAMs 256K DRAMs 2 banks memory (U98-U105) 1 bank memory (U98-U101) Enable extended memory (384K) Disable Colour display Mono Enable cache Reserved Reserved EPROM 27256 27512 273 274 The PC Engineer’s Reference Book – Vol 2: Motherboards Super 386S/20L Jumper S1 S2,3 S4 Position On* Off S2 On* Off On Off* S3 Off* On Function Colour display Mono Video Enable Disable Enable 8514 Disable Super 386SE Jumper S1 S2 S3 S4 S5 S6 S7 S8 S9 S10 S11 S12 Position On Off* On Off* On* Off On Off On Off On Off* On* Off On* Off On* Off On Off* Off* Function Half speed I/O cycle (8 MHz) Full speed (16 MHz) Coprocessor installed Not installed Colour display Mono IRQ7 Not selected IRQ5 Not selected Enable parallel port LPT2 Select parallel port LPT1 Enable parallel port LPT1 Disable Enable serial port COM2 (2F8h) Disable Enable COM1 Disable Disable IDE Enable Enable floppy Reserved Super 386ST Jumper S1 S2 S3 S4 S5 S6 S7 S8 Position On Off* On Off* On* Off On* Off On* Off On* Off On* Off On* Off Function IRQ5 enabled Disabled IRQ7 enabled Disabled HD enabled Disabled Enable COM1 Disable Enable LPT1 Disable Floppy enabled Disabled Enable COM2 Disable CRTC colour mode CRTC Mono H Super 386STC Jumper S1 S2 S3 S4 S5 S6 S7 S8 S12 Position On* Off On* Off On* Off On Off* On Off* On Off* On* Off On Off* On* Off Function Enable COM2 Disable Colour video tape Mono Enable parallel port Disable Enable HD Disable Disable floppy Enable Enable LPT2 Enable LPT1 Enable COM1 Disable IRQ5 for LPT2 Not selected IRQ7 for LPT1 Not selected Super 386T Jumper SW1-2 S-4 W8,9 SW2 S1 S2 S3 S4 SW3 S1 S2 S3 S4 W1 W2-3 Position S4 On Off Off On Off On Off On Off On On On On On On W2 1-2 2-3 W8 Front Rear W3 1-2 2-3 W4 W9 Front Rear Function Reserved SIMMs 1Mb 256K Enable COM1 Disable Enable COM2 Disable Enable LPT Disable LPT1 LPT2 IRQ4 for COM1 IRQ3 for COM2 IRQ5 for LPT IRQ7 for LPT Fast DMA clock Cache size 64K 256K Reserved Super 486/33i Jumper W1 W2,3 W4 W5 W6 Position Out* W2 1-2* 2-3 1-2* 2-3* 1-2 W3 1-2* 2-3 Function Reserved Cache size 64K (16Kx4) 256K (64Kx4) Reserved Reserved Low CPU speed (not used) 275 276 Jumper W7 W8 W9 S1 S2 S3 S4 The PC Engineer’s Reference Book – Vol 2: Motherboards Position 2-3 Out In Out 1-2* 1-2* Function Reserved High speed (not used) Mono display Colour Reserved Reserved Enable 2nd bank on motherboard SIMM type Total 32-bit RAM Total 32-bit RAM I IBM IntelliStation 6588 Jumper A,B Position A 3-5 1-3 1-3 2-4 4-6 2-4 4-6 3-5 2-4 4-6 1-3 3-5 5-6* 4-5 A C D D Boot Block B 3-5,4-6 1-3,2-4 2-4,3-5 Function CPU Speed 233 MHz 266 MHz 300 MHz FDD read-Only FDD read/write Clear CMOS Normal CMOS Reserved Setup disabled Setup normal enabled Reset password Normal password Normal Recover 6888 As for 6588 6899 Switch 1-6 7 8 J8 Position CPU speed 200 MHz On* Off* On 1-2* 2-3 Function 1 2 On Off Enable serial B Normal diskette operation Diskette Read-only Password enabled Disabled (Clear CMOS) 3 On 4 On 5 Off 6 N/A 278 The PC Engineer’s Reference Book – Vol 2: Motherboards Opal Alaris Leopard LX 486SLC2 Rev C Jumper JP6 Position 1-2 2-3 Function 128K cache 64K cache PC 300 6272 Switch 1-4 5 6 J6 Position 1 Off Off Off On On On On Off* Off* On 1-2* 2-3 2 Off Off Off Off Off On On 3 On On Off On Off On Off 4 On Off On Off On Off On 2 On On Off 3 On On On 4 Off Off Off Function CPU speed 75 MHz 90 MHz 100 MHz 120 MHz 133 MHz 150 MHz 166 MHz Reserved Enable diskette write Write protected Password enabled Disabled (Clear CMOS) 6282 As for 6272 6562 Switch 1-4 Position 1 On Off Off 5 6 7 8 Off* Off* Off* Off* On 1-2* 2-3 J15 Function CPU speed 166 MHz 200 MHz 233 MHz 1&2 = bus/processor core ratio 3&4 = local bus frequency Reserved Enable Ethernet Privilege Access Password (PAP) disable Enable diskette write Write protected Normal CMOS reset 6592 Switch 1,2 3,4 5 6 7 Position 1 (BF0) On On Off Off 3 CLK0 On Off On Off Off* Off* Off* 2 (BF1) On Off On Off 4 CLK1 On On Off Off Function Bus/CPU core ratio 2/5 ½ 1/3 2/3 (2/7 P55C) Host bus speed 50 MHz 60 MHz 66 MHz Test Mode Reserved Enable Ethernet Privilege Access Password (PAP) disable I Switch 8 J15 Position Off* On 1-2* 2-3 Function Enable diskette write Write protected Normal CMOS reset PC 330/350 6577 Switch 1-4 6 J15 Position 1 Off Off Off On On On On Off Off* On 1-2 2-3* 2 Off Off Off Off Off On On On 3 On On Off On Off On Off Off 4 On Off On Off On Off On On Function CPU speed 75 MHz 90 MHz 100 MHz 120 MHz 133 MHz 150 MHz 166 MHz 200 MHz Normal diskette operation Diskette Read-Only Password disabled (Clear CMOS) Enabled 6587 As for 6577 PC 340 6560 Switch JP3 JP4 JP9 JP11 JP13 JP14,17 JP19 JP21 JP22 JP23 Position Short* Short* 1-2* 2-3 1-2* 2-3 1-2* 2-3 JP14 1-2 3-4 1-2,3-4 3-4 1-2,3-4 1-2,3-4 1-2 2-3* 1-2* 2-3 1-2* 2-3 1-2* 2-3 JP17 Open Open Open 1-2 1-2 1-2,3-4 Function Enable Onboard VGA Enable PS/2 mouse Normal CMOS Clear CMOS Enable Flash Flash lock 256K cache 512K cache CPU speed 75 MHz 90 MHz 100 MHz 120 MHz 133 MHz 166 MHz STD 3.3v VRE 3.52v FDD normal FDD write protect Non-linear burst, async cache Linear burst sync cache HDD detect Don't detect 279 280 The PC Engineer’s Reference Book – Vol 2: Motherboards PC 330/350 65X5 Jumper MRD WP PWD Position 1-2 2-3* 1-2 2-3* 1-2* 2-3 Function Modem no answer on ring Modem answer on ring Disable writing to diskette Enable Password enabled Password reset 65X6 Pentium based Switch SW1 1-2 SW1 3-5 SW1 6-8 J4A2 J4J1-2 J4K1 J4K2 J5J1 J9C1 Position 1 On Off Off 3 Off* On* Off Off 6 Off Off Off Off 1-2* 2-3 4-5 J4J1 2-3,4-5 2-3,5-6 1-2,4-5 2-3,5-6 1-2,4-5 2-3,5-6 1-2,4-6 1-2* 2-3 4-5* 5-6 1-2* 2-3 4-5* 5-6 1-3 1-2 5-7 In 5-7 Out 4,6,8 1-3* 5-7 2 N/A Off On 4 Off Off Off* Off 7 Off On Off N/A J4J2 2-3,4-5 2-3,4-5 2-3,4-5 2-3,5-6 2-3,5-6 1-2,5-6 1-2,5-6 5 Off Off Off Off 8 Off Off On N/A Function L2 cache size 0 256K 512K CMOS setup Password enabled Password reset Normal CMOS Reset CMOS Host bus/CPU speed 50/75 MHz 60/90 MHz 66/100 MHz Reserved Normal BIOS Flash enabled Reserved CPU speed 75 MHz 90 MHz 100 MHz 120 MHz 133 MHz 150 MHz 166 MHz ISA ¼ PCI ISA 1/3 PCI CMOS setup access enabled CMOS setup access disabled Normal CMOS Reset CMOS Normal password Reset password Normal BIOS flash reset Reset ISA 1/8 clock speed ISA 1/6 clock speed Reserved STD voltage CPU VRE voltage CPU 657X Switch JP3,4 Position JP3 1-2 2-3 JP4 1-2 2-3 Function Local Bus VESA PCI I Switch JP8,9 Position JP8 1-2 2-3 None* 3-4 1-2 1-2* 2-3 1-2* 2-3 1-2* 2-3 JP16 1-2* 2-3 J23 1-2 2-3 2-3 JP35 On Off Off Off Off JP10 J13 JP14 JP15 JP16,17 J23-24 JP35-37 JP9 1-2 2-3 JP17 Close* Open J24 Open Open Closed JP36 Off On On Off Off JP37 Off On Off On Off Function ECP DMA DRQ3* DRQ1 3x clock speed 2x clock speed Other Program flash disable Enable Normal CMOS Clear CMOS Enable Onboard VGA Disable Cache size 256K 128K CPU 486SX* 486DX P24T CPU speed 20 MHz 25 MHz* 33 MHz 40 MHz 50 MHz 658X As for 657X PC 360-S150 6598 Switch 1-2,4-5,7-8,11-12 2-3,5-6,7-8,10-11 13-14 14-15* 16-17 17-18* 19-20 20-21* 22-23 23-24* 26-27 Function 150 MHz CPU, 60 MHz bus, 30 MHz PCI, 7.51 MHz ISA 150 MHz CPU, 60 MHz bus, 30 MHz PCI, 7.51 MHz ISA Password reset Password enabled CMOS reset CMOS Normal Setup disabled Setup enabled Flash recovery enabled Normal Reserved PC730/750 6875 Switch J19 J21-24 J26-27 Position Open* Short J21 Off J2t 2-3 2-3 J22 Off J27 2-3 1-2 J23 On J24 On Function 2/3 bus core ratio ½ bus core ratio Cache size 256K Bus/CPU speed 50/75 60/90 (120) 281 282 The PC Engineer’s Reference Book – Vol 2: Motherboards Switch J28 J29 WP J40 PWD Position 1-2 1-2* 2-3 1-2 2-3* 1-2* 2-3 Function 66/100 (133) Mouse enabled Disabled Diskette read-Only Normal diskette operation Password enabled Password reset (Clear CMOS) 1-2 6876 As for 6875 6877 Switch 1-4 5 6 J15 Position 1 Off Off Off On On On On On* Off Off* On 1-2* 2-3 2 Off Off Off Off Off On On 3 On On Off On Off On Off 4 On Off On Off On Off On Function CPU speed 75 MHz 90 MHz 100 MHz 120 MHz 133 MHz 150 MHz 166 MHz Enable Administrator password Disable Normal diskette operation Diskette read-Only Password enabled Disabled (Clear CMOS) 6885 As for 6875 6886 As for 6875 6887 As for 6877 PC/XT The PC has two sets of switches and 5 expansion slots; the XT 1 set of switches and 8 slots. Switch Bank 1 Switch 1 Position Off On 2 3,4 5,6 Off 3 On Off On Off 5 Off Off On On 4 On On Off Off 6 Off On Off On Function PC – boot from floppy XT – normal POST PC – boot into basic (e.g. not floppy) XT – loop POST Coprocessor installed Memory banks used on XT (PC memory) 0 only (16K) 0 and 1 (32K) 0, 1 and 2 (48K) All 4 (64K) Video adapter Mono or more than 1 CGA 40 x 25 CGA 80 x 25 With own BIOS I Switch 7,8 Position 7 On Off On Off 8 On On Off Off Function Floppies 1 2 3 4 Switch Bank 2 PC only Memory 16 32 48 64 96 128 160 192 224 256 288 320 352 384 416 448 480 512 544 576 608 640 1 1 1 1 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 2 1 1 1 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 Position Front Rear Front Rear Function Colour Mono 512K 256K 3 1 1 1 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 AT Jumper Display J18 PS/1 486SX - 20/25 Jumper JP1 JP3 JP7 JP8 JP9 JP10 JP14 JP15 JP16 Position In Out In Out In Out 1-2 2-3 In Out 1-2 2-3 In Function Enable Video MEMCS16 Disable Normal CLK/2 Turbo Reset Run Internal Battery External Colour Mono Disable onboard VGA Enable Reserved Reserved Parity Check enable 4 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 283 284 Jumper JP17 JP23 JP24 JP26 The PC Engineer’s Reference Book – Vol 2: Motherboards Position Out In Out In Out In Out In Out Function Disable Enable Video INT9 Disable 486SX 486DX Enable PS/2 interrupt (12) Disable 1-2 Beeper Speaker 486SX - 20/25 Jumper JP3 JP4 JP7 JP8 JP9 JP10 JP16 JP17 JP20 JP200 JP 201 JP206 JP207 JP208 JP209 JP304 JP305 Position In Out In Out In Out 1-2 2-3 In Out 1-2 2-3 In Out In Out In Out 1-2 2-3 1-2 2-3 In Out 1-2 2-3 In Out In Out 1-2 2-3 In Out Function Normal CLK/2 Turbo 27512 EPROM 27256 EPROM Reset Run Internal Battery External Colour Mono Disable onboard VGA Enable Parity Check enable Disable Enable VideoMEMCS16 Disable 1-2 Beeper Speaker Direct cache 2-way mapping Direct cache 2-way mapping 128K cache >128K Reserved Reserved 486SX 486DX Enable PS/2 Mouse Interrupt (12) Disable Disable video BIOS Enable Enable Video INT9 (may be shorted) Disable Value Point 386SLC Jumper J8 J12 J13 J16 J17 Position 1-2 3-4 Function Password bypass Beeper bypass Power on LED HD LED IRQ9 VGA enable I 486SX-25 Jumper JP8 JP10 JP11 JP17 JP23 JP24 J26 Position 1-2 1-2 1-2 4-5 Open* Close In 1-2 Function Battery select VGA disable Power on LED HD LED VGA enable SX CPU DX CPU Enable mouse Beeper enable 486DX-33 Jumper JP4 JP8 JP10 JP17 JP11 Position To rear To front Open 1-2 4-5 Open* Close JP23 JP200,1,6 JP209 J20 In* Left Function BIOS select (DX/DX2) Battery select VGA enable VGA enable Power on LED HD LED SX CPU DX CPU Cache configuration Enable mouse Beeper enable ICP Impression Products www.impression-brand.com Informtech Award BIOS ID The last two numbers of the BIOS part number. Code CC-00 Motherboard 533T-AT Code Motherboard 533T-AT Same as Kamei something or Mentor BN 533T Intel www.intel.com Advanced/AL Item CPU Speeds (MHz) Description Pentium 75-133 Notes 285 286 The PC Engineer’s Reference Book – Vol 2: Motherboards Item Chipset BIOS Bus Memory (Mb) Cache (K) I/O Video Description Triton AMI 3 PCI/4 ISA 128 256 Floppy, IDE, serial, parallel, game, PS/2 mouse and keyboard. ATI Mach64 Comments Notes NCR 53c810 SCSI not supported 1 each shared. Use triton.exe FPM/EDO Pipeline burst Up to 2 MB of DRAM. For OS/2, install for VGA then latest Mach64 drivers. Used by Gateway. Advanced/MN Item CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Video Audio Description Pentium 75-133 Triton AMI 3 PCI/4 ISA 128 Mb conventional/EDO 256 Kb asynchronous Floppy, IDE, serial, parallel, game S3/Trio32 Notes NCR 53c810 SCSI not supported 1 each shared. Use triton.exe. Up to 2 MB of DRAM Advanced MN/LPX Low profile version of Advanced MN. Advanced/ZP Item CPU Speeds (MHz) Chipset BIOS Bus Description Pentium 75-133 Triton AMI 3 PCI/4 ISA Memory (Mb) Cache (K) I/O Video Performance 128 256 Kb asynchronous Floppy, IDE, serial, parallel, game S3 Trio64 Notes NCR 53c810 SCSI not supported 1 each shared. PCI Bus mastering. Use triton.exe. Large capacitor next to CPU prevents full-length PCI in adjacent slot. FPM/EDO Asynchronous European model Turn off PCI bursting for slow video cards. Advanced/ZE Item CPU Speeds (MHz) Chipset BIOS Bus Description Pentium 75-133 Triton AMI 4 PCI/5 ISA Memory (Mb) Cache (K) I/O Video Performance 128 256 Floppy, IDE, serial, parallel, game S3 Trio64 Notes NCR 53c810 SCSI not supported 1 each shared. PCI Bus mastering. Use triton.exe. Large capacitor next to CPU prevents full-length PCI in adjacent slot. FPM/EDO Asynchronous European model Turn off PCI bursting for slow video cards. I Advanced/EV Item CPU Speeds (MHz) Chipset BIOS Bus Description Pentium 75- 166 Triton AMI 3 PCI/4 ISA Notes Memory (Mb) Cache (K) I/O Video Audio Performance 128 512 Floppy, IDE, serial, parallel, game S3 Trio64 SoundBlaster 16 NCR 53c810 SCSI not supported 1 each shared. PCI Bus mastering. Use triton.exe. Large capacitor next to CPU prevents full-length PCI in adjacent slot. FPM/EDO Synchronous European model Turn off PCI bursting for slow video cards. To overclock 120 -33, set: CPU Sw 2 Sw 6 75 OFF OFF 90 OFF OFF 100 OFF OFF 120 On On 133 On On Does not like Adaptec 2940UW Comments AL440LX Item Form Factor CPU Chipset BIOS Bus Memory (Mb) I/O Video Audio Performance Jumper J8B2 Description ATX Pentium II 440LX Notes 4 PCI/2 ISA 384 2S, 1P, USB, IR, PS/2, EIDE, floppy 1 each shared SDRAM. 3 DIMM sockets Slot 1 AGP Sometimes Average Yamaha OPL3-SAX Position Normal 2-3 None Front Panel header 1-2 3-4 6-11 13-16 18-20 22-23 24-27 Config Recovery Function BIOS uses current configuration and passwords for booting After POST, setup runs automatically (use to change setup) BIOS attempts to recover BIOS configuration (needs diskette) Power On Sleep IR HDD LED Power LED Reset Speaker AltServer Item CPU Speeds (MHz) Chipset Description 2 Pentium 75-90 Neptune Notes Sw 7 On OFF On OFF On Sw 8 OFF OFF On OFF On 287 288 The PC Engineer’s Reference Book – Vol 2: Motherboards Item BIOS Bus Memory (Mb) Cache (K) I/O Video Performance Comments Description AMI Flash 3 PCI/4 ISA 256 256 Cirrus Logic 5430 Notes NCR 53c810 SCSI not supported 1 each shared. Bus mastering 8 72-pin sockets Asynchronous AIC7870 fast/wide SCSI controller. 512 Kb- 1 Mb RAM Only increases by 30% with 2nd 90 MHz CPU and SMP OS. Primarily for servers B1440ZX Item Form Factor CPU Chipset BIOS Bus Memory (Mb) Cache (K) I/O Video Description ATX Notes Socket 370 440 ZX AMI 2 PCI 256 Mb 66 MHz 2 EIDE, floppy, USB AGP B486ED (D) Item CPU Speeds (MHz) Bus Memory (Mb) Cache (K) I/O Description 486 33-100 PCI 64 256 2S, 1P, IDE Notes DX4, P24T. CPU gives board’s model number; e.g. with DX2 it would be B486ED8D266. 72-pin SIMMs (parity/non-parity) 128 standard CA 810 Item Form Factor CPU Chipset Bus Memory (Mb) I/O Description Micro-ATX Celeron Intel 810 4 PCI 512 Mb 2 EIDE, floppy Notes Socket 370 UDMA/66 2 DIMM sockets D815EEAAL Item Form Factor CPU Speeds Chipset BIOS Bus Memory (Mb) I/O Video Description ATX Pentium III/Celeron 1000/700 Intel 815E Award 5 PCI 512 2 EIDE, floppy, USB, IR, Intel 82562 LAN Intel 815 GMCH Notes Socket 370 FSB 133 UDMA/100 3 DIMM sockets AGP E186194 Item Form Factor CPU Chipset Description ATX Pentium II/Xeon Intel 440GX Notes SMP Slot 2 I Item Bus Memory (Mb) I/O Video Description 6 PCI/1 ISA 2 Gb 2 EIDE, floppy, USB, IR, Intel 82558 LAN Notes UDMA/33 4 DIMM sockets AGP 2x KN-6000 CPU Speed Clock Ratio FREQ1 FREQ2 FREQ3 233 MHz 3.5x Off Off On 266 MHz 4x On On Off 300 MHz 4.5x Off On Off 333 MHz 5x On Off Off Leave jumpers for clock multiplier set to defaults CLK1: 1-2, CLK2: 2-3. FREQ4 On On On On KN-6010 As for KN-6000 PA-2005 Intel CPU 200 MHz 166 MHz 150 MHz 133 MHz 120 MHz 100 MHz 90 MHz 75 MHz Host 66 66 60 66 60 66 60 50 CLK1 1-2 1-2 2-3 1-2 2-3 1-2 2-3 2-3 CLK2 2-3 2-3 1-2 2-3 1-2 2-3 1-2 2-3 CLK3 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 Ratio 3x 2.5x 2.5x 2x 2x 1.5x 1.5x 1.5x FREQ1 1-2 2-3 2-3 2-3 2-3 1-2 1-2 1-2 FREQ2 2-3 2-3 2-3 1-2 1-2 1-2 1-2 1-2 AMD CPU K6-200 K6-166 K5-PR200 K5-PR166 K5-PR150 K5-PR133 K5-PR120 K5-PR100 K5-PR90 K5-PR75 Host 66 66 60 66 60 66 60 66 60 50 CLK1 1-2 1-2 1-2 1-2 2-3 2-3 1-2 2-3 1-2 2-3 CLK2 2-3 2-3 2-3 2-3 1-2 1-2 2-3 1-2 2-3 2-3 CLK3 1-2 1-2 1-2 1-2 2-3 1-2 1-2 1-2 1-2 1-2 Ratio 3x 2.5x 2x 1.75x 1.75x 1.5x 1.5x 1.5x 1.5x 1.5x FREQ1 1-2 2-3 1-2 2-3 2-3 1-2 1-2 1-2 1-2 1-2 FREQ2 2-3 2-3 2-3 2-3 2-3 1-2 1-2 1-2 1-2 1-2 Cyrix CPU 200MX 166MX P200+ P166+ P150+ P133+ P120+ Host 66 60 75 66 60 55 60 CLK1 2-3 1-2 1-2 2-3 1-2 1-2 2-3 CLK2 1-2 2-3 1-2 1-2 2-3 1-2 2-3 CLK3 1-2 1-2 2-3 1-2 1-2 1-2 1-2 Ratio 2.5x 2.5x 2x 2x 2x 2x 2x FREQ1 2-3 2-3 2-3 2-3 2-3 2-3 2-3 FREQ2 2-3 2-3 2-3 1-2 1-2 1-2 1-2 289 290 The PC Engineer’s Reference Book – Vol 2: Motherboards CPU Voltage P54C VRE (3.384) P54C STD,VR(3.4-3.6) P55C (2.8V/3.3V) 2.5V/3.3V 2.7-2.9V/3.3V 2.9V/3.3V VR1 1-2 3-4 5-6 5-6 5-6 7-8 VR2 1-2,3-4 1-2,3-4 5-6,7-8 5-6,7-8 5-6,7-8 5-6,7-8 Description ATX Pentium Pro 450KX (Mars) Intel Flash 4 PCI/3 ISA 128 2S, 1P, IR Notes Performance Item Form Factor CPU Chipset BIOS Bus Memory (Mb) I/O 2 each shared Parity, non-parity or ECC FPM RAM (60 ns) PIO-3 Intel 486SX 486DX/DX2/P24S DX4ODP/P24D P24T DX4 JC1 2-3 1-2 1-2 1-2 1-2 JC2 1-2 1-2 1-2 1-2 1-2 JC3 Off Off Off Off Off JC4 Off 2-3 2-3 1-2 1-2 JC5 Off Off Off On Off RNA Off Off Off Off Off RNC Off Off Off Off Off RNI Pin1 Pin1 Pin1 Pin1 Pin1 AMD 486DX2 (V) Enh DX2 (SV) DX4 (V) Enh486DX4(NV,SV) X5 JC1 1-2 1-2 1-2 1-2 1-2 JC2 1-2 1-2 1-2 1-2 1-2 JC3 On Off Off Off Off JC4 Off 2-3 Off 1-2 2-3 JC5 Off Off Off Off Off RNA On Off On Off Off RNC Off Off Off Off Off RNI Off Pin1 Off Pin1 Pin1 Other CPUs UMC U5SD UMC U5S, U5SLV Cyrix DX, DX2 TI DX2, DX4 Cyrix DX4, 5x86 Function JPW1,2 JK1-4 JCP Video JC1 1-2 2-3 1-2 1-2 1-2 Pins JPW1 JPW2 1-2 Off 2-3 Off Off 1-2 Off 2.3 Doesn't matter JK1 JK2 1-2 1-2 2-3 1-2 1-2 2-3 1-2 1-2 On Off On JC2 1-2 2-3 1-2 1-2 1-2 JC3 Off Off Off Off Off JK3 2-3 2-3 1-2 1-2 JC4 Off Off Off Off 1-2 JK4 2-3 1-2 2-3 1-2 JC5 Off Off Off Off Off RNA On On Off Off Off Description CPU voltage 3.3v 3.45v 3.6v 4v 5v CPU clock 50 MHz 40 MHz 33 MHz 25 MHz Clear password CGA Others RNC Off Off On On Off RNI Off Off Off Off Last pin I Function JW1,2 JW3,4 J1 J3 J11 JT1,JCK Pins 1-2 2-3 1-2 2-3 1-2 2-3 On Off On Off 1-2 2-3 291 Description COM2 standard Infra Red ECP DMA1 ECP DMA 3 Intel 28F001BX-T EPROM (12v) SST 29EE101 (5v) TB LED Green mode TB LED Turbo mode LPT output only Bidirectional 50MHz or 40MHz clock 25MHz or 33MHz clock Plato Function J1H3 J1H4 Pins 1-2 2-3 1-2 Description 50 MHz host bus clock 60 MHz host bus clock 66 MHz (undocumented) In front of 2nd PS/2 slot (from the right). Premiere Item CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Problems Description Pentium 60/66 Mercury AMI Flash 3 PCI/5 ISA 128 256 2S, 1P, IDE Notes 1 each shared 4 72-pin sockets CMD for IDE. NCR SCSI built in. Problems with SCSI? With ATI card and internal modem, turn off intelligent remapping of COM ports to avoid conflicts with ATI card and COM 4. For NCR SCSI controller, set IRQ9 to “used by ISA card” during install. If running SCSI as boot drive, turn off drive C: timeout for faster boot. Premiere II Item CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Description Pentium 75/90/100 Neptune AMI Flash 3 PCI/5 ISA 128 256 2S, 1P, IDE Performance Problems Notes 1 each shared 4 72-pin sockets RZ1000 for IDE. NCR SCSI built in. The SMC chip controlling serial ports should have the letters "GT" after it for trouble-free communications. To overclock to 100 MHz, move "reserved" jumper (J13) to pins 1 & 2 (75 MHz side) from 2 & 3 (75/90 side). Need v1.00.10.AX1 of BIOS to fix problems with Access Timing (GAT) and BackMaster 1.1. With ATI card and internal modem, turn off intelligent remapping of COM ports to avoid conflicts with ATI card and COM 4. For NCR SCSI controller, set IRQ9 to 'used by ISA card' during install. If running a SCSI as boot drive, turn off drive C: timeout for faster boot. PN-6010 Function CLK1,2 Pins CLK1 CLK2 Description External clock 292 The PC Engineer’s Reference Book – Vol 2: Motherboards Function JK1-4 VR1 Pins 1-2 2-3 FREQ1 Close Open Close Open All open 1-2,3-4 Off Off FREQ2 Close Open Open Close Description 66 MHz 60 MHz Clock Ratio 4x 3.5x 3x 2.5x ATX power supply Standard power supply FREQ3 Open Close Close Close PN-6210 Function CLK1,2 JK1-4 Pins CLK1 1-2 2-3 2-3 FREQ1 On Off On Off On CLK2 2-3 1-2 2-3 FREQ2 On Off Off On On FREQ3 Off On On On On Description External clock 66 MHz 60 MHz 50 MHz Clock Ratio 4x 3.5x 3x 2.5x 2x FREQ4 On On On On On PT-2006 Intel CPU Host CLK1 233 MHz* 66 2-3 200 MHz 66 2-3 166 MHz 66 1-2 150 MHz 60 1-2 133 MHz 66 2-3 120 MHz 60 1-2 100 MHz 66 2-3 90 MHz 60 1-2 75 MHz 50 2-3 * use P55C voltage (for MMX) CLK2 1-2 1-2 2-3 2-3 1-2 2-3 1-2 2-3 2-3 Ratio 1.5x 3x 2.5x 2.5x 2x 2x 1.5x 1.5x 1.5x FREQ1 1-2 1-2 2-3 2-3 2-3 2-3 1-2 1-2 1-2 FREQ2 1-2 2-3 2-3 2-3 1-2 1-2 1-2 1-2 1-2 CLK2 1-2 1-2 2-3 1-2 2-3 1-2 Ratio 2.5x 2x 2x 1.5x 1.5x 1.5x FREQ1 2-3 2-3 2-3 1-2 1-2 1-2 FREQ2 2-3 1-2 1-2 1-2 1-2 1-2 AMD CPU K5-PR166 K5-PR133 K5-PR120 K5-PR100 K5-PR90 K5-PR75 Host 66 66 60 66 60 50 CLK1 2-3 2-3 1-2 2-3 1-2 1-2 Cyrix CPU M2 200 M2 180 M2 166 P166+ P150+ P133+ P120+ Host 66 60 66 66 60 55 50 CLK1 2-3 1-2 2-3 2-3 1-2 1-2 2-3 CLK2 1-2 2-3 1-2 1-2 2-3 1-2 2-3 Ratio 3x 3x 2.5x 2x 2x 2x 2x FREQ1 1-2 1-2 2-3 2-3 2-3 2-3 2-3 FREQ2 2-3 2-3 2-3 1-2 1-2 1-2 1-2 I CPU Voltage <10/96 P54C STD, VR (3.384V) P54C VRE (3.49V) P55C (2.8V/3.3V) VR1 1-2 3-4 7-8 VR2 5-6,7-8 5-6,7-8 1-2,2-3 CPU Voltage >10/96 P54C STD, VR (3.4-3.6) P54C VRE (3.3) P55C (2.8V/3.3V) 2.5V/3.3V 2.9V/3.3V VR1 1-2 3-4 7-8 9-10 5-6 VR2 5-6,7-8 5-6,7-8 1-2,3-4 1-2,3-4 1-2,3-4 Function CPS SRAM1 R146 Pins Open Close SRAM1 1-2 1-2 2-3 2-3 2-3 R146 On On On Open Open Description Normal Clear password Onboard cache 256K 0 256K 512K 0 Module (>COAST 3) 0 256K 256K 0 512K PT-2011 Intel CPU 233 MHz 200 MHz 166 MHz 150 MHz 133 MHz 120 MHz 100 MHz 90 MHz 75 MHz Host 66 66 66 60 66 60 66 60 50 CLK1 1-2 1-2 1-2 2-3 1-2 2-3 1-2 2-3 Not supported CLK2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 CLK3 2-3 2-3 2-3 2-3 2-3 2-3 2-3 2-3 Ratio 1.5x 3x 2.5x 2.5x 2x 2x 1.5x 1.5x FREQ1 1-2 1-2 2-3 2-3 2-3 2-3 1-2 1-2 FREQ2 1-2 2-3 2-3 2-3 1-2 1-2 1-2 1-2 FREQ3 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 AMD CPU K6-233 K6-200 K6-166 K5-PR200 K5-PR166 K5-PR150 K5-PR133 K5-PR120 K5-PR100 K5-PR90 K5-PR75 Host 66 66 66 66 66 60 66 60 66 60 50 CLK1 1-2 1-2 1-2 1-2 1-2 2-3 1-2 2-3 1-2 2-3 Not supported CLK2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 CLK3 2-3 2-3 2-3 2-3 2-3 2-3 2-3 2-3 2-3 2-3 Ratio 3.5x 3x 2.5x 2x 1.75x 1.75x 1.5x 1.5x 1.5x 1.5x FREQ1 1-2 1-2 2-3 1-2 2-3 2-3 1-2 1-2 1-2 1-2 FREQ2 1-2 2-3 2-3 2-3 2-3 2-3 1-2 1-2 1-2 1-2 FREQ3 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 Cyrix CPU M2 200 M2 180 M2 166 M2 150 P200+ Host 66 60 66 60 CLK1 1-2 2-3 1-2 2-3 Not supported CLK2 1-2 1-2 1-2 1-2 CLK3 2-3 2-3 2-3 2-3 Ratio 3x 3x 2.5x 2.5x FREQ1 1-2 1-2 2-3 2-3 FREQ2 1-2 2-3 2-3 2-3 FREQ3 1-2 2-3 2-3 2-3 293 294 The PC Engineer’s Reference Book – Vol 2: Motherboards CPU P166+ P150+ P133+ P120+ Host 66 60 55 50 CLK1 1-2 2-3 2-3 Not supported CPU Voltage >10/96 P54C STD, VR (3.384V) P54C VRE (3.49V) P55C (2.8V/3.3V) K5 "B" (3.5V) K6-233 (3.2/3.3V) K6-166/200 (2.9V/3.3V) Cyrix 3.52V (028) Cyrix 6x86L (2.8V/3.3V) CLK2 1-2 1-2 2-3 VR1 1-2 3-4 9-10 1-2 5-6 7-8 1-2 9-10 CLK3 2-3 2-3 2-3 Ratio 2x 2x 2x FREQ1 2-3 2-3 2-3 VR2 1-2,3-4 1-2,3-4 5-6,7-8 1-2,3-4 5-6,7-8 5-6,7-8 1-2,3-4 5-6,7-8 PT-2200 Intel CPU 233 MHz 200 MHz 166 MHz 150 MHz 133 MHz 120 MHz 100 MHz 90 MHz 75 MHz Host 66 66 66 60 66 60 66 60 50 CLK1 1-2 1-2 1-2 2-3 1-2 2-3 1-2 2-3 2-3 CLK2 2-3 2-3 2-3 1-2 2-3 1-2 2-3 1-2 2-3 Ratio 1.5x 3x 2.5x 2.5x 2x 2x 1.5x 1.5x 1.5x FREQ1 1-2 2-3 2-3 2-3 2-3 2-3 1-2 1-2 1-2 FREQ2 1-2 2-3 2-3 2-3 1-2 1-2 1-2 1-2 1-2 AMD CPU P166 P150 P133 P120 P100 P90 P75 Host 66 50 66 60 66 60 50 CLK1 1-2 2-3 1-2 2-3 1-2 2-3 2-3 CLK2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 Ratio 2x 2x 1.5x 1.5x 1.5x 1.5x 1.5x FREQ1 2-3 2-3 1-2 1-2 1-2 1-2 1-2 FREQ2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 Cyrix CPU M2 200 M2 180 M2 166 P166+ P150+ P133+ P120+ Host 66 60 66 66 60 55 50 CLK1 1-2 2-3 1-2 1-2 2-3 1-2 2-3 CLK2 2-3 1-2 2-3 2-3 1-2 1-2 2-3 Ratio 3x 3x 2.5x 2x 2x 2x 2x CPU Voltage > 10/96 P54C STD, VR (3.4-3.6) P54C VRE (3.3) P55C (2.8V/3.3V) 2.5V/3.3V VR1 1-2 3-4 5-6 7-8 VR2 1-2,2-3 1-2,3-4 5-6,7-8 5-6,7-8 CPU Voltage < 10/96 P54C STD, VR (3.384V) VR1 1-2 VR2 1-2 FREQ1 1-2 1-2 2-3 2-3 2-3 2-3 2-3 FREQ2 2-3 2-3 2-3 1-2 1-2 1-2 1-2 FREQ2 1-2 1-2 1-2 FREQ3 1-2 1-2 1-2 I CPU Voltage < 10/96 P54C VRE (3.49V) P55C (2.5V/3.3V) Function CPS Pins Open Close VR1 3-4 5-6 VR2 3-4 5-6 Description Normal Clear password SE 440BX(2) Item Form Factor CPU Chipset BIOS Bus Memory (Mb) I/O Video Audio Performance Problems Description ATX Pentium II/Katmai 440BX AMI 3 PCI/1 ISA 768 Mb 2S, 1P, USP, PS/2 AGP Yamaha XG Notes Slot 1 3 DIMM sockets UDMA 3 Poor Poor documentation SR 440BX Item Form Factor CPU Chipset Bus Memory (Mb) I/O Video Audio Description ATX Pentium II 440BX 4 PCI/2 ISA 512 Mb 2S, 1P, USP, PS/2 nVIDIA Riva TNT SB PC164D Notes Description ATX Pentium III Intel 820 5 PCI/1 AMR 1024 Mb RDRAM 2S, 1P, USP, PS/2 AGP ES1373 Notes Slot 1 2 DIMM sockets UDMA/33 16 Mb ESS? VC 820 Item Form Factor CPU Chipset Bus Memory (Mb) I/O Video Audio Performance Comments Slot 1 3 RIMM sockets UDMA/66 100-133 Poor Also look at the SuperMicro PIIISCE VS440FX CPU speed 200 MHz 180 MHz 166 MHz 150 MHz Host bus speed 66 MHz 60 MHz 66 MHz 60 MHz Pins 19-21 17-19 19-21 17-19 12-14 12-14 10-12 10-12 9-11 9-11 11-13 11-12 295 296 The PC Engineer’s Reference Book – Vol 2: Motherboards Function CMOS Clear Pins 20-22 18-20 27-29 25-27 28-30 26-28 4-6 2-4 Password Clear Setup Access BIOS Recovery Front Panel header 1-2 3-4 6-11 13-16 18-20 22-23 24-27 Description Keep* Clear Keep* Clear Enabled* Disabled Normal* Recovery mode Power On Sleep IR HDD LED Power LED Reset Speaker VL-601 Clock settings set in CMOS CPU Bus 333 MHz 66 300 MHz 66 266 MHz 66 233 MHz 66 Ratio 5x 4.5x 4x 3.5x FREQ4 Close Close Close Close FREQ3 Open Open Open Close FREQ2 Open Close Close Open FREQ1 Open Open Close Open VT-502 Intel CPU 233 MHz 200 MHz 166 MHz 150 MHz 133 MHz 120 MHz 100 MHz 90 MHz 75 MHz Host 66 66 66 60 66 60 66 60 50 CLK1 1-2 1-2 1-2 2-3 1-2 2-3 1-2 2-3 Not supported CLK2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 CLK3 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 Ratio 3.5x 3x 2.5x 2.5x 2x 2x 1.5x 1.5x FREQ1 1-2 1-2 2-3 2-3 2-3 2-3 1-2 1-2 FREQ2 1-2 2-3 2-3 2-3 1-2 1-2 1-2 1-2 FREQ3 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 AMD CPU K6-233 K6-200 K6-166 K5-PR200 K5-PR166 K5-PR150 K5-PR133 K5-PR120 K5-PR100 K5-PR90 K5-PR75 Host 66 66 66 66 66 60 66 60 66 60 50 CLK1 1-2 1-2 1-2 1-2 1-2 2-3 1-2 2-3 1-2 2-3 Not supported CLK2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 CLK3 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 Ratio 3.5x 3x 2.5x 2x 1.75x 1.75x 1.5x 1.5x 1.5x 1.5x FREQ1 1-2 1-2 2-3 1-2 2-3 2-3 1-2 1-2 1-2 1-2 FREQ2 1-2 2-3 2-3 2-3 2-3 2-3 1-2 1-2 1-2 1-2 FREQ3 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 Cyrix CPU M2 200 M2 166 Host 66 60 CLK1 2-3 2-3 CLK2 1-2 1-2 CLK3 2-3 1-2 Ratio 3x 2.5x FREQ1 1-2 2-3 FREQ2 1-2 2-3 FREQ3 1-2 2-3 I CPU P200+ P166+ P150+ P133+ P120+ Host 66 60 55 50 CLK1 Not supported 1-2 2-3 2-3 Not supported CPU Voltage P54C STD, VR (3.3V) P54C VRE (3.5V) P55C (2.8V/3.3V) AMD K5 "B" (3.5V) AMD K6-166/200 (2.9V/3.3V) Cyrix 3.52V (028) Cyrix 6x86L (2.8V/3.3V) Cyrix 6x86MX (2.9V/3.3V) CLK2 CLK3 Ratio FREQ1 FREQ2 FREQ3 1-2 1-2 2-3 2-3 2-3 2-3 2x 2x 2x 2-3 2-3 2-3 1-2 1-2 1-2 1-2 1-2 1-2 VR1 1-2 3-4 9-10 1-2 7-8 1-2 9-10 7-8 VR2 Open Open 1-2,3-4 Open 1-2,3-4 open 1-2,3-4 1-2,3-4 VT-503 Clock speed is determined in CMOS. Intel CPU 233 MHz 200 MHz 166 MHz 150 MHz 133 MHz 120 MHz 100 MHz 90 MHz 75 MHz Host 66 66 66 60 66 60 66 60 50 Ratio 1.5x 3x 2.5x 2.5x 2x 2x 1.5x 1.5x 1.5x FREQ1 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 FREQ2 1-2 2-3 2-3 2-3 1-2 1-2 1-2 1-2 1-2 FREQ3 1-2 1-2 2-3 2-3 2-3 2-3 1-2 1-2 1-2 AMD CPU K6-300 K6-266 K6-233 K6-200 K6-166 K5-PR200 K5-PR166 K5-PR150 K5-PR133 K5-PR120 K5-PR100 K5-PR90 CPU M2 266 M2 233 M2 200 M2 166 P166+ P150+ P133+ Host 66 66 66 66 66 66 66 60 66 60 66 60 Host 66 66 60 60 66 60 55 Ratio 4.5x 4x 3.5x 3x 2.5x 2x 1.75x 1.75x 1.5x 1.5x 1.5x 1.5x Ratio 3.5x 3x 3x 2.5x 2x 2x 2x FREQ1 2.3 2-3 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 FREQ1 1-2 1-2 1-2 1-2 1-2 1-2 1-2 FREQ2 2-3 1-2 1-2 2-3 2-3 2-3 2-3 2-3 1-2 1-2 1-2 1-2 FREQ2 1-2 1-2 1-2 2-3 1-2 1-2 1-2 FREQ3 2-3 2-3 1-2 1-2 2-3 1-2 2-3 2-3 1-2 1-2 1-2 1-2 FREQ3 1-2 1-2 1-2 2-3 2-3 2-3 2-3 297 298 The PC Engineer’s Reference Book – Vol 2: Motherboards CPU Voltage P54C STD, VR (3.3V) P54C VRE (3.5V) P55C (2.8V/3.3V) AMD K6 166,200 (2.9V/3.3V) AMD K6 233 (3.2V/3.3V) AMD K6 266,300 (2.1V/3.3V) Cyrix 6x86MX (2.9V/3.3V) VR1 1-2,5-6,7-8 1-2,3-4,5-6,7-8 7-8 1-2,7-8 5-6,7-8 1-2 1-2,7-8 VX Jumper JP 4 JP 5 JP 6 JP 7 JP 14 Position On Off 1-2 2-3 Open 1-2 2-3 Function 12v Flash ROM 5v or EPROM ISA Clock PCI/4 PCI/3 Sleep switch SDRAM voltage 3.5v CPU voltage (Vre) 3.38v (Std, Vr) Inventa Inventec Itri Iwill Quick Technology. www.iwill.com www.iwillusa.com Award BIOS ID The last two numbers of the BIOS part number. Code AC BC DC Motherboard P54TS/P55TV Lite P55XUB T54TS Code DC EC Motherboard P55TU P54TSW2 DBS100 Item Form Factor CPU Chipset Bus Memory (Mb) I/O Video Description ATX Pentium II Intel 440BX 4 PCI/2 ISA 1 Gb 2 EIDE, floppy USB, IR Notes SMP Slot 1 4 DIMM sockets Adaptec AIC-7895P AGP 2x J Jamicon (818) 333 9168 Award BIOS ID The last two numbers of the BIOS part number. Code 9C-00 Motherboard KM-T5-V2 Code Motherboard Jaton Corp www.jaton.nl JBond J. Bond Computer Systems. www.jbond.com Award BIOS ID The last two numbers of the BIOS part number. Code 1-00 1C-00 9C-02 Motherboard PCI 400C-C PCI 500C-B or -C PCI 500C-H Code A-00 AC-01 HC-00 Motherboard PCI 500C-D PCI 500C-H2 PCI 500C-E PCI400C-A Item CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Description 486 66 Saturn Phoenix 3 PCI/4 ISA Notes DX2-66, P24T 2 PCI/5 ISA? 1 each shared 4 72-pin 36-bit SIMMs, in identical pairs 300 The PC Engineer’s Reference Book – Vol 2: Motherboards Item I/O Problems Description Notes Built-in NCR SCSI Disable L2 Cache for reliable SCSI operation. Description Notes 486 SiS 3 PCI/4 ISA 128 2S, 1P P24T. 5 and 3.3v PCI400C-C Item Form Factor CPU Chipset Bus Memory (Mb) I/O Comments PCI are busmasters Later revision of 400-A PCI500C-A Item Chipset BIOS Bus Memory (Mb) Cache (K) I/O Performance Description Mercury Phoenix 4 PCI/4 ISA Notes 4 72-pin sockets 512 Kb NCR 53c810 SCSI Disable CPU Cache (L1) for reliable operation, at least on early boards. JDR Microdevices (HK) 2theMax. www.2themax.com Jetta (908) 329 9651 Jetway Also known as Jet Fair or maybe Jetboard. www.jetway.com.tw Award BIOS ID The last two numbers of the BIOS part number. Code 0 1 1-00 1C 1-00 9 9C 9C-00 9C-00 Motherboard J 403TG J 403TG J 433, 435 or 437 J 656-VXD/J 646C J 636/J 446 A v2.0 J 636 J 656/VXB J 5TXBR2/J 648A/J 636 J 446 A V2.0 Code AC AC-00 CC CC-00 DC U H HC W Motherboard J 656HXA J 656VXA J 656B J 656VXB v3.0 or 656VXC/P J 656C/VXB J 756A (P Pro) J 426 J 426 J 646A J 5TXC/L Jumper JP2 JP3 JP4 Position 2-3 3-4 1-2 2-3 1-2 3-4 5-6 7-8 Function Normal Clear CMOS 12v Flash ROM 5v Flash ROM CPU voltage J Jumper Position In Out In Out In Out In 1 Off Off Off Off Off On On 4 Off Off Off On U22 In In Out Out Out Out Out 2 Off Off On On Off Off On 5 Off Off On On In In In In Out Out Out 3 Off On On Off Off On On 6 On Off Off On In In In In In In Out Function 3.52 (single) 3.45 3.3 3.2 2.9 2.8 2.1 Clock multiplier 1.5x 2x 2.5x 3x 3.5x 4x 4.5x Bus frequency 60 MHz 66 MHz 75 MHz 83 MHz J 571B Item Form Factor CPU Speeds Chipset Bus Memory Cache (K) I/O Jumper JP3 Position 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 JP7 JP13 TB-SW Voltage 2.1V 2.8V 2.9V 3.2V 3.3V 3.45V 3.52V Description Baby AT Pentium 75-300 SiS 5571 3 PCI/4 ISA 256 512 2S, 1P, IR, Floppy, EIDE, PS/2, USB 1-2 open open open open open open Short 3-4 open open open open open Short open Notes 22 x 22 cm P54C/Cyrix M1/AMD K5, Intel P55C (MMX)/Cyrix M2 (MMX)/AMD K6 (MMX) FPM, EDO, SDRAM. 2 x 72-pin SIMMs and 2 x 168-pin DIMMs (3.3V). Pipelined Burst SRAM Function 5v Flash ROM (SST, Winbond) 12v (Intel) Normal Clear CMOS 3.3v CPU 3.45v CPU SMI suspend switch Turbos switch 5-6 open open open open Short open open 7-8 open open open Short open open open 9-10 open open Short open open open open 11-12 open Short open open open open open 13-14 Short open open open open open open 656VXA Jumper JP 15 Position 1-2 Function 12v Flash ROM (Intel, MXIC) 301 302 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper JP 17 J 20 JP 18-20 JP 21,22 JP 16,25,27,28 JP 33 Position 2-3 Short Open 3-4,5-6 3-4 5-6 Open JP 18 Closed Open Open JP21 Open Closed Closed Open JP16 1-2 1-2 Open Closed JP19 Open Closed Open JP22 Open Open Closed Closed JP25 1-2 2-3 JP20 Open Open Closed JP27 1-2 2-3 JP28 1-2 1-2 J-Mark 656VXA See under Jetway JossTech www.josstech.com Award BIOS ID The last two numbers of the BIOS part number. Code 1-00 9C-00 AC Motherboard JT 586IP4 JT 586TS4/IV4 JT 586TS4 Code BC C-00 Motherboard JT 586TS4 J 646C Function 5v (SST, Winbond) ISA clock PCI/4 PCI/3 50 MHz Ext clock 55 60 66 CPU Voltage 3.3v 3.45v 3.6v CPU Frequency Ratio 1.5 2 2.5 3 Cache size 256K 256K + 256K module (512K) Normal Clear CMOS K Kaimei Association with Jamicon? Award BIOS ID The last two numbers of the BIOS part number. Code 0C-00 Motherboard KM-S4-1 PCI rev 5.1 KM-S4-1 PCI rev 5.1 Same as Azza 4SIG or Rectron RT-4S3 Kam-Tronic MegaStar megastar.kamtronic.com Kapok Kinpo Koutech Systems www.koutech.com Code 2C-00 Motherboard KM-S4-1 v4.2/4.3 304 Notes The PC Engineer’s Reference Book – Vol 2: Motherboards L LAN Plus www.lan-plus.com Lanix www.lanix.com Award BIOS ID The last two numbers of the BIOS part number. Code 1C Motherboard PM 900 Code Motherboard Lanner Leading Edge D3/SX Jumper 15 Position 1-2 2-3 Function Enable mouse Disable Lexar Out of Business. LXM-510(D) Item CPU Chipset BIOS Description 486 IMS Award/AMI Flash Notes P24T. For 3.3v CPUs, use Model 99 Regulator Integrated Micro Solutions 306 The PC Engineer’s Reference Book – Vol 2: Motherboards Item Bus Memory (Mb) I/O Comments Description 2 PCI/2 ISA/2 VL 128 2S, 1P, PS/2 Notes 8 30-pin sockets Early boards had separate connectors for PCI 3.3v, later replaced with separate voltage regulator. Manual is rubbish. Lucky Star www.lucky-star.com.tw Something to do with Flamingo? Award BIOS ID The last two numbers of the BIOS part number. Code 2C-00 3 3C 9C 9C-00 Motherboard P 407 rev 2 4C-1 LS 486E 6LX2/ P54CE/5V-2 CH5T Code AC BC-00 CC-00 FC Motherboard 6AlX2 (Jumperless) P55CE Rev DW83707/87 P55CE-C2/P54CE P54CE P54CE Same as Flamingo 5I-VX1C 5I-VX1C Same as Flamingo MB-FLM-TX01 6ABX2V Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) I/O Video Comments Lucky Tiger Description ATX Pentium II 550 MHz 440BX Award 4.51PG 5 PCI/2 ISA 768 Mb 2S, 1P, USP, PS/2 Notes Slot 1 Faster with DIP switch version of board 3 DIMM sockets UDMA 3 AGP Only 2 jumpers M Macrotech Matra (818) 855 1820 Matsonic www.matsonic.com Megastar www.megastar.kamtronic.com Mega System Co www.computersources.com.hk/mega/ Megatrends Technology www.megacom.com Memorex Telex 7006 Jumper JP1 JP5 Position 1-2* 2-3 Out Function 256K SIP DRAM for EMS 1 Mb SIP DRAM for EMS Disable video IRQ2 308 The PC Engineer’s Reference Book – Vol 2: Motherboards 7010 Jumper JB1 JB2 JB3 JB4 JB5,7 JB6 JB8 JB9 JB10 JB11 JB12 JB13,14 Position A In Out In Out A B JB5 Out Out In In A B A B In Out In Out A B A B JB13 Out Out In In JB7 Out In Out In JB14 Out In Out In Function Mono monitor EGA Mono Hercules video Disable 27256 Video BIOS EPROM 27128 Video BIOS EPROM Boot Select Unused Boot from network Unused Unused 27256 BIOS EPROM 27512 BIOS EPROM RAM size select unsued 640K Enable COM2 Disable Enable extended diagnostics Disable LAN IRQ9 LAN IRQ5 Disable LAN Enable LAN LAN response time 74.7 ms 283.4 ms 561.8 ms 1118.6 ms 7022 Jumper W2 W3 W4 W5 W9 W11 W12 W15 W16 Position 1-2* 2-3 1-2 2-3* 1-2 2-3* 1-2* 2-3 1-2 2-3* 1-2 2-3* 1-2* 2-3 In* Out Function 0.7 wait state 0 wait state Mono display Colour display Disable floppy Enable floppy HD floppy write current HD floppy RPM 12 MHz maths copro 16 MHz maths copro Disable VGA Enable VGA IDE access Enable IRQ9 Disable Enable PS2 mouse (IRQ12) Disable Position Out In Out Function Enable VGA Disable ANSI 3.5" (ignore pin 2) 7025 Jumper W2 1W8 M Jumper W9 W12 Position 1-2 2-3 Out In Out In Function AT 3.5" diskette PS/2 3.5" diskette Normal POST Continuous POST Mono display (not with VGA) Colour display (not with VGA) 7040 Jumper ST1 ST2 ST3 ST4 ST6 ST7 ST9 ST10 ST11 ST12 ST18 ST22 ST23 ST26 ST32 ST34 ST37 ST 38 ST39 ST40 ST42 ST44,45 SW2 S1-2 SW2 S3-4 Position 1-2* 2-3 In* In* Out 1-2* 2-3 In* In* Out In* In* Out In Out* In* Out In* In* Out In* Out 1-2* 2-3 In* Out 1-2 2-3* In Out* In* In* Out 1-2 2-3* In* Out ST44 In* Out S1 Off On On Off S3 Off ST45 In* Out S2 Off On Off On S4 Off Function IRQ10=SCSI HD IRQ14=ST506 HD SCSI controller enabled SCSI DMA (DACK3) enabled Disabled 27256 ROM BIOS 27512 ROM BIOS Enable COM1 Enable PS/2 mouse (IRQ12) Disable Enable COM2 Floppy enabled Disabled Extension 512K or 2 Mb enabled Disabled 640K onboard RAM enabled Disabled Enable VGA I/O wait state generator enabled Disabled Enable DMA2 for floppy Disable Enable LPT1 (378h) Enable LPT2 (278h) Long ALE enabled Disabled LPT2 IRQ5 enabled LPT1 IRQ7 enabled 6v battery 2 x 3v batteries Enable SCSI DMA (DRQ3) COM2 IRQ3 enabled Disabled External battery Internal battery COM1 IRQ4 enabled Disabled VGA Enable Disable Display Type VGA EGA Mono CGA Language French 309 310 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper SW2 S5 SW2 S6 Position On On Off On Off On Off Function Spanish English German ST506 interface SCSI interface HD IRQ14 (ST 506) HD IRQ10 (SCSI) Off On On 7045/D Jumper JP1 JP2 JP3 JP4 JP5 JP6 JP7 JP8 JP9 JP10 JP11 JP12 JP13 JP14 JP15 JP17 JP18 JP19 JP20 Display Analogue Enh RGB Colour RGB TTL mono Disabled Position 1-2 2-3* 1-2* 2-3 1-2 2-3* 1-2* 2-3 1-2 2-3* 1-2 2-3* Out* 1-2* 2-3 Out* 1-2 2-3* 1-2* 2-3 1-2 2-3* All out 1-2 2-3* All out 1-2 2-3* 1-2 2-3 1-2 2-3 1-2 2-3 S2 Off On Off Off Off Function COM1 IRQ4 COM2 IRQ3 COM2 IRQ4 COM1 IRQ3 Reserved 27128 EPROM 27256 EPROM 12 MHz CPU clock 8 MHz CPU clock Auto reset POST once Enable HD controller port 157h Disable HD Reserved Enable floppy Disable Reserved Floppy address 37xh Floppy address 3Fxh 16-bit video 8-bit video Reserved COM1 2F8h COM1 3F8h Disable COM2 2F8h COM2 3F8h Disable Not used 36 MHz video clock (800x600) Disable video Enable video LPT IRQ7 LPT IRQ5 Enhanced colour display Mono/colour display S3 Off On Off On Off S4 Off Off On Off Off S5 Off On On On Off S6 Off Off Off Off Off JP12 1-2 1-2 1-2 1-2 2-3 JP18 2-3 2-3 2-3 2-3 1-2 JP20 1-2 1-2 2-3 2-3 1-2 M 7065 Jumper JP5 JP6-7 JP8 JP9-10 JP11 JP12 JP13 JP20,21 JP22 JP24 Position 1-2* 2-3 JP6 1-2 2-3* 1-2 2-3* JP9 1-2 2-3* 1-2 2-3* 1-2* 2-3 1-2 2-3* JP20 In* Out 1-2 2-3* 1-2 2-3* JP7 1-2* 2-3 JP10 1-2* 2-3 JP21 Out* In Function LPT1 IRQ7 LPT2 IRQ5 COM IRQ COM2 IRQ4 COM1 IRQ3 LPT2 278h LPT1 378h COM Address COM2 2F8h COM1 3F8h HD adapter installed Not installed Floppy enabled Disabled Floppy address 38xh Floppy address 3Fxh Clock speed 8 MHz 10 MHz Reserved Normal boot 80387 installed Not installed 7070 Jumper JP5 JP6-8 JP9 JP9 (?) JP9 SW1 S1-4 SW1 S5 SW1 S6 SW1 S7 SW1 S8 Position 1-2 2-3* JP6 1-2 2-3 1-2* 2-3 1-2 2-3* In Out S1 Off On Off* On Off On* Off* On Off* On JP7 1-2 2-3 JP8 1-2 2-3 S2 Off On S3 On Off Function 27512 ROM 27256/27128 ROM Maths copro Enable Disable or WTL1167* Disable maths copro Enable 4 Mb DRAM 2 Mb DRAM 4 Mb DRAM 2 Mb DRAM S4 On Off Rev C & C1 boards ROM Type 27256/27512 27128* MDA/EGA display CGA 20 MHx system speed Smart mode Modes 3 & 4 memory mapping Reserved RAM BIOS location ROM BIOS location 311 312 The PC Engineer’s Reference Book – Vol 2: Motherboards Mentor Award BIOS ID The last two numbers of the BIOS part number. Code CC-00 Motherboard BN 533T Code Motherboard BN 533T Same as Informtech 533T-AT Mercury Computer Corp www.m-group.com Award BIOS ID The last two numbers of the BIOS part number. Code 9C Motherboard W586VX/TXA Code AC Motherboard W586VXL Microfive Made boards (with BIOSes) for Samsung. Microgram Micronics www.micronics.com Recently acquired by Diamond Multimedia, together with Orchid. Award BIOS ID The last two numbers of the BIOS part number. Code DC Motherboard D5CUB Code 80386SX Cache Jumper W1 W2 W3 W4 W5 W6 Position 1-2 Out Out Out 1-2* 2-3 1-2,3-4 2-3 Out Function CGA Mono Reserved Reserved Normal Operations Clear CMOS 4 Mb SIMMs not installed 4 Mb SIMMs installed Reserved 80386SX (Non-Cache) Jumper J2 Position 1-4 2-3 3-4 Function External battery Enable Onboard battery Clear CMOS Motherboard M Jumper JP2 JP13 Position In Out 12-13 15,16,17 19-20 7,8,9,10 1,2,3,4,5 Function Colour monitor Mono Turbo LED Turbo switch Reset switch Speaker Keylock/Power 80486-50 EISA 2 Jumper W1 W2,6,8 W3 W4,5,7 W9 W10 W11 W12 W14, 17-19 Position W2 1-2 1-2 2-3 2-3 1-2 W4 1-2 1-2 2-3 2-3 W6 1-2 1-2 1-2 1-2 W8 1-2 2-3 1-2 2-3 W5 2-3 2-3 2-3 2-3 W7 2-3 1-2 1-2 2-3 W14 2-3 1-2 W17 Out 1-2 W18 Out 1-2 W19 Out 1-2 Function Reserved COM ports Enable COM1 & 2 Enable COM1, disable COM2 Enable COM2, disable COM1 Disable COM1 & 2 Enable onboard floppy (2-3 disable) Parallel Port LPT1 3BC-3BE LPT2 378-37A LPT3 278-27A Disabled Reserved Reserved Reserved Reserved Cache interleave 64K 256K Switch 1 Switch S1-5 Position S1 On Off On Off On On On Off Off On Off On Off Off On On On Off Off On Off On Off Off S2 On On Off Off On On Off On On Off Off Off Off Off On On Off On On Off Off Off Off Off S3 On On On On Off Off On On Off Off On Off Off Off Off Off On On Off Off On Off Off Off S4 On On On On On Off Off Off On Off Off On Off On On Off Off Off On Off Off On Off On S5 On On On On On On On On On On On On On On Off Off Off Off Off Off Off Off Off Off Function Total Memory (Mb) 1 2 3 4 4 5 6 7 8 9 10 12 13 16 16 20 24 28 32 36 40 48 52 64 313 314 The PC Engineer’s Reference Book – Vol 2: Motherboards Switch S6 S7 S8 Position On* Off* On* Off Function Reserved Reserved Colour display Mono 80486 ASIC EISA Jumper W1, 11,12,45 W2,8 ,9 W3,4,10 W13 W20,21 W41,44 Position W2 1-2 1-2 2-3 2-3 W3 1-2 1-2 2-3 2-3 1-2 W20 Out 1-2 W8 1-2 1-2 1-2 1-2 W4 2-3 2-3 2-3 2-3 W9 1-2 2-3 1-2 2-3 W10 2-3 1-2 1-2 2-3 W21 Out 1-2 W41 Out 1-2 Function Reserved COM ports Enable COM1 & 2 Enable COM1, disable COM2 Enable COM2, disable COM1 Disable COM1 & 2 Parallel Port LPT1 3BC-3BE LPT2 378-37A LPT3 278-27A Disabled Enable onboard floppy Cache interleave 64K 256K W44 2-3 1-2 Switch 1 As for 80486-50 EISA 2 EISA 3 Jumper J7,10 J6 J12 Position J7 In Out Out 1-2,3-4 3-4 In Out J10 In In Out Function CPU settings SX25, DX2-50 SX33, DX33, DX2-66 DX50 486DX 486SX Colour display Mono Baby Gemini 386 Switch 1 Switch S1-5 Position S1 On Off On Off On On On Off Off On Off On Off Off On S2 On On Off Off On On Off On On Off Off Off Off Off On S3 On On On On Off Off On On Off Off On Off Off Off Off S4 On On On On On Off Off Off On Off Off On Off On On S5 On On On On On On On On On On On On On On Off Function Total Memory (Mb) 1 2 3 4 4 5 6 7 8 9 10 12 13 16 16 M Switch S6 S7 S8 Position On On Off Off On Off On Off Off On* Off* On* Off On Off On On Off Off Off Off Off Off On On Off Off On Off Off Off Off Off Off On Off Off On Off On Off Off Off Off Off Off Off Off Off Function 20 24 28 32 36 40 48 52 64 Reserved Reserved Colour Display Mono Switch 2 Jumper W3 S1 S2 S3 S4 S5 S5 S7 S8 Position Out* Off* On Off Off* Off* Off* Off* Off* Off* Function Reserved Reserved 33 MHz 40 MHz Possibly same for SW1-8 Reserved Reserved Reserved Reserved Reserved Reserved Baby Gemini 486(/50) Jumper W1 W4 W15 J100 J101 Position 1-2 Out 1-2 Out 1-2 2-3 1-2 2-3 Function 256K cache 64K cache 32Kx8 SRAM 8Kx8 SRAM 256K cache interleave 64K cache interleave Reserved Reserved Position Off* Off* On* Off* Off* Off* On* Off* Function Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Switch 1 Jumper S1 S2 S3 S4 S5 S5 S7 S8 Switch 2 Switch S1-5 Position S1 On Off On Off S2 On On Off Off S3 On On On On S4 On On On On S5 On On On On Function Total Memory (Mb) 1 2 3 4 315 316 The PC Engineer’s Reference Book – Vol 2: Motherboards Switch Position On On On Off Off On Off On Off Off On On On Off Off On Off On Off Off On On Off On On Off Off Off Off Off On On Off On On Off Off Off Off Off Off Off On On Off Off On Off Off Off Off Off On On Off Off On Off Off Off On Off Off Off On Off Off On Off On On Off Off Off On Off Off On Off On On On On On On On On On On On Off Off Off Off Off Off Off Off Off Off Function 4 5 6 7 8 9 10 12 13 16 16 20 24 28 32 36 40 48 52 64 S5 On On On On On On On On On On On On On On Off Off Function Total Memory (Mb) 1 2 3 4 4 5 6 7 8 9 10 12 13 16 16 20 Baby Gemini 486DX2 Jumper W3,4 W15 Position W3 Out In 1-2 2-3 W4 Out In Function External cache 64K 256K 256K cache interleave 64K cache interleave Switch 1 Jumper S1 S2 S3 S4 S5 S5 S7 S8 Position Off* Off* On* Off* Off* Off* On* Off* Function Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Switch 2 Switch S1-5 Position S1 On Off On Off On On On Off Off On Off On Off Off On On S2 On On Off Off On On Off On On Off Off Off Off Off On On S3 On On On On Off Off On On Off Off On Off Off Off Off Off S4 On On On On On Off Off Off On Off Off On Off On On Off M Switch S6 S7 S8 Position On Off Off On Off On Off Off On* Off* On* Off Off On On Off Off Off Off Off On On Off Off On Off Off Off Off Off On Off Off On Off On S3 On On On On Off Off On On Off Off On Off Off Off S4 On On On On On Off Off Off On Off Off On Off On Off Off Off Off Off Off Off Off Function 24 28 32 36 40 48 52 64 Reserved Reserved Colour Display Mono 256K cache? 64K cache? Baby Gemini 486SX Switch S1-4 S5,8 S6,7 Position S1 On Off On Off On On On Off Off On Off On Off Off On* Off* S2 On On Off Off On On Off On On Off Off Off Off Off Function Total Memory (Mb) 4 8 12 16 16 20 24 28 32 36 40 48 52 64 Reserved Reserved C400 Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Video Performance Description ATX Pentium II/Celeron Slot 1 440 BX Award 4.51PG 5 PCI/2 ISA 768 Mb 1 each shared 3 DIMM sockets 2 EIDE, floppy, USB AGP Substandard Mini 486 Jumper W1 W3 Notes Position 1-2* 2-3 In Out Function Normal ops Discharge CMOS Colour display Mono 317 318 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper W12 Position 1-2 2-3 Function Overdrive/487SX SX/DX/DX2 JX 30 Part number 09-00183-xx. There is an LED between slots #5 and #6 Item Form Factor CPU Bus Memory (Mb) I/O Jumper S1-4 W5 W6 W8 Description Baby AT Notes ZIF socket for Overdrive 7 ISA/2 VL 4 SIMM sockets IDE, floppy, 2S 1P Position S1 Off On 1-2 2-3 In Out 1-2 2-3 S2 On On S3 Off Off S4 Off Off W65 1-2 1-2 2-3 W66 2-3 1-2 2-3 W67 2-3 1-2 2-3 W11 W12 W13 W14 W31 W40 W64-68 W70 W71 W64 1-2 2-3 2-3 1-2 2-3 1-2 2-3 W68 1-2 2-3 2-3 J6 J33 J34 Function Motherboard Speed 33 MHz 25 MHz LPT Input mode (scanner) LPT Output mode Colour monitor installed Mono Flash ROM in recovery mode Normal - jumper NOT moved for Flash update IDE LED Reset Turbo LED Turbo switch Clear CMOS Must be removed to support local bus DMA when Local Bus Master controllers are installed. Cache 64K 128K 256K 486SX 486DX, 486DX2 & P24T PQFP 486SX with Overdrive SX PQFP 486SX with DX, or DX2 CPU Battery Connector Speaker Keylock/Power JX 30G Part number 09-00189-xx. There is an LED between slots #5 and #6 Item Form Factor CPU Bus Memory (Mb) I/O Jumper S1-4 Description Baby AT Notes ZIF socket for Overdrive 7 ISA/2 VL 4 SIMM sockets IDE, floppy, 2S 1P Position S1 Off On S2 On On S3 Off Off S4 Off Off Function Motherboard Speed 33 MHz 25 MHz M Jumper W2 W3 Position In Out In Out W4 W5 W7 W8 W10,11 22-24 W12 W13 W16,17 W18 W19 W20 W21 W71 1-2 2-3 1-2 2-3 W10 1-2 1-2 2-3 1-2 2-3 1-2 2-3 W16 1-2 1-2 2-3 W11 1-2 2-3 2-3 W22 2-3 1-2 2-3 W23 2-3 1-2 2-3 W24 1-2 2-3 2-3 W17 2-3 2-3 2-3 1-2 2-3 J8 J30 J31 319 Function Colour monitor installed Mono PS/2 mouse IRQ12 enabled Disabled Must be removed to support local bus DMA when Local Bus Master controllers are installed. Clear CMOS LPT Input mode (scanner) LPT Output mode Flash ROM in recovery mode Normal - jumper NOT moved for Flash update Cache 64K 128K 256K 486SX 486DX, 486DX2 & P24T PQFP 486SX Enabled Disabled Cache 64K 128K 256K Turbo LED Turbo switch Reset IDE LED with Overdrive SX PQFP 486SX with DX, or DX2 CPU Battery Connector Speaker Keylock/Power JX 30GC Part number 09-00203-xx. There is an LED between slots #5 and #6 Item Form Factor CPU Bus Memory (Mb) I/O Jumper S1-4 W2 Description Baby AT ZIF socket for Overdrive 7 ISA/2 VL 4 SIMM sockets IDE, floppy, 2S 1P Position S1 Off Off In Out W4 W5 W8 W12 Notes 1-2 2-3 1-2 2-3 S2 On On S3 Off Off S4 Off Off Function Motherboard Speed 33 MHz 25 MHz Colour monitor installed Mono Must be removed to support local bus DMA when Local Bus Master controllers are installed. Clear CMOS Flash ROM in recovery mode Normal - jumper NOT moved for Flash update 486SX 486DX, 486DX2, 486DX/4 & P24T 320 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper W13 W10,11 22-24 W16,17 W18 W19 W20 W21 W36 W37 W38 W71 Position 1-2 2-3 W10 1-2 1-2 2-3 W16 1-2 1-2 2-3 W11 1-2 2-3 2-3 W17 2-3 2-3 2-3 W22 2-3 1-2 2-3 W23 2-3 1-2 2-3 1-2 2-3 1-2 2-3 J8 J30 J31 W24 1-2 2-3 2-3 Function PQFP 486SX Enabled Disabled Cache (W/T) 64K 128K 256K Cache (W/B) 64K 128K 256K Turbo LED Turbo switch Reset IDE LED LPT IRQ7 LPT IRQ5 Reserved Reserved with Overdrive SX PQFP 486SX with DX, or DX2 CPU Battery Connector Speaker Keylock/Power VL-Bus Jumper W13 W16 W20 Position 1-2 2-3 2-3 1-2 2-3 1-2 Function DX/DX2 SX LPT output mode LPT input mode Flash memory normal Flash memory recovery SW 8 Switch S1-4 S5-8 Position S1 On Off On Off On On On Off Off On Off On Off Off S5 Off On S2 On On Off Off On On Off On On Off Off Off Off Off S6 On Off S3 On On On On Off Off On On Off Off On Off Off Off S7 Off On S4 On On On On On Off Off Off On Off Off On Off On S8 Off Off M4Pi Item Speeds (MHz) Chipset Description 486 Intel 82420 (Saturn) Notes DX4, P24T Function Total Memory (Mb) 4 8 12 16 16 20 24 28 32 36 40 48 52 64 CPU 33 MHz DX2-66 25 MHz DX2-50 M Item BIOS Bus Memory (Mb) Cache (K) Description Phoenix Flash 3 PCI/6 ISA 128 Mb 512 W/B Notes 1 each shared. Extra dedicated ISA slot 4 72-pin sockets 256 standard M5Pi Item CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) Description Pentium 60, 66 Intel 82430 (Mercury?) Phoenix Flash 3 PCI/5 ISA 128 Mb 512 W/B Notes 1 each shared 4 72-pin sockets 256 standard M54pi Item CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) Description Pentium 90 Neptune Phoenix Flash 3 PCI/5 ISA 128 512 W/B Notes 1 each shared 4 72-pin sockets 256 standard Micom Award BIOS ID The last two numbers of the BIOS part number. Code 0C-00 Motherboard MTX A512 TXPro+ Code Motherboard MicroStar International (MSI) www.msi.com.tw Award BIOS ID The last two numbers of the BIOS part number. Code 0C-00 1-00 1C-00 9-00 9C 9C-00 Motherboard 586MC1 MS 5103 MS 4135 MS 5106 or 596MC2 MS 5117 MS 6117/5145/5146/5147 MS 5137/5117 Code AC AC-00 AC AL-00 BC-00 CC-00 Motherboard MS 6119 MS 5148 MS 5128 MS 5148 Ingersoll 17M MS 5156 v1.1 K7T Pro Item Form Factor CPU Chipset Bus Description ATX Notes Socket A Via KT133 6 PCI 321 322 The PC Engineer’s Reference Book – Vol 2: Motherboards Item Memory (Mb) I/O Description Notes 3 DIMM sockets PS/2 Mouse and Keyboard, 2 USB, 2 serial, 1 parallel, 2 EIDE, floppy Video AGP LX1 Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Video Performance Description ATX Pentium II 200-333 Notes Slot 1 AMI 1.2 4 PCI/3 ISA 512 SDRAM 1 Gb EDO 4 DIMM sockets AGP Average LX4 Item Form Factor CPU Speeds (MHz) Bus Memory (Mb) Description ATX 2 Pentium II 333 5 PCI/2 ISA 512 SDRAM 1 Gb EDO Performance Notes Slot 1 4 DIMM sockets Below average MS 5169 Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Video Performance Comments Description ATX Pentium ALi Aladdin V AMI HiFlex 1.2 4 PCI/3 ISA 768 Mb 512K 2S, 1P, USP, PS/2 Notes Super Socket 7 4.5 x CPU clock 100 MHz 3 DIMM sockets UDMA 3 AGP Good – but behind TMC T15VG+ Inexpensive MS 6119 Item Form Factor CPU Chipset BIOS Bus Memory (Mb) I/O Video Performance Comments Description ATX Pentium II 440 BX Award 4.51PG 4 PCI/3 ISA 768 Mb 2S, 1P, USP, PS/2 Notes Slot 1 100 MHz 3 DIMM sockets UDMA 3 AGP Quick, but Soyo SY-6BA+ is faster Good documentation M MS 6167 Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) I/O Video Description ATX Athlon AMD-750 Award 5 PCI/2 ISA 768 Mb The usual Notes Slot A 100 FSB UDMA/66 3 DIMM sockets AGP 2x MS 6182 Item Form Factor CPU Chipset Bus Memory (Mb) I/O Audio Description ATX Pentium III Intel 810E 6 PCI/1 ISA 768 Mb 2S, 1P, USP, PS/2 ESS ES1373 Notes Slot 1 500 MHz AMR with TV-out 3 DIMM sockets UDMA/66 MS 6195 Item Form Factor CPU Chipset BIOS Bus Memory (Mb) I/O Video Comments Description ATX Athlon AMD 751/756 Award 6 PCI/1 ISA 768 Mb 2S, 1P, USP, PS/2 AGP Notes Slot A AMR with TV-out 3 DIMM sockets UDMA/66 2x Fast memory performance MS 815E Pro Item Form Factor CPU Speeds Chipset BIOS Bus Memory (Mb) I/O Video Audio Description ATX Pentium III/Celeron 1000/733 Intel 815E Award 6 PCI 512 Mb 2 EIDE, floppy, USB, IR Intel 815 GMCH Sigmatel STAC9708T MINT data Rebadges Biostars. Notes Socket 370 FSB 166 UDMA/100 4 DIMM sockets AGP 4x 323 324 The PC Engineer’s Reference Book – Vol 2: Motherboards Mirage Award BIOS ID The last two numbers of the BIOS part number. Code 1 Motherboard M54PS Code Motherboard MiTAC www.mitac.mic.com.tw Award BIOS ID The last two numbers of the BIOS part number. Code 1 2C-00 Motherboard PH 4500AM or LH 4077C/D PH 4500AU Code 9C-00 Motherboard PH 5400V LH 4077D Digicom? AT&T 1455? Mitsuba www.mitsuba.com Mitsubishi www.mitsubishi-computers.com Division closed MLE (800) 780 3486 Motorola www.mcg.mot.com MSI See MicroStar International M-Technology www.mtiusa.com Refer also to Rise Award BIOS ID The last two numbers of the BIOS part number. Code 1 1-00 2-00 Motherboard R 407 R 526 R 418 Code A-00 AC AC Motherboard R 526 R 651 (Rise)/R 533 R 525/R 528WP M Code 2C 3C-00 4C-00 9C 9C-00 Motherboard R 418 R 418 R 418 M 549 R 526/R 534(WP)/R-581a Code AC-00 BC CC CC-00 HC Motherboard R 533/R552 R 525 R533 R 534G R525 PCI-486 Item CPU Chipset BIOS Bus Memory (Mb) Cache (K) I/O Description 486 SiS Award Flash 3 PCI/4 ISA 256 2S, 1P, Floppy Notes Check JP48 for correct voltage 8 30-pin sockets, 2 72-pin 64K chips R407 Jumper BK SW JP44 JP45 JP50 JP60 JP61 JP62 Position 1-2 1-2 2-3 1-2 2-3 1-2 2-3 On On On Off Function Suspend VL bus 0 wait state VL bus 1 wait state VL bus <=33 MHz VL bus >33 MHz Normal Discharge CMOS Doze mode Suspend mode CGA Mono Intel CPU P24T not recommended, but set as P24D and cut one end of resisitor R24 Junper DX/2/4 486SX P24D JP1 Open Open Open JP2 3-4 3-4 1-2 JP3 Open Open 2-3 JP4 2-3 2-3 1-2 JP5 2-3 2-3 1-2 JP6 1-2 1-2 1-2 JP7 2-3 2-3 2-3 JP8 3-4 Open 3-4 JP9 1-2,3-4 2-3 1-2,3-4 JP10 3-4 3-4 1-2,3-4 JP11 4-5 4-5 4-5 JP12 Open Open Open JP13 Open Open 1-2 JP14 Open Open 1-2 JP15 1-2=2.5x (DX4) Open Open 2-3=2x (DX4) Open=3x (DX4) JP16 1-2 1-2 1-2 AMD CPU Junper JP1 DX, DX/2 DX4-133 Open DX4/100 DX4/120 Open DX4/100 V8B DX4/120 V8B Open DX4 SV8B Open x5-133 x5-160 Open 325 326 The PC Engineer’s Reference Book – Vol 2: Motherboards Junper JP2 JP3 JP4 JP5 JP6 JP7 JP8 JP9 JP10 JP11 JP12 JP13 JP14 JP15 JP16 DX, DX/2 DX4-133 3-4 Open 2-3 2-3 1-2 2-3 3-4 1-2,3-4 3-4 4-5 Open 2-3 Open Open 1-2 DX4/100 DX4/120 3-4 Open 2-3 2-3 1-2 2-3 3-4 1-2,3-4 3-4 4-5 Open Open Open Open 1-2 DX, DX/2 DX4 (5v) 2-3 2-3 Open 2-3 1-2 2-3 1-2 3-4 1-2,3-4 2-3 2-3 Open Open Open Open 1-2 DX, DX/2 DX4 (345v) 2-3 2-3,4-5 Open 2-3 1-2 2-3 1-2 3-4 1-2,3-4 2-3 2-3 Open Open Open Open 1-2 DX4/100 V8B DX4/120 V8B 1-2,3-4 2-3 1-2 1-2 1-2 2-3 3-4 1-2,3-4 1-2,3-4 4-5 Open 1-2 1-2 Open 1-2 DX4 SV8B 1-2,3-4 2-3 1-2 1-2 1-2 2-3 3-4 1-2,3-4 1-2,3-4 4-5 Open 1-2 1-2 Open 1-2 x5-133 x5-160 1-2,3-4 2-3 1-2 1-2 1-2 2-3 3-4 1-2,3-4 1-2,3-4 4-5 Open 1-2 1-2 2-3 1-2 Cyrix CPU Junper JP1 JP2 JP3 JP4 JP5 JP6 JP7 JP8 JP9 JP10 JP11 JP12 JP13 JP14 JP15 JP16 5x86-100 5x86-120 Open 1-2,3-4 2-3 2-3 1-2 1-2 2-3 3-4 1-2,3-4 1-2,3-4 4-5 Open Open 1-2 Open 1-2 5x86 GP Open 1-2,3-4 2-3 2-3 1-2 1-2 2-3 3-4 1-2,3-4 1-2,3-4 4-5 Open 1-2 1-2 Open 1-2 System Speed Speed 25 MHz 33 MHz 40 MHz 50 MHz JP25 Short Short Open Open JP38 Open Short Short Open JP40 Short Open Short Open R418 Jumper JP51 JP49 Position Open Short 1-2 2-3 Function Colour display Mono display Retain CMOS data Clear CMOS Intel CPU Junper JP12 JP13 JP14 JP15 JP16 JP17 DX, DX/2, DX4 2-3 2-3 2-3 Open 3-4 3-4 486SX 2-3 Open 2-3 Open 3-4 3-4 P24T 1-2 1-2 2-3 1-2 3-4 1-2 P24D 1-2 2-3 2-3 Open 1-2,3-4 1-2 x5-133 Open 1-2,3-4 2-3 2-3 1-2 1-2 2-3 3-4 1-2,3-4 1-2,3-4 4-5 Open Open 1-2 2-3 1-2 M Junper JP18 JP19 JP20 JP21 JP22 JP23 JP24 DX, DX/2, DX4 2-3 Open Open Open 1-2,3-4 4-5 Open 486SX Open Open Open Open 2-3 4-5 Open P24T Open Open Open 1-2 or 3-4 1-2,3-4 1-2 Open DX, DX/2, DX4 DX4-133 (V8T) 2-3 2-3 2-3 Open 3-4 3-4 2-3 Open Open Open 1-2,3-4 4-5 Open DX4/100 (V8T) DX4/120 (V8T) 2-3 2-3 2-3 Open 3-4 3-4 Open Open Open Open 1-2,3-4 4-5 Open P24D 1-2 Open 1-2 Open 1-2,3-4 4-5 2-3 AMD CPU Junper JP12 JP13 JP14 JP15 JP16 JP17 JP18 JP19 JP20 JP21 JP22 JP23 JP24 DX4/100 (V8B) DX4/120 (V8B) 1-2 2-3 2-3 Open 1-2,3-4 1-2,3-4 1-2 Open 1-2 Open 1-2,3-4 4-5 2-3 x5-133 x5-160 1-2 2-3 2-3 Open 1-2,3-4 1-2,3-4 1-2 2-3 1-2 Open 1-2,3-4 4-5 2-3 Cyrix CPU Junper JP12 JP13 JP14 JP15 JP16 JP17 JP18 JP19 JP20 JP21 JP22 JP23 JP24 DX, DX/2 DX4 (5v) 2-3 2-3 1-2 2-3 2-3 2-3 Open Open Open Open 1-2,3-4 2-3 Open DX, DX/2 DX4 (3.45v) 2-3 2-3 1-2 2-3 2-3 2-3,4-5 Open Open Open Open 1-2,3-4 2-3 Open 5x86-100 5x86-120 2-3 2-3 2-3 Open 1-2,3-4 1-2,3-4 1-2 Open 1-2 Open 1-2,3-4 4-5 2-3 5x86-133 2-3 2-3 2-3 Open 1-2,3-4 1-2,3-4 1-2 2-3 1-2 Open 1-2,3-4 4-5 2-3 CPU Voltage 9 o’clock of CPU. If no JP48, board is 5v only. Voltage JP42 JP43 JP44 3.3 Short Open Open 3.45 Open Short Open 3.6 Open Open Short 3.75 Open Open Open 3.9 Open Open Open 5 Open Open Open JP45 Open Open Open Short Open Open System Speed 11 o’clock of CPU Speed 25 MHz 33 MHz 40 MHz JP25 1-2 1-2 1-2 JP38 Open Short Short JP39 Open Short Open JP40 Open Open Open JP46 Open Open Open Open Short Open JP48 Open Open Open Open Open 1-2,3-4 Sh 327 328 The PC Engineer’s Reference Book – Vol 2: Motherboards Speed 50 MHz JP25 2-3 JP38 Open JP39 Short JP40 Open R526 Item CPU Chipset BIOS Bus Memory (Mb) Cache (K) I/O Description Pentium SiS 551X Award 4.50pg or AMI 3 PCI/4 ISA 128 256 Notes Socket 7 30- or 72-pin sockets Pipelined burst. 1 Mb standard SRAM Up to Mode 4 IDE. R527 Item CPU Chipset BIOS Bus Memory (Mb) Cache (K) I/O Description Pentium SiS Award 4.50pg or AMI 3 PCI/4 ISA 128 256 Notes Socket 7 30- or 72-pin sockets Pipelined burst. 1 Mb standard SRAM Up to Mode 4 IDE. R528 Item Form Factor CPU Chipset Description Notes Pentium Intel 82430HX Socket 7 Description Notes Pentium Intel 82430VX Socket 7 R529 Item Form Factor CPU Chipset R 533 Intel 82430VX chipset – settings below not complete! Switch JP3-5 JP19-21 Position JP3 Open JP19 Open Open Close Close JP4 Close JP20 Open Close Close Close JP5 Open JP21 Open Open Open Open Function Host bus speed 66 MHz CPU multiplier 3.5x 3x 2.5x 2x R 534 Mustang, with SiS 5571 chipset – settings below not complete! Switch JP10-12 JP18,19 Position JP10 Close Open JP18 Open Open JP11 Close Open JP19 Open Close JP12 Open Open Function Host bus speed 66 MHz 75 MHz CPU multiplier 3.5x 3x M Switch Position Close Close Close Open 1-2,3-4 close 1-2 close 1-2,3-4 open 1-2,3-4 close 1-2 close 1-2,3-4 open JP26 JP27 Function 2.5x 2x 2.4v core CPU voltage 2.7v 2.8v 3.3v CPU I/O voltage 3.45v 3.5v R 534F/G Mustang, with SiS 5571 chipset – settings below not complete! See 534 for voltage? Switch JP10-12 Position JP9 Open Close JP18 Open Open Close Close JP18,19 JP10 Open Close JP19 Open Close Close Open JP11 Close Open JP12 Close Open Function Host bus speed 66 MHz 75 MHz CPU multiplier 3.5x 3x 2.5x 2x R 540 Mustang, with Intel 430TX chipset Switch SW2 1-3 SW2 4-6 JP8-9 Position 1 Off On On Off Off On On 4 On On Off Off JP8 Open Open 2 Off Off On On Off Off On 5 On Off Off On JP9 Open Close 3 On Off Off Off Off On On 6 Off Off Off Off Function Multiplier 1.5x 2x 2.5x 3x 3.5x 4x 4.5x Host bus 55 MHz 60 MHz 66 MHz 75 MHz Host bus speed 66 MHz 75 MHz R543 Mustang GX Item Form Factor CPU Speeds (MHz) Chipset Bus Memory (Mb) I/O Video Audio Description AT Cyrix GX86 120/133/150 Cyrix Cx5510 2 PCI/3 ISA 8-128 Mb 2S, 1P, Floppy, 2 IDE, PS/2 Onboard Soundblaster compatible Notes 4 layer FPM/EDO. 4 72-pin SIMMs. Optional soundcard 329 330 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper JP1 Position 1-2 2-3 Function Normal Clear CMOS JP49 R 557 MIG, with Intel 430TX chipset Jumper JP1-3 JP7 JP8-9 Position JP1 JP2 Open Close Open Close Open Open 1-2,3-4,5-6 open JP8 JP9 Open Open Open Close JP3 Close Open Open Function Multiplier 2.5x 3x 3.5x Split Rail CPU Host bus speed 66 MHz 75 MHz R 581A Mustang-AGP. SIS 5591/5595 chipset Jumper JP1-3 JP8-10 Position JP1 1-2 2-3 1-2 2-3 1-2 2-3 JP8 Open Close Close Open Open Close Close Open JP2 1-2 1-2 2-3 2-3 2-3 2-3 JP9 Open Open Close Close Open Open Close Close JP3 2-3 2-3 1-2 1-2 2-3 2-3 JP10 Open Open Open Open Open Close Close Close Function Host 83.3 75 75 68.5 66.7 60 Multiplier 1.5x 2x 2.5x 3x 3.5x 4x 4.5x 5x AGP 64 64 75 68.5 66.7 60 PCI 32 32 37.5 34.3 33.4 30 MTI See M-Technology www.mtiusa.com Mustek (510) 475 5730 Mycomp Taiwan Mycomp Corp. www.mtl.mynix.com. See Mynix Technology or TMC Award BIOS ID The last two numbers of the BIOS part number. M Code 9C-00 Motherboard AI5TV Code 331 Motherboard Mylex www.mylex.com Northgate/Mylex 80486 EISA motherboard with BIOS version 6.04q is not compatible with emm386.exe. The newest revision is 6.15, which is compatible. Award BIOS ID The last two numbers of the BIOS part number. Code 2-B3 Motherboard MPXS486 Code Motherboard MAE 486 Jumper J1 J2 Position In* Out 1-2* 2-3 Function Cache enabled Disabled 33 MHz CPU 25 MHz CPU Reserved J15 J16 Memory 1 Mb 2 Mb 4 Mb 8 Mb 16 Mb 32 Mb J3 Out 1-2 Out 1-2 Out 1-2 J4 Out 1-2 Out 1-2 Out 1-2 Reserved J5 Out 1-2 Out 1-2 Out 1-2 J6 Out 1-2 Out 1-2 Out 1-2 J7 Out Out Out Out 2-3 1-2 J8 2-3 1-2 1-2 1-2 1-2 1-2 J9 Out Out 2-3 1-2 1-2 1-2 J10 1-2 1-2 1-2 2-3 2-3 2-3 J11 1-2 1-2 1-2 1-2 1-2 2-3 J12 1-2 2-3 2-3 2-3 2-3 2-3 MDE 486 Jumper JP1 JP7,11-13 JP8-10 JP14-17 JP18 JP19 JP20 Position Out In* JP7 Out In JP8 Out 2-3 1-2 JP14 2-3 2-3 2-3 1-2 Out* In 1-2 2-3* 1-2* 2-3 JP11 Out In JP9 2-3 1-2 1-2 JP15 1-2 2-3 1-2 2-3 JP12 Out In JP10 Out In In JP16 2-3 1-2 1-2 1-2 JP13 Out In JP17 1-2 2-3 2-3 2-3 Function Mono display Colour display Cache memory 64K* 256K CPU 486SX 487SX 486DX CPU Speed 20 MHz 25 MHz 33 MHz 50 MHz (not MSI 486) AT CLK (ISA Bus Clock) AT CLK (ISA Bus Clock) 50 MHz (not MSI 486) LPT2 IRQ5 LPT1 IRQ7 Enable all I/O ports Disable 332 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper JP21 Position 1-2 2-3* Out Function Reset CMOS Internal battery External battery MDI 486 As for MDE 486 MNE 486 Jumper J1 J2 J13 J15 J16 J20 J17 J18 J19 Memory 1 Mb 2 Mb 4 Mb 8 Mb 16 Mb 32 Mb Position Function Reserved Reserved Reserved Reserved Reserved Reserved COM1 IRQ4 COM2 IRQ3 LPT1 IRQ5 LPT2 IRQ7 Enable I/O subsystem Disable 1-2 2-3 1-2 2-3 1-2 2-3 J3 Out 1-2 Out 1-2 Out 1-2 J4 Out 1-2 Out 1-2 Out 1-2 J5 Out 1-2 Out 1-2 Out 1-2 J6 Out 1-2 Out 1-2 Out 1-2 MPXS486 Possibly Chaintech MSI 486 As for MDE 486 MTI 386 Jumper JP1 JP2 JP4 JP5 Position 1-2* 2-3 2-3 1-2* 1-2 2-3* Function Colour display Mono 2nd port is LPT1 Enable I/O peripherals 32Kx8 SRAM 32K/64K cache Position 2-3 1-2* 2-3 1-2* 2-3 Function LPT1 IRQ5 Colour display Mono Enable I/O peripherals Disable MTX 386 Jumper JP1 JP2 JP3 J7 Out Out Out Out 2-3 1-2 J8 2-3 1-2 1-2 1-2 1-2 1-2 J9 Out Out 2-3 1-2 1-2 1-2 J10 1-2 1-2 1-2 2-3 2-3 2-3 J11 1-2 1-2 1-2 1-2 1-2 2-3 J12 1-2 2-3 2-3 2-3 2-3 2-3 M MWS 386 Jumper SW1 SW2-4 SW4 SW5 SW6 SW7 SW8 J25 J26 Position On Off SW2 SW3 Off On Off Off Off On On Off On Off On Off On On Off On Off Bus speed? (MHz) 1-2 2-3 3-4 4-5* 1-2 2-3* SW4 On On Off Off Function 32-bit memory card in Slot 8 Not installed Total Memory 1 Mb 2 Mb 4 Mb 8 Mb 256K DRAMs 1 Mb DRAMs EGA BIOS at C000 EGA BIOS at E000 No 80387 System boots at 8 MHz System boots at 16,20,25 MHz BIOS uses colour display at POST BIOS uses mono display at POST 386/16 386/20 386/25 5.33 6.67 8.33 4 5 6.25 4 5 6.25 4 10 12.5 128K EPROM 256K EPROM MXA 386 Jumper S1-3 S4 S5 S6 S7 S8 S9 S10 Position S1 Off On Off On Off On On Off* On* Off On Off* On Off* On* Off On Off* On* Off S2 On On Off Off On On J1-4 S3 Off Off On On On On Function Total Memory 1 Mb 2 Mb 4 Mb 8 Mb 16 Mb 32 Mb No cache 0C0000-0CFFFF Cache 0C0000-0CFFFF enabled No cache 0D0000-0DFFFF Cache 0D0000-0DFFFF enabled No cache 0E0000-0FFFFF Cache 0E0000-0FFFFF enabled No ISA bus memory ISA bus memory No 80387 80387 installed Colour display Mono display Cache enabled Disabled Reserved MXS 386 Jumper SW1 S1-2 Position S1 Off Off S2 Off On Function Memory 100 ns FPM 4 page active 100 ns FPM 1 page active 333 334 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper SW3 S1 S2 S3 S4 S5 S6 J6 J8 J10 Position On On Off On* Off On* Off* On Off* On Off On Off On 1-2 2-3* Out* In 1-2 2-3 Mynix www.mtl.mynix.com Off On Function 100ns non-FPM 120ns non-FPM Disable serial port Enable Disable parallel port Enable Serial port is COM1 Serial port is COM2 Parallel port is LPT1 Parallel port is LPT2 IRQ3 disabled IRQ3 enabled IRQ4 disabled IRQ4 enabled 512K EPROM 256K EPROM Mono display Colour display LPT1 IRQ7 LPT2 IRQ5 N NEC APC IV 286 Jumper 22H1 S1, 6-7 S2 5-8,4-9 S3 3-10,2-11 S4, 1-12 S5 (18K2) S6 (5N2) Position In Out 4-9,3-10 4-9,2-11 5-8,3-10 In Out 1-4 2-3 None 3-6,4-5 1-8,2-7 S7 (6N1) S10(14D) S8(4N1) S9(10) S11A S11B P10 2-3,1-8 4-5,3-6 1,2,3,8,9 4 5 6 7 3-2 2-1 On Off 1 8 Off 1-2 1-3 1-4 Function Determines RAS and ALE signals earlier. Normal 8-bit I/O, 4 waits 3 wait I/O cycle for device at 000-0FF 2 wait I/O cycle for device at 000-0FF No wait memory cycle 1 wait (normal) 256Kx1 in Bank 0 (512K) 256Kx1 in Bank 0, 64Kx1 in Bank 1 (640K) 256Kx1 in Bank 0, 256Kx1 in Bank 1 (1 Mb) 0E(FE) – Reserved on I/O channel 0F(FF) – Location 7K, 7M enable 0E(0F) - Location 7K, 7M enable 0F(FF) – Compatible ROM enable 27128 27256 Reserved Enable Parallel Enable serial CH1 Enable serial CH2 Ch1=COM1, CH2=COM2 (Off=reversed) EPROM ROM Type MASK ROM Type Colour display Mono RS232 receive enable RS232 transmit enable Reserved 16 MHz CPU 11.7647 MHz CPU 20 MHz CPU 336 The PC Engineer’s Reference Book – Vol 2: Motherboards PM1 286 Jumper 22J2 15K2 14G1 2G1 20D1 Position Out In 2-3 1-4 None 1-2 2-3 1-2 2-3 2-3 1-2 Function ALE and RAS asserted normally Early 256Kx1 in Bank 0 (512K) 256Kx1 in Bank 0, 64Kx1 in Bank 1 (640K) 256Kx1 in Bank 0, 256Kx1 in Bank 1 (1 Mb) EPROM MASK ROM 27256 27128 Normal floppy Special floppy SW14A Switch S1 S2 S3 S4 S5 S6 S7 S8 Position On On On On On On Off* On Off Function Reserved Enable LPT1 Enable COM1 Enable COM2 Reserved Enable floppy Secondary floppy controller I/O address Primary floppy controller I/O address Colour display Mono Position S1 Off On On S2 On On Off SW14B Switch S1-3 S4 S5 S6 On On Off S3 On On On Function System ID APC IV Power mate 1 APC IV/APC IV E APC IV Power Mate 2 Reserved Reserved – test Mode IBM Compatible ROM Not used (selects APC Mode ROM) PM 286+ Switch 1 Switch 1 2 3 4 5 6 7 8 9 10 Position On Off On On On Off On On On Off* On Off Off On Function 8 MHz 80287 10 MHz 80287 Enable video Enable COM1 Serial port COM1 3F8h Serial port COM2 2F8h Enable LPT1 Enable floppy Primary floppy controller I/O address Secondary floppy controller I/O address Colour display Mono Reserved Enable Mouse N Jumper S1 Position 1-2 2-3 1-2 2-3 S3 2-3 1-2 1-2 2-3 1-2 2-3 Out S8 1-2 2-3 S2 S3,5 S4 S6 S7 S8,9 S5 2-3 1-2 S9 1-2 2-3 Function Serial port IRQ3 Serial port IRQ4 Enable power-on password Disable ROM Type 27C256 27C512 512K base memory 640K base memory Standard display Extended mode with additional oscillator Reserved RTC MC146818 DS1287 PM1 286+ Jumper 20H2 12J2 12J3 Position 1-2 2-3 1-2 2-3 1-2 2-3 Function 500/250/300/150/125 Kbps floppy transfer rate 500/250/125 Kbps 27128 27256 MASK ROM EPROM SW16C1 Switch 1 2 3 4 5 6 7 8 Position On Off On On On Off On On Off* On Off Function 8 MHz clock 12 MHz clock Enable LPT1 Enable COM1 Enable COM2 Reserved Enable floppy Secondary floppy controller I/O address Disable system board floppy Colour display Mono SW16B2 Jumper S1 S2 S3 S4 S5 S6 Position Off On Off On On Off On Function Reserved Reserved Reserved Reserved Test mode off Test mode on Reserved Position 1-2 2-3 Function CPU address pipeline mode CPU address non-pipeline mode PM 386 Jumper 14L2 337 338 The PC Engineer’s Reference Book – Vol 2: Motherboards SW1 Switch 01-3 04 05 06 Position 01 On Off On Off On Off 02 On 03 Off Function Unit ID Default Reserved Test mode off Test mode on 0 wait state 1 wait state SW2 Switch 01 02 03 04 05 06 07 08 09 10 Position On Off On Off On On On On On On Off Off Off Function Colour display Mono Floppy secondary address Floppy Primary address Enable floppy Enable COM2 Enable COM1 Enable LPT1 Enable maths coprocessor 80387 80287 Reserved Reserved PM1 386/33e Jumper 2N1 12C3 12C2 10B1 16F1 13G1 10H1 9M1 3E1 16C2 16C3 16C4 Position In Out In Out In Out 1-2 2-3 In Function Test Mode on Test Mode off Enable pipeline mode Disable pipeline mode 385 reserve 1 pin is tied low 385 reserve 1 pin is tied high 385 READY output to CPU delayed till end of posted write cycle on 385 local bus 385 READY output to CPU transparent to CPU Insert 3 BCLK (16-bit cycles) or 11 BCLK (8-bit cycles) between back-back ISA I/O cycles from the CPU for I/O recovery time. Insert 1 BCLK between back-back ISA 8/16-bit I/O cycles from the CPU for I/O recovery time. Out 1-2 2-3 1-2 In 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 25 MHz CPU speed 33 MHz CPU speed Enable password Enable manufacturing switch 500/250/300/150/125 Kbps floppy transfer rate 500/250/125 Kbps MMRTO input tied low MMRTO input tied high MMRT1 input tied low MMRT1 input tied high MMWT input tied low MMWT input tied high Position On On On On Function Enable LPT1 Enable COM1 Enable COM2 Enable floppy SW1 Switch S1 S2 S3 S4 N Switch S5 S6 S7 S8 S9 S10 Position On Off On On Off* On On Off On Function Select second drive B First drive A Enable 80387 Base memory 0-512K Base memory 0-640K Enable PS/2 mouse Colour display Mono Reserved PM 386sx SW115G Switch 1 2 3 4 5 6 7 8 9 10 Switch S1 S2 S3 S4 S5 S6 S7 11L2 Position On Off On Off On On Off On On On On On Off On Function Colour display Mono First diskette A First diskette B Enable diskette controller Serial port is COM1 Serial port is COM2 Enable serial port Enable LPT1 Enable maths coprocessor Enable integrated VGA 0-512K 0-640K Enable PS/2 mouse Position 1-2 2-3 1-2 1-2 2-3 In Out 1-2 2-3 1-2 2-3 Out In Function Non-pipeline mode Pipeline mode Enable security lock Serial port has COM1 IRQ Serial port has COM2 IRQ Enable reset Reserved RTC battery backup RTC backup Vcc 5v Power good MC 146818 Power good DS 1287 Test mode off Test mode on PM 386sx 16i SW1 Switch S1 S2 S3 S4 Position On On On On Function Disable onboard video Disable floppy Disable password Prevent password reprogramming 339 340 The PC Engineer’s Reference Book – Vol 2: Motherboards SW2 Switch Position Out Function Test mode off PM 386sx 20 SW14F Switch 1 2 3 4 5 6 7 8 9 10 Jumper J1 J2 J3 J5 J7 J8 10K2 Position On Off On Off On On Off On On On On On Off On Position 1-2 2-3 1-2 2-3 1-2 2-3 Out 1-2 2-3 1-2 Out In Function Colour display Mono First diskette A First diskette B Enable diskette controller Serial port is COM1 Serial port is COM2 Enable serial port Enable LPT1 Enable KB controller D1 command intercept Enable integrated VGA 0-512K 0-640K Enable PS/2 mouse Function Disable password Enable Enable IDE Disable Serial port has COM2 IRQ Serial port has COM1 IRQ Reserved 27C512 ROM BIOS 27C256 ROM BIOS Disable VGA Test mode off Test mode on PM 386sx 20vi As for PM386 16I PM 386sx 33i As for PM386 16I except: Switch JP7 Position 1-2 2-3 Function LPT1 IRQ5 LPT1 IRQ7 PM 486-20e Jumper 3F1 11B5 15A1 15C3 15K1 Position 1-2 Out Out 1-2,5-6 2-3,4-5 Out Function Disable password Disable I/O recovery VGA adapter not installed LPT1=IRQ7, LPT2 IRQ5 LPT1=IRQ5, LPT2 IRQ7 Disable manufacturing loop jumper N Jumper 17H1 18F1 10A1 15A2 15A3 Position 1-2 1-2 2-3 Out In 1-2 2-3 1-2 2-3 Function Enable write data to Flash ROM 27C256 (28F256) BIOS ROM 27C512 (28F512) BIOS ROM Test mode off Test mode on Processor board normal operation Test mode Normal operation Test mode PM 486-33e As for PM 486-20e PM 486-50e As for PM 486-20e PM 486sx 25i As for PM386 16I except: Switch JP7 JP9 Position 1-2 2-3 1-2 2-3 Function LPT1 IRQ5 LPT1 IRQ7 SX/DX2 DX PM 486DX 33i As for PM 486sx 25i PM 486DX 50i As for PM 486sx 25i NewStar Engineering www.computersources.com.hk//newstar Newtech International SMT boards? Award BIOS ID The last two numbers of the BIOS part number. Code BC-00 Motherboard P55VX3 Nexcom Niagara SMD www.niagaratech.com Code Motherboard 341 342 The PC Engineer’s Reference Book – Vol 2: Motherboards NMC Peripherals Europe www.nmc-pe.de Novell 286A Jumper J3,8 J4 J5 J6 J7 J11-14 J33 J38 J39 Position J3 In In In In Out J11 In Out In Out 1-2 2-3 1-2 2-3 Function J8 J12 Out In J13 In Out J14 Out In SW1 Switch S1 S2 S3 Position On Off M C Function No wait state Wait state Reset Mono display Colour Position On Off On On On Off On Off On Off On Off On Off In In Function 256K RAM chips 64K RAM chips Enable 512-640K Memory Bank 2 enabled PC compatible keyboard AT compatible keyboard Serial port is console monitor Keyboard/monitor as console Serial port is COM1 Serial port is COM3 Parallel port is LPT2 Parallel port is LPT4 Colour display Mono Reserved Reserved 286B SW1 Switch S1 S2 S3 S4 S5 S6 S7 S8 E2 J32 Enables SW1-1 (Wait/No wait) Disables SW1-1 (Wait only) Enable LPT1 Enable COM1 Enable COM2 64K RAM 256K RAM Boot ROM size 64K 256K 6 MHz CPU 8 MHz CPU Ignore power good Enable power good External battery internal battery N 386A SW1 Jumper S1 S2 S3 S4 S5 S6 S7 S8 S9 S10 Switch W3 W4 W8 W12 J13 J14 Position On On On On Off On Off On Off On Off On Off On Off On Off Position 2-3 2-3 Function COM1 disabled COM2 disabled Parallel port disabled Parallel port is LPT2 Parallel port is LPT1 COM1 IRQ4 (S6 & 7 off) Deselect COM1 IRQ3 (S5 & 8 off) Deselect COM2 IRQ4 (S5 & 8 off) Deselect COM2 IRQ3 (S6 & 7 off) Deselect Parallel port IRQ7 (S10 off) Deselect Parallel port IRQ5 (S9 off) Deselect Function Reserved Reserved Reserved Reserved Reserved Reserved NTC Technologies See Ozzo 343 344 Notes The PC Engineer’s Reference Book – Vol 2: Motherboards O Ocean Ocean Office Automation. www.ocean-usa.com/ocean. See Octek Octek Ocean Office Automation. www.oceanhk.com Award BIOS ID The last two numbers of the BIOS part number. Code 0-00 1-00 9C 9C Motherboard Bison VI PCI Hippo 12 VIP Rhino 6 Rhino 9 Code 9C-00 AC-00 DC Motherboard Rhino 15 Rhino 12+ Rhino 6VX Olivetti CP 486 JP1 Disable system password M21 SW Bank 0 Switch 1-4 Position 1 Off On Off On Off On Off Off 2 On Off Off On On On On On 3 On On On Off Off On On Off 4 On On On On On Off Off Off Function Memory 128K 256K 384/256K on m'b + 128K exp 512/256K on m'b + 256K exp 640/256K on m'b + 384K exp 512k in bank 0 640/512K in bk 0 + 128K bk 1 640/128K in bk 0 + 512K bk 1 346 The PC Engineer’s Reference Book – Vol 2: Motherboards Switch 5 6 7 8 Position Off Off Function Coprocessor installed 8250 ACE asynchronous installed Reserved RAM Bank 0 RAM Bank 0 & 1 On Off SW Bank 1 Jumper 1 2 3 4 5,6 7,8 Position On On Off On Off On Off 5 Off Off On On 7 On Off 6 Off On Off On 8 On On Function 360K floppies Off=720K floppies 800ns startup speed 250ns startup speed HDU ROM code on motherboard HDU ROM code on controller Scroll display Slow scroll video Video adapter Mono 80x25 CGA 40 x 25 CGA 80 x 25 EGA (1.43 BIOS only) Floppies 1 drive 2 drives M24 SW Bank 0 Switch 1-4 4 5 6 7 8 Position 1 Off On Off On On Off Off Off Off Off Off 2 On Off Off On On On On On 3 On On On On Off Off On Off On Off 4 On On On Off On On Off Off Function Memory 128K/64K DRAMs 256K/64K DRAMs 384/256K on m'b + 128K exp 512K in bk 0 on m'b 512/256K on m'b + 256K exp 640/256K on m'b + 384K exp 640/512K in bk 0 + 128K bk 1 640/128K in bk 0 + 512K bk 1 256K DRAMs used 8087 installed 8250 ACE asynchronous installed Reserved 2732 EPROM 2764 EPROM SW Bank 1 Jumper 1 2 3 4 5,6 7,8 Position On Off On On Off On Off 5 Off Off On 7 On 7 Off 6 Off On Off 8 On 8 On Function 48 tpi floppies (320K) 96 tpi floppies (1.2 Mb) Slow start up for MFD (Off=Fast) HDU ROM code on motherboard HDU ROM code on controller Standard display controller Non-standard display controller Video adapter Mono CGA 40 x 25 CGA 80 x 25 1 floppy 2 drives O Jumper B G H Position 1-2 2-3 Out 1 2 Function 8 MHz floppy controller 4 MHz floppy controller Enable floppy controller 8 MHz 8087 10 MHz 8087 M24SP As for M21, except: Jumper B C,E G H Position 1-2 2-3 In Out Out 1 2 Function 8 MHz floppy controller 4 MHz floppy controller Production Test Normal Enable floppy controller 8 MHz 8087 10 MHz 8087 M240 SW A Jumper S1,2 S3 S4,5 S6,7 8 Position S1 On On Off Off On S4 On Off On Off S6 On Off On Off On Off S2 On Off On Off S5 On On Off Off S7 On On Off Off Function Memory size Disabled 256K 512K 640K EGC present Mini floppies 1 2 3 4 Display type EGA, INS or CRT not there Colour 40x25 Colour 80x25 Mono No coprocessor Coprocessor installed SW B Jumper 1 2 3 4 5 6 7 Position On Off On Off On Off On On Off On Off On Function 720K floppy 1.44 Mb floppy 5.25" floppy as A 3.5" floppy as A 5.25" floppy as B 3.5" floppy as B Floppy enabled BIOS HD on system BIOS HD on controller or no HD OGC controller installed Other video (CGA etc) Serial enabled 347 348 Jumper 8 JP1 JP2 JP3 JP4 JP5 JP6 JP7 JP8 JP9 The PC Engineer’s Reference Book – Vol 2: Motherboards Position On 1-2 2-3 Out In Out Out In Out In Function Parallel enabled 360K floppy disk change signal enabled 720K, 1.2, 1.44 Mb floppy disk change signal enabled Factory testing only Calibration of system board disk drive Factory testing only Factory testing only Normal operations Disable BIOS Reserved M28 Jumper JU1 JU2 JU3 JU4,5 JU6-8 Position 1-16 2-15 3-14 4-13 5-12 6-11 7-10 1-16,4-13 2-15,3-14 5-12 6-11 5-12,6-11 1-8 2-7 3-6 4-5 JU4 In Out JU6 In Out Out Function 512K on system board 2764/27128 User EPROM 27256 User EPROM 27128 BIOS EPROM 27256 BIOS EPROM Enable parallel port Disable serial port 5.33 MHz coprocessor 8 MHz coprocessor Video adapter only Video adapter + EGC External video adapter Reserved Colour display (Out=mono) Reserved Reserved JU5 In Out JU7 Out In In JU8 Out Out In Production Test CPU Wait State 4 5 6 M280 Jumper JU1 JU2 JU3-1 2 3 Position 1-16 2-15 3-14 4-13 5-12 6-11 7-10 8-9 1,2,3,4 5-6 7 8 Out In Out In Out In Function 512K on system board 2764/27128 User EPROM 27256 User EPROM 27128 BIOS EPROM 27256 BIOS EPROM Enable parallel port Disable serial port Reserved – always out 12 MHz 80287 (Out for 8 MHz) Flicker matrix video (Out=Dual port PGC or OEC video) External system clock (Out=24 MHz) 80287 3 wait state (Out=10) Disable burn-in Enable Mono display Colour 32 MHz clock disconnected Connected O Jumper 4 JU4 Position Out Out In Out In Out In Out In In Out In Out In JU5 JU6 JU7 JU8 JU9 JU10,11,12 Function Reserved 14 MHz clock disconnected Connected 1.8 MHz clock disconnected Connected 8 MHz system clock 12 MHz system clock 12 MHz system clock 8 MHz system clock MC146818 and RAM MC146818 clock Non-volatile RAM 8 MHz 80287 12 MHz 80287 M290 Processor board One version Jumper S1,2 S3 S4 P1 P2 P3 Position S1 On On Off Off On Off* On Off 1-2 2-3 Off Off S2 On Off On Off Function Memory 512K 1 Mb 2 Mb 2 Mb + 256K OEC/OVC adapter PGC/other adapter Burn-in Normal 256-512K RAM module 1 Mb RAM module Reserved Reserved Another version Jumper 1 2 3 4 5 6 Position On Off* On* Off On* On Off* On Off* Off* Function OEC is secondary video controller OEC is primary video controller Colour Mono Reserved – leave On CGA emulation primary mode EGA emulation primary mode CGA mode only EGA/CGA mode Reserved – leave Off Position P1 In Out In Out 1-2 P2 Out Out In In M250 Jumper P1,2 P6 Function SIMM type 256x9, 512x9 (Bank 0) 256x9, 512x9 (Bank 0&1) 1 Mbx9 (Bank 0) Reserved 40 Mb HD 349 350 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper P8 Position 2-3 In* Out Function 20 Mb HD Battery connected Not connected M250E Jumper P1,2 P6 P8 P9 P10 P11 P12 P15 P20 Position P1 1-2 2-3 3-4 1-2 2-3 In Out In Out In In 1-2 2-3 In Out In Out Function SIMM type 1 Mb, no SIMM 2 Mb, 2 512K SIMM 4 Mb, 2 512K SIMM + 2 1 Mb 1:1 HD interleave 1:3 HD interleave Battery connected Not connected 16 MHz floppy 1.2 Mb floppy HD not installed Disable serial port Enable VGA Disable Selectable hysteresis Normal hysteresis 187ns precomp 125ns precomp P2 1-2 2-3 3-4 M300 Processor board Jumper JP1,2 JP3 JP5 JP6 JP4,7-8,10 JP9 JP11 Position JP1 In In Out Out In Out In Out 1-2 2-3 All 1-2 All 2-3 In Out In Out Function JP2 Out In Out In 100ns DRAM 120ns DRAM 100ns FPM, 4 DRAM pages active 100ns FPM, 1 DRAM page active Normal Reserved Normal Reserved A20GATE signal activated through keyboard controller A20GATE signal activated in fast mode (through chipset) For 82335B For 82335A Video adapters, BIOS on board Video adapters, no BIOS on board Enable IRQ12 for mouse Disable M380T Jumper W010 A05BB W1131 K0539 W07FD W07FQ Position In In In In In Out In Out Function 14 MHz clock 32 MHz clock 24 MHz clock 1.8 MHz clock Test burn-in mode Normal operation PGC or OEC video controller Others O Jumper F01LQ Z12LU Position In Out 1-2,5-6 Function 80387 uses external oscillator on system board F01L3 Uses system oscillator Normal floppy operation M380/XP1 As for M380T M380/XP3 As for M380T M380/XP4 As for M380T M380/XP5 Jumper JPR1,2 JPR4 JP1,2 JP3,4 JP5 JP6 JP7 JP8 JP9,10 JP11,12 Position JPR1 1-2 2-3 2-3 1-2 None JP1 In Out In Out JP3 In Out In Out In In Out In Out In Out JP9 In Out JP11 Out In JPR2 2-3 1-2 JP2 In In Out Out JP4 In In Out Out JP10 Out In JP12 Out In M380/XP7 As for M380/XP5 M380/XP9 As for M380/XP5, except: Function 82385 clock 25 MHz 33 MHz Enable 12-16 Mb RAM as cache 12-16 Mb RAM managed by I/O controller Disabled Processor speed 16 or 20 MHz 25 MHz (not used) 33 MHz 40 MHz (not used) Bank (memory type) 0 (1 Mbx9 – 4 Mb) 0 & 1 (Mbx9 – 8 Mb) 0 (16 Mbx9 – 16 Mb) 0 & 1 (4 Mbx9 – 32 Mb) Enable system board RAM Enable coprocessor clock System clock 386 pipeline operating mode Non-pipeline System serial port clock External serial port clock EPROM 256K 512K Compatibility Compaq IBM 351 352 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper JPR3 Position 2-3 1-2 None Function Enable IRQ12 for mouse I/O disabled/enabled Disabled M486 ESDI Jumper JP1 Position Function Disable system password M486 SCSI Jumper JP1 Position Function Disable system password Position In Out JP2 1-2 2-3 1-2 2-3 In Function 1 memory bank 2 memory banks P500 P4.1 Jumper JP01 JP2,3 JP5 JP10 JP3 1-2 2-3 Enable RAS 0 (Bank 0) Enable RAS 1 (Banks 0&1) 1Mb SIMMs 256K SIMMs Disable power-up password P500 P5 As for P500 P4.1 P750 Jumper J3 Position In Out Function Disable system password, restore default configuration Normal Opti 3486L Jumper P4 P12-14 P25,33,100 P28 P30-32,P97 Position 1-2 2-3 P12 1-2 2-3 1-2 P25 1-2 2-3 On Off P30 Off On On Off Off On P13 1-2 Open 2-3 P33 Close Open P14 Close Close Close P100 2-3 1-2 P31 On Off On Off On Off P32 On On Off On On On P97 Off Off Off Off On On Function Double phase clock, 386 mode Single phase clock, 486 mode CPU 486DX-25/33/50, DX2 486SX-20/25 487SX-20/25 CPU Type 486 mode 386 mode Cyrix CX486DLC-33/40 Intel 386DX-33, AMD386DX-40 Frequency (MHz) if AV9107-03 clock chip is in U09. 20 25 33.33 40 40 50 O Jumper Position On Off On Off P39 On Off Off On On On Function 66.66 80 33 MHz 386 40 MHz 386 486 speed is set in BIOS (CLK/6, etc) Z386S Jumper JP1 JP2 S1 Position 1-2 2-3 Open Close Open Close S2 Function Discharge CMOS Normal Colour Mono Turbo (JP3 is LED) Normal Reset Opus PC IV 286 Jumper W11 W12 W14 W15,16 W17,18 W13,19, 20 W21 W22 W23 W24 W25 J9 Position 2-3 1-2 In W15 In Out Out In W17 In Out Out In W13 1-2 2-3 In In Out In 1-2 2-3 1-2 2-3 W16 In Out In Out W18 In Out In Out W19 In Out Out In W20 In Out In Out Function HD normal operation Old type HD (CP342) HD LED Enable floppies Serial port Enable COM1 Enable COM3 Disable COM1 Disable COM3 Serial port Enable COM2 Enable COM4 Disable COM2 Disable COM4 Parallel port Enable LPT1 Enable LPT2 Disable LPT1 Disable LPT2 Enable onboard HD Enable game port Mono display Colour External battery Onboard battery Power fail detect circuit External power good For AA batteries 353 354 The PC Engineer’s Reference Book – Vol 2: Motherboards PC V 386 Jumper JP1 J3 JP8 JP10 JP11 Position In Out In Out 2-3 1-2 2-3 In Out Function CGA, EGA, VGA MDA, HDC, Mono Onboard battery External battery Enable pipelined mode 80387 installed Not installed Weitek 3167 installed Not installed Position In Out 1-2 2-3 Out Out In 1-2 Function CGA, EGA, VGA MDA, HDC, Mono Onboard battery Clear CMOS External battery at J10 CPU clock divided by 6 (OSCIN/6) CPU clock divided by 8 (OSCIN/8) RA12 32K cache RA13 64K cache RA14 128K cache RA15 256K cache HD LED PC VII 40 Jumper JP1 JP2 JP3 JP9 2-3 JP12 Panther 386sx Jumper JP1 JP2-4 JP5 JP7 JP8 JP9 JP10 JP11 JP12 JP13 JP14 JP15 JP16 JP17 JP18 JP19 JP20 Position 1-2 2-3 JP2 In Out Out In Out 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 2-3 1-2 2-3 1-2 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 JP3 Out In In JP4 Out Out In Function Colour display Mono Turbo pin 8042 Turbo pin=27 8042 Turbo pin=24 8042 Turbo pin=23 24mA bus driver 12mA bus driver IRQ3 for mouse IRQ4 for mouse IRQ5 for mouse IRQ2 for mouse Enable mouse Enable floppy Enable onboard HD Enable COM1 Disable Enable COM2 Disable Enable LPT1 Floppy primary address 3F1 Floppy secondary address 371 HD primary address 1F0 HD secondary address 170 COM1 primary I/O address 3F8 COM1 secondary I/O address 3E8 COM2 primary I/O address 2F8 COM2 secondary I/O address 2E8 O Jumper JP21 JP23 Position 1-2 2-3 In Out Function LPT primary I/O address 378 LPT secondary address 278 Clear CMOS Normal Powerstation 486 Jumper JP1 JP2 JP3 JP4,5 JP6 W2 Position 1-2 2-3 Out In Out In In In Out 1-2 2-3 Function Clear CMOS Onboard battery External battery at J4 CGA, EGA, VGA display Mono Enable floppy Enable HD ATCLK=CLKIN/6 ATCLK=CLKIN/4 50 MHz CPU, single frequency 20,25,33 MHz CPU, double frequency 355 356 Notes The PC Engineer’s Reference Book – Vol 2: Motherboards P Packard Bell 286X Jumper J7 J14 J15 J16 J17,18 J20 J21 J22 J23 Position 1-2 3-4 In Out In Out In Out J17 1-2 2-3 In In Out In J18 2-3 1-2 Function Enable COM1 Enable COM2 RAM 0 wait state RAM 1 wait state 256Kx9 RAM 1Mbx9 RAM Disable 384K relocation Enable Parallel port LPT1 IRQ7 LPT2 IRQ5 Keylock Enable floppy Colour display Mono Enable HD 386SX 16-bit HD controller automatically disables IDE. Jumper W3 W4 W11 W12 W16 Position 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 In Function Mono display Colour Disable floppy Enable Disable onboard VGA Enable Disable IDE LED Enable Enable PS/2 mouse port 358 The PC Engineer’s Reference Book – Vol 2: Motherboards 386X Jumper J7 J11,21 J12 J14,15 J18 J19 J20 J23 J24 Position 1-2 3-4 J11 1-2 2-3 In Out J14 1-2 2-3 1-2 2-3 J21 2-3 1-2 J15 1-2 1-2 2-3 2-3 In In In Function Enable COM1 Enable COM2 Parallel port LPT1 IRQ7 LPT2 IRQ5 Colour display Mono DRAM 100ns, FPM, 4 page, 0 ws 100ns, FPM, 1 page, 0 ws 100ns, 1 ws 100ns, 1 ws Front panel connector Enable floppy Enable HD Keylock Enable PS/2 mouse port (v5 boards only) 486ES Jumper J11 J12 J13 J14 J16 J17 J22 J23, 25 26 J24 J27 J28 J29 J30-33 J34,40 J37 J39 J41 Position 2-3 1-2 In Out 1-2 2-3 In Out In Out 1-2 2-3 In Out J23 In Out In Out In Out J30 Out In J34 1-2,3-4 5-6 5-6 In Out 1-2 2-3 In Out Function Enable onboard VGA Disable Colour display Mono LPT IRQ7 LPT IRQ5 Password Override Clear password Enable I/O Disable Boot from Boot block Normal VGA IRQ Enable J25 Out In J26 Out In J31 1-2 2-3 J40 1-2,5-6 J32 1-2 2-3 3-4 J33 1-2 2-3 CPU Speed 20 MHz 25/40MHz Enable battery Disable Enable Mouse Disable External Battery Reserved Cache Size 32K 128/512K CPU Type 486DX/487SX/Overdrive 486SX (U48) Lock keyboard Unlock Onboard Speaker Auxiliary Disable onboard RAM Enable P 486I See Packmate486-25 486R/T Jumper JMP1 JMP2 JMP3 Position 1-2 2-3 1-2 2-3 1-2 2-3 Function Enable floppy Disable Colour display Mono Enable IDE Disable Reset HD LED Position In In 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 In Out 1-2 2-3 1-2 2-3 Function Enable modem Enable mouse Disable VGA Enable Enable COM3 Enable COM1 Enable COM4 Enable COM2 Enable LPT2 Enable LPT1 LPT IRQ5 LPT IRQ7 Interlaced VGA Non-interlaced VGA HD secondary address HD primary address Floppy secondary address Floppy primary address Auxiliary fan External speaker Onboard 486 486SX 487 No cache (NC) Cache (C) Front panel Keylock J4 J9 486SX-20 Jumper J11 J12 J13 J14 J15 J16 J18 J19 J20 J22 J23 J26 J27 J28 1-2 2-3 5-6 3-4 1-2 3-4 1-2 J29 J30 720 Something to do with AST? (Similar jumper labels to Bravo MS 5100). Jumper J4L1A J4L1B Position 1-2 2-3 2-4 5-6 1-2 Function Password enabled Password disabled Normal Clear CMOS Allow access to setup 359 360 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper J4L1C J4L1D J6A2 J6C2 J4G1? J6C2 Position 2-3 1-2,5-6 2-3,4-5 2-3,5-6 1-2,4-5 2-3,4-5 2-3,5-6 1-2,5-6 1-2 2-3 1-2,4-5 2-3,5-6 1-2,4-5 2-3,5-6 Function Denied 66 MHz host bus speed 60 MHz 50 MHz 1.5x CPU clock 2x 2.5x 3x Standard voltage (3.3v) VRE (3.6v) 2 PCI slots on riser 2 PCI slots on riser Normal Recovery Mode Force 486-25 As for 486R/T IS-VT286 Jumper J1 J2 J7 J12 SW1 S1-4 Position 1-2 2-3 1-2 2-3 1-2 2-3 S1 On Off S2 On Off S3 Off On Packmate 486/25 Jumper E2-E3 E3-E4 E5-E6 E6-E7 Position Function 256K EPROM 512K EPROM Enable password Disable Position 1-2 1-2 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 In Out In Out 1-2 Function Enable floppy Enable IDE Modem COM1 Modem COM3 Serial port is COM2 Serial port is COM4 Parallel port is LPT1 Parallel port is LPT2 LPT IRQ7 LPT IRQ5 VGA IRQ9 No interrupt Mouse IRQ12 No interrupt Disable VGA PB 100 Jumper Jfdc Jhdc Jc13 Jc24 Jlps Jirq Jvrq Jmrq Jvgas S4 Off On Function Reset 1Mb (512/512) 512 or 640K Colour display Mono Low system clock High system clock ROM size 128K/chip (4) 256K/chip (2) P Jumper Jgams Jvd Position 2-3 1-2 2-3 In Out Function Enable VGA Enable game port Disable Colour display Mono PB 1000 Jumper S1 S2 S3,4 S5 S6 S7 S8 Position On Off On Off S3 On Off Off On Off Off On On S4 On On Off Function Colour display Mono 256K BIOS EPROM 128K BIOS EPROM System speed 10 MHz CPU 8 MHz CPU 5 MHz CPU Primary floppy address 3Fh Secondary floppy address 37h Reserved Reserved Reserved PB 22/23 Jumper J11 J12 J13 J14 J15 J16 J18 J19 J20 J22 J23 J26 J27 J28 J29 J30 Position In In 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 In Out 1-2 2-3 1-2 2-3 1-2 2-3 5-6 3-4 1-2 3-4 1-2 Function Enable modem Enable mouse Enable VGA Disable Enable COM1 Enable COM3 Enable COM2 Enable COM4 Enable LPT1 Enable LPT2 LPT IRQ7 LPT IRQ5 Interlaced VGA Non-interlaced VGA HD primary address HD secondary address Floppy primary address Floppy secondary address Auxiliary fan External speaker Onboard 486 486SX 487 No cache (NC) Cache (C) Front panel Keylock 361 362 The PC Engineer’s Reference Book – Vol 2: Motherboards PB 25/33 Jumper Jfdc Jhdc Jc1s Jc2s Jlps Jirq Jpipe Jrom Jvd Position 1-2 1-2 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 Out 1-2 2-3 1-2 Function Enable floppy Enable IDE Enable COM1 Disable Enable COM2 Disable Parallel port is LPT1 Parallel port is LPT2 LPT IRQ7 LPT IRQ5 Non-pipeline mode (In is reserved) 512K ROM (Out=256K) Colour display Mono Position S1 Off Off On On S3 Off Off On On S2 Off On Off On S4 Off On Off On On Off On Off S1 On Off S2 On Off Position In Out In Out Function Colour display Mono Disable floppy Enable Position 1-2 1-2 1-2 2-3 1-2 2-3 1-2 2-3 Function Enable floppy Enable IDE Modem COM1 Modem COM3 Serial port is COM2 Serial port is COM4 Parallel port is LPT1 Parallel port is LPT2 PB 286 Jumper S1,2 S3,4 S5 S6 S7 S8 SW2 S1-2 S3 Off On PB 286B Jumper JP1 JPF PB 300 Jumper Jfdc Jhdc Jc13 Jc24 Jlps S4 Off On Function Memory size 256K 512K 640K 640+384K System clock High speed Middle speed Low speed Low speed Reserved Reserved Colour display Mono 10 MHz 80287 4.77 MHz 80287 ROM size 128K/chip (4) 256K/chip (2) P Jumper Jirq Jvrq Jmrq Jvgas Jgams Jvd Jpip Position 1-2 2-3 In Out In Out 1-2 2-3 1-2 2-3 In Out In Out Function LPT IRQ5 LPT IRQ7 VGA IRQ9 No interrupt Mouse IRQ12 No interrupt Enable VGA Disable Diisable game port Enable Colour display Mono Pipelined 386 Non-pipelined PB 301A-B2 Jumper Jfdc Jhdc Jc13 Jc24 Jlps Jirq Jinlc Jmrq Jvgas Jgams Jvd Jpip Jspks Jbts Position 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 In Out In Out 1-2 2-3 1-2 2-3 1-2 2-3 In Out 1-2 2-3 In out PB 301B-B2 As for PB 301A-B2 PB 301C-C1 As for PB 301A-B2 Function Floppy primary address Floppy secondary address IDE primary address IDE secondary address Modem COM1 Modem COM3 Serial port is COM2 Serial port is COM4 Parallel port is LPT1 Parallel port is LPT2 LPT IRQ5 LPT IRQ7 Interlaced monitor Non-interlaced Enable mouse port Disable Enable VGA Disable Diisable game port Enable Mono display Colour Pipelined 386 Non-pipelined Enable internal speaker Disable Enable external battery Disable 363 364 The PC Engineer’s Reference Book – Vol 2: Motherboards PB 320 As for PB 300 PB 386CDM-1 As for PB 301A-B2 PB 386-16/20 Supreme Old Jumper JMP1 JMP2 Position 1-2 2-3 1-2 2-3 Function Colour display Mono Disable coprocessor Enable Position 1-2 2-3 1-2 3-4 5-6 1-2 2-3 1-2 2-3 Function Colour display Mono 80387 No 80387 80287 256K EPROM 512K EPROM Disable aux IOCS16 Enable New Jumper JMP1 JMP2 JMP3 JMP4 PB 386-25 Rev D Same as Samsung SD 820 Jumper E1-E2, E4-E5 E7-8, E10-11 E8-9, E11-12 E13-14 E14-15 E16-17 E17-18 E19-20 E20-21 E22-23 E23-24 E25-26 E26-27 E28-29 E29-30 E34-35 E35-36 E37-38 E38-39 E41-42 E40-41 E53-54 E55-56 Out In In In Out Out E57-58 Function 100ns SIMMs 256K SIMMs 1 Mb SIMMs Enable LPT1 Disable Leading edge printer acknowledge Trailing edge printer acknowledge Enable LPT2 Disable Enable COM1 Disable Enable COM2 Disable Maths copro installed Not installed Enable keyboard reset Disable Unix system Non-Unix Colour display Mono SIMM Type Static column FPM Standard RAS/CAS 64K ROM P Jumper E58-59 E60-62 Out Out In In E61-63 Out In Out In Function 128K ROM Total RAM 1 Mb 2 Mb 4 Mb 8 Mb PB 386-25 Rev F Jumper E2-3 E3-4 E5-6 E6-7 E8-9 E9-10 E11-12 E12-13 E14-15 E15-16 E18-19 E17-18 E23-24 E24-25 E35-36, E30-31, E33-34, E39-40 E32-33, E35-36, E39-40, E30-31 E33-34, E36-37, E38-39, E29-30 E32-33, E36-37, E38-39, E29-30 E42-43, E44-45 E42-43, E45-46 E41-42, E44-45 E47-48 E48-49 PB 386-33 Same as Samsung SD 830 Jumper E2-4 E3-5 Out Out In In Out In E6-8 E7-9 Out Out Out In In Out In In E16-18, E17-19 E18-20, E19-20 E25-26 E26-27 E28-29 E29-30 E31-32 E32-33 E34-35 E35-36 Function RAM Type RAS/CAS FPM Static column Total RAM 1 Mb 2 Mb 4 Mb 8 Mb 256K SIMMs 1 Mb SIMMs Enable LPT1 Disable LPT1 Enable LPT2 Disable Enable COM1 Disable Enable COM2 Disable Function Leading edge printer acknowledge Trailing edge printer acknowledge Enable LPT1 Disable LPT1 Enable LPT2 Disable Enable COM1 Disable Enable COM2 Disable Colour display Mono 64K ROM 128K ROM 1 Mb RAM 2 Mb RAM 4 Mb RAM 8 Mb RAM Static column RAM FPM Standard RAS/CAS Onboard RAM 100ns Onboard RAM 85ns 365 366 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper E37-38 E38-39 E40-41 E41-42 E43-44 E44-45 E46-47 E47-48 E49-50 E50-51 Function Mono display Colour Enable keyboard reset Disable Maths copro installed Not installed Leading edge printer acknowledge Trailing edge printer acknowledge 64K EPROM 128K EPROM PB 400DX-33 Jumper J8 J10 J12 J14 J16 J17 J18 J20 J22 J23 J24 J26 J29 J30 J31 J34 J35 J36 Position In Out 1-2 2-3 1-2 2-3 In Out In Out In 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 3-4 1-2,5-6,7-8 1-2,5-6,9-10 In Out In Out 1-2,3-4 3-4 1-2 None None 1-2,5-6,7-8 1-2,3-45-6,9-19 PB 400DX2-50 As for PB 400DX-33 Function Enable onboard battery External battery Enable onboard VGA Disable Disable game port Enable Normal VGA Enable VESA Colour display Mono Enable PS/2 mouse port Enable COM1 Enable COM3 Enable COM2 Enable COM4 Enable LPT1 Enable LPT2 LPT IRQ7 LPT IRQ5 IDE primary address IDE secondary address Floppy primary address Floppy secondary address Onboard buzzer External speaker 486SX 486DX/DX2 487SX, P23T, P24T Upgrade CPU in U74 No upgrade CPU 486DX2 No DX2 16 MHz CPU 20 MHz CPU 25 MHz CPU 33 MHz CPU 64K cache 128K cache 256K cache P PB 400SX-20 As for PB 400DX-33 PB 400SX-25 As for PB 400DX-33 PB 410 Jumper J11 J12 J13 J15 J16 J17 J22 J23-26 J24 J27 J28 J29 J30-33 J34,40 Position 1-2 Short Open 1-2 2-3 Short Open Short 1-2 2-3 Short J23 Short Open Open Open Short Short Short Open J30 Open Short Short J34 1-2,5-6 1-2,5-6 5-6 3-4 J25 Open Short Short Open J26 Open Short Open Short J31 1-2 2-3 2-3 J40 1-2,5-6 3-4 3-4 1-2,5-6 J32 1-2 2-3 2-3 J33 1-2 1-2 2-3 Function Disable VGA Colour Mono LPT IRQ7 LPT IRQ5 Enable game port Disable Enable I/O Normal Boot Block Enable VGA IRQ9 CPU speed 20 MHz 25 MHz 33 MHz 40 MHz Enable onboard battery Enable mouse port External battery connector CPU > 33 MHz CPU <= 33 MHz Cache 32K 128K 512K CPU type 486DX, ODPR 487SX, POD 486SX No upgrade CPU PB 420(T) As for PB 410 PB 430 Jumper J11 J12 J13 J16 J17 J22 Position 1-2 Short Open 1-2 2-3 Short 1-2 2-3 Short Function Disable VGA Colour Mono LPT IRQ7 LPT IRQ5 Enable I/O Normal Boot Block Enable VGA IRQ9 367 368 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper J23-26 J24 J27 J28 J30-33 J34,40 Position J23 Short Open Open Open Short Short J30 Open Short Short J34 1-2,5-6 1-2,5-6 5-6 3-4 J25 Open Short Short Open J26 Open Short Open Short J31 1-2 2-3 2-3 J40 1-2,5-6 3-4 3-4 1-2,5-6 J32 1-2 2-3 2-3 J33 1-2 1-2 2-3 PB 440(T) As for PB 430 PB 450 Jumper J8 Jcol J9 Jvirq J10 Jpwdclr J11 Jgams J15 Jdack J16 Jdrq J17 Jbbe J18 Jpare J19 Jvgae J20 Jio J25 Jsel J26 Jcsize J31 J36 Jspk J37 Jobmd J39 Jacf J40 Jacd J41 Jace Position In Out In Out In In J15 1-2 2-3 1-2 2-3 1-2 2-3 1-2 1-2 1-2 2-3 Any Open 1-2,3-4 1-2,3-4 5-6 Open 3-4 Open Open Close 1-2 1-2,3-4 2-3 1-2 1-2,3-4 2-3 J16 1-2 2-3 Function Colour display Mono Enable video IRQ 9 Disable Clear password Enable game port ECP DMA Channel 1 Channel 3 Boot block Normal Enable parity Disable Disable VGA Disable I/O 25 MHz CPU 33 MHz CPU No cache 128K 512K 486DX, P24T 486SX External speaker Internal speaker Enable memory All other Alternate CPU No SMM With SMM All other No SMM With SMM All other Function CPU speed 20 MHz 25 MHz 33 MHz 40 MHz Enable onboard battery Enable mouse port External battery connector Cache 32K 128K 512K CPU type 486DX, ODPR 487SX, POD 486SX No upgrade CPU P PB 470 Same as Zenith Z-Station 510 Jumper J8 Jpwdclr J9 Jcol J12 Jirq9 J13 Jio J14 Jbte J15 Jvgae J16 Jpare J23 Jca2/3 J25 Jcal7/2 J24Jcsize J27dack J28drq J30 Jeride J31 Jbte J32 Jsel J33 Jsx J34 Jret J35 Jdev J36 J(3.3v) J37 Jmul J40 Jspk Position In In Out In 1-2 1-2 2-3 1-2 1-2 2-3 Any 1-2 2-3 1-2 Any None Open 1-2,3-4 J27 1-2 2-3 1-2 2-3 Closed 1-2 2-3 5-6 1-2,3-4 1-2 2-3 Closed 1-2,3-4 3-5,4-6 None 3-4 1-2 Open 3-4 J28 1-2 2-3 Function Clear password Colour display Mono Enable video IRQ 9 Disable I/O Boot block Normal Disable VGA Enable parity Disable No cache 128K 256K 512K No cache 128K 256K 512K ECP DMA Channel 1 Channel 3 Enable (?) Disable Enable onboard battery 25 MHz CPU 33 MHz CPU SX CPU Others Reserved All CPUs Enable 3.3v CPU 5v CPU x3 CPU x2 CPU Other External speaker Internal speaker PB 500 Jumper S1 S2 S3,4 J6 Position On Off On Off S3 On Off Off On Out 1-2 S4 On Off On Off Function Serial port is COM2 Serial port is COM1 Parallel port is LPT2 Parallel port is LPT1 Video Type Auto select 80x25 mono 80x25 colour 40x25 colour 2764/27128/27256 2764/27128/27256/27512 369 370 The PC Engineer’s Reference Book – Vol 2: Motherboards PB 520 Jumper J7A1 J1G2 J12H1 J13H1 J13H3 Position 4-5 5-6 1-2 3-4 5-6 7-8 1-2 3-4 5-6 7-8 1-2 3-4 5-6 7-8 Function 66 MHz (not used) 60 MHz Turbo switch Recovery Normal Program Flash Write protect Normal Clear CMOS Enable password Disable Mono Colour Enable setup Disable PB 520R Jumper J13 J14 J15 J16 J17 J18 J19 J20 Position 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 Function Not used 66 MHz (not used) 60 MHz Mono display Colour Normal Clear password Flash boot block recovery mode Normal Flash write enable Flash write protect Clear CMOS Normal Enable CMOS setup PB 55 Switch JP2 JP3 JP4 JP5 JP7 JP8 JP9 JP10 JP11 JP12 JP14 JP15 JP30 Position In Out In In Out In Out In Out In In Out 1-2 2-3 In Out Function Reserved Colour display Mono Reserved Enable PS/2 mouse 60Hz V/37.8KHz H 56Hz V/35.2KHz H Multi-sync monitor PS/2 or other monitor PS/2 VGA video BIOS AT VGA video BIOS Reserved Reserved Enable VGA Clear CMOS Normal Internal speaker External speaker Centronics printer port PS/2 (bidirectional) printer port P PB 540 Switch J1J1 (75/90) J1J2 (75/90) J1H1 (RCVR) J1H2 (PRG) J1H3 (SETUP) J1H4 (PED) J1H5 (MO/CLR) J1H6 (CMOS) J9N1 Position 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 Function Reserved Reserved Flash boot block recovery mode Normal Flash write enabled Flash write protected Enable CMOS setup Disable Normal Clear password Mono Colour Normal Clear CMOS 3.45v CPU 3.3v CPU PB 550 As for PB 540 PB 560 As for PB 540 PB 570 Switch 1 2 3 4 5 6 7 8 J5A2 J13J1 Position On On Off On Off On Off On Off On Off On Off On Off 1-2 2-3 1-2 2-3 PB 580 As for PB 570 PB 590 As for PB 570 Function Reserved 60 or 66 MHz 50 MHz Disable password Enable Clear CMOS Normal Disable setup Enable CPU 2x CPU 1.5x 60 MHz 50 or 66 MHz 66 MHz 50 or 60 MHz Normal BIOS recovery CPU voltage VR CPU voltage VRE 371 372 The PC Engineer’s Reference Book – Vol 2: Motherboards PB 600 Jumper J8 J9 J14 J15 J16 J17 J18 J19 J19 J29 J30 J31 J32 J37 Position In Out In Out 1-2 2-3 1-2 2-3 1-2 2-3 In Out 1-2 2-3 1-2 2-3 1-2 2-3 In Out In Out In Out In Out In Out Function Clear password Normal Quick boot Normal Boot block Normal Disable onboard I/O Enable Parity check disable (if no onboard memory) Enable Standard power supply With Standby ECP DRQ Channel 1 ECP DRQ Channel 3 ECP DACK Channel 1 ECP DACK Channel 3 CPU VR voltage (3.3v) CPU VRE voltage (3.45v) Onboard lithium battery External 60/66 MHz host bus frequency 50 MHz host bus frequency 66 MHz host bus frequency 50/60 MHz host bus frequency CPU multiplier 2x CPU multiplier 1.5x Onboard speaker External speaker PB 630 As for PB 650 PB 640 Same as Z-Station Campus Jumper J5J1 J5J2 J5K2 J9C1 J4K1 J6A2 Position 1-2,4-5 1-2,5-6 2-3,4-5 1-2,4-5 2-3,4-5 2-3,5-6 1-2 2-3 4-5 5-6 1-2 2-3 1-2 2-3 4-5 5-6 1-2 2-3 Function 50 MHz Host bus speed 50 MHz Host bus speed 66 MHz host bus speed 1.5x CPU 2x CPU 2.5x CPU Normal Clear CMOS Password enabled Clear password Normal Boot block recovery 1/3 PCI CLK ¼ PCI CLK Enable access to CMOS Deny access to CMOS Standard CPU voltage (3.3v) VRE P PB 650 As for PB 570 PB 660 As for PB 640 PB 680 Same as ZDS Cheetah PB 686 Jumper JP1 JP2 JP5 JP24,33 Position 1-2 2-3 1-2 2-3 In Out JP24 1-3,2-4 1-3,2-4 2-4 1-2 3-4 1-3 JP33 1-3,2-4 1-3,2-4 1-3 1-2 3-4 2-4 Function 128K piggy-back board always on System sees only 512K RAM Mono display Colour display 640K RAM 1 Mb RAM (not on 1 Mb motherboard) Serial port DB25=COM1, DB9=COM2 DB25=COM2, DB9=COM1 DB25=COM1, DB9 disabled DB25=COM2, DB9 disabled DB9=COM1, DB25 disabled DB9=COM2, DB25 disabled PB 800/900 Rev C/D Jumper COLOR/MONO J19 Position 1-2 2-3 1-2 3-4 Function Colour display Mono 80287-8 80287-10 (with 30-32 MHz crystal at U17) PB 88 Processor board Jumper S1 S2 S3 S4 S5,6 S7,8 Position Off On Off Off Off S5 Off On Off S7 On On PB 8810 As for PB 500. S6 On Off Off S8 On Off Function Reserved (test) Maths copro not installed Installed Reserved Reserved Display type Low res graphics High res graphics Mono Diskette drives 1 floppy 2 floppies 373 374 The PC Engineer’s Reference Book – Vol 2: Motherboards PB VX 588 Jumper S1 S2 S3,4 S5,6 S7 S8 S9 S10 S11 S12 Position Off On Off S3 On Off On Off S5 Off Off On On On Off On Off On On On On Function Reserved (On=test) Maths copro not installed Installed Total RAM 256K 512K 576K 640K Display type Mono 40x25 colour 80x25 colour EGA 1 floppy 2 floppies 8 MHz 5.5 MHz Enable video Enable serial port Enable parallel port Enable floppy S4 On On Off Off S6 Off On Off On PB VX 88 As for PBVX 588 except: Jumper S3,4 S5,6 S8 Position S3 On Off On Off S5 Off Off On On On Off S4 On On Off Off S6 Off On Off On Function Total RAM 256K 512K Reserved 640K Display type Mono 40x25 colour 80x25 colour Reserved Fast mode Slow mode Spectria Jumper J8 J9 J10 J15,16 J17 J18 J19 J20 J25 Position Close Open Close Close 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 Function Colour Mono Enable VGA IRQ9 Clear password DMA Channel 1 DMA Channel 2 Protected Boot Block Normal Enable parity Disable Disable Video Enable Disable I/O Enable 25 MHz CPU P Jumper J26 J28 J29 Not Rev D J30 J31 J32 J39 J40 J41 Position 2-3 Open Closed 1-2 2-3 Open 2-3 1-2 3-4 5-6 1-2,3-4 3-5,4-6 Function 33 MHz CPU 128K 512K Reserved All CPUs 3x CPU 2x CPU Other multiplier External battery SX All others 5v CPU (3.3v not supported) Only on Rev G board – do not change (Std/Alt CPU) Only on Rev G board – do not change (CPU SMI) Only on Rev G board – do not change (SMIACT) Victory Jumper W3 W4 W9 W11 W12 W16 Position 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 In Out Function Mono display Colour Disable floppy Enable 80C287-12 80287-6 Disable video Enable Disable HD LED Enable Enable PS/2 mouse port Disable Palit Award BIOS ID The last two numbers of the BIOS part number. Code 9C Motherboard PCI54IT Code Motherboard Panrix Slot A Made by anonymous famous manufacturer Item Form Factor CPU Chipset Bus Memory (Mb) I/O Video Description ATX Athlon AMD 750 5 PCI/1 ISA 768 Mb 2 EIDE, floppy Notes Slot A UDMA/66 3 DIMM sockets AGP 375 376 The PC Engineer’s Reference Book – Vol 2: Motherboards Palmax Pantex Rebadges Biostars. PC Chips Hsing Tech Enterprises. www.pcchips.com. www.protac.com/files/index.html – Europe. Award BIOS ID The last two numbers of the BIOS part number. Code 1-00 AC-00 Motherboard M 529 M 577 Code H-01 Motherboard 80486VIP i430VX Jumper JP1 JP2 JP3 JP4 JP5A,B JP6A-C JP7A,B JP8 JP9 JP10 Position In Out 1-2 2-3 1-2 2-3 1-2 2-3 3.3/5v A 2-3 1-2 2-3 1-2 1-2 A In Out In Out 1-2 2-3 A B C D E None 1-2 B 2-3 2-3 1-2 2-3 1-2 B Out Out In In C 1-2 2-3 1-2 1-2 1-2 Function Clear CMOS Normal PCI Clock/4 PCI Clock/3 12v Flash ROM 5v Flash ROM 2 Mb Flash ROM 1 Mb Flash ROM Voltage Selector CPU Speed 50 MHz 55 MHz 60 MHz 66 MHz 75 MHz CPU Internal Clock 2x (Intel/Cyrix) 1.5x (Intel/AMD) 2.5x (Intel) 3x (Intel) 256K cache 512K cache 3.5v CPU 2.9v 2.8v 2.7v 3.3v 2.5v RTC Chip select - Default 80486VIP Jumper JP2 JP3A-C Position 1-2 2-3 JP3C JP3A,B,C JP3B,C JP3A Function 12v Flash ROM 5v Flash ROM 25 MHz CPU 33 MHz 40 MHz 50 MHz P Jumper J4 JP7-12 JP5 A-D JP4 JP6 JP8A Position 3-4 JP7, 8A 2-3, 9A 2-3, 10A3-4, 10C 1-2 3-4, JP12A 1-2, JP12B 1-2 JP6, JP8A 1-2, JP9A 1-2, JP9B 1-2 3-4, JP9C 3-4, JP10A 3-4, JP10B 1-2 3-4, JP10C 1-2 3-4, JP14 2-3 4-5, JP12A 1-2, JP12B 1-2 JP8B 1-2, JP9A 1-2, JP9B 1-2, JP9C 2-3, JP10A 3-4, JP10B 2-3, JP10C 1-2 34, JP11 2-3, JP14 1-2 3-4, JP12A 2-3, JP12B 1-2 JP8A 1-2, JP9A 1-2, JP9B 1-2 3-4, JP9C 3-4, JP10A 3-4, JP10B 2-3, JP10C 1-2 3-4, JP14 2-3 4-5, JP12A 1-2, JP12B 1-2 JP7, JP8A 2-3, JP9A 2-3, JP10A 3-4, JP10C 1-2 3-4, JP12A 1-2, JP12B 1-2 JP8A 2-3, JP9A 1-2, JP9B 1-2, JP10A 3-4, JP10B 1-2, JP10C 1-2 3-4, JP14 2-3 4-5, JP12A 1-2, JP12B 1-2 JP 13, JP8A 1-2, JP9A 1-2, JP9B 1-2 3-4, JP 9C 3-4, JP10A 3-4, JP10B 1-2 34, JP10C 1-2 3-4, JP14 2-3 4-5, JP12A 2-3, JP12B 1-2 5A-D JP4 1-2 In 1-2 Out 2-3 In On Off 1-2 2-3 Function Discharge CMOS 486DX/DX2 AMD X5-133, Cyrix 5x86, AMD enh 486 DX2/DX4 Cyrix/IBM/Ti/SGS DX/DX2/DX4 P24D AMD DX2/DX$ DX4-SL Cyrix/IBM/SGS DX4-100 (Intel pinout) CPU Voltage 3.3 4 5 2x CPU Intel, 5x Cyrix, 4xAMD 3x CPU 2x AMD DX4 3x AMD DX4 M 506 Jumper JP1,2 JP3 JP4 JP5 JP6 JP9 JP10 JP11 Position 1-2 2-3 1-2 2-3 In Out A In Out In 1-2 2-3 1-2 2-3 1-2 2-3 A In Out In Out B In In Out B Out Out In In Function LPT DMA1 LPT DMA3 AT bus CPU/6 AT bus CPU/8 12v Flash ROM 5v Flash ROM CPU Speed 50 MHz 60 MHz 66 MHz 3.5v VRE 3.3v STD/VR 256K cache 512K cache 5v SRAM 3.3v SRAM Clock Multiplier 2x 1.5x 2.5x 3x M 529 Same as Elpina/Amptron PM 7400 v1.0. Comes from Hsin Tech M 559 Jumper JP3 JP4 Position Out In In Out 377 Function Enable Sound pro Disable Special Microphone Normal 378 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper J5 JP6 JP8 Position 1-2 2-3 A In Out Out Out Out Out 1-2 2-3 B Out In Out Out Out Out C Out Out In Out Out Out D Out Out Out In Out Out E Out Out Out Out In Out Function Normal Clear CMOS CPU Core Voltage 3.5v 3.3v 3.2v 2.9v 2.8v 2.5v 12v Flash ROM 5v Flash ROM M 570 v3.0 Item Form Factor CPU Chipset Bus I/O Video Jumper JP2 JP3 JP5 JP6 JP7 Description AT Pentium Notes Socket 7 100 MHz bus speed 3 PCI/2 ISA 2S, 1P, USP, PS/2 Position 1-2 2-3 1-2 2-3 A 1-2 2-3 2-3 1-2 2-3 1-2 2-3 1-2 A 2-3 2-3 1-2 1-2 2-3 A Out Out Out Out In In In In Out Out Out Out In In In In B 1-2 2-3 1-2 2-3 1-2 2-3 2-3 1-2 B 2-3 1-2 2-3 2-3 2-3 B In In In In In In In In Out Out Out Out Out Out Out Out UDMA 3 AGP C 2-3 2-3 2-3 2-3 C 2-3 2-3 1-2 2-3 1-2 C Out In Out In Out In Out In Out In Out In Out In Out In D 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 D In In Out Out In In Out Out In In Out Out In In Out Out Function Normal Clear CMOS 5v DIMMs 3.3v DIMMs CPU Multiplier 1.5/3.5x 2.5x 4x 5x 2x 3x 4.5x 5.5x CPU Frequency 60 MHz 68 MHz 83 MHz 66 MHz 75 MHz CPU Core Voltage 2v 2.4v 2.8v 3.2v 2.1v 2.5v 2.9v 3.3v 2.2v 2.6v 3v 3.4v 2.3v 2.7v 3.1v 3.5v P M 571 v1.3 Item Form Factor CPU Chipset Bus Memory (Mb) I/O Jumper JP2 JP3 JP4 JP5 JP5D JP6 JP7 JP8A,B Description AT Pentium Notes Socket 7 100 MHz bus speed 4 PCI/4 ISA 2 DIMM sockets, 4 72-pin UDMA 3 2S, 1P, USP, PS/2 Position 1-2 2-3 1-2 2-3 5v 3.3v A 2-3 1-2 2-3 2-3 1-2 1-2 2-3 A Out Out Out Out Out In A 1-2 2-3 2-3 1-2 2-3 1-2 B 2-3 2-3 2-3 1-2 2-3 C 2-3 2-3 1-2 2-3 1-2 B Out Out Out Out In Out B 1-2 1-2 2-3 2-3 C Out Out Out In Out Out D Out Out In Out Out Out E Out In Out Out Out Out Function Normal Clear CMOS Disable Internal VGA Enable 5v DIMMs 3.3v DIMMs CPU Frequency 50 MHz 55 MHz 60 MHz 66 MHz 75 MHz PCI CPUCLK/2 33 MHz CPU Core Voltage 2.5v 2.8v 2.9v 3.2v 3.3v 3.5v CPU Internal Clock 1.5x/3.5x 2x 2.5x 3x P54C (Single Voltage) P55C (Dual Voltage) M 575 v1.1 Item Form Factor CPU Chipset Bus Memory (Mb) I/O Jumper JP1 JP3 JP5 Description AT Pentium Notes Socket 7 100 MHz bus speed 4 PCI/3 ISA 2S, 1P, USP, PS/2 Position 1-2 2-3 1-2 2-3 A 1-2 B 1-2 3 DIMM sockets, 4 72-pin UDMA 3 Function Normal Clear CMOS P55C (Dual Voltage) P54C (Single Voltage) CPU Internal Clock 1.5x/3.5x 379 380 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper JP6 JP7 JP9 Position 2-3 2-3 1-2 A Out Out Out Out Out Out In A In Out In Out Out In 1-2 2-3 2-3 B Out Out Out Out In Out Out B In In Out Out C Out In Out Out Out Out Out D Out Out Out Out Out In Out E Out Out Out In Out Out Out MB-5770 Item Form Factor CPU Speeds (MHz) Chipset Bus Memory (Mb) I/O Video Audio Description AT Pentium 90-350 MHz TX AGP Pro PC100 3 PCI/2 ISA 2S, 1P, USP, PS/2 Notes Socket 7 100 MHz bus speed 3 DIMM sockets, 2 72-pin UDMA 3 AGP 3D Sound Pro MB-5900 Item Form Factor CPU Speeds (MHz) Chipset Bus Memory (Mb) Cache (K) I/O Video Audio Description AT Pentium 90-350 MHz PC100 TX Pro 3 PCI/2 ISA Notes Socket 7 100 MHz bus speed 2 DIMM sockets, 2 72-pin 2S, 1P, USP, PS/2 4 Mb AGP 3D 3D Sound Pro UDMA 3 AGP Description AT Pentium II/Celeron 233-333 MHz 440EX/LX 3 PCI/2 ISA Notes MB-7170 Item Form Factor CPU Speeds (MHz) Chipset Bus Memory (Mb) Cache (K) I/O Video Audio Celeron up to 300 MHz 2 DIMM sockets, 2 72-pin 2S, 1P, USP, PS/2 4 Mb AGP 3D 3D Sound Pro UDMA 3 AGP F In In Out In In In In Function 2x 2.5x 3x CPU Core Voltage 2.5v 3.2v 2.2v 2.8v 3.3v 2.9v 3.5v CPU External Speed 60 MHz 66 MHz 75 MHz 83 MHz Enable Sound Pro Disable P MB-7290 Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Video Audio Description AT Pentium II 233-450 MHz PC100 based BXcel Notes Slot 1 Celeron 266-300 MHz 100 MHz bus speed 3 PCI/2 ISA 3 DIMM sockets 2S, 1P, USP, PS/2 UDMA 3 AGP 3D Sound MB-7300 Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Video Audio Description Micro ATX Pentium II 233-400 MHz PC100 BXpert Notes Slot 1 Celeron 266-333 MHz 100 MHz bus speed 3 PCI/2 ISA 3 DIMM sockets 2S, 1P, USP, PS/2 8 Mb AGP 3D 3D Sound Aureal UDMA 3 AGP Description AT Pentium II 233-450 MHz PC100 BX Pro Notes MB-7470 Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Video Audio Slot 1 Celeron 266-300 MHz 100 MHz bus speed 3 PCI/2 ISA 3 DIMM sockets 2S, 1P, USP, PS/2 3D AGP 3D Sound UDMA 3 64 bit 4 Mb Frame Buffer Description Micro ATX Pentium II 233-500 MHz 440 BX Notes MB-7610 Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Video Audio Slot 1 Celeron 266-333 MHz 100 MHz bus speed 3 PCI/1 ISA 3 DIMM sockets 2S, 1P, USP, PS/2 3D Sound Aureal UDMA 3 AGP 381 382 The PC Engineer’s Reference Book – Vol 2: Motherboards Triton Board (unidentified) Jumper JP1 JP3 JP5 JP6 JP7 JP9 Position 1-2 2-3 1-2 2-3 A 1-2 2-3 2-3 1-2 A Out Out Out Out Out Out In A In Out In Out Out In B 1-2 1-2 2-3 2-3 B Out Out Out Out In Out Out B In In Out Out C Out In Out Out Out Out Out D Out Out Out Out Out In Out PC Master See PC Ware PC Max See PC Ware PC Partner See Vtech Computer Systems Ltd www.pcpartner.com PC Quest See PC Ware PC Ware www.pcware.com Pine Technology www.pineusa.com Award BIOS ID The last two numbers of the BIOS part number. E Out Out Out In Out Out Out F In In Out In In In In Function Normal Clear CMOS P55C (Dual Voltage) P54C (Single Voltage) CPU Internal Clock 1.5x/3.5x 2x 2.5x 3x CPU Core Voltage 2.5v 3.2v 2.2v 2.8v 3.3v 2.9v 3.5v CPU External Speed 60 MHz 66 MHz 75 MHz 83 MHz Enable Sound Pro Disable P Code 9C Motherboard TL-LX01 Code AC-00 Motherboard PT 730A/B PT 319A 386sx Jumper JP1 JP3 JP5 Position Closed* Open 1-2* 2-3 Function Colour display Mono 387SX clock synchronous (CLK2) 387SX clock asynchronous (OSC2) Closed Open If CPU and copro are same speed, connect JP3 1-2. otherwise, 2-3 with another oscillator. Turbo speed Low speed PT-429G NetWare compatible 486 Jumper JP1 JP2 JP3 JP4 JP5 JP6 JP7 JP9-11,30 JP12 JP13-17 JP18,19 Position Short 1-2* 2-3 1-2* 2-3 1-2 2-3* 1-2* 2-3 1-2* 2-3 Open* Close JP9 JP9 On On On Off JP9 Off On Off On Open Close JP13 Open Open 2-3 1-2 JP18 2-3 JP10 On Off Off On JP10 On On Off Off JP10 Off On On Off JP11 Off On Off Off JP11 On Off On Off JP11 On On On Off JP30 2-3 2-3 2-3 1-2 JP30 JP14 2-3 1-2 2-3 1-2 JP19 Open JP15 Open Open Open Short JP16 Open Short Short Short JP30 JP17 Open Open Short Short Function Onboard battery connect External power good Internal power good Normal VGA Power 9000 VGA Enable Cx487s * MCA3 only for Master Mode Normal 3 VESA Master No CPURDY# Delay 1-T state (50 MHz VESA) Delay 1-T state (50 MHz VESA) No PADS# Delay 1-T state (50 MHz VESA) Delay 1-T state (50 MHz VESA) Enable CPU test logic Disable Clock speed (AvaSem AV9107-05 at U34) 25 MHz 33 MHz* 40 MHz 50 MHz Clock speed (Chrontel CH9007E at U35) 25 MHz 33 MHz* 40 MHz 50 MHz Clock speed (MX 8315 at U28) 25 MHz 33 MHz* 40 MHz 50 MHz CPU speed <=33 MHz (for VL bus) CPU speed >33 MHz Cache size 32K 64K 128K 256K* CPU type 486SX 383 384 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper JP20 JP21 JP22,23 JP24,25 JP32 GJ1 GJ3 Position 1-2,3-4 1-2,3-4 Open* Short 1-2 2-3 JP22 1-2 Off JP22 1-2 1-2 JP24 1-2 Off JP24 1-2 1-2 1 2 Open Close 1-2 2-3 Function 486DX/DX2* P24N/P24T 0 VESA wait state 1 VESA wait state Bank 0 30-pin SIMM Bank 2 30-pin SIMM 72-pin SIMM5 Bank 0 Bank 1 72-pin SIMM5 Bank 0 & 1 Bank 1 & 2 72-pin SIMM6 Bank 1 Bank 2 72-pin SIMM6 Bank 1 & 2 Bank 2 & 3 Green AUX #2 connector output #1 Green AUX #2 connector output #2 Normal Enable Green Function AMI Megakey keyboard BIOS Phoenix Multikey keyboard BIOS 1-2 2-3 JP23 2-3 Off JP23 2-3 2-3 JP25 2-3 Off JP25 2-3 2-3 Pionex Computers Rebadges Biostars. Powertech Award BIOS ID The last two numbers of the BIOS part number. Code HC KC Motherboard MB 532 MB 533 Code LC Motherboard MB 533 Premio Formerly CompuTrend. www.premiopc.com President Technology Award BIOS ID The last two numbers of the BIOS part number. Code A-00/01 Motherboard P54SA(B) Code Motherboard Pride Award BIOS ID The last two numbers of the BIOS part number. P Code 9C AC Motherboard Freeway II Freeway VX Code 0C Motherboard Freeway II Freeway II Freetech Board Freeway II+ Really a Freetech P586F62T - same as Genoa Turbo Express 586HX v T1B Freeway VX Really a Freetech something-or-other. Prime Vision Top? Award BIOS ID The last two numbers of the BIOS part number. Code 9C EC-00 Motherboard VT 586VX VT 586VXB v2.4G Code FC GC-00 Motherboard VT 586VX VT 586 VXB Procomp See also Compower Award BIOS ID The last two numbers of the BIOS part number. Code 9C-00 Motherboard AL B586v1.1 Pronix (714) 990 8858 See Epox Proside Mpact. www.mpactworld.com Proteam Protech Code Motherboard 385 386 Notes The PC Engineer’s Reference Book – Vol 2: Motherboards Q QDI Quality Design Innovation. www.qdigrp.com. www.qdi.se Award BIOS ID The last two numbers of the BIOS part number. Code 1-00 2-00 9C 9C-00 AC Motherboard VIP 596P93 v2.0 P5S5480P3 P61440FX P51430TX-250/Titanium 1 P51437/250A Advance 3 Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) I/O Video Performance Description ATX Notes Socket 7 66-100 MPV3 Award 1 PCI/1 ISA 256 Mb 2S, 1P, USP, PS/2 AGP Advance 5/133(E) Item Form Factor CPU Speeds (MHz) Chipset BIOS Description ATX Pentium II 66-133 Apollo Pro Award 4.51 PG Notes Slot 1 Code CC CC DC GC Motherboard P51437/250A v2.1 BIOS P51430HX-T2 Frontier P51430TX Titanium 1B P51430TX 388 The PC Engineer’s Reference Book – Vol 2: Motherboards Item Bus Memory (Mb) Description 4 PCI/3 ISA 512 SDRAM 768 EDO The usual AGP I/O Video Comments Jumper JAV JCC JKB JFSB1,2 JCLK Position Closed Open 1-2 2-3 1-2 2-3 JFSB1 Close Open - JFSB2 Close Close Open Notes 3 DIMM sockets Supports LS-120 2x PCI 2.2 compliant JCLK 1-2 1-2 2-3 Function BIOS cannot be overwritten BIOS can be flashed Clear CMOS Normal Enable keyboard password power-on(set also in BIOS) Disable CPU FSB (Overclocking) 66/100 Auto 100 133 Brilliant 1(S) Jumperless Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) I/O Video Performance Description ATX Pentium II 66-100 440 BX Award 4.51 PG 4 PCI/3 ISA 768 Mb 2S, 1P, USP, PS/2 Notes Slot 1 4.5 x CPU clock 100 MHz 3 DIMM sockets UDMA 3 AGP Average Geniux 4 Item Form Factor CPU Chipset Bus Memory (Mb) I/O Video Description ATX Pentium II/Xeon Intel 440GX 6 PCI/1 ISA 2 Gb 2 EIDE, floppy USB, IR, Intel 82558 LAN Notes SMP Slot 2 UDMA/33 4 DIMM sockets Adaptec AIC 7890AB AGP 2x Legend IV Item Form Factor CPU Bus Memory (Mb) Cache (K) I/O Video Performance Description ATX 2 Pentium II 4 PCI/3 ISA 512 Notes EIDE, floppy, AIC 7880P SCSI, 10Base T Narrow and Wide SCSIO AGP Fast Slot 1 1 slot can be extended for RAID SDRAM. 4 DIMM sockets Q Legend V Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Description ATX Pentium II 66-100 BX Award 4.51 PG 4 PCI/3 ISA 384 SDRAM 768 EDO Comments Notes Slot 1 PII at 333 3 DIMM sockets JP6 clears the CMOS Legend VII Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Comments Description Baby AT Notes Socket 370 66 LX Award 4.51 PG 3 PCI/2 ISA 256 Legend VIII Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Description ATX Pentium II 66-100 BX Award 4.51 PG 4 PCI/3 ISA 384 SDRAM 768 EDO Notes Slot 1 3 DIMM sockets Synactix 2E Item Form Factor CPU Speeds Chipset BIOS Bus Memory (Mb) I/O Video Audio Comments Description ATX Pentium III/Celeron 1000/733 Intel 815E Award 6 PCI 512 Mb 2 EIDE, floppy, USB, IR Intel 815 GMCH Analog Devices AD 1881 Notes Socket 370 FSB 166 UDMA/100 3 DIMM sockets AGP 4x Superb 1 Item Form Factor CPU Cache Chipset Bus Description Micro ATX Pentium/K6 512 Kb SiS 530 3 PCI/2 ISA Notes Super Socket 7 UDMA/66 389 390 The PC Engineer’s Reference Book – Vol 2: Motherboards Item Memory (Mb) I/O Video Audio Comments Description 512 Mb 2 EIDE, floppy USB, IR Notes 2 DIMM sockets AGP 2x Crystal C54235 Titanium 1B Item Form Factor CPU Comments Description AT Pentium Notes Socket 7. AMD, Cyrix and Intel Good board. Overclocks nicely with Windows ‘95, though Flight Sim 98 doesn’t like it. P51430HX-T2 Frontier Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Jumper JP6 JP10,11 JP16 JP7,26 JP14,15 JP21 JP22 JP23 JP24 JC Description AT Pentium 200 Intel 430HX Award 4 PCI/4 ISA 8-256 512 2S, 1P, floppy, 2 EIDE, PS/2, USB, IR Position JP6 Out Out 1-2 2-3 JP7 In In Out Out JP14 2-3 2-3 1-2 1-2 Out 1-2 2-3 In Out 1-2 2-3 In Out JP10 In Out In Out JP26 In Out In Out JP15 2-3 1-2 1-2 2-3 JP11 In Out Out In JP16 Out Out In In Notes FPM, EDO & BEDO. ECC. 4 x 72-pin SIMMs. Function System Clock 50 MHz 55 MHz 60 MHz 66 MHz CPU voltage 3.5v (single) 3.3v (single) 3.5v (double) 3.3v (double) Clock Multiplier 1.5x 2x 2.5x 3x 2.5v Core 2.7v 2.9v Hardware Green (stop clock) Normal Reserved Reserved Clear CMOS Normal P61440FX Item Form Factor CPU Speeds (MHz) Chipset Description AT Pentium Pro 150-200 Intel 440FX Notes Q Item BIOS Bus Memory (Mb) I/O Description Award 4 PCI/4 ISA 8-256 2S, 1P, floppy, 2 EIDE, PS/2, USB, IR Jumper JP3-6 Position JP3 In Out 1-2 2-3* JP14 In Out In Out In JP23 Close Close Close Close Close Close Close Close Open Open Open Open Open Open Open JP9 JP14-17 JP23-26 JP4 Out In JP5 In Out JP6 Out In JP15 In In In In Out JP24 Close Close Close Close Open Open Open Open Close Close Close Close Open Open Open JP16 In In Out Out In JP25 Close Close Open Open Close Close Open Open Close Close Open Open Close Close open JP17 In In In In In JP26 Close Open Close Open Close Open Close Open Close Open Close Open Close Open Close Notes FPM, EDO & BEDO. ECC. 4 x 72-pin SIMMs. Function System Clock 60 MHz* 66 MHz Clear CMOS Normal CPU clock multiplier 2x 2.5x 3x 3.5x 4x CPU voltage 3.5v 3.4v 3.3v 3.2v 3.1v 3v 2.9v 2.8v 2.7v 2.6v 2.5v 2.4v 2.3v 2.2v 2.1v Winnex 1 Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Sound Video Comments Jumper JAV JCC JSD JKB Description Micro ATX Pentium II 66-100 Intel 810 Award 4.51 PG 3 PCI/1 AMR AGP Position Closed Open 1-2 2-3 1-2 2-3 1-2 Notes Slot 1 2 DIMM sockets On board On board PCI 2.2 compliant Function BIOS cannot be overwritten BIOS can be flashed Clear CMOS Normal Disable on-board audio Enable Enable keyboard password power-on(set also in BIOS) 391 392 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper JSB JFS0,1 Position 2-3 Open Closed JFS0 2-3 Open Open 1-2 JFS1 2-3 2-3 1-2 2-3 Function Disable Disconnect PCI 3.3VSB Connect (use for AMR card) CPU FSB (Overclocking) 66 MHz 100 MHz 133 MHz Auto QTC P54TS Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Description Notes Pentium 75-200 Triton 3 PCI/4 ISA Quanta Quantex Rebadges Biostars. MBD-4MB2 See Biostar 8433 UUD. MBD-4PB2 See Biostar 8433 UUD. FPM/EDO. 4 72-pin sockets Normal/pipelined burst Adaptec AIC7870 SCSI R Rectron Award BIOS ID The last two numbers of the BIOS part number. Code 0C-00 Motherboard RT 4S3 Code 1-01 Motherboard Terminator 80486PCI RT 4S3 Same as Kaimei KM-S4-1 PCI rev 5.1 or Azza 4SIG RedFox Fordlian? Award BIOS ID The last two numbers of the BIOS part number. Code 9C-00 Motherboard 5ATXB rev B Code Motherboard Rise Computer Inc www.rise.com.tw. See also MTech Robotech GMB-486UNL Jumper JP1 JP2 Position In* Out 1-2 Function Colour display Mono Discharge CMOS 394 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper JP4 JP6,7,9,11 JP19 JP20 JP29-31 JP40-42 44,45 JP43 RSAptek Position 2-3* 1-2,4-5,6-7 2-3,4-5,6-7 5-6 Cache size 32K 64K 128K 256K In Out In Out System Speed 25 MHz 33 MHz 40 MHz 50 MHz Master/Slave PAL/GAL installed Not installed 1-2 2-3* Function Normal 486DX/DX2 487SX 486SX JP6 JP7 JP9 JP11 Open Open Open 2-3 Open Short Open 1-2 Open Short Short 1-2,3-4 Short Short Short 1-2,4-5 >33 MHz System speed (VL bus) <=33 MHz System speed (VL bus) VL Bus 1 wait state VL Bus 0 wait state JP29 JP30 JP31 In Out In In In Out Out Out In Out In Out JP40 JP41 JP42 JP44 Out Out Out 1-2 In In In 2-3 Normal VL Bus clock speed (same as CPU) VL Bus clock speed same phase as U4800 JP45 2-3 2-3 S S&D Award BIOS ID The last two numbers of the BIOS part number. Code AC Motherboard P6ALXA Code Motherboard Samsung DM286-12 Deskmaster. Motherboard/BIOS from Microfive. Jumper W2 W3 Position On Off On Off Function Colour display Mono Enable VGA Disable DM 386-33n Jumper NPU SNA NP1 ONBAT IRQ4 IRQ3 IRQ12 Position 1-2 2-3 In]Out In Out In Out In In In Function Maths copro not installed Installed Enable cache pipeline mode Disable Disable POST input Enable POST input Onboard battery External battery COM1 IRQ4 COM2 IRQ3 Enable mouse IRQ12 396 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper IRQ9 CRT Position Out In Out In Out Function Disable Enable VGA IRQ9 Disable Colour display Mono SW1 Switch S1-3 S4 S5 S6 S7 Position 1 On Off On Off On Off On Off On Off 2 On Off 3 Off On Function VGA Enable Disable Enable write buffer mode Disable 16-bit mode 8-bit mode PS/2 VGA PC/AT Video Older multi-frequency monitors Standard PS/2 compatible DM 386s-16 Switches as for DM386-33n MFC 6000 Motherboard/BIOS from Microfive. Switch S1 S2 S3 S4 S5 S6 S7 S8 Position On Off On Off On Off On Off On Off On Off Function 256K RAM chips 64K RAM chips 640K 512K Reserved PC compatible keyboard AT compatible keyboard COM1 as default system console Monitor/keyboard as console 10 MHz 8 MHz Reserved Colour display Mono PCT 286 Jumper J5 J4,13 J23,29 J3,22 J38,25 Position On Off J4 Off Off On On On Off On Off On J13 Off On Off On Function Enable mono display Disable Video Onboard or add-in mono Add-on CGA or EGA Not used Onboard CGA Parallel port as LPT2, IRQ5 Disable Parallel port as LPT1, IRQ7 Disable Serial port as COM2, IRQ3 S Jumper J2,24 J14 J15 Position Off On Off On Off Off On Function Disable Serial port as COM1, IRQ4 Disable XT keyboard AT keyboard Disable maintenance mode Enable S300 Switch JP4,7 S1 S2 S3,4 S5,6 S7,8 Position On Off On Off S5 On Off On Off S7 On Off S6 On On Off Off S8 On Off Function Reserved Normal Loop POST Coprocessor installed Not installed Reserved Display EGA Colour 40x25 Colour 80x25 Mono Floppies 1 drive 2 drives S500 Switch JP1 JP3 JP4 JP5 JP6,9 JP7 JP8 JP10,11 JP13 JP14 JP16 SW1 Position On On On On Off On On Off On Off 1-2 2-3 1-2 2-3 On Off 2-3 1-2 All out Up Down Function Enable parallel port Enable serial port Enable COM2 Floppy secondary address Floppy primary address Enable floppy Dual speed drive Single speed Precomp 187ns 125 ns High state RAM size Low state DMA operating clock=DMA clock DMA operating clock=SYS clock 512K 640K 10/8 MHz keyboard selectable 10 MHz 8 MHz Colour display Mono S5200 Jumper SW1 SW2 SW3 Position Off Off Off Function Enable floppy Enable SCSI Enable serial port 397 398 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper SW4 SW5 SW6 SW7 SW8,9 Position Off On Off On Off On Off On SW8 On On Off Off SW9 On Off On Off SW10 Function Serial port as COM1 COM2 Parallel port as LPT1 LPT2 Colour display Mono Primary address 2B0-2B7h Secondary address 170-177h Bank 0 Bank 1 RAM Type 4 Mb 1 Mb 1 Mb 2 Mb 1 Mb None 1 Mb 256K 256K 512K 256K None Reserved S800 Switch JMP1 JMP2,3 S1 S2,3 S4 S5 S6 S7 S8 Position In Out In Out On On Off On Off On On On On Off Function Pipelined mode Non-pipelined Maths copro enabled Not enabled Enable HD Double density floppies High density Disable floppy Enable floppy Enable COM1 Enable COM2 Enable LPT1 Colour display Mono SD700 Jumper NPX JP1,8 Position 1-2 2-3 JP1 3-4 1-2 7-8 5-6 11-12 JP8 7-8 7-8 7-8 7-8 1-2 JP2 JP3,7 JP6 JP8 JP10 In Out JP3 Off On Out In 3-4 5-6 9-10 Out In JP7 On Off Function 386SX not installed Installed Serial port 9-pin is COM1 25-pin is COM2 9-pin is COM2 25-pin is COM1 Parallel port is LPT1 Parallel port is LPT2 512K EPROM 256K EPROM HD Type Miniscribe old version Any other Enable IDE Other HD controller Disable parallel port Disable 9-pin serial port Diasble 25-pin serial port Mono display Colour S SD820 As for Packard Bell PB 386-25 Rev D SD830 As for Packard Bell PB 386-33 SM 386/33T Jumper P1 Position 1-2 2-3 In Out In Out In Out Out In A B A B P2 P3 P11 P12 P16 P17 Function 64K cache 128K 80387 installed Weitek installed 512K EPROM 256K Feature enabled Test only Page violation Test only Mouse installed Not installed Floppy enabled HD enabled SM 486/25TE Jumper J1 Position 1-2 Out 1-2 2-3 1-2 2-3 1-2 2-3 J2 J15 J16 J3 J4 J5 J6 J7 J8 J9 J10 J11 J12 1 Mb Out Out Out Out Out 2-3 Out 1-2 1-2 1-2 2 Mb 1-2 1-2 1-2 1-2 Out 1-2 Out 1-2 1-2 2-3 SM 486/33TE As for SM 486/25TE SPC 3000 Processor board Function Enable external cache Disable 33 MHz 25 MHz Disable I/O recovery delay Enable Always Reserved 4 Mb Out Out Out Out Out 1-2 2-3 1-2 1-2 2-3 8 Mb 1-2 1-2 1-2 1-2 1-2 1-2 1-2 2-3 1-2 2-3 16 Mb Out Out Out Out 2-3 1-2 1-2 2-3 1-2 2-3 32 Mb 1-2 1-2 1-2 1-2 1-2 1-2 1-2 2-3 2-3 2-3 399 400 Switch S1 S2 S3 S4 S5,6 S7,8 The PC Engineer’s Reference Book – Vol 2: Motherboards Position S6 On Off Off On S8 On On Function POST Coprocessor not installed Installed Reserved Reserved Video Low Res graphics High Res graphics Mono Auto Floppies 1 drive 2 drives S4 Off On Off On Function Serial port is COM1 Serial port is COM2 Parallel port is LPT1 Parallel port is LPT2 Video Type 40x25 colour 80x25 colour 80x25 Mono Disable On Off S5 Off On Off On S7 On Off SPC 3000V Switch S1 S2 S3,4 Position Off On Off On S3 On Off Off On SPC 6100 Jumper JP1 JP2 JP3 JP5 JP23 JP24 JP27 JP33 Position 1-2 2-3 In Out In Out 1-2 2-3 1-2 1-3 2-4 3-4 1-3 2-4 1-2 1-3 2-4 3-4 Function Reserved Mono display Colour Disable 2nd 256K of main board RAM Enable 640K main board RAM 1 Mb Enable LPT1 Enable LPT2 25-pin serial port is COM2 9-pin serial port is COM2 25-pin serial port is COM1 9-pin serial port is COM1 Enable LPT2 Enable LPT1 25-pin serial port is COM2 25-pin serial port is COM1 9-pin serial port is COM2 9-pin serial port is COM1 SPC 6500 Processor board Jumper CN2 CN5 CN6 CN8,9 Position A-C B-C A-C Function Mono display Colour Reserved Speaker 5.4 MHz maths copro enabled S Jumper CN10 CN13 Position C-B A-C B-C Function 8 MHz Daughter board connector 6 MHz 10 MHz Sam-Tec www.computersources.com.hk/samtec San-Li Award BIOS ID The last two numbers of the BIOS part number. Code 9C BC Motherboard SL-586V SL-586V+/VPXT3 vC Code CC Motherboard SP-P2LXC SL-586V Acorp 586VX? SL 586V+ Acorp 5VX32 ver B San Carlos Computers Rebadges Biostars. SBC Award BIOS ID The last two numbers of the BIOS part number. Code 9C Motherboard PC 560 Code Motherboard Seanix www.seanix.com Award BIOS ID The last two numbers of the BIOS part number. Code 0-00 Motherboard S 895 Rev 2.A See-thru Data Systems www.seethru.com Code Motherboard 401 402 The PC Engineer’s Reference Book – Vol 2: Motherboards Shuttle Holco. www.spacewalker.com Award BIOS ID The last two numbers of the BIOS part number. Code 1 1-00 9C 9C-00 AC BC Motherboard HOT 523 HOT 433 non PS/2 HOT 553/555/603 HOT 539C rev2 HOT 541/617 HOT 555/557 v1.32 Code CC EC-00 IC HC-00 KC Motherboard HOT 541 HOT 565 HOT 557 v1.5 HOT 569 HOT 555A HOT-419 486 VL Bus. CPU setting also uses resistor pack on JPA, B and C. Align pin 1 of resistor to mark on board. Jumper JP10-11 13,50 JP21-23 JPA-C JP30 JP33 JP34 JP36 JP53 JP55,69 JP58 JP59 JP60-62 Position JP10 JP11 Open Open Open Short Short Short Short Short Short Short JP21 JP22 2-3 2-3 1-2 2-3 2-3 1-2 1-2 2-3 2-3 1-2 Open 2-3 2-3 Open 2-3 Open Set resistors Set resistors Resistors + JP44,45,46 Resistors + JP44,45,46 Resistors + JP44,45,46 Resistors + JP44,45,46 Set resistors Resistors + JP48 Resistors + JP48 Short Open Open Short Close Open 2-3 1-2 1-2 JP55 JP69 1-2,3-4 Open 2-3 Short Open Close Open Close JP60-62 JP70-72 JP13 2-3 1-2 2-3 1-2 1-2 JP23 1-2 1-2 2-3 1-2 1-2 2-3 2-3 Open JP50 Open Open Open Open Short Function Cache size 64K (8Kx8) 128K (32Kx8) 256K (32Kx8 double bank) 256K (64Kx8 single bank) 512K (128Kx8) System clock 20 MHz 25 MHz 33 MHz 40 MHz 50 MHz 25 MHz (DX4, P24T) 33 MHz (DX4, P24T) 50 MHz (DX4, P24T) 486DX/DX2 486SX, UMC U5-S 486DX/DX2/DX4 S, AM486 Enh 486SX-S P24D (DX2 w/b) P24T Am486DX/DX2/DX4 Cyrix 486S Cyrix 486DX/DX2 Colour display Mono VESA bus high speed write 0 WS VESA bus high speed write 1 WS VL Bus speed >33 MHz VL Bus speed <=33 MHz Normal Delay CPU ADS# signal Reserved CPU RDY# signal delay 33/50 MHz with fast VL bus devices 33/50 MHz with slow VL bus devices P24T cache w/t P24T cache w/b P24D cache w/t P24D cache w/b Memory modes S Jumper 70-72 JP63 JP64,73 JP65 JP67 JP68 JP74 JP77 JP79 Position Short Open JP64 1-3,2-4 3-5,2-6 3-5,2-6 3-5,2-6 2-3 1-2 Close 403 Function 2 VESA master slots (J20 + another) 1 VESA master slot (J20 is slave) Power management indicator CPU voltage 5v 3.3v 3.45v 4v CPU 3x (DX4) CPU 2x (DX4) reserved EPMI connector (power save) Reserved Reserved Reserved 2-3 1-2 JP73 N/A 1-2 Open 2-3 2-3 2-3 1-2 HOT-433P 486 PCI Jumper JP1-3 JP8 JP11-14 JP15,16 JP17-32 Position JP1 2-3 1-2 2-3 1-2 1-2 2-3 or Open JP11 JP2 2-3 1-2 1-2 2-3 JP3 1-2 1-2 1-2 2-3 JP12 JP13 JP14 2-3 1-2 1-2 1-2 2-3 1-2 1-2 1-2 2-3 1-2,3-4 2-3 1-2 1-2,3-4 2-3 2-3 1-2 1-2,3-4,5-6 JP9 JP15 JP16 1-2 1-2 1-2 2-3 2-3 3-4 2-3 2-3 5-6 2-3 2-3 7-8 2-3 2-3 JP10 1-2 2-4, JP19 1-2, JP25 1-2, JP28 1-2 3-4, JP30 3-4 JP10 1-2 2-4, JP19 1-2, JP25 1-2, JP28 2-3, JP30 3-4 JP10 1-2 2-4, JP17 1-2, JP19 3-4, JP20 2-3 4-5, JP21 1-2, JP25 2-3, JP28 2-3 JP10 1-2 2-4, JP17 1-2, JP19 3-4, JP20 2-3 4-5, JP21 1-2, JP25 2-3, JP28 1-2 3-4, JP30 3-4 JP10 1-2 2-4, JP17 1-2, JP19 3-4, JP20 2-3 4-5, JP21 1-2, JP 22 In, JP23 In, JP25 2-3, JP28 1-2 3-4, JP30 3-4, JP31 In, JP32 In JP10 1-2 2-4, JP17 1-2, JP19 3-4 5-6, JP20 2-3 4-5, JP21 1-2, JP25 2-3, JP27 2-3, JP30 2-3 JP10 1-2 2-4, JP17 1-2, JP19 3-4, JP20 2-3 4-5, JP21 1-2, JP25 2-3 JP10 1-2 2-4, JP17 1-2, JP19 3-4, JP20 2-3 4-5, JP21 1-2, JP25 2-3 JP10 1-2 2-4, JP17 1-2, JP19 3-4, JP20 2-3 4-5, JP21 1-2, JP22 In, JP23 In, JP24 2-3, JP25 2-3, JP28 1-2 3-4, JP30 3-4, JP31 In, JP32 In JP10 1-3 4-6, JP17 2-3, JP19 3-4, JP20 1-2 3-4, JP21 1-2, JP25 2-3, JP26 2-3, JP27 1-2, JP28 1-2 3-4, JP29 2-3, JP30 3-4 JP10 1-3 4-6, JP17 2-3, JP19 3-4, JP20 1-2 3-4, JP21 1-2, JP25 2-3, JP26 2-3, JP27 1-2, JP28 2-3, JP29 1-2 Function System clock 25 MHz 33 MHz 40 MHz 50 MHz 12v Flash ROM 5v Cache Size 128K 256K (Double bank) 256K (Single Bank) 512K (Single Bank) 512K (Double Bank) 1 Mb CPU Voltage 5v 3.3v 3.45v 3.6v 4v 486DX/DX2 486SX 486SX-S DX/DX2/DX4-S P24D P24T AM486DX/DX2/DX4 (NV8T, SV8T) Am486DX4 enh (SV8B) Am5x86-P75 (X5-133) Cyrix 5x86 Cyrix Cx486DX/DX2/DX4 Cyrix Cx486S (M6) 404 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper Position JP10 1-3 4-6, JP19 1-2, JP21 2-3, JP25 2-3, JP26 1-2, JP27 2-3, JP28 2-3, JP29 3-4, JP30 1-2 3-4 None 2-3 1-2 2-3 None JP18 JP24 HOT-555A Jumper JP18 Position 1-2 2-3 JP33 None None None None None JP33 3.4,5-6 3-4,5-6 3-4,5-6 3-4,5-6 3-4,5-6 JP33-4 JP39,JP43 JP33-4 JP39,JP43 JP34 In In In In In JP34 Out Out Out Out Out JP39 None 2-4 3-4 1-3 1-2,2-4 JP39 None 2-4 3-4 JP43 1-2 1-2 1-2 1-2 1-2 JP43 1-2 2-4 33 1-2 (open) & 44 (shut) reserved In Out JP45 Function 12v Flash EPROM 5v Flash EPROM Single CPU voltage (VIO=Vcore) 2-8v 2.9v 3.1v 3.3v 3.5v Dual CPU voltage (VIO, Vcore separate) 2-8v (Vcore) 2.9v (Vcore) 3.1v (Vcore) 3.3v (VIO) 3.4v (VIO) Normal CMOS Clear CMOS HOT 569 Same as Acusharp Excalibur TX 1569 HOT-661V Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Video Jumper J17 JP19 JP37 JP38 Description ATX Pentium II 333 Via Apollo Award 4.51PG 4 PCI/3 ISA Position 1-2 2-3 1-2,3-4,5-6,7-8 1-2,3-4,5-6 1-2,5-6,7-8 1-2,5-6 3-4,5-6,7-8 3-4,5-6 5-6,7-8 JP38 JP44 1-2,4-5 2-3 Notes NCR SCSI 4 banks SDRAM AGP Function 12v Flash EPROM 5v Flash EPROM Clear CMOS 2x CPU Clock Ratio 2.5x CPU Clock Ratio 3x CPU Clock Ratio 3.5x CPU Clock Ratio 4x CPU Clock Ratio 4.5x CPU Clock Ratio 5x CPU Clock Ratio Keyboard/PS2 mouse power-on Disabled Function UMC 486S U5 3:1 Core-Bus ratio 2:1 (4:1 X5-133) P24D WT cache P24D WB cache Other CPU S Jumper JP39 Position 2-3,5-6 2-3,4-5 1-2,5-6 1-2,3-4,5-6 5-6 3-4,5-6 1-2,5-6 None 1-2,3-4 1-2 1-2 2-3 JP45 Function Enabled Mouse only Keyboard only 50 MHz CPU Host Clock 66 MHz CPU Host Clock 75 MHz CPU Host Clock 83 MHz CPU Host Clock 100 MHz CPU Host Clock 103 MHz CPU Host Clock Overspeeds 66-100 MHz bus speed (disregards CPU) Silicon Star Intl See Abit. SMT Award BIOS ID The last two numbers of the BIOS part number. Code 9C-00 BC Motherboard TX3 5TA Code CC Motherboard 5TA Soltek Now EpoX. www.soltek.com.tw Award BIOS ID The last two numbers of the BIOS part number. Code 9C 9C AC-01 Motherboard 82440FX (Ppro) SL 54P5 SL-54T5 Code CC EC FC SL54P2/P5 Jumper SW1 S1-2,5 S3-4 S5 S6 Position S1 Off On On Off Off On On Off Off S3 On Off On On Off S2 Off Off On On Off Off On On Off S4 Off Off Function Clock Multiplier 1.5x 2x 2.5x 3x 3.5x 4x 4.5x 5x 5.5x Host bus speed 60 MHz 66 MHz AMD K6 CPU AT Power Supply ATX Motherboard SL 54P5/U5 SL 56D5/D! SL 66B 405 406 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper JP7 JP14 JP15 J1 J2 Position 1-2 2-3 Open 1-2 3-4 1-2,3-4 5-6 1-2,5-6 3-4,5-6 1-2,3-4,5-6 7-8 1-2,7-8 3-4,7-8 1-2,3-4,7-8 5-6,7-8 1-2,5-6,7-8 3-4,5-6,7-8 1-2,3-4,5-6,7-8 1-2 2-3 1-4 6-10 12-13 14-15 1-4 5-6 8-10 11-12 14-15 Function Clear CMOS Normal 2v CPU 2.1v 2.2v 2.3v 2.4v 2.5v 2.6v 2.7v 2.8v 2.9v 3v 3.1v 3.2v 3.3v 3.4v 3.5v Non-Intel Flash or normal Intel Flash HD IR Power Sleep Speaker Reset Power LED Keylock Turbo LED SL 65MV Item Form Factor CPU Speeds Chipset BIOS Bus Memory (Mb) I/O Video Audio Comments Description ATX Pentium III/Celeron 1000/700 VIA ProSavage PM133 Award 5 PCI/1 ISA/1 AMR 1.5 Gb 2 EIDE, floppy, USB, IR S3 Savage 4 WM9701A Notes Socket 370 FSB 200 UDMA/66 3 DIMM sockets AGP 4x Sowah Research www.sowah.com Spear Motherboard? Award BIOS ID The last two numbers of the BIOS part number. Code FC-00 Motherboard SR-M504 SR-M504 Spear Motherboard SM-M504? Code Motherboard S Soyo www.soyo.co.uk www.soyo.com.tw www.soyo.nl Award BIOS ID The last two numbers of the BIOS part number. Code 1 1-00 1-00 2-00 3 9 9C 9C-00 Motherboard 25M/N/P/Q/R/R2 30 A/B/C Serial or 030F2 025N2 4S A2/A5 25J/K/L 4SA W2/W5 5TF0/2/5 5VA2 or 4SA W2/W5 Code AC BC-00 GC-00 HC IC LC PC QC Motherboard 5TF 5BT5 5VD2/D5 5TA2 5VA 5TC2 5TE2/5TCU 5TA2 VL Bus 486 Jumper JP4-6 JP9,10 JP14-16,23 JP21 JP22 JP30 Position JP4 Open Close Open Close JP7 On On Off Off JP14 1-2 1-2 2-3 Close Open Close Open Close* JP5 Open Close Close Open JP8 On On On Off JP15 1-2 1-2 2-3 JP6 Close Close Close Open JP9 2-3 1-2,3-4 1-2 Open JP16 1-2 1-2 2-3 JP10 2-3 1-2 1-2 2-3 JP23 Close Open Open Function CPU clock 25 MHz 33 MHz 40 MHz 50 MHz Cache size 256K (2 banks SRAM) 256K (1 bank SRAM) 128K 64K CPU voltage 3.3v 3.45v 5v VESA clock >33 MHz VESA clock <=33 MHz VESA 1 wait state VESA 0 wait state Output clock speed select CPU (Blue) JP11 JP12 JP13 JP17 JP18 486SX 2-3 2-3 DX/DX2 2-3 1-2,3-4 1-2 DX/SL 1-2 1-2 1-2,3-4 1-2 5-6 P24D 1-2,4-5 1-2,4-5 1-2,3-4 1-2 3-4,5-6 P24T 1-2 1-2 1-2,3-4 2-3 5-6 Cyrix M6 1-2,3-4,5-6* 1-2,3-4,5-6 2-3 2-3,4-5 Cyrix M7 1-2,3-4,5-6* 1-2,3-4,5-6 1-2,3-4 1-2 2-3,4-5 AMD DXL 2-3 2-3 1-2,3-4 1-2,3-4 1-2 UMC 486 2-3 2-3 2-3 3-4 1-2 * is for double clock. For P24C, as for DX-SL plus JP20 Open for 3x, 1-2 for 2.5x, 2-3 for 2x SY-D61BA(2) Item Form Factor CPU Description ATX Dual Pentium II Notes Slot 1 JP19 1-2,3-4 1-2,3-4 1-2,3-4 2-3,4-5 2-3 - 407 408 The PC Engineer’s Reference Book – Vol 2: Motherboards Item Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Video Audio Description Notes 82440BX Award 4 PCI/2 ISA 1024 133 MHz bus speed 2S, 1P, USP, PS/2 AGP UDMA 3. Adaptec 7880 UW SCSI 4 DIMM sockets SY-D61GA Item Form Factor CPU Chipset BIOS Bus Memory (Mb) I/O Video Description ATX Pentium II/Xeon Intel 82440GX Notes 6 PCI 2 Gb 2 EIDE, floppy USB, IR, Intel 82558 LAN AGP 100 4 DIMM sockets Adaptec AIC-7890AB 2x SMP Slot 2 SY-25J/K/L 486 VESA Jumper JP3 JP4 JP5 JP6 JP9,10,13 JP29-31 JP24 JP35-37 Position In Out In Out 1-2 2-3 JP9 2-3 2-3 1-2 1-2 JP29 In Out In Out 1-3,2-4 3-5,4-6 All 1-2 All 2-3 JP10 N/A 1-2 2-3 2-3 JP30 Out In Out In JP13 1-2 2-3 2-3 2-3 JP31 In In Out Out Function Colour Mono 8 MHz (standby) mode Full speed Retain CMOS data Discharge CMOS Green switch. Pin 1 is GRD. Cache size 64K 128K 256K (2 banks SRAM) 256K (1 bank SRAM) CPU external speed (red jumpers) 25 MHz 33 MHz 40 MHz 50 MHz 5v 3.45v Bank 0=30 pin SIMMs Bank 0=72 pin SIMMs CPU (Blue) JP1 JP2 JP11 JP12 JP14 486SX 2-3 1-2 3-4 2-3 2-3 DX/S1/4,ODP 2-3 1-2 3-4 2-3 3-4 Cyrix S/DX (M7) 1-2 2-3 2-3 1-2 1-2,3-4 AMD DX2/80 2-3 1-2 3-4 2-3 1-2,3-4 AMD DX4/100 1-2 3-4 2-3 1-2,3-4 2-3 P24T 2-3 1-2 3-4 2-3 1-2,3-4 P24D 1-2 1-2 1-2,3-4 2-3 1-2,3-4 DX4 (P24C)** 2-3 1-2 3-4 2-3 1-2,3-4 **JP27 and 34 always in except for DX4 (P24C) which has JP34 out. JP15 2-3 2-3 2-3 2-3 1-2 2-3 2-3 JP16 In - JP18 2-3 2-3 2-3 2-3 2-3 2-3 1-2 2-3 JP19 4-5 4-5 2-3 4-5 4-5 1-2 4-5 4-5 JP20 2-3 1-2 2-3 - JP21 1-2 1-2 1-2 1-2 2-3 1-2 JP22 2-3 1-2 1-2 - JP23 2-3 1-2 - S SY-25 Q/R, T Serial 486 VESA Jumper J20 JP4-6 JP9,10 Position 2-3* 3-4 1-4 JP4 Out In Out In JP14 1-2 1-2 1-2 2-3 JP9 2-3 1-2,3-4 CPU (Blue) 486SX DX/DX2 DX/SL,DX4,ODP P24T (OD) DX4 P24D AMD DXL/2 AMD DX2 AMD DX4 Cyrix DX/DX2 UMC U5S JP5 Out In In Out JP15 1-2 1-2 1-2 2-3 JP10 2-3 1-2 JP11 1-2 1-2 1-2 1-2,4-5 2-3 1-2,3-4 2-3 JP6 In In In Out JP16 1-2 1-2 1-2 2-3 JP27 1-2 2-3 5-6 None JP12 2-3 2-3 1-2 1-2 1-2 1-2,4-5 2-3 2-3 2-3 1-2,3-4,5-6 2-3 JP13 2-3 1-2,3-4 1-2,3-4 1-2,3-4 1-2,3-4 1-2,3-4 1-2,3-4 1-2,3-4 1-2,3-4 1-2,3-4 2-3 Function Retain CMOS data Discharge CMOS External battery CPU external speed (red jumpers) 25 MHz 33 MHz 40 MHz 50 MHz CPU voltage 3.45v 3.6v 4v 5v Cache size 256K (2 banks SRAM) 256K (1 bank SRAM) JP17 1-2 1-2 2-3 1-2 1-2 1-2,3-4 1-2 1-2 1-2 3-4 SY-5BT5 Item Form Factor CPU Chipset Bus Memory (Mb) Cache (K) I/O Description Baby AT Pentium 430 TX 4 PCI/3 ISA Notes Socket 7 75 MHz bus speed 2 DIMM sockets, 2 72-pin 512K 2S, 1P, USB, PS/2 UDMA 3 SY-5EAS5 Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Description Baby AT Pentium Eteq 6618 Award 3 PCI/4 ISA 512 1 Mb 2S, 1P, USB, PS/2 Notes Socket 7 66 UDMA 3 JP18 5-6 5-6 5-6 3-4,5-6 1-2 2-3,4-5 1-2 JP19 1-2,3-4 1-2,3-4 1-2,3-4 1-2,3-4 2-3 - JP20 - JP26 In - 409 410 The PC Engineer’s Reference Book – Vol 2: Motherboards SY-5ED5/M Item Form Factor CPU Speeds (MHz) Chipset Bus Memory (Mb) Cache (K) I/O Video Description ATX Pentium 266 Eteq 6628 5 PCI/2 ISA 512K/1 Mb 2S, 1P, USB, PS/2 Notes Socket 7 VIA Apollo VP3 under licence 75 MHz 3 DIMM sockets, 2 72-pin UDMA 3 AGP SY-5EHM Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Video Description Baby AT Pentium Eteq 6638/EQ 82 Award 3 PCI/3 ISA 576 Mb 1 Mb 2S, 1P, USP, PS/2 AGP Notes Super Socket 7 66-100 UDMA 3 SY-5EMA Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Video Problems Comments Description ATX Pentium Notes Eteq 6638 EQ 82C) Award 4.51PG 5 PCI/2 ISA 512 Mb 1 Mb 2S, 1P, USP, PS/2 124 MHz bus speed Super Socket 7 2 DIMM sockets, 2 72-pin UDMA 3 AGP Poor documentation Cheap, but MSI MS5169 is a better buy SY-5EMM Item Form Factor CPU Speeds (MHz) Chipset Bus Memory (Mb) Cache (K) I/O Video Description ATX Pentium Notes Eteq 6638 4 PCI/3 ISA 100 MHz bus speed Super Socket 7 2 DIMM sockets, 2 72-pin 1 Mb 2S, 1P, USP, PS/2 UDMA 3 AGP SY-5SSM Item Form Factor CPU BIOS Description ATX Pentium Award Notes Super Socket 7 S Item Chipset Bus Memory (Mb) Cache (K) I/O Perforrmance Video/Sound Description SiS 530 4 PCI/1 ISA 768 1 Mb 2S, 1P, USP, PS/2 Notes 66-83 UDMA 3 Good – just behind Tyan S1590 AGP/ESS 1938S 3D on board (no slots) SY-5STM Item Form Factor CPU BIOS Chipset Bus Memory (Mb) Cache (K) I/O Description ATX Pentium Award SiS 5598 2 PCI/2 ISA 256 1 Mb 2S, 1P, USP, PS/2 Notes Super Socket 7 66-83 UDMA 3 SY-5T F0/F2/F5 Serial Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Comments Jumper JP3 JP4 JP5 JP6 JP10,11 JP13,14 JP20 JP22 JP24 JP40 JP30,31 Description AT Pentium MMX 75-200 Notes Cyrix 6x86, AMD 5x86. Socket 7. Award PnP Flash 4 PCI/4 ISA 4-512 512 2S, 1P, Floppy, 2 EIDE, PS/2 NCR 810 SCSI supported EDO 256 standard. PB. COAST upgrade. Defaults setup for Pentium 100 Position In* Out 1-2 In Out* 2-3 JP10 In Out In Out JP13 Out* In In Out Out* In 2-3 2-3 In JP30 JP11 In Out Out In JP14 Out* Out In In JP31 Function EGA/VGA Mono Reserved Clear CMOS data Retain CMOS data Reserved Host bus Speed 25 MHz 27.5 MHz 30 MHz 33 MHz Core/Bus Ratio 3/2 (1.5) 2/1 (2) 5/2 (2.5) 3/1 (.33) 256K PB cache 512K PB cache (COAST upgrade) Reserved Reserved Reserved CPU voltage 411 412 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper JPS2 Position In* Out In Out* Out* In Function Standard and VR (3.3v + 5%) VRE (3.45-3.6v) Enable PS/2 mouse (IRQ12 available to system) Disable PS/2 mouse (IRQ12 available to system) SY-5XA5 Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Description ATX Pentium Notes 430 TX 75 MHz bus speed Socket 7 5 PCI/3 ISA 3 DIMM sockets, 2 72-pin 512K 2S, 1P, USP, PS/2 UDMA 3 SY-6BA+(III/IV) Item Form Factor CPU Chipset BIOS Bus Memory (Mb) I/O Video Performance Description ATX Pentium III/Celeron 440BX Award 5 PCI/2 ISA 1 Gb 2S, 1P, USP, PS/2 AGP Notes Slot 1 66-133 4 DIMM sockets PC100 UDMA/33 Good – near Super Micro P6SBA SY-6BB Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Description AT Pentium II Notes 440BX 133 MHz bus speed Slot 1 3 PCI/3 ISA 3 DIMM sockets 2S, 1P, USP, PS/2 UDMA 3 Description ATX Pentium II Notes SY-6BE(+) Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Video 82440BX Award 4 PCI/3 ISA 768 2S, 1P, USP, PS/2 AGP Slot 1 66-133 3 DIMM sockets UDMA 3 S SY-6IBM Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Video Description ATX Pentium II Notes Slot 1 82440BX Award 3 PCI/1 ISA 768 66-133 3 DIMM sockets 2S, 1P, USP, PS/2 UDMA 3 SY-6IZA Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) I/O Video Description ATX Celeron Intel 82440ZX Award 3 PCI 256 Mb The usual AGP Notes Socket 370 66-133 SY-6KB Item Form Factor CPU Speeds (MHz) Bus Memory (Mb) Video Performance Comments Description ATX Pentium II 233-333 4 PCI/3 ISA 512 Notes Slot 1 SDRAM/EDO. 4 DIMM sockets AGP Poor Poor documentation SY-6KD Item Form Factor CPU Speeds (MHz) Chipset Bus Memory (Mb) I/O Video Description ATX Dual Pentium II Notes 440 LX 4 PCI/2 ISA 66/75 2S, 1P, USP, PS/2 Slot 1 4 DIMM sockets UDMA 3 AGP SY-6KE Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Description ATX Pentium II 440LX Award 4 PCI/3 ISA Notes Slot 1 66-100 413 414 The PC Engineer’s Reference Book – Vol 2: Motherboards Item Memory (Mb) I/O Video Description 768 2S, 1P, USP, PS/2 AGP Notes 3 DIMM sockets UDMA 3 Description AT Pentium II 440LX 3 PCI/3 ISA Notes SY-6KL Item Form Factor CPU Chipset Bus Memory (Mb) I/O Video 2S, 1P, USP, PS/2 Slot 1 83 MHz bus speed 3 DIMM sockets, 2 72-pin UDMA 3 AGP SY-6VZA Item Form Factor CPU Chipset BIOS Bus Memory (Mb) I/O Video Description ATX Notes Socket 370 Apollo Pro Award 3 PCI 512 2S, 1P, USP, PS/2 AGP 66-133 2 DIMM sockets UDMA 3 SY-71WA-F Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Description ATX Celeron 500 Intel 810 Award 5 PCI 512 Notes 2S, 1P, USP, PS/2, joystick, audio UDMA 3 Socket 370 Possibly 1 ISA depends on model 3 DIMM sockets PC 100 SY 7VCA Item Form Factor CPU Speeds Chipset BIOS Bus Memory (Mb) I/O Video Audio Comments Description ATX Pentium III/Celeron 866/533 VIA Apollo Pro 133A Award 5 PCI/1 ISA/1 AMR 1.5 Gb 2 EIDE, floppy, USB, IR Notes Socket 370 FSB 155 UDMA/66 3 DIMM sockets AGP 4x Sigmatel STAC9721T SY-V6BE+ Item Form Factor CPU Speeds (MHz) Description ATX Pentium II Notes Slot 1 S Item Chipset BIOS Bus Memory (Mb) Cache (K) I/O Video Description Apollo Pro Award 4 PCI/3 ISA 768 Notes 2S, 1P, USP, PS/2 AGP UDMA 3 66-133 3 DIMM sockets Spacewalker See Shuttle Spear Motherboard Sowah Research? Award BIOS ID The last two numbers of the BIOS part number. Code CC-00 Motherboard SM-M504 Code Motherboard SM-M504 Sowah Research SR-M504? Spica Award BIOS ID The last two numbers of the BIOS part number. Code 9C Motherboard P5TX-AT Code AC Motherboard SC 9700 Spring Circle Award BIOS ID The last two numbers of the BIOS part number. Code 9C 9C-00 AC Motherboard SP566 P5C01 ST586/SP564 Code AC-00 BC BC Motherboard P561-U03 ST586/P561-4 P571-3 Sukjung Award BIOS ID The last two numbers of the BIOS part number. Code 9C Motherboard SJ-PTM HX Code Motherboard 415 416 The PC Engineer’s Reference Book – Vol 2: Motherboards SuperMicro www.supermicro.com 370SBA Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Video Comments Description ATX Celeron Notes Socket 370 66-100 Intel 440BX AMI 4 PCI 1 ISA 768 Mb AGP 370SLM Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Video Comments Description Micro ATX Celeron Notes Socket 370 66 Intel 440LX AMI 3 PCI 768 Mb AGP 370SSA Item Form Factor CPU Speeds Chipset BIOS Bus Memory (Mb) I/O Video Audio Comments Description ATX Pentium III/Celeron 1000/733 Intel 815E AMI 6 PCI/1 AMR 512 Mb 2 EIDE, floppy, USB, IR Intel 815 GMCH Crystal 4299 370SVM Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Video Description Micro ATX Celeron Notes Socket 370 66-100 Via Apollo + Award 3 PCI 768 Mb AGP 370SWM Item Form Factor Description Micro ATX Notes Notes Socket 370 FSB 133 UDMA/100 3 DIMM sockets AGP Pro 4x S Item CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Video Description Celeron 417 Notes Socket 370 66-133 Intel 810 AMI 2 PCI 768 Mb AGP PIIISCA(E) Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Video Comments Description ATX Pentium III Notes Slot 1 133 FSB Intel 820 AMI 5 PCI 1 AMR 1 each shared. UDMA/66 2 RIMM/2 DIMM sockets E has 3 RIMM sockets AGP 4x Better try a Via Apollo Pro Plus board, or Slot A PIIISEA Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Video Comments Description ATX Pentium III Notes Slot 1 133 FSB Intel 810E AMI 4 PCI/3 ISA 1 AMR 1 each shared. UDMA/66 2 DIMM sockets Mediocre Via Apollo or 820 is better for performance P5MMA98 Item Bus Memory (Mb) Problems Description 4 PCI/4 ISA Notes 1 each shared 4 72-pin slots Linux can lock up during boot due to keyboard timeout. Recommended Flash ROM update can kill BIOS and board (possibly upgraded now). P55 Item Speeds (MHz) Chipset Bus Memory (Mb) Cache (K) I/O Comments Description 75-180 Triton 3 PCI/4 ISA 128 512 EIDE Mode 4 Notes 1 each shared. PCI busmastering. Use triton.exe. FPM/EDO. 4 SIMM sockets. CWA has asynchronous, CWS has pipelined burst synchronous. Cheap P6DBE Item Form Factor CPU Speeds (MHz) Description ATX Dual Pentium II 233-450 Notes Slot 1 418 The PC Engineer’s Reference Book – Vol 2: Motherboards Item Chipset BIOS Bus Memory (Mb) Cache (K) I/O Video Description 440BX AMI 2 Mb 5 PCI/2 ISA 1 Gb registered SDRAM Notes 4 DIMM sockets 2 EIDE, floppy, USB AGP P6DBS Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Video Description ATX Dual Pentium II 233-450 440BX AMI 2 Mb 4 PCI/3 ISA 1 Gb registered SDRAM Notes 2 EIDE, floppy, USB AIC 7895 Dual UW+50 pin. RAIDport II AGP Slot 1 4 DIMM sockets P6DGU Item Form Factor CPU Cache Chipset BIOS Bus Memory (Mb) I/O Video Description ATX Pentium II/Xeon Notes SMP Slot 2 Intel 440GX 5 PCI/2 ISA 2 Gb 2 EIDE, floppy USB, IR 4 DIMM sockets Adaptec AIC-7890AB AGP 2x P6DLS Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Performance Description ATX 2 Pentium II 450 440LX AMI 4 PCI/3 ISA 512 SDRAM 1 Gb EDO Notes Slot 1 4 DIMM sockets UDMA EIDE, floppy, AIC 7880P SCSI P6DGH Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Description AT Dual Pentium II 233-450 440GX AMI 2 Mb 9 PCI/2 ISA 2 Gb Notes 4 DIMM sockets Ultra and Ultrawide ports Solid S Item Cache (K) I/O Video Description Notes 2 EIDE, floppy, USB AIC 7896 Dual Ultra 2. RAIDport III. UDMA AGP Description ATX Dual Pentium II 233-450 440GX AMI 2 Mb 5 PCI/2 ISA 2 Gb 2 EIDE, floppy, USB Notes P6DGU Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) I/O Video Slot 1 4 DIMM sockets AIC 7890 U2W+UW+50 pin. RAIDport III AGP P6SBA Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) I/O Video Performance Comments Description ATX Pentium II 233-450 440BX AMI WinBIOS 2.5 4 PCI/3 ISA 768 Mb registered SDRAM 2S, 1P, EIDE, floppy, 2 USB, 2 PS/2 Notes Slot 1 UDMA/33 3 DIMM sockets AGP Excellent (actually “stunning…” PC Pro) Good price P6SBU Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Video Performance Description ATX Pentium III/Celeron 600/400 440BX AMI 2 Mb 4 PCI/3 ISA 1 Gb registered SDRAM Notes Slot 1 4 DIMM sockets 2S, 1P, EIDE, floppy, 2 USB, 2 PS/2 AIC 7890 U2W+UW+50 pin. RAIDport III AGP Competent Description ATX Pentium III/Celeron 600/400 440BX AMI 2 Mb 4 PCI/3 ISA 1 Gb registered SDRAM 2S, 1P, EIDE, floppy, 2 USB, 2 PS/2 Notes P6SBS Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) I/O Slot 1 4 DIMM sockets 419 420 The PC Engineer’s Reference Book – Vol 2: Motherboards P6SLA Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) I/O Video Performance Description ATX Pentium II 233-333 440LX AMI 2 Mb 4 PCI/3 ISA 768 EDO or 384 SDRAM 2S, 1P, EIDE, floppy, 2 USB, 2 PS/2 Notes Slot 1 3 DIMM sockets AGP Reasonable. 75 MHz bus speed, 6 x multiplier. P6SWA Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) I/O Description ATX Pentium II Notes Slot 1 Intel 810E AMI 2 Mb 4 PCI/3 ISA 512 Mb 2S, 1P, EIDE, floppy, 2 USB, 2 PS/2 UDMA/66 2 DIMM sockets P6SWD Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) I/O Description ATX Pentium II Notes Slot 1 Intel 810DC-100 AMI 2 Mb 4 PCI/3 ISA 512 Mb 2S, 1P, EIDE, floppy, 2 USB, 2 PS/2 UDMA/66 2 DIMM sockets S2DGR Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) I/O Video Description ATX Dual Pentium II/Xeon 400-500 440GX AMI 2 Mb 4 PCI/2 ISA 2 Gb 2 EIDE, floppy, USB Notes Description ATX Dual Pentium II/Xeon 400-500 440GX AMI 2 Mb 5 PCI/2 ISA 2 Gb Notes 4 DIMM sockets AIC 7895 Dual UW+50 pin. RAIDport II. UDMA AGP S2DGU Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) 4 DIMM sockets S Item I/O Video Description 2 EIDE, floppy, USB Notes AIC 7890 U2W+UW+50 pin. RAIDport III. UDMA AGP S2DG2 Item Form Factor CPU Chipset BIOS Bus Memory (Mb) I/O Video Performance Description ATX Pentium II/Xeon Intel 440GX Notes SMP Slot 2 5 PCI/2 ISA 2 Gb 2 EIDE, floppy USB, IR 4 DIMM sockets Adaptec AIC-7896N LVD AGP 2x S370SED(A) Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) I/O Description Micro-ATX Celeron Notes Socket 370 Intel 810E 3 PCI (6 for SEA) 512 Mb 2 EIDE, floppy UDMA/66 2 DIMM sockets S370SWD Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) I/O Description Micro-ATX Celeron Notes Socket 370 Intel 810DC-100 3 PCI 512 Mb 2 EIDE, floppy UDMA/66 2 DIMM sockets S370SW(M)(T) Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) I/O Video Comments Description Micro-ATX Celeron Notes Socket 370 Intel 810L 3 PCI, AMR 512 Mb 2 EIDE, floppy, USB, ser, par, joystick, audio SuperPower www.superpower.com.tw UDMA/66 2 DIMM sockets Embedded AGP Better boards for power 421 422 The PC Engineer’s Reference Book – Vol 2: Motherboards 6XV-133 Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Video Comments Description AT Pentium II Notes Slot 1 Via Apollo Pro Plus 5 PCI/2 ISA 768 Mb UDMA/66 3 DIMM sockets 2S, 1P, EIDE, floppy, 2 USB, 2 PS/2 AGP Excellent Value 6XW Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Video Comments Description ATX Pentium II Notes Slot 1 Intel 810E 5 PCI 512 Mb 2 DIMM sockets 2S, 1P, EIDE, floppy, 2 USB, 2 PS/2 AMR Excellent Value P2BXA-E Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Video Comments Description ATX Pentium II Notes Slot 1 8x clock multiplier Intel 440BX 5 PCI/2 ISA 768 Mb UDMA/33 3 DIMM sockets 2S, 1P, EIDE, floppy, 2 USB, 2 PS/2 AGP SP-586TB Item Form Factor CPU Bus Memory (Mb) Cache (K) I/O Jumper J1,2 JP1 Description AT Pentium 4 PCI/3 ISA Notes Socket 7 4 72-pin, 2 DIMM sockets 2S, 1P, EIDE, floppy, 2 USB, 2 PS/2 Position 1-2 2-3 None 1-2 Function 5v DIMMs 12v 3.5/1.5x CPU 2x S Jumper JP2-4 JP10 JP16 Position 1-2,3-4 3-4 5-6 JP2 JP3 1-2 1-2 2-3 2-3 2-3 2-3 2-3 1-2 2-3 1-2 5-6 1-2 1-2,7-8 1-2,3-4 1-2,3-4,5-6 1-2,3-4,5-6,7-8 JP4 1-2 1-2 2-3 2-3 Function 2.5x 3x 4x Bus speed 50 MHz 60 MHz 66 MHz 73 MHz 5v Flash ROM 12v 2.1v Ext CPU 2.8v 2.9v 3.2v 3.3v 3.5v SP-A586B Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) I/O Video Performance Jumper JB1 JC1-3 JV1 Description AT Pentium Notes Super Socket 7 Ali-V M1542/1543 Award Green 3 PCI/2 ISA 768 2S, 1P, EIDE, floppy, 2 USB, 2 PS/2 Position None 1-2 1-2,3-4 3-4 1-2,5-6 1-2,3-4,5-6 3-4,506 5-6 JC1 In Out In Out In Out None 1-2 3-4 1-2,3-4 5-6 1-2,5-6 3-4,5-6 1-2,3-4,5-6 7-8 1-2,7-8 3 DIMM sockets AGP Reasonable JC2 In In In In Out Out JC3 In In Out Out Out Out Function 1.5/3.5x CPU 2x 2.5x 3x 4x 4.5x 5x 5.5x Bus speed 60 MHz 66 MHz 75 MHz 83 MHz 95 MHz 100 MHz 2v CPU Core 2.1v 2.2v 2.3v 2.4v 2.5v 2.6v 2.7v 2.8v 2.9v 423 424 Jumper JV2 JR1 JBT1 The PC Engineer’s Reference Book – Vol 2: Motherboards Position 3-4,7-8 1-2,3-4,7-8 5-6,7-8 3-4,5-6,7-8 1-2,3-4,5-6,7-8 In Out 1-2 2-3 1-2 2-3 Function 3v 3.1v 3.2v 3.3v 3.4v 3.3v 3.45v 5v Flash ROM 12v Flash ROM Normal Clear CMOS SP-P2BXA Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Video Performance Description ATX Pentium II Notes Slot 1 440BX Award 4.51PG 4 PCI/3 ISA 768 3 DIMM sockets 2S, 1P, EIDE, floppy, 2 USB, 2 PS/2 AGP Below average Sye Award BIOS ID The last two numbers of the BIOS part number. Code 9C-00 Motherboard 5700 Code Motherboard T Taemung/Fentech Award BIOS ID The last two numbers of the BIOS part number. Code 9C Motherboard KBT5A-1 or KBT5A-2 Code Motherboard Taiwan Mycomp Corp See TMC Taken Corp www.taken.com.tw Award BIOS ID The last two numbers of the BIOS part number. Code 2C 9C Motherboard PCI 400 PCI 590-2 Code AC BC Motherboard PCI 590 PCI 597 Tandon MCS Jumper J6A J6B,C Position In Out J6B Out On Off J6C Out Off On Function Security disabled Security enabled Base Memory 640K 512K 256K 426 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper J10A,B Y5 Position J10A Off Off On On Off Off J10B Off Off Off Off On On Y5 Empty Empty 40 MHz 40 MHz 50 MHz 50 MHz Function RAM 256K 512K 256K 512K 256K 512K MCS Pro Jumper JP1A,B J1C JP2 Position JP1A Out Out In In Out In Out Function Base Memory 640K 512K 256K Security disabled Security enabled Onboard floppy enabled/disabled automatically Disabled permanently JP1B Out In Out PAC 286/8/10 (Type A) Switch 1 2 3 4 E1 Position Off On Off On Off On Off 1-2 2-3 Function Reserved Disable 512-640K RAM Enable Disable Data Pac 1 ejection Enable Disable setup access Enable Onboard diskette is secondary controller Primary controller PAC 286/8/10 (Type B) Switch 1 2 3 4 5-8 E1 Position Off On Off On On Off 1-2 2-3 Function Reserved Disable 512-640K RAM Enable Disable Data Pac 1 ejection Disable setup access Enable Reserved Onboard diskette is secondary controller Primary controller PAC 286/12 Switch 1,2 3 4 E1 E2 Position S1 Off Off On On On Off Off Out 1-2 S2 Off On Off On Function Base Extended 640K 384K 512K 512K 256K 384K 256K 512K Disable security features Enable Reserved Reserved 8 MHz 80287 T Switch Position 3-4 5-6 Function Reserved 10/12 MHz 80287 PAC 386sx Switch 1 2 3 4 5-8 E1 E5 E6 E7 E8 Position Off On Off Off On Off Off 1-2 2-3 Out In In Out Out Out Out Out Function Reserved Disable security features Enable Reserved Disable 512-640K RAM Enable Reserved 32K BIOS Chip 64K BIOS Chip Reserved 1 Mb (J20-23 256K) 2 Mb (J20-27 256K) 2 Mb (J20-21 1 Mb) 4 Mb (J20-23 1 Mb) 8 Mb (J20-27 1 Mb) Reserved Reserved PAC II Jumper J19 J22C J22D J24 J35A,B J35C J36 J37 J38 J39 J41 S1-2 J41 S3-5 Position In Out In Out In Out In Out J35A Out Out In In Out 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 Off S3 On Off On Off On Off J35B Out In Out S4 On On Off Off On On S5 On On On On Off Off Function Clear CMOS Normal Onboard video is PS/2 VGA mode Onboard video is AT VGA mode Onboard video uses PS/2 VGA timing Onboard video uses standard timing Term power to SCSI bus Term power from SCSI bus Base Memory 640K 512K 256K Security disabled Security enabled 16K BIOS size 32K BIOS size Enable onboard SCSI Disable DataPacII/0 normal ejection Emergency eject DataPacII/1 normal ejection Emergency eject Reserved RME ID 0 1 2 3 4 5 427 428 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper J41 S6 J41 S7 J45 J48 Position On Off In Out In Out Off Off Off Off 1-2 2-3 Function 6 7 DataPacII/0 normal ejection Locked DataPacII/1 normal ejection Locked RTC test point BIOS is standard EPROM BIOS is Flash EPROM PCA 6/8 Switch S1-2 S3 S4-7 S8 Position Off On Off Off On Off Function Reserved Colour adapter Mono Reserved 256K chips in Bank 1 (1 Mb) 64K chips in Bank1 (640K) PCA 12 (Type A) Switch J6 1,2 3 4 E1 E2 Position S1 Off Off On On On Off Off Out 1-2 5-6 S2 Off On Off On Function Reset/LED Base Extended 640K 384K 512K 512K 256K 384K 256K 512K Disable security features Enable Reserved Reserved 8 MHz 80287 10/12 MHz 80287 PCA 12 (Type B) Switch J9 J10 J12 1,2 3 4 E1 E2 E3 Position S1 Off Off On On On Off Off 1-2 1-2 2-3 1-2 S2 Off On Off On Function Speaker Reset/LED IDE LED Base Extended 640K 384K 512K 512K 256K 384K 256K 512K Disable security features Enable Reserved Reserved 8 MHz 80287 10/12 MHz 80287 BIOS chip size 286N (Type A) Jumper W2 Position 1-2 Function Reserved T Jumper W3 W4 W5 W9 W11 W12 W15 W16 W17 Position 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 In Out In Out Function Enable security features Disable Disable onboard floppy Enable Disable diskette reduced write current Enable 12 MHz 802C87 6 MHz 80287 Disable onboard VGA Enable Disable IDE LED Enable Enable IRQ9 Disable Disable IRQ12 Enable Disable 512-640K Enable 286N (Type B) Jumper J2 J3 J4 J5 J6 J7 J8 J9 Position In Out In Out 1-2 2-3 In Out J14 J15 J16 Function Reserved Reserved Enable onboard VGA Disable Reserved Lock keyboard Normal Reset Enable security features Disable Disable 512-640K Enable Power LED HD LED Internal reset 386N (Type A) Jumper JP2 JP3 JP5 JP6 JP7 JP8 JP9 JP10 JP11 Position In Out In In Out 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 In Out Function Disable 512-640K Enable Disable security features Disable IRQ12 Enable Disable onboard floppy Enable Disable onboard IDE Enable Disable diskette reduced write current Enable 64K BIOS 32K BIOS Disable IDE LED Enable Keyswitch/IDE 429 430 The PC Engineer’s Reference Book – Vol 2: Motherboards 386N (Type B) As for 286N (Type B), except J2,3,5 Out. 386N (Type C) Jumper JP1 JP4A Position In Out In Out Out In JP4B JP5A JP5B JP10 JP12-14 JP12 1-2 1-2 2-3 1-2 2-3 2-3 2-3 JP13 1-2 1-2 2-3 1-2 2-3 2-3 2-3 JP14 1-2 1-2 2-3 1-2 2-3 2-3 2-3 JP18 JP19 Function Speaker Enable 256-640K Disable Disable security features Enable Reserved Enable LPT bidirectional mode Battery Mem Fixed Bank 0 512K 512 1 Mb 512 1.5 Mb 512 256 2.5 Mb 512 4 Mb 1 Mb 10 Mb 1 Mb 16 Mb 4 Mb HD LED Power LED Bank 1 256 256 1 Mb 1 Mb 4 Mb 4 Mb 386-16/20 Switch 1-4 5 6 7 8 Position 1 On Off On Off On Off On Off On Off On Off On Off On Off Off Off On Off On Off On 2 On On Off Off On On Off Off On On Off Off Off Off On On 3 On On On On Off Off Off Off Off On On On Off Off Off Off 386-25/33 Jumper W7,8 Position W7 1-2 2-3* W8 In Out* Function 80387 clock Asynchronous Synchronous 4 On On On On On On On On Off Off Off Off Off Off Off Off Function Bank1 Bank2 256x9 256x9 256x9 256x9 256x9 256x9 256x9 256x9 256x9 256x9 256x9 256x9 1Mbx9 1Mbx9 1Mbx9 1Mbx9 1Mbx9 256x9 1Mbx9 256x9 1Mbx9 1Mbx9 1Mbx9 1Mbx9 EGA BIOS Disabled 80387 80287 Boot high speed Normal speed Mono display Colour Total RAM 1 Mb 1 Mb 1 Mb 1 Mb 2 Mb 2 Mb 2 Mb 2 Mb 4 Mb 4 Mb 4 Mb 4 Mb 5 Mb 5 Mb 8 Mb 8 Mb Interleave 0 2 2 0 2 0 2 T Jumper W12,13 Position W12 In Out* W13 1-2 2-3* W22,23 Switch 1 2 3 4 5 6 7 8 Position Off Off On Off Off Off Off On Off Off On Function Cache mode Direct mapped 2-way associative Reserved Function Reserved 809387 not installed Installed Reserved Reserved Reserved Enable security features Disable Reserved 8.25 MHz bus speed 11 MHz bus speed 386/33 (Type E) Jumper JP1 JP2 JP3 JP4 JP5 Position 1-2 2-3 1-2 2-3 Out 1-2 2-3 1-2 2-3 J3 J4 J8 J9 J10 J11 Function Enable security Disable LPT1 uses IRQ7 LPT2 uses IRQ5 Reserved Disable I/O peripherals Enable 128K cache 32/64K cache COM1 COM2 Speaker Speed LED Reset IDE Sonia II PCX BIOS supports up to 4 floppies, but onboard controller only supports 2. Switch S1 S2 S3,4,JP1 S5,6 Position On Off On Off S3 On Off Off On Off Off S5 Off Off S4 Off On Off Off On Off S6 Off On JP1 2-3 2-3 2-3* 1-2 1-2 1-2 Function Disable boot on drive A Enable Maths copro installed Not installed Total RAM 128K 192K 256K 128K 384K 640K Display Mono Colour 40x25 431 432 Switch S7,8 P2 The PC Engineer’s Reference Book – Vol 2: Motherboards Position On On S7 Off Off On On 1-2 Function Colour 80x25 None Floppies installed 1 2 3 4 Disable LPT1 Off On S8 Off On Off Off Sonia III PCX Jumper JP1 JP3,4 JP5 Position In Out JP3 B B A A A B JP4 B A B A Function 64K chips in Bank 1 (256K) 256K chips in Bank 1 (640K) Display Type Mono 80 column Colour 40 column Colour 80 column None Enable LPT1 Disable SL (Type A) Jumper JP1 JP3 JP4 JP5 Position Out In Out In Function 16K ROM BIOS 32K ROM BIOS Reserved Reserved Enable onboard floppy Disable Position Off On Off On Function Enable security Disable security SIMMs not installed SIMMs installed SW1 Jumper 1 2 SW2 Switch 1 2 3 4 Position Off On Off Off On Off On Function Disable COM1 Enable Disable COM2 Disable LPT1 Enable DRAM 1 wait state DRAM 0 wait state SL (Type B) Jumper E1 E2 E3 E4 E5,6 Position 2-3 1-2 2-3 2-3 2-3 1-2 2-3 Out Function Reserved IDE IRQ14 enabled Disabled Reserved Reserved IDE secondary address IDE primary address Disable IDE (also E2 to 2-3) T Jumper E7 E8 Position 2-3 1-2 2-3 Function Reserved RAM parity checking enabled Disabled SW1 Reset switch SW2 Switch 1,2 3 Position 1 Off Off On Off On 2 Off On On Function Memory 640K 512K 256K Enable security Disable SL (Type C) Jumper E1 E2 E3 E4 E5 E6,7 E8 E9 E10 E11 Position 2-3 1-2 Out 2-3 2-3 1-2 2-3 1-2 2-3 Out 1-2 5-6 2-3 1-2 2-3 2-3 Function Reserved IDE IRQ14 enabled Disabled Reserved Reserved 80287 clock divided by 3 80287 clock used directly IDE secondary address IDE primary address Disable IDE (also E2 to Out) 8 MHz clock to 80287 10/12 MHz clock to 80287 Reserved RAM parity checking enabled Disabled Reserved SW1 Reset switch SW2 Switch 1,2 3 Position 1 Off Off On Off 2 Off On On Function Memory 640K 512K 256K Enable security Tower 386 Switch S1 S2 S3 S4 S5 Position Off Off On Off On Off Off Function Reserved Coprocessor not installed Coprocessor installed I/O bus speed 8.25 MHz I/O bus speed 11 MHz Reserved Reserved 433 434 The PC Engineer’s Reference Book – Vol 2: Motherboards Switch S6 S7 S8 Jumper W9 W10 W14,15 W30 W98 Position Off On On Off Position Off On Off On W14 On Off Function Security enabled Disabled Normal operation Reserved W15 1-2 2-3 1-2 2-3 Function Non-cacheable region D00000-DFFFF Non-cacheable region E00000-FFFFFF Base memory 640K Base memory 512K (BIOS >3.7 only) Cache Mode Direct mapped 2-way set associative Reserved 256K SIMMs 1 Mb SIMMs Tower 486 Switch S1,2 S3 Position S1 Off Off On Off On S4 J7 J8 J9 J10 S2 Off On On Function Memory 640K 512K 256K Security enabled Disabled Reserved IDE LED Battery Speaker Reset & LEDs Tatung www.tatungusa.com TCS 4000 Jumper J1 J2 J3 J4 J5 J6 J7 J8 J9 J12 J13 J18 J19 Position In 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 Function For readjusting WDC 10 MHz VCO frequency after repairs. This is removed when adjusting C38 and replaced afterwards. Onboard WDC select disabled Enabled Onboard FDC select disabled Enabled HDD data cable HDD control cable External battery System clock mode DMA clock mode Floppy cable Keyboard Reset/keylock HDD LED, Power LED, speaker EPROM select mode ROM select mode 27128 ROM 27256 ROM T Jumper J20 J21 Position 1-2 2-3 Function Special EGA card on main board 80287 at 10 MHz 80287 at 4.77 MHz SW1 Switch S1-4 Position S1 On On On On Off Off S2 On Off On On Off Off Position On Off On Off On Off On Off On Off On Off Function Colour display Mono 640K onboard memory 512K or 1 Mb onboard memory Enable COM1 Disable Enable COM2 Disable Enable LPT1 Disable System clock speed 6(8) MHz 10 MHz S3 S4 On Off On Off On Off On Off S5-8 Function Drive A 1.2 Mb 360K 1.2 Mb 1.2 Mb 360K 360K Reserved Drive B 1.2 Mb 360K 1.2 Mb 360K SW2 Switch 1 2 3 4 5 6 TCS 7000 Jumper J1 J2 J7 J10 J12 S1-4 Position 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 S1 On Off S2 On Off S3 Off On S4 Off On Function Reset System board memory 1 Mb 512/640K Colour display Mono 0 wait state 1 wait state Low system clock High system clock ROM select 128K 256K TC Computers Rebadges Biostars. Tekram www.tekram.com Award BIOS ID The last two numbers of the BIOS part number. 435 436 The PC Engineer’s Reference Book – Vol 2: Motherboards Code 9C Motherboard P6L40-A4 Code 9C Motherboard P5V30-B4 rev 1/P5T30B4 P5M4-M Item Form Factor CPU Cache Chipset BIOS Bus Memory (Mb) I/O Description Micro ATX Pentium/K6 512 Kb Via MVP4 4 PCI/1 ISA 768 Mb 2 EIDE, floppy USB, IR Notes Super Socket 7 UDMA/66 3 DIMM sockets P6B40-A4 Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Video Performance Description ATX Pentium II Notes Slot 1 440BX Award 4.51PG 4 PCI/3 ISA 1 Gb 4 DIMM sockets 2S, 1P, EIDE, floppy, 2 USB, 2 PS/2 AGP 2x Reasonable P6BX-A Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Video Performance Description ATX Pentium II Notes Slot 1 440BX 5 PCI/2 ISA 768 Mb UDMA/33 3 DIMM sockets 2S, 1P, EIDE, floppy, 2 USB, 2 PS/2 AGP 2x TMC Taiwan Mycomp Company. www.mycomp-tmc.com Award BIOS ID The last two numbers of the BIOS part number. Code 0 1-00 9C 9C AC Motherboard PCI58PL PCI48PG/PG4/PAT48PG PCI541T/P55CIT/PCI54SP A15TH/VP PCI541T Code AC-00 CC CC-00 DC Motherboard PCI54ST PCI541T PCI54ST PCI541T T AI5VG+ Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Video Description Baby AT Pentium/K6 etc VIA MVP3 Award 4.51PG 4 PCI/2 ISA 768 1 Mb 2S, 1P, floppy, 2 EIDE, IRDA AGP Notes Super Socket 7 66-100 UDMA CA64 Item Form Factor CPU Speeds Chipset BIOS Bus Memory (Mb) I/O Video Audio Comments Description ATX Pentium III/Celeron 1000/733 VIA Apollo Pro 133A Award 5 PCI/1 ISA/1 AMR 1.5 Gb 2 EIDE, floppy, USB, IR, Intel 82558 LAN Notes Socket 370 FSB 133 UDMA/66 3 DIMM sockets AGP Pro 4x VIA VT611A CS65 Item Form Factor CPU Speeds Chipset BIOS Bus Memory (Mb) I/O Video Audio Comments Description ATX Pentium III/Celeron 933/733 Intel 815E Award 5 PCI/1 AMR 512 Mb 2 EIDE, floppy, USB, IR, Intel 82558 LAN Intel 815 GMCH Intel ALLC200 Notes Socket 370 FSB 133 UDMA/100 3 DIMM sockets AGP 4x MI7WBM Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) I/O Comments Description Micro-ATX Celeron Notes Socket 370 Intel 810 3 PCI, 1 AMR 512 Mb 2 EIDE, floppy, ser, par, PS/2, joystick, audio UDMA/66 2 DIMM sockets 437 438 The PC Engineer’s Reference Book – Vol 2: Motherboards PCI48PG4 Item CPU Chipset BIOS Bus Memory (Mb) Cache (K) I/O Description 486 Opti Award or AMI WinBIOS 2 PCI/2 ISA/2 VESA 128 256 2S, 1P, Floppy Notes P24D 1 PCI/ISA shared. 4 slots – all must be used. Opti PCI IDE controller (82C621), SMC for serial/parallel/floppy. PCI54IT Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) I/O Description Notes Pentium 90 Triton Award PnP 1.0a compliant. Use triton.exe 4 72-pin slots 2S, 1P, Game, IDE PCI54PV3 Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Performance Description Notes Pentium 90 Opti Viper Award 3 PCI/4 ISA 4 72-pin SIMMs 2S, 1P, Floppy, IDE Slower than PCI541T PCI58PL Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Description Pentium 60/66 Opti Award 3 PCI/2 ISA/1 VL 192 512 None Notes 82C822, 82C571, 82C572 1 shared PCI/VL. PCIs busmaster, as does 1 VL. Parity only. 4 30-pin sockets (Bank 0) and 3 72-pin (0, 1 and 2). 256 standard PET 48PN 486 EISA + VL Bus Switch RNA/B/C/D RNA/B/C Position A1/2 Closed Open Open Open A3 Closed B1/2 Open Closed Open Open B3 Open C1/2 Open Open Closed Open C3 Open D1/2 Open Open Open Closed Function Cache Size 64K 128K 256K 512K CPU 486DX2 T Switch RNE1-5 RNF1-5 JP2-4 JP5 JP7 JP8 & 9 W7-10 J4 J5 Position Open Closed Open Open On On JP2 1-2 1-2 1-2 1-2 1-2 2-3 1-2 Open Closed Open Closed Open Closed W7 Open Open Closed Open Open Closed Open Closed Open Open Open Open Closed JP3 1-2 1-2 2-3 1-2 1-2 2-3 2-3 JP4 2-3 2-3 2-3 2-3 2-3 1-2 2-3 W8 Closed Open Open Open Open W9 Open Closed Open Closed Open W10 Open Open Open Open Closed 1-4 7-17 9-19 10-20 Function ODP486SX 486DX 487SX 486SX 30 pin SIMMs first 72-pin SIMMs first CPU 20 MHz 25 MHz 33 MHz 40 MHz (internal) 50 MHz (internal) 50 MHz 66 MHz (internal) Mono Display Colour Display Channel Ready Select Normal Channel Ready Select EXRDY signal generated 33 MHz VL bus speed 50 MHz Clock Source 20 MHz 25 MHz 33 MHz 50 MHz 66 MHz IDE LED Speaker Turbo Switch Reset IDE LED TD6NB SCSI Item Form Factor CPU Chipset BIOS Bus Memory (Mb) I/O Video Description ATX Pentium II 82440BX Award 4.51PG 5 PCI/2 ISA 1024 2S, 1P, floppy, 2 EIDE, IRDA AGP Notes Description ATX Pentium MMX 90-233 VIA VP3 4 PCI/3 ISA/1AGP Notes Slot 1 66-100 UDMA TIVG Item Form Factor CPU Speeds (MHz) Chipset Bus Memory (Mb) Cache (K) I/O Video 6x86/L/MX, K5, K6 FPM, EDO, SDRAM. 4 72-pin & 3 DIMM sockets. 512 2S, 1P, floppy, 2 EIDE, IRDA Winbond W83877. UDMA AGP 439 440 The PC Engineer’s Reference Book – Vol 2: Motherboards Switch SW1 1-4 SW1 5-7 SW2 1-4 JP8 J13 Position 1 On Off 5 Off On On Off Off 1 On Off On Off On Off On Off On On On 1-2* 2-3 1-4 11-15 7-17 8-18 9-19 10-20 2 Off Off 6 Off Off On On Off 2 On Off On On Off Off On On Off Off On 3 Off Off 7 Off Off Off Off Off 3 On On Off Off Off Off On On On Off On 4 Off Off 4 On On On On On On Off Off Off Off On Function CPU host bus speed 60 MHz 66 MHz CPU clock multiplier 1.5x 2x 2.5x 3x 3.5x CPU voltage (IO/Core) 3.3/3.5 3.3/3.2 3.3/3.1 3.3/3 3.3/2.9 3.3/2.8 3.3/2.7 3.3/2.6 3.3/2.5 3.3/2.1 Single voltage CPU Normal Clear CMOS Speaker Power LED and keylock ATX power on switch Turbo LED Reset HD LED TI5VG+ Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Video Performance Description ATX Pentium/K6 etc Notes Super Socket 7 VIA MVP3 Award 4.51PG 5 PCI/2 ISA 384 1 Mb 2S, 1P, floppy, 2 EIDE, IRDA AGP 66-133 UDMA Fast TI5VGA Item Form Factor CPU Cache Chipset BIOS Bus Memory (Mb) I/O Video Performance Comments Description ATX Pentium/K6 2 Mb Via MVP3 Award 6 PCI 768 Mb 2 EIDE, floppy USB, IR Notes Super Socket 7 Supports UDMA 66 UDMA/66 3 DIMM sockets AGP 2x Highly rated (PC Pro magazine) Sound on board T TI5VGF Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Video Description ATX Pentium/K6 etc Notes Super Socket 7 VIA MVP3 Award 4.51PG 6 PCI 384 1 Mb 2S, 1P, floppy, 2 EIDE, IRDA AGP 66-133 MHz SDRAM only. 3 DIMM sockets DMA/33 TI6NB(F)+ Item Form Factor CPU Chipset BIOS Bus Memory (Mb) I/O Video Description ATX Pentium II 82440BX Award 4.51PG 4 PCI/3 ISA 768 2S, 1P, floppy, 2 EIDE, IRDA AGP Notes Description ATX Pentium III Notes 4/1 for BF+ 66-133 64 Mb on board for B+ UDMA TI6VG4 Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) I/O Video 133 FSB Via Apollo Pro Plus Award 5 PCI/1 ISA 768 2S, 1P, floppy, 2 EIDE, IRDA 3 DIMM sockets. 64 Mb on board UDMA AGP 2x (4x some boards) TI7NBA Item Form Factor CPU Chipset BIOS Bus Memory (Mb) Cache (K) I/O Video Description ATX Notes Socket 370 440BX/ZX Award 4.51PG 4 PCI/2 ISA 768 2S, 1P, floppy, 2 EIDE, IRDA AGP TK7AG Item Form Factor CPU Speeds (MHz) Chipset BIOS Description ATX Athlon AMD 750 Notes Slot A UDMA 441 442 The PC Engineer’s Reference Book – Vol 2: Motherboards Item Bus Memory (Mb) I/O Video Performance Comments Description 4 PCI/3 ISA 768 Mb 2 EIDE, floppy Notes UDMA/66 3 DIMM sockets AGP Biostar M7MKA is a better choice Tomatoboards See Zida Top Gun Pentium MMX Jumper JP1 JP3 A&B JP4 A&B JP5 A&B JP6 JP7 A&B Position 1-2 2-3 1-2 2-3 1-2 2-3 A 1-2 2-3 2-3 1-2 Open A B C D E A,B B A Open B 1-2 1-2 2-3 2-3 Function Normal Clear CMOS Dual voltage CPU (P55C) Single voltage CPU (P54C) 5v DIMM 3.3v DIMM Clock multiplier Intel/AMD 1.5/3.5x Intel/Cyrix 2x Intel/AMD/Cyrix M2 2.5x 3x 2.5v CPU Core 3.5v 3.3v 3.2v 2.9v 2.8v 60 MHz host clock 66 MHz host clock 75 MHz host clock 83 MHz host clock Toshiba www.toshiba.com T1200 Jumper PJ1 PJ3 PJ4 PJ5 PJ6 PJ7 PJ8 PJ9 PL11 Position 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 Function Keyboard Default Adjustment when modem card shipped Default Adjustment when modem card shipped Enable DTR Sets DTR always True Determine if carrier from distant modem Set carrier detect always True LED connector Modem connector Power supply (HDC) LCD T Jumper PJ12 PJ13 PJ14 PJ15 PJ16 PJ17 PJ18,19 PJ20 PJ21 Position 1-2 Out PJ18 1-2 2-3 1-2 Out 1-2 Out PJ19 Out 1-2 Function Power supply 5v FDD A FDD B I/O Power supply (signal) Twin floppies Floppy/HD ICE Normal Connected to copro socket Copro not installed Installed Normal Font North European (Denmark) T2100 Switch S1 S2 S3 S4 S5 S6,7 S8 Position Off On Off On Off On Off On S6 Off Off On On Off On PJ1 PJ3 PJ4 PJ6 PJ7 PJ8 PJ9 PJ10 PJ11 PJ12 PL13 PJ14 PJ15 PJ16 S7 Off On Off On Function IRQ4 to Toshiba card slot IRQ4 to IBM-compatible card slots IRQ3 to Toshiba card slot IRQ3 to IBM-compatible card slots Reserved Enable internal display controller Disable Unidirectional printer port Bidirectional Serial 1 Serial 2 COM1 COM2 COM1 COM3 COM2 COM1 COM2 COM3 External FDD is B External FDD is A Keyboard Speaker Expansion memory Modem Plasma display FD2 FD1 Power supply Power supply HD Colour CRT Composite video External FD/printer RS 232 T3200 Switch S1 S2 S3 Position On Off On Off On Function Auto switch display mode IBM EGA Bidirectional LPT Unidirectional Comms port is CH2 443 444 Switch S4 S5 S6 S7-10 PJ2 PJ3 PJ4 PJ5 The PC Engineer’s Reference Book – Vol 2: Motherboards Position Off On Off On Off On Off S7 Off On Off On Off 1-2 3-4 5-6 7-8 9-10 11-12 S8 Off Off Off On On S9 Off Off Off On On S10 Off On On Off Off 1-2 In 3-4 Out 1-2 3-4 5-6 7-8 9-10 Function Comms port is CH1 Double font in plasma for text Single font Disable CRTC for Ext CRTC Enable internal CRTC (normal) North European font on display Other fonts Monitor Mono RGB 40 col RGB 80 col Enhanced RGB 200 line Enhanced RGB 300 line Reserved 1.6 Mb floppy (Out) 2 Mb (In) 1 floppy (Out) 2 floppies (In) Double density floppy (Out) HD (In) 640K (Out) 512K (In) 3Mb memory card exp/ext (Out) Expanded (In) Reserved MFM Method 10 ns HD delay 15 ns 20 ns 25 ns 30 ns T5100 Jumper PJ1 PJ2 PJ3 PJ4 Position 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 PJ5 PJ6 PJ7 PJ8 PJ9 PJ13 PJ14 PJ15 PJ16 PJ17 Switch S1 S2 S3 S4 Position On Off On Off On Off On Function Brightness connected to PDP board Not connected Contrast connected to PDP board Not connected 3 level grey scale 4 level 16H (horizontal) mode 1H (horizontal) mode Power supply FDD AGS interface AGS interface HD External keyboard HD power Fan Speaker LED board connector Function Disable extended memory (above 1 Mb) Enable 512K base memory 640K base memory Disable internal CRT on AGS board Enable Printer port to input T Switch S5 S6 Position Off On Off On Off Function Output AGS board supports mono Colour Internal RS232 secondary, external to primary Internal RS232 primary, external to secondary T8500 As for T2100, except: Switch PJ1 PJ2 PJ3 PJ4 PJ5 PJ8 PJ9 PJ10 PJ15 PJ16 NMI Position Function Expansion memory Lithium battery T3100 bus Motherboard FD Keyboard HD Internal SCSI Connector board I/F connector 1 Connector board I/F connector 2 Non Maskable Interrupt Totem www.totem.com.tw Award BIOS ID The last two numbers of the BIOS part number. Code 9C-00 9 9C Motherboard TM 586IV v1.3 TM 486SPS TM 586-IP2/486SPS Code AC BC-00 DC-00 Vision 1 As for DC 286 WS 286 As for DC 286 WS 386 As for DC 286, except no J6. Transcend www.transcend.nl TS-AVD1 Item Form Factor CPU Description ATX Pentium III Notes Slot 1 Motherboard TM 586-IP2 TM 586IV2A TM 586IV2 v3 445 446 The PC Engineer’s Reference Book – Vol 2: Motherboards Item Speeds (MHz) Chipset BIOS Bus Memory (Mb) I/O Video Description Notes 133 FSB Via Apollo Pro Plus Award 5 PCI/2 ISA 768 2S, 1P, floppy, 2 EIDE, IRDA 3 DIMM sockets UDMA AGP 2x (4x some boards) TS-AWE1 Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) I/O Description ATX Pentium III Notes Slot 1 100 FSB Intel 810E Award 5 PCI/1 AMR 768 2S, 1P, floppy, 2 EIDE, IRDA, joystick, audio Trigem (800) 766 4377 Award BIOS ID The last two numbers of the BIOS part number. Code 0 Motherboard 486SQR Code Motherboard Tulip AT 386/25 Jumper J7 J9 J16 J19 J20 Position 1-2 2-3 1-3 2-4 1-2 2-3 Out Function 27256 EPROM 27128 EPROM Reserved In Out Colour display Mono Selects mono mode Reserved Enable floppy Disable Position 1-2 2-3 1-2 2-3 1-2 2-3 Function Colour display CGA or TEVA-2) Mono 27256 EPROM 27128 EPROM Enable floppy Disable AT 386sx Jumper J5 J9 J17 Installation of VGA card does not require J5 to be set 3 DIMM sockets UDMA T AT Compact 1 Processor board Jumper J287 JXD JAP10 J8/10 S1,2 S3 S4 JLM EM JRL Position J287 1-2 2-3 1-2 2-3 S1 2-3 2-3 1-2 1-2 All out 1-2 2-3 1-2 2-3 1-2 Out 1-2 In In Out 1-2 2-3 JXD Out Out 1-2 1-2 S2 2-3 1-2 2-3 1-2 JAP10 1-2 2-3 1-2 2-3 AT Compact 2 Jumper J? J18 Position 1-2 2-3 1-2 3-4 5-6 7-8 9-10 11-12 13-14 15-16 17-18 19-20 21-22 23-24 25-26 Function Low fan speed High Mouse IRQ3 Mouse IRQ4 Mouse IRQ5 COM2 IRQ 3 COM1 IRQ4 LPT2 IRQ5 LPT1 IRQ7 Enable COM2 Enable COM1 Disable serial port Enable LPT2 Enable LPT1 Disable parallel port Compact 3 Jumper J11 J15 Position 1-2 2-3 1-2 2-3 Function 2 x 32K ROM (27256) 2 x 16K ROM (27128) Mono display Colour (CGA or TEVA-2) Position Out In Function Normal batteries Rechargeables DC 286 Jumper J5 J8/10 1-2 1-2 2-3 2-3 Function CPU Copro 8 MHz 5.33 MHz 8 MHz 8 MHz 10 MHz 6.66 MHz 10 MHz 10 MHz Total RAM 128K 256K 640K 1 Mb (not used) Mono display Mono display Colour 128K EPROM 256K EPROM New revision memory expansion card (2.64 MB) Old revision (640K) Early memory timing mode Non-early Short RAS 160 Reserved 447 448 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper J6 J15 Position 1-2 2-3 Function LED, speaker & battery LPT1 unidirectional LPT1 bidirectional DT 286 As for DC 286 DT 386 As for DC 286, except J17 is network access header PC Compact 2 L2.1 Jumper J8 J10 J12 J13 J14 Position All out 3-4 1-2 All in 1-2 3-4 1-2 3-4 5-6 All out 1-2 3-4 5-6 All out 3-4 5-6 7-8 9-10 Function Mono 40 col colour 80 col colour EGA Serial port IRQ4 IRQ3 IRQ2 for RTC IRQ3 IRQ4 None IRQ2 for mouse port IRQ3 IRQ4 None Enable LPT1 Enable LPT2 Enable COM1 Enable COM2 L2.2-L2.5 As for 2.1, except: Switch SI,SE Position SI 1-2 In Out Function SI 3-4 In Out SE 1-2 Out In Piggy back board installed FGL chip installed L3 As for L2.2-2.5 L5 & L6 As for 2.1, except: Jumper J22 Position 2-3 1-2 Function 27128 EPROM 27256 EPROM L7 As for L5 & L6, except: Jumper JMEG Position 1-2 2-3 Function 4C512 DRAMs 4C1024 DRAMs (JLOHI must be set either position) T Jumper JLOHI Position 1-2 2-3 Function Low type 4C512 DRAMs High type SX Compact 2 Jumper J14 Position 1-2 2-3 1-2 2-3 All out 1-2 3-4 5-6 7-8 9-10 11-12 13-14 15-16 17-18 19-20 21-22 23-24 25-26 27-28 29-30 31-32 33-34 J17 J18 Function 27256 EPROM 27128 EPROM Mono display Colour display Selects mono mode Mouse IRQ3 Mouse IRQ4 Mouse IRQ5 COM2 IRQ 3 COM1 IRQ4 LPT2 IRQ5 LPT1 IRQ7 Enable COM2 Enable COM1 Disable serial port Enable LPT2 Enable LPT1 Disable parallel port Disable onboard HD Enable onboard HD Disable floppy Enable floppy TR 386/25 As for AT 386/25 TR 386sx As for AT 386sx Twinhead Tyan www.tyan.com Award BIOS ID The last two numbers of the BIOS part number. Code 1C-00 9C 9C-00 AC-00 GC Motherboard Tempest II S1462 Tomcat Trinity (S1592) S1570/1590 S1562S Code JC JC JC JC-00 KC Motherboard Titan Pro 1668ATX Titan III S11468/1466 S1563D (Tomcat III Dual) S1470 Titan VXAT S1468 (OEM Newtec, Korea) 449 450 The PC Engineer’s Reference Book – Vol 2: Motherboards S1590 Trinity AT Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Video Audio Performance Description AT Pentium Notes Super Socket 7 VIA Apollo MVP3 4 PCI/4 ISA 3 DIMM sockets, 2 SIMMs 1 Mb 2S, 1P, floppy, 2 EIDE, IRDA UDMA AGP Excellent S1598 Trinity Item Form Factor CPU Cache Chipset BIOS Bus Memory (Mb) I/O Video Description ATX Pentium/K6 2 Mb Via MVP3 Notes Super Socket 7 5 PCI/2 ISA 768 Mb 2 EIDE, floppy USB, IR UDMA/33 3 DIMM sockets AGP 2x S1810 Tomcat Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) I/O Description Micro-ATX Celeron Notes Socket 370 Intel 810 4 PCI 512 Mb 2 EIDE, floppy UDMA/66 2 DIMM sockets S1837 Item Form Factor CPU Chipset BIOS Bus Memory (Mb) I/O Video Audio Comments Description ATX Pentium II Intel 440BX Notes 6 PCI/1 ISA 1 Gb 2 EIDE, floppy USB, IR, Intel 82559 LAN UDMA/33 4 DIMM sockets Adaptec AIC-7896 AGP 2x SMP Slot 1 ESS ES1373 S1846 Item Form Factor CPU Speeds (MHz) Chipset Description ATX Pentium II 550 440 BX Notes T Item BIOS Bus Memory (Mb) Cache (K) I/O Video Performance Description AMI WinBIOS 5 PCI/2 ISA 768 Notes 2S, 1P, floppy, 2 EIDE, IRDA UDMA AGP Average Description ATX Pentium II 550 Vis Apollo Pro 133A 6 PCI/1 ISA 768 2S, 1P, floppy, 2 EIDE, IRDA Notes 3 DIMM sockets. S1854 Item Form Factor CPU Speeds (MHz) Chipset Bus Memory (Mb) I/O Video Performance Slot 1 & Socket 370 3 DIMM sockets. UDMA AGP 4x supported Average S1952DLU Thunder X Item Form Factor CPU Chipset Bus Memory (Mb) I/O Video Description ATX Pentium II/Xeon Intel 440GX 6 PCI/1 ISA 2 Gb 2 EIDE, floppy USB, IR Notes SMP Slot 2 UDMA/33 4 DIMM sockets Adaptec AIC-7896N LVD AGP 2x Tiger ATX S1692S Item Form Factor CPU Speeds (MHz) Bus Memory (Mb) Description ATX Pentium II 233-333 5 PCI/2 ISA 512 SDRAM 1 Gb EDO Video Notes Slot 1 4 DIMM sockets. 3.3v. AGP Thunder 2 ATX S1696DLUA Item Form Factor CPU Speeds (MHz) Bus Memory (Mb) Video Audio Performance Description ATX 2 Pentium II 333 4 PCI/2 ISA 512 SDRAM 1 Gb EDO Yamaha OPL4-ML Notes Slot 1 1 each shared, 1 with RAID port extension 4 DIMM sockets AGP 1 Mb wavetable ROM Average. 66 MHz bus speed. 451 452 The PC Engineer’s Reference Book – Vol 2: Motherboards Tomcat I Item CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Description Pentium 200 430HX Award or AMI 4 PCI/5 ISA 512 512 2S, 1P, Floppy, IDE, USB Notes 1 each shared Parity or ECC FPM or EDO in 8 slots. Pipelined burst Tempest II Item CPU Speeds (MHz) Chipset Bus Memory (Mb) Cache (K) I/O Description 2 Pentium 166 Neptune 4 PCI/5 EISA 512 512 No idea Notes FPM only in 8 slots. 256 standard. Asynchronous. Titan III Item CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) I/O Description Pentium/Cyrix 6x86 166 430FX Award or AMI 4 PCI/4 ISA 128 512 IDE only Notes None shared 3.3 or 5v FPM/EDO in 4 sockets Pipelined Burst. 256 standard. Titan Pro Item CPU Speeds (MHz) Chipset Bus Memory (Mb) I/O Description 2 Pentium Pro 200 440FX (Natoma) 5 PCI/3 ISA 1 Gb 2S, 1P, Floppy, IDE, USB Notes 1 each shared Parity or ECC, EDO/BEDO/FPM Trinity 400 Item Form Factor CPU Speeds Chipset BIOS Bus Memory (Mb) I/O Video Description ATX Pentium III/Celeron 1000/700 VIA Apollo Pro 133A Award 6 PCI/1 ISA 768 Mb 2 EIDE, floppy, USB, IR Notes Socket 370 FSB 133 UDMA/66 3 DIMM sockets AGP 4x U UHC Umax UMC United Microelectronics UMC88 Unicom Unisys PCI 3xx3 Jumper J5 J8 J15 Position In In Out 1-2 3-4 5-6 7-8 9-10 11-12 13-14 15-16 17-18 19-20 21-22 23-24 25-26 Out Out In Out In Out Out Out In Out Out Out In Out Function Pipeline mode enabled Colour display Mono SCSI IRQ9 SCSI IRQ10 SCSI IRQ11 Primary host adapter address DMA DRQ0 DMA DRQ5 DMA DRQ6 DMA DRQ7 DMA DACK0 DMA DACK5 DMA DACK6 DMA DACK7 SCSI enabled SCSI disabled 454 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper J17 J18 J21 JP2 Position In Out In Out In Out Function Parallel port is LPT1 Parallel port is LPT2 VGA controller enabled Disabled Intel coprocessor Others MPI 4xx3 Jumper JP2 JP4,5 JP6 JP7 JP8 JP9 JP10 Position 1-3,2-4,5-7,6-8 In 1-2,3-4,5-6,7-8 Out JP4 JP5 Out Out In In In Out Out In 1-2 In 2-3 Out 1-2 Out 3-4 In 5-6 Out 7-8 Out 9-10 Out 11-12 13-14 In Out Out In 1-2 Out 3-4 Out 5-6 Out 7-8 In 9-10 Out 11-12 Out 13-14 Out 15-16 In Function 3.5” diskette connector goes to A Alternate drive (5.25) connector goes to A Enable HD controller Disable Colour display Mono Disable CPU option Enable Enable LPT1 Enable LPT2 SCSI IRQ15 SCSI IRQ11 SCSI IRQ10 SCSI IRQ9 SCSI primary address (0340 or 0140) Enable SCSI Disable SCSI DMA DRQ7 SCSI DMA DRQ6 SCSI DMA DRQ5 SCSI DMA DRQ0 SCSI DMA DACK7 SCSI DMA DACK6 SCSI DMA DACK5 SCSI DMA DACK0 MPI 4xx6 Jumper JP1 JP2 JP3,4 JP6 JP7 Position Out In Out JP3 Out In 1-2 Out 3-4 In 5-6 Out 7-8 Out 9-10 Out 11-12 In Out 15-16 In 1-2 Out 3-4 Out 5-6 Out 7-8 In Function Normal 486DX operation Colour display Mono JP4 Out In 13-14 Out In Enable HD controller Use IDE HD SCSI IRQ15 SCSI IRQ11 SCSI IRQ10 SCSI IRQ9 SCSI primary address (0340 or 0140) Enable SCSI Disable Enable onboard VGA controller SCSI DMA DRQ7 SCSI DMA DRQ6 SCSI DMA DRQ5 SCSI DMA DRQ0 U Jumper JP8 JP10 JP11 JP12 JP15 JP16 Position 9-10 Out 11-12 Out 13-14 Out 15-16 In 1-2,3-4,5-6,7-8 In 1-3,2-4,5-7,6-8 Out 1-2 In 2-3 Out 1-2 In 2-3 Out 1-2 In 2-3 Out 1-2 In 2-3 Out 1-2 Out 2-3 In Function SCSI DMA DACK7 SCSI DMA DACK6 SCSI DMA DACK5 SCSI DMA DACK0 3.5” diskette connector goes to A Alternate drive (5.25) connector goes to A Serial B is COM2/4 Serial B is COM1/3 Serial A is COM1/3 Serial A is COM2/4 Parallel port LPT1 Parallel port LPT2 CPU speed select Enhancement socket select Unitron Award BIOS ID The last two numbers of the BIOS part number. Code 9C Motherboard U7908 Code Motherboard Unknown F4DXL-UC4.3D/DV (486) Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache (K) Comments Jumper JP4-6 JP11-13 JP17-19 Description AT 486 Notes UMC 7 ISA 192 Mb 256 Position JP4 Off On Off On JP11 Out Out 1-2,3-4 1-2,3-4 5-6 1-2,4-5 1-2 1-2 2-3 JP5 Off On On Off JP12 2-3 2-3 1-2,3-4 5-6 1-2,3-4 5-6 1-2,4-5 1-2 1-2 2-3 3 VESA JP6 On On On Off JP13 1-2,3-4 1-2,3-4 2-3 JP17 1-2 1-2 Out JP18 Out Out 2-3,4-5 JP19 Out Out 2-3,4-5 Function CPU Clock 25 MHz 33 MHz 40 MHz 50 MHz CPU Type 486DX/DX2 AMD 486DX/DX2 (5v) Cyrix 486DX 1-2,3-4 1-2 2-3,4-5 2-3 Cyrix 486DX2 1-2,3-4 1-2,3-4 1-2,3-4 1-2,3-4 1-2 2-3 1-2 1-2,3-4 3-4,5-6 5-6 1-2 1-2 1-2,3-4 1-2,3-4 5-6 Out P24D P24T DX4/100 AMD 486DX4/100 455 456 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper Position 2-3 Out 2-3 2-3 2-3 2-3 1-2,3-4 2-3 2-3 1-2,3-4 Out 3-4 JP14-16 JP23 JP14 1-2 1-2 2-3 JP15 1-2 1-2 2-3 JP16 1-2 1-2 2-3 JP23 In Out Out JP14-16 SW1-3 JP14-16 2-3 1-2 1-2 1-2 1-2 In Out In Out SW1 Off Off Off On SW2 Off Off On Off SW3 Off On Off Off Description AT 486 7 ISA 64 Mb 256 Notes JP21 JP22 1-2 Out 1-2 Out Out Out Function AMD 486 DX2-80* 486SX UMC 486SX Insert wire between pin 4 of JP12 and 3 of JP20 CPU voltage (non-dip sw) 3.3v* 3.6v 5v Use VR LT1086 on U24 CPU voltage (dip sw) 5v 4v 3.6v 3.45v 3.3v VESA >33 MHz VESA <=33 MHz VESA 1 WS VESA 0 WS M 601 (486) Item Form Factor CPU Bus Memory (Mb) Cache (K) Jumper JP2-6 JP7,8 JP16,17 Position JP2 Out Out In JP7 1-2 2-3 JP7 1-2 2-3 JP7 1-2 2-3 1-2 2-3 JP7 2-3 2-3 1-2 2-3 JP3 In In In JP8 1-2 1-2 JP8 1-2 1-2 JP8 1-2 1-2 2-3 2-3 JP8 1-2 2-3 1-2 1-2 JP16 1-2,3-4 2-3 1-2,3-4 JP17 1-2 Open 2-3 3 VESA JP4 Out In In JP24 1-2 1-2 2-3 2-3 JP5 1-2 2-3 1-2 JP6 Out 2-3 1-2 Function Cache size 64K 128K 256K TK 9207 Clock Generator 33 MHz 40 MHz KTS0808c/0801c/AV9107 40 MHz 50 MHz TK 9307 25 MHz 33 MHz 40 MHz 50 MHz PLL52C05/KTS KDN 802 25 MHz 33 MHz 40 MHz 50 MHz v1.3E/F CPU Type 486DX SX (Cyrix 486) P23N U 3486 Item Form Factor CPU Speeds (MHz) Chipset BIOS Bus Memory (Mb) Cache Jumper JC1-4 JC5,6 JF1-5 J1-3 J4 J5 Description AT 386/486 UMC AMI 6 ISA 32 Mb 256K Position 1-2 2-3 JC5 1-2,3-4 2-3 1-2,3-4 JF1 Out Out Out In Out Out Out 1-2 2-3 1-2 2-3 1-2 2-3 Notes 1 weird local bus slot JC6 1-2 Out 2-3 JF2 In Out In In In Out Out JF3 In In Out Out In In Out JF4 In In In Out Out Out Out JF5 Out In In In In In Out Function 80486 80386 or Cyrix 486DLC CPU Select (486 above) DX/DX2 SX 487SX/Overdrive CPU Speed 25 MHz 386 33 MHz 386 40 MHz 386 20 MHz 486 25 MHz 486 33 MHz 486 50 MHz 486 Local bus card in slot 5 Normal card Normal 486DX-50 with local bus device Normal 386/486 DX-50 with local bus device K5TI Item Form Factor CPU Bus Memory (Mb) Cache Jumper JP1,JP2 JP3 JP4 JP5,8 JP6,7 Description AT Pentium 6 ISA Notes 256K Position 1-2 2-3 1-2,3-4 5-6,7-8 9-10,11-12 Out 3-4 1-2,3-4 JP5 1-2 2-3 2-3 1-2 JP8 Out 2-3 1-2 Function COM2 Infrared – 87334=HP, 87336=HP or Sharp ECP DMA 0 ECP DMA 1 ECP DMA 2 50 MHz bus speed 60 MHz 66 MHz BIOS Type EPROM 12v Flash 5v Flash IDE0/1 IRQ 14/15 457 458 The PC Engineer’s Reference Book – Vol 2: Motherboards Jumper JP9 JP10 JP11-12 14 JP13 JP15 JP16 JP17,18 JP19 JP20-22 JP23 JP28 Position 2-3 1-2 2-3 In Out JP11 1-2 2-3 1-2 1-2 2-3 In Out In Out JP17 In Out In Out 1-3 2-4 In Out 1-3,2-4 3-5,4-6 In Out JP12 1-2 1-2 2-3 JP14 Out Out Out JP18 In In Out Out Function IDE 0/1 MIRQ0/MIRQ1 AT bus PCICLK/3 AT bus PCICLK/4 Clear CMOS Normal Cache size None 256K 512K 5v CPU voltage 3.3v CPU non-pipeline Pipeline mode L1 cache w/t L1 cache w/b CPU clock multiplier 2.5x 3x 2x 1.5 3.45 VRE voltage 3.3 VRE/MD voltage Enable onboard voltage regulator Disable 5v SRAM 3.3v SRAM Normal speed Turbo SiS 486 PI Item Form Factor CPU Bus Memory (Mb) Cache Jumper JP1 Description AT 486 3 PCI/3 ISA Notes 4 72-pin 256K JP5-12 Position 1-2 2-3 1-2 2-3 1-2 2-3 JP5 Off 3-4 Off Off Off 2-3 1-2 Off JP13,W1 *3v AMD DX2– 6-7 for AMD DX4 JP13 W1 1-2 Out JP2 JP4 JP6 1-2 1-2 1-2 Off Off 2-3 1-2 Off JP7 1-2,6-7 1-2,6-7 1-2,6-7 2-3 5-6* 7-8 3-4 2-3 JP8 4-5,6-7 4-5,6-7 4-5,6-7 4-5,6-7 Off 2-3,5-6 1-2,6-7 4-5,6-7 JP9 On On On On Off On On On JP10 2-3 2-3 2-3 2-3 2-3 2-3 1-2 2-3 JP11 1-2,3-4 1-2,3-4 1-2,3-4 3-4 Off 2-3 3-4 1-2,3-4 JP12 4-5 4-5 4-5 4-5 4-5 4-5 1-2 4-5 Function 32Kx8/8Kx8 Tag RAM 16Kx8 128K cache 256K cache Normal Clear CMOS CPU Type (Yellow) Intel P24D/AMD SV8B AMD 5x86-P75 Cyrix/ST/IBM 5x86 486 SLE DX/DX2/DX4 AMD DX/DX2/DX4 (NV8T) TI/Cyrix DX2/DX4 P24T (Pentium ODP) IBM/ST DX4-100 CPU Voltage 3v U Jumper JP18 Position 2-3 Out Out 1-2 3-4 Function 4v 5v 25 MHz 33 MHz 40 MHz Out In VXPro Pentium Possibly PC Chips Item Form Factor CPU Chipset BIOS Bus Memory (Mb) Cache Jumper JP1 JP2 JP3 JP3 D JP4 JP5 JP6 JP9 Description AT Pentium VxPro Notes 4 PCI/3 ISA 2 DIMM, 4 72-pin 256K Position 1-2 2-3 1-2 2-3 A 2-3 1-2 2-3 2-3 1-2 1-2 2-3 1-2 2-3 A 1-2 2-3 2-3 1-2 A In Out Out Out Out 1-2 2-3 USI US Logic www.uslogic.com B 2-3 2-3 2-3 1-2 2-3 C 2-3 2-3 1-2 2-3 1-2 B 2-3 1-2 2-3 2-3 B Out In Out Out Out C Out Out In Out Out D Out Out Out In Out Function Normal Clear CMOS 5v EDO/FPM DIMM 3.3v SDRAM DIMM CPU Speed 50 MHz 55 MHz 60 MHz 66 MHz 75 MHz PCI CPU CLK/2 33 MHz 12v Flash ROM 5v Flash ROM Clock Multiplier 1.5/3.5 2x 2.5x 3x CPU Core Voltage 3.5v 3.2v 2.9v 2.8v 2.5v P55C (Dual voltage CPU) P54C (Single Voltage CPU) 459 460 Notes The PC Engineer’s Reference Book – Vol 2: Motherboards V Vanilla VAN3S33A-2NW 386SX-33 Processor Board Switch JP1 JP2 JP3 JP4 JP5 JP6 JP7 JP8 Position On Off On On On On 1-2 2-3 2-3 1-2 2-3 Function Colour Mono Enable Bus Mouse IRQ5 Enable Bus Mouse IRQ4 Enable Bus Mouse IRQ3 Enable Bus Mouse IRQ9 Onboard battery Clear CMOS Select EPROM Select bus mouse enabled Select bus mouse disabled J1 Jumper 1-4 11-15 7 & 17 8 & 18 9 & 19 10 & 20 Function Speaker Power LED/Keyboard Turbo switch Turbo LED Reset HD LED Colourtron Jumper 1 2 3 Position On On Off On Function IRQ9 enable 0 wait state 1 wait state Enable card 462 The PC Engineer’s Reference Book – Vol 2: Motherboards Vextrec www.vextrec.com Victor V286D Switch E1-2 E3-4 E5-6 E7-8 E9-10 E14-15 E15-16 E17-18 E19-20 E20-21 E22-23 E23-24 E31-32 E32-33 Position In Out In In Out In In In In Out In In In In In In In Function Slim Add-PAK Receiver PCB is Master Slave PDiag Pulldown resistor RTC/RAM Normal operation Clear 2 32K x 8 BIOS EPROMs Enable onboard video Disable onboard video Standard/no video interrupt Video IRQ9 VGA BIOS AT Mode VGA BIOS PS/2 Mode VGA analogue or multisync monitor Non-standard multi-frequency monitor Disable HD LED Enable HD LED V286M Backplane board Switch A B C JB1 JB2 J5 J6 Position In Out Out 1-4 Out 2-3 Out 1-8 In 2-7 In 3-6 In 4-5 In 1-2 In 2-3 In 1-2 In 2-3 In Function External Hercules/CGA Onboard VGA Reserved Reserved Reserved Reserved Enable COM1 Enable COM2 IRQ4 for COM1 IRQ5 for COM2 Parallel port is primary port Parallel port is secondary port Primary parallel port interrupt selected Secondary parallel port interrupt selected Position On On Off On On Off On On Off On Function Enable parallel port Parallel port is LPT1 Parallel port is LPT2 Enable serial port Serial port is COM1/3 (affects I/O port) Serial port is COM2/4 (affects I/O port) Disable ext parallel port (bidirectional mode) Primary FD address 3F0-3F7 Secondary FD address 370-377 Enable IDE type drive port V386DSX Switch S1 S2 S3 S4 S5 S6 S7 V Switch S8 Position On Off E1-E2 E5-E6 E7-8 E8-9 E10-11 E11-12 E13-14 E14-15 E16-17 E17-18 E19-20 E20-21 E22-23 E23-24 E25-26 E26-27 E28-29 E29-30 Function Primary IDE port address 1F0-1F7 for CS0, 3F6-3F7 for CS1 Secondary IDE port address 170-177 for CS0, 376-377 for CS1 256K (32K x 8) BIOS Reserved Colour video Mono Indicator on with power, half bright during IDE activity Indicator on with power only LPT IRQ5 LPT IRQ7 COM1 IRQ4 COM2 IRQ3 Enable onboard video Disable Disable video IRQ 9 Enable Non-standard multi-frequency monitor installed VGA or standard Serial port is COM3 or COM4 Serial port is COM1 or COM2 V386M/33 CPU Card Switch JB1 J14 Position 1-6 In 2-5 Out 3-4 In 1-2 2-3 Function Reserved Out-Disables looped manufacturing data Colour display Out=mono IDE responds to primary HD address IDE responds to secondary HD address Position 1-4 Out 2-3 Out 1-8 2-7 3-6 4-5 1-2 2-3 1-2 2-3 Function Reserved Reserved Enable COM1 Enable COM2 COM1 IRQ4 COM2 IRQ5 Parallel port is LPT1 Parallel port is LPT2 Primary LPT IRQ Secondary LPT IRQ Backplane Switch JB1 JB2 J5 J6 V386MW/33 CPU Card Switch JP1 Position 1-2 2-3 Out Function Primary IDE address Secondary IDE address No IDE Reserved (all out) Position 1-8 2-7 Function Enable COM1 Enable COM2 JP2 Backplane Switch JB1 463 464 The PC Engineer’s Reference Book – Vol 2: Motherboards Switch J13,14 Position 3-6 4-5 1-2 2-3 Function COM1 IRQ4 COM2 IRQ3 Enable LPT1 Enable LPT2 V386MWX/20 CPU Card Switch JB2 JB3 J4 J12 J13 Position 1-6 In 3-4 In 1-10 2-9 Out Out In In 4-7 5-6 1-2 Out In Out All Out 3-8 Out In Out In Function Reserved Reserved Out=1024x768 NI In=1024x768 Interlaced 800x600 setting 16 colour @ 72 Hz, 256 @ 60 Hz 16/256 @ 60 Hz 16 @ 72 Hz, 256 @ 56 Hz 16/256 @ 56 Hz Out=AT VGA mode In=PS/2 VGA Out=Other monitor timing In=Multisync 1 timing Onboard speaker Speaker connector Onboard video Other VGA For piggyback VGA board Backplane Switch JB1 J13,14 Position 1-8 2-7 3-6 4-5 1-2 2-3 Function Enable COM1 Enable COM2 COM1 IRQ4 COM2 IRQ3 Enable LPT1 Enable LPT2 Position In Out Out Function External Hercules/CGA Onboard VGA Reserved Position 1-4 Out 2-3 Out 1-8 In 2-7 In 3-6 In 4-5 In 1-2 In 2-3 In 1-2 In 2-3 In Function Reserved Reserved Enable COM1 Enable COM2 COM1 IRQ4 COM2 IRQ3 Parallel port primary address Parallel port secondary address Primary LPT IRQ Secondary LPT IRQ V386MX CPU Card Switch A B,C Backplane Switch JB1 JB2 J5 J6 V V486M/33 CPU Card Switch JB1 J8 J9 J18 J19 J20 J21 Position 1-6 3-4 1-2 Out 1-2 2-3 Out In 1-2 2-3 Out In Out Function Reserved Reserved Onboard speaker Speaker connector Reset 486SX 486DX/487SX 486SX 486DX/487SX 486DX 487SX 486SX Onboard video External video Backplane Switch J7 J8 J9 J10 J11 JB1 JB2 Position 1-2 2-3 1-2 2-3 1-2 2-3 1-4 2-3 1-8 2-7 3-6 4-5 Function ADD-PAK lock I/O address LPT1 IRQ7 LPT2 IRQ5 LPT1 chip select LPT2 chip select Parallel port mode HD primary port I/O select HD secondary port I/O select Floppy precompensation value Floppy drive type COM1 selected COM2 selected Enable IRQ4 Enable IRQ3 V486M/50 CPU Card Switch JB1 J4 J8 J18 J19 J20 J21 Position 1-6 3-4 1-2 Out 1-2 2-3 Out In 1-2 2-3 Out In Out Function Reserved Reserved Keyboard lock Onboard speaker Speaker connector 486SX 486DX/487SX 486SX 486DX/487SX 486DX 487SX 486SX Onboard video External video Backplane Switch J7 Position Function ADD-PAK lock I/O address 465 466 The PC Engineer’s Reference Book – Vol 2: Motherboards Switch J8 J9 J10 J11 JB1 JB2 Position 1-2 2-3 1-2 2-3 1-2 2-3 1-4 2-3 1-8 2-7 3-6 4-5 Function LPT1 IRQ7 LPT2 IRQ5 LPT1 chip select LPT2 chip select Parallel port mode HD primary port I/O select HD secondary port I/O select Floppy precompensation value Floppy drive type COM1 selected COM2 selected Enable IRQ4 Enable IRQ3 V86M CPU Card Switch JB1 Position 1-16 In In Out Out 3-14 In In Out Out 5-12 In 5-12 Out 6-11 In Out Out 8-9 2-15 In Out In Out 4-13 In Out In Out 7-10 In In Out Function Floppy A 360 K 1.2 Mb 720 K 1.44 Mb Floppy B 360 K 1.2 Mb 720 K 1.44 Mb 1 floppy 2 floppies HD select No IDE 1st IDE 2nd IDE Reserved Backplane Switch JB1 JB2 J5 J6 Position 1-4 Out 2-3 Out 1-8 In 2-7 In 3-6 In 4-5 In 1-2 2-3 1-2 2-3 Function Reserved Reserved Enable COM1 Enable COM2 COM1 IRQ4 COM2 IRQ3 Parallel port is primary Parallel port is secondary Primary parallel port IRQ Secondary parallel port IRQ V486MWX/20 CPU Card Switch JB1 J4 J8 J9 J18 Position 1-6 3-4 1-2 Function Reserved Reserved Keyboard lock Speaker connector Reset 486SX V Switch J19 J20 J21 Position 2-3 Out In 1-2 2-3 Out In Out Function 486DX/487SX 486SX 486DX/487SX 486DX 487SX 486SX Onboard video External video Position 1-8 2-7 3-6 4-5 1-2 2-3 Function COM1 selected COM2 selected Enable IRQ4 Enable IRQ3 Enable LPT1 Enable LPT2 Backplane Switch JB1 J13,14 V486MX/20 CPU Card Switch JB1 J4 J8 J9 J18 J19 J20 J21 Position 1-6 In 3-4 In 2-5 Out 1-2 2-3 Out In 1-2 2-3 Out In Out Function Reserved Reserved Reserved Keyboard lock Onboard speaker Speaker connector Reset 486SX 486DX/487SX 486SX 486DX/487SX 486DX 487SX 486SX Onboard video External video Position 1-8 2-7 3-6 4-5 1-2 2-3 Function COM1 selected COM2 selected Enable IRQ4 Enable IRQ3 Enable LPT1 Enable LPT2 1-2 Out Backplane Switch JB1 J13,14 V486MX/25 As for V486MWX/20 Vision Top Award BIOS ID The last two numbers of the BIOS part number. 467 468 The PC Engineer’s Reference Book – Vol 2: Motherboards Code 9C BC-00 Motherboard VT586-2/TX S7-MVP3 Code CG-00 Motherboard S7-MVP3 Vobis VTech (847) 215 9806 www.pcpartner.com Award BIOS ID The last two numbers of the BIOS part number. Code 1C 9C 9C-00 DC DC-00 EC-00 Motherboard MP5-TRI MP5-TRI MB540N HIS P6EX4-A3 VIB804DSE MB520NH Code KC LC HC KC LC MB 520NH Aristo AM 439VX MB540N Aristo AM 430TX/Yellow Dragon TX VIB804DSE Same as Digimate T5DX-VPX2E VTI See Vextrec Motherboard MB500N Platinum NSV/NST/NSP MP5-TRI MB500N MB500N W Walters International 325S Switch J1 J2 J3 J4 J5-8 J9 J10 J11 J12 Position In Out 1-2 In Out In Out 1-2 2-3 In Out J13 J14 Function Enable external battery Disable Reserved Colour monitor Mono 8042 speed control pin Normal for 325S Normal for 325SC 32K cache 64K cache Power LED/Keylock Turbo LED High speed Low speed Speaker Reset 333S As for 325S 333SC As for 325S MB1212C Switch J1 J2 Position 1-3 4-5 Function Power LED Keyboard LED Speaker 470 The PC Engineer’s Reference Book – Vol 2: Motherboards Switch JP1 JP2 JP3 JP4 JP6 JP7 Position 1-2 2-3 1-2 2-3 1-2 2-3 Function Turbo LED Reset Switch Turbo switch Processor CLK External CLK MGA monitor CGA/EGA/VGA External power Internal power 200BE Switch JP3-8 J5 J6 J7 J18 J19 J24 J25 J30 JPG SW1 Position 1-3 1-2 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 Function Up to 4 Mb Up to 8 Mb High speed LED CPU display connector Normal Reset for chips register setup Power LED/Keylock Speaker External battery CPU CLK selectable by keyboard High speed Reset Normal Reserved Colour monitor Mono 120/160BE As for 200BE 160A Switch J2 J3 J5 J6 J7 Position 1-2 2-3 1-2 1-2 2-3 1-2 2-3 J16 J17 J18 Function CPU CLK selectable by keyboard 16 MHz High speed LED Colour monitor Mono Reset Normal Reset for chips register setup Power LED/Keylock Speaker External battery 120/160B As for 160A ELT 325P Switch SW1 Position 1-2 2-3 Function Mono display Colour W Switch JP3,4 J5 J18 J19 J24 J25 J30 J32 Position JP3 2-3 1-2 JP4 1-2 2-3 In Out In Out Function Memory Bank 0,1 onboard, Bank 2,3 on card Bank 0,1 onboard or on card Turbo LED Power LED/Keylock Speaker External battery Turbo switch set low Turbo switch set high Reset CPU pipeline Non-pipeline ELT 386sx/160D Switch JP2,3 J5 J18 J19 J24 J25 Position JP2 1-2 2-3 JP3 2-3 1-2 1-2 J30 J31 Function Memory Card and SIP for base memory SIP for base memory LED Power LED/Keylock Speaker External battery Alt-Ctrl + for high speed Alt-Ctrl – for low speed Reset ESDI, Token Ring Compatible Jumper Warpspeed www.warpspeedinc.com Western Digital www.wdc.com Faraday Bus PC Switch JU1 JU1-4 JU1 JU2-1 JU2-2 JU 2-3 Position 1 In In Out Out In Out 5 In Out In Out In Out In Out 2 In Out In Out 6 Out In Function Monitor Type Disabled 80 x 25 graphics 40 x 25 graphics Mono Enable COM1 RS422 transmitter Enable software control COM1 RS422 transmitter EPROM 27256 2764, 27128 Disable COM1 Enable Disable COM2 Enable Enable LPT1 Disable 471 472 The PC Engineer’s Reference Book – Vol 2: Motherboards Switch JU2-4,5 JU2-6,7 JU2-8 Position 4 In Out 6 In Out In Out 5 Out In 7 Out In J2 J3 J4 J5 J6 J7 J8 J9 Function EPROM 27256 2764, 27128 COM1 RS422 RCV RS232 RCV RS422 terminator COM1 No Terminator RS232/422 RS232 Parallel port Reset Speaker 6 pin keyboard connector 9 pin keyboard connector NMI port Faraday FE6400 SW1 Switch 1,7,8 3,4 5,6 Position 1 On Off Off Off Off Off 5 On Off On Off 7 On On Off On Off 8 On On On Off Off 6 On On Off Off Function Floppy Drives 0 1 2 3 4 Reserved Monitor Type None 40x25 80x25 Mono SW2 Switch 1-4 J17 5-9 Position 4 On On On On On On On On Off Off Off Off Off Off Off Off 9 In Out Out 5 Off 3 On On On On Off Off Off Off On On On On Off Off Off Off 10 Out In In 6 On 2 On On Off Off On On Off Off On On Off Off On On Off Off 11 In In Out 7 On 1 On Off On Off On Off On Off On Off On Off On Off On Off 12 Out Out In 8 On 9 Off Function Memory Size 64K 96K 182K 160K 192K 224K 256K 288K 320K 352K 384K 416K 448K 480K 512K 640K Base Memory 65K 128K 256K Baud 75 (1-5,6 must be on) W Switch J17-13 SW1-2 J2 J3 Position On Off On Off On Off On Off On Off J17-13 Out In Off Off On On Off Off On On Off Off SW1-2 Off On On On Off Off Off Off On On On On On On On On On On Off Off Off Off Off Off Off Off Off Off Off Off Off Off In Out J5 J14 J15 J16,18 Function 110 134.5 150 300 600 1200 2400 4800 9600 19200 Coprocessor 8087 installed Not installed Disable UART Disable EPROM Enable NMI control Reset Speaker Keyboard connectors J17 EPROM 0 1 In Out Out 2 Out In In 3 In In Out EPROM 1 4 Out Out In 5 In Out Out 6 Out In In Faraday FE641x Switch V1,2 JU1-1 2 3 4 5 7,8 J10 J11 J12,13 J14 J15 J16 J17 J18 Position V-1 In Out In Out V-2 In In Out Out In Out In Out In Out In Out 7 Out Out In 8 In In Out Function Monitor Type Disabled 40 x 25 graphics 80 x 25 graphics Mono Reserved Enable LPT1 Disable Enable COM1 Disable Enable 256K base memory 64K Enable EPROM Disable EPROM Type 2764 27128 27256 Power Connector Reset Keyboard Speaker Floppy RS232 LPT NMI EPROM 7 In In Out 8 Out Out In Type 2716 2732 2764/27128 473 474 Switch J21 The PC Engineer’s Reference Book – Vol 2: Motherboards Position Function Mono port Faraday FE642x Switch J2 J3 J4 J9 J10 J11 J12,13 J15 J16,17 J18 J19 SW1 1,2 Position Out In Out In Out In S1 In Out In Out S2 In In Out Out Function 64K RAM 256K RAM 27256 EPROM 27128, 2764 27128, 2764 27256 LPT Power Reset Keyboard Onboard floppy Serial ports Speaker NMI Monitor Type Disabled 40 x 25 graphics 80 x 25 graphics Mono Faraday Micro PC/CMOS Switch JU1 1,2 JU2 1,2 Position 1 Out In In 1 In In Out Out 2 Out Out In 2 In Out In Out J2,3 J4 J5 J6 Function EPROM Type 2764, 27128 27256 27512 Monitor Type Disabled 80 x 25 graphics 40 x 25 graphics Mono Keyboard Speaker Reset NMI Faraday A-Tease Switch JF5 3,4 JF1-6 JF1-7 JF1-8 JF2-1 JF2-2,3 Position 3 Out In In Out In Out In Out In Out 2 In Out 4 In Out 3 Out In Function EPROM Size 27128 27256 Disable COM1 Enable Disable COM2 Enable Enable LPT1 Disable Enable COM1 RS422 Xmitter Software control COM1 RS232 Receiver COM1 RS422 Receiver W Switch JF2-4 JF2-5 JF2-6,7 JF2-8 JF3-4 JF3,5-7 JF3-8 JF4-1 Position In Out In Out 6 In Out In Out In Out Function COM1 RS422 Terminator In Out Enable COM2 RS422 Receiver Software control 7 Out In Out In Out In COM2 RS422 Receiver COM1 RS232 Receiver COM2 RS422 Terminator In Out Maintenance Mode Normal User defined – may be read by software AT keyboard PC keyboard Mono adapter CGA JF1,JF5 JF1-2 Out In In In JF1-3 In Out Out Out JF1-4 Out Out In In JF1-5 In In Out Out JF5-1 Out Out Out In WD286-LPM Switch W3 W4 W5 W9 W11 W12 W15 W16 Position 1-2 2-3 1-2 2-3 1-2 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 In Out W17 J6 J15 Function Mono CGA Disable onboard floppy Enable Reserved 16/12.5 MHz 80C287maths copro 6 MHz 80287 Disable onboard VGA Enable Disable IDE LED Enable Enable IRQ9 Disable Enable PS/2 IRQ12 Disable Reserved Reset Key switch/IDE WD286-WDM2 Switch W1 W3 W4 W5 W6 W7 W8 W10 Position In In Out In Out 1-2 In Out Function Enable MFM HD LED Enable HD controller chip select Reserved HD controller IRQ14 Reserved Reserved Floppy IRQ6 IDE IRQ14 JF5-2 In In In Out Type 2716 2732 2764/27128 27256 475 476 Switch W11 W12 W13 W17 W18 W19 W20 W21 W22 The PC Engineer’s Reference Book – Vol 2: Motherboards Position Out Out In In In Out In In In In Out Function Disable IDE LED AT keyboard XT keyboard Enable video IRQ9 Enable PS/2 mouse IRQ12 Colour display Mono LPT IRQ7 COM2 IRQ3 COM1 IRQ4 IDE Chip select WD286-WDM20 Switch W3 W4 W5 W10 W6 W7 W8 W12 W13 W17 W18 W19 W20 W21 W22 W23 W24 Position In Out In Out Out 1-2 In Out In In In 2-3 1-2 In In In Out In 1-2 2-3 In Function Enable HD controller chip select Reserved HD controller IRQ14 IDE support IRQ14 Reserved Reserved Floppy IRQ6 AT keyboard XT keyboard Enable video IRQ9 Enable PS/2 mouse IRQ12 Colour display Mono LPT IRQ7 COM2 IRQ3 COM1 IRQ4 IDE Chip select Enable video NMI Disable onboard video data buffer Enable Enable onboard video display WD386SX-LPX Switch W1 W2 W3 W4 W5 W6 W7 W8 W9 W10 Position In Out Out In In Out 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 Function Enable password memory clear Disable Reserved Reserved Enable PS/2 mouse IRQ12 Disable Mono display Colour External 8514/A video clock Onboard VGA clock Disable onboard VGA Enable Fixed frequency monitor Multi-frequency PC/AT VGA BIOS PS/2 VGA BIOS Enable onboard speaker Disable W Switch W11 J6 Position 1-2 Function Disable onboard IDE LED Reset Win Maybe same as below WinCo Electronic Co www.winco.com.tw Award BIOS ID The last two numbers of the BIOS part number. Code 9C 9C-00 Motherboard P55TV2 WP55VT2D Code AC-00 Motherboard SL 586VT-2/WP55VT-2D SL586VT-2 Same as Fong Kai SL 586VT-II Win-Lan Wintec (Win Technologies) www.wintec.com. See also Edom Award BIOS ID The last two numbers of the BIOS part number. Code 0-00 9C AC BC FC Motherboard MP 046-A MP 066 MP 071B MP 070 MP 076 Code GC-00 HC JC NC TC Motherboard MP 082 or 060 Rev A MP 054 MP 058 MP 058 MP 064 Wyse WY 1100 Switch JC4 JC5 JC6 JC7 JC8 R102 P1 P2 P3 J1 J2 Position Function Disable video Disable COM1 Disable COM1 IRQ Disable LPT1 Disable LPT1 Trace cut for 256K RAM selection COM1 COM2 LPT1 Keyboard Video 477 478 The PC Engineer’s Reference Book – Vol 2: Motherboards Switch J12 J13 J14 J16 J17 SW1 Position Function Power Backplane connector Drive A Drive B Multifunction backplane Reserved WY 1400 Switch S1 S2 S3 S4 S5,5 S7,8 W1-4 W5 W6 Position Off On Off Off Off S5 Off On Off On S7 On Off W1 In Out In Out Out Out S6 Off Off On Off S8 On On W2 In In Out Out W3 In In In In W4 In In In In Function Reserved No 8087 8087 installed Reserved Reserved Primary Display Mode Mono 80 column CGA 40 column CGA EGA Floppies 1 2 Cyls Hds 306 2 612 4 306 6 306 4 Reserved Reserved WY 2012i Switch J10 J17 J28 J30 J31 SW1 1-3 S4 Position 1-2 2-3 1-2 2-3 1-2 2-3 Out In Out In S1 On Off On On Off Function 80 ns RAM 120 ns RAM Power-on from power supply Power-on from system board Internal battery External battery S2 Off Off On S3 On On Off Fast ALE timing mode 1 wait state 2 wait states Total Memory 1 Mb 2 Mb 4 Mb Colour video Mono WY 2108 Switch WA WB WG Position 1-2 2-3 In Out In Function 640/384K 512/512K Enable extended memory Disable 512K RAM WPC 256 128 128 HD Cap 5 Mb 20 Mb 15 Mb 10 Mb W Switch WH Position Out In Out Function 1 Mb RAM Normal bus master Not supported Daughterboard Switch W8 W10 W11 W13 J4 WD Position In Out In Out In Out In Out In Out 1-2 2-3 Function Normal oscillator Text oscillator 128K ROM 256/512K ROM 256/512K ROM 128K ROM 512K ROM 256/512K ROM Test mode Normal Colour display Mono WY 2112/2214 Switch J4,5 J8 J9 J12 J13 J18 WF1-3 J21,22 Position J4 Out In Out In Out In In Out Out In Out WF1 In Out Extended J24 In In In In Out Out Out Out J5 In Out WF2 Out In Extended J25 In In In In In In Out Out WF3 Out In J21 Out In Base J6(WB) In In Out Out Out Out Out Out J22 Out In Function BIOS ROM size 256/128K 512K 1 ROM wait state 0 ROM wait state 1 DRAM wait state 0 DRAM wait state Colour display Mono Normal operation Enable DRAM parity Disable 80287-10 copro 10 MHz Unsupported CPU Board JT(WA) In Out In Out In Out In Out WY 2116i Switch J1 J2 J3 Position In Out Out In 1-2 2-3 Function 256/512K ROM 128K ROM 256/512K ROM 128K ROM 16 MHz CPU Unsupported Base 512K 640K 512K 640K 512K 640K 512K 640K Extended 0 0 512K at 1000000h 384K at 1000000h 512K at 2000000h 384K at 2000000h 512K at 4000000h 384K at 4000000h 479 480 The PC Engineer’s Reference Book – Vol 2: Motherboards Switch J4 J6 J7 J8 J9 J12 J13 J5,14-16 J17 J18,19 WA WB WD WC,E,F J10 Position Out In In Out In Out Out In In Out 1-2 2-3 Out In J5 In Out 1-2 2-3 2-3 1-2 Out In Out In In Out WE In Out J14 Out In J15 In Out J16 2-3 1-2 WC Out In J10 Out In WF Out In Function 512/640K base memory 256K base memory 0 RAM wait state 1 RAM wait state 0 ROM wait state 1 ROM wait state 0 ROM wait state 2 ROM wait state Enable parity Disable Masked keyboard scanner chip Ceramic Normal Test RAM size 1 Mb ¼ Mb Reserved (normal) Reserved 211003-02 LB ASIC revision 211008-01 LB ASIC revision 640 K base memory 512K base memory Move split memory Disable Colour video Mono video 80287-10 copro 10 MHz Unsupported WY 2200 Switch W1-5 W6 W7 W30 SW1 Position W1 In Out Out Out In In Out Colour Mono W100 J17 J19 J24 W2 Out In Out W3 Out Out In W4 Out Out In W5 In In Out Function EPROM 2764 27128 27256 Reserved Disable 14.318 MHz oscillator Enable 640K onboard RAM Disable 512-640K for 128K plug-in cards Colour display Mono Reserved Keyboard Battery Dual speed oscillator WY 3116sx Processor Board Switch W1 WA/WB Position Out In In Out Function Keyboard controller chip set at 250646-XX Keyboard controller chip set at 250230-12 Normal Reserved W Switch WC WD WQ,E WF WG WJ WK WL Position 1-2 2-3 2-3 1-2 WQ 1-2 2-3 1-2 2-3 1-2 2-3 2-3 1-2 2-3 1-2 1-2 2-3 Function 512/256K BIOS 128K BIOS 128/256K BIOS 512K BIOS WE In Out Normal Reserved Normal Reserved Colour Display Mono No maths copro 80387SX-16 Installed Keyboard controller chip set at 6805 Keyboard controller chip set at 68705 2 BIOS chips 1 BIOS chip WY 3216 Processor Board Switch WA WB WF WG L/R WC WD Position 1-2 2-3 2-3 1-2 1-2 2-3 2-3 1-2 1-2 2-3 2-3 1-2 2-3 1-2 1-2 2-3 1-2 2-3 Function 512/256K BIOS 128K BIOS 128/256K BIOS 512K BIOS No 80387-16 80387-16 installed No 80287-10 or 80387-16 80287-10 and 80387-16 instaled Normal Reserved No 80387-16 80387-16 installed Static column memory Unsupported memory Normal Reserved Colour Display Mono WY 3225 Processor Board Switch WA,B,V WC WD WE WF WG Position In Out 1-2 2-3 2-3 1-2 In Out 1-2 2-3 2-3 Function Normal Reserved 512/256K BIOS 128K BIOS 128/256K BIOS 512K BIOS Enable RAM parity Disable Normal Manufacturing test Colour Display 481 482 The PC Engineer’s Reference Book – Vol 2: Motherboards Switch WH WI WJ WK WL WM WN WU/T/S R/P/Q J5 Position 1-2 In Out Out In In Out 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 In Out Function Mono Normal Reserved Normal Reserved No 80387 80387 Installed Normal Reserved Enable Hidden Refresh Disable Normal Reserved Normal Reserved 1 chip keyboard scanner 2 chips Connector for serial/parallel interface board WY 386sx/16 Switch JP3 JP4 JP5 JP6 JP8 JP10 JP11 JP13 Position 2-3 1-2 1-2 2-3 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 Function Disable onboard IRQ2 Enable Enable onboard FD controller Disable PS/2 mouse Serial mouse Enable onboard video controller Disable Mono monitor Colour LPT1 IRQ7 LPT1 IRQ5 COM1 IRQ4 COM1 IRQ3 36 MHz VGA clock VGA feature clock WY 386sx/20 Switch JP1 JP5 JP6 JP7 J1 J2 J3 J4 J5 Position 1-2 2-3 1-2 2-3 1-2 2-3 2-3 1-2 Function 20 MHz 16 MHz Colour video Mono Internal battery External battery Power good from power supply From system board Reset Keylock/Power LED Speaker Speed button Speed LED W Decision 386/25 Switch JMP1 JMP3 JMP4 JMP6 Position In Out Out In 2-3 1-2 2-3 1-2 J9 J13 J14 J15 J16 J12 Function Colour video Mono Disable Diagnostic Select Enable Disable CMOS discharge Enable 64K cache 128K cache External battery Keylock/Power LED Speaker Turbo switch Reset Speed LED Decision 486 Switch W1 W2 W3 W4 J2 J3 J12 J13 J14 J15 J16 Position 2-3 1-2 Out Function Colour Display Mono Reserved Reserved Reserved Keyboard Battery Reset Turbo button Turbo LED Speaker Power LED Decision 486-33(T) As for Decision 486 483 484 Notes The PC Engineer’s Reference Book – Vol 2: Motherboards Y Yamashita Yellow Dragon EFA? Award BIOS ID The last two numbers of the BIOS part number. Code 9C Motherboard P5TX-AT Code 9C-00 Motherboard TX Board TX Board Vtech/PC Partner MB540N/Aristo AM 430TX Yukon Award BIOS ID The last two numbers of the BIOS part number. Code DC Motherboard P54C Code Motherboard 486 Notes The PC Engineer’s Reference Book – Vol 2: Motherboards Z Zenith Data Systems BM 200 Revisions 1 & 2 Switch ST2 ST3 ST4 ST5 ST6 ST7-9 ST10 ST11 ST12 ST13 ST14 ST15 ST16 Position In Out In Out In Out In Out In Out ST7 In In Out In In Out In Out In Out In Out In Out In Out ST8 In In In Out ST9 In Out Out In Function 0 WS read, 1 WS write RAM 1 WS read, 1 WS write RAM 1 WS ROM 2 WS ROM 12 MHz, fast mode 8 MHz, normal mode 8 MHz bus 6 MHz bus 48 MHz system clock connected Disconnected Memory 2 x 256K 512K 4 x 256K 1 Mb 2 x 1 Mb 2 Mb 4 x 1 Mb 4 Mb 80/100 ns RAM 27512 ROM 27256 ROM Colour display Mono Enable video I/O Disable 1.8432 MHz clock connected Disconnected Enable 36 MHz VGA clock Disable Enable 25.175 MHz VGA clock Disable 488 The PC Engineer’s Reference Book – Vol 2: Motherboards Switch ST17 ST19 ST20 ST21 ST22 ST23 ST24,25 ST26-33 ST34 ST35 ST36,37 ST38 ST39 ST40 ST41 ST42 ST43 ST44 ST45 ST46 ST47 ST48-53 ST54 ST55 ST56 Position In Out Out Out Out In Out In Out ST24 Out In Out In In In Out In Out In Function Enable 28.322 MHz VGA clock Disable Reserved Reserved Reserved 16-bit BIOS ROM data ST25 Out In In Out In Out In In In Out In Out In Disable VGA BIOS Enable 9 pin 25 pin 370-377h COM2 LPT2 COM2 COM1 390-397h COM1 LPT1 COM2 COM1 Default port address 187ns floppy precomp 125ns DRQ2 from floppy interface Disconnected Default clocks 120/150ns DRAM IRQ3 on COM2 IRQ3 disconnected Ground to 0v link 16-bit video memory access IOCHRDY connected for HD Disconnected Enable VGA memory Disable IRQ14 only IRQ14 + ACTDISK LPT IRQ15 LPT IRQ7 COM2 Handshake signal definition Leave connected Leave disconnected Not assigned BM 400 MCA Switch SW1,2 SW3 Position SW1 On On Off Off On SW2 On Off On Function Volume 0% 50% 100% Boot from diskette Disable diskette boot BM 500 MCA As for BM400 MCA. BM 600 Revisions 1 & 2 Switch JP6-8 Position 2-3 1-2 Function Coprocessor not installed Installed Parallel LPT1 LPT2 Z Switch JP12 JP13-16 Position 1-2 2-3 JP13 2-3 2-3 1-2 2-3 1-2 1-2 JP14 2-3 2-3 1-2 2-3 1-2 1-2 JP15 1-2 1-2 1-2 1-2 2-3 2-3 JP16 1-2 1-2 1-2 1-2 2-3 2-3 Function Relocate to FA0000-FDFFFF Do not relocate Type Block RAM 512*9 A 2 Mb 512*9 A+B 4 Mb 512*9 A 6 Mb 1 Mb*9 B 4 Mb 1 Mb*9 A 4 Mb 1 Mb*9 A+B 8 Mb SW1 Switch S1-8 Position S1 & 4 On, others off Function EPROM & I/O overlap – do not change SW2 Switch S1 S2 S3 S4 S5-7 S8 S9 S10 JP13-16 Position On Off On Off On Off On Off Off On Off On Off On On Off JP13 2-3 2-3 1-2 JP14 2-3 2-3 1-2 JP15 1-2 1-2 1-2 Cheetah Same as Packard Bell PB 680. Z148XT SW 402 Switch 8MDS 8087 60 HZ PRDS S1 S2 S3 S4 Position On Off On Off On Off On Off On On On On Function Disable 8 MHz Enable (front panel switch) Copro not installed Installed 60 Hz video refresh 50 Hz video refresh Disable parity checking Enable 1 WS (4.77 MHz only) 2 WS 3 WS (4.77 + 8 MHz) 4 WS JP16 1-2 1-2 1-2 Function 25-pin=COM1, 9-pin=COM2 Other way round Disable COM1 Enable Disable COM2 Enable Disable LPT1 Enable Printer port=LPT1 Printer port=LPT2 BIOS in RAM ROM BIOS Mono display Colour Disable 2nd SIMM (B) Block Enable Memory 2 Mb Bank A 2 Mb Bank A + B 2 Mb Bank A, 4 Mb Bank B 489 490 The PC Engineer’s Reference Book – Vol 2: Motherboards Switch S5 Position On Function 5 WS SW 403 Switch FLIN 2/1D BTFL BTWC Position On Off On Off BTFL On Off Off BTWC Off On Off Function No floppy 1 or more floppies 1 floppy 2 floppies Boot Sequence HD Floppy Manual from monitor Z386/16 AT Revisions 1 & 2 Switch J201 J202 J204 J207 J211 Position 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 80387 Type 80287-10 80287-8 80387-16 Function 80387 synchronous 80387 asynchronous 80287 80387 No coprocessor Coprocessor installed 1 Mb memory card 1 Mb memory card not used Low speed coprocessor High speed coprocessor J201 2-3 2-3 2-3 J202 1-2 1-2 2-3 J204 2-3 2-3 2-3 J211 2-3 1-2 2-3 Z-Station Campus Same as Packard Bell PB 640. Z-Station 510 Same as Packard Bell PB 470 (Thanks to Rudd Thornton). Zida Technologies Zida Technologies (Tomatoboards) www.zida.com Award BIOS ID The last two numbers of the BIOS part number. Code 1C-00 9C 9C-00 Motherboard Tomato 4DPS-256K 5DHX (Tomato) rev 1.2 Tomato 5DVX Code BC-00 CC DC-00 Motherboard Tomato 5DTX Tomato 5DVX Tomato 5STX Connectors Here are typical pinouts for a typical clone motherboard – yours may be different! Power LED and Keyboard Lock Usually a 5-pin keyed BERG strip, which means one jumper is missing at the Power LED end Pin 1 2 3 4 5 Description LED Power Key (No Connection) Ground Keyboard Lock Ground Reset 2-pin BERG strip Pin 1 2 Description Ground Reset Input Turbo LED 2-pin BERG strip Pin 1 2 Description LED Anode LED Cathode Speaker 4-pin keyed BERG strip for an external 2-inch, 8-ohm speaker Pin 1 2 3 4 Description Speaker Data Out Ground Ground +5 VDC HD Activity LED 4-pin keyed BERG strip Pin 1 Description LED Anode (+) 492 The PC Engineer’s Reference Book – Vol 2: Motherboards Pin 2 3 4 Description LED Cathode (-) LED Cathode (-) LED Anode (+) Keyboard 5-pin, circular-type DIN socket, or 6-pin Mini-DIN. Pin 1 2 3 4 5 Description Clock Signal Data Signal Not Used Ground +5V Fused VDC Pin 1 2 3 4 5 6 Description Data Signal Reserved (N/C) Ground +5Volt DC Clock signal N/C Power Supply (PS8 and PS9) 6-pin AT standard power connectors. Most power supplies have two six-wire connectors, two of the wires on each connector are black. Align the two black wires on each connector in the middle. Pin 1 2 3 4 5 6 Connector PS8 Power Good +5 VDC +12 VDC -12 VDC Ground Ground Connector PS9 Ground Ground -5 VDC +5 VDC +5 VDC +5 VDC Parallel Port 2x13-pin male header. Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 Description STROBE Data Bit 0 Data Bit 1 Data Bit 2 Data Bit 3 Data Bit 4 Data Bit 5 Data Bit 6 Data Bit 7 ACK BUSY PE SLCT Pin 14 15 16 17 18 19 20 21 22 23 24 25 26 Description AUTO FEED XT ERROR INIT SLCT IN Ground Ground Ground Ground Ground Ground Ground Ground No Connection Pinouts Serial Port 2x5-pin male headers, may be wired in one of two ways. The first arrangement is more modern. 1 3 5 7 9 2 4 6 8 10 1 2 3 4 5 6 7 8 9 10 Pin 1 2 3 4 5 Description Carrier Detect (CD) Transmit Data (TXD) Signal Ground Request To Send (RTS) Ring Indicator (RI) Pin 1 2 3 4 5 Description Carrier Detect (CD) Receive Data (RXD) Transmit Data (TXD) Data Terminal Ready (DTR) Signal Ground Pin 1 2 3 4 5 6 Description Mouse Data Signal Reserved (N/C) Ground +5Volt DC Mouse Clock signal N/C Mouse Pin 6 7 8 9 10 Description Receive Data (RXD) Data Terminal Ready (DTR) Data Set Ready (DSR) Clear To Send (CTS) No Connection Pin 6 7 8 9 10 Description Data Set Ready (DSR) Request To Send (RTS) Clear To Send (CTS) Ring Indicator (RI) No Connection 493 494 Notes The PC Engineer’s Reference Book – Vol 2: Motherboards
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