Specifications

INTEL OEM PRODUCTS AND SERVICES DIVISION PRELIMINARY - REV 0.1
Classic/PCI i486 Baby-AT Motherboard Technical Product Summary
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Classic/PCI i486 Baby-AT Motherboard
Preliminary Technical Product Summary
Revision 0.1
Table of Contents
Introduction.........................................................................................................................................4
Baby-AT Form Factor...................................................................................................................4
Board Level Features ..........................................................................................................................5
CPU..............................................................................................................................................5
Performance Upgrade ...................................................................................................................5
Second Level Cache......................................................................................................................5
System BIOS ................................................................................................................................5
PCI Auto-configuration Capability ........................................................................................................ 5
Setup Utility......................................................................................................................................... 6
FLASH Implementation........................................................................................................................ 6
Upgrade Utility..................................................................................................................................... 6
Flash User Area.................................................................................................................................... 7
Keyboard (and Mouse) Interface ................................................................................................... 7
System Memory............................................................................................................................ 7
Core Chip Set ...............................................................................................................................7
82424TX Cache/DRAM/Controller (CDC) ...........................................................................................8
82423TX Data Path Unit (DPU)........................................................................................................... 8
82378IB System I/O (SIO)....................................................................................................................8
Expansion Slots ............................................................................................................................8
SMC 37C663 Super I/O Controller............................................................................................... 8
Dallas DS12887 Real Time Clock, CMOS RAM and Battery........................................................ 8
Front Panel Connectors.................................................................................................................8
Security ........................................................................................................................................9
BIOS Password..................................................................................................................................... 9
Setup Enable Jumper............................................................................................................................9
System Integration Features................................................................................................................10
Back panel Connections................................................................................................................ 10
Power Supply................................................................................................................................ 10
Appendices ..........................................................................................................................................11
Appendix A − User-Installable Upgrades ......................................................................................11
System Memory.................................................................................................................................... 11
Performance Upgrade ...........................................................................................................................12
Qualified DRAM SIMMs ..................................................................................................................... 12
Appendix B − Jumpers.................................................................................................................. 13
Appendix C − BIOS Setup Options...............................................................................................14
Appendix D − BIOS Recovery ......................................................................................................15
Using the Upgrade Utility..................................................................................................................... 15
Recovery Mode..................................................................................................................................... 15
Appendix E − Memory Map..........................................................................................................16
Appendix F − I/O Map.................................................................................................................. 17
Appendix G − Board Interrupts & DMA.......................................................................................18
Appendix H − Connectors............................................................................................................. 19
AT Style Keyboard Port (J8L1 = Keyboard)..........................................................................................19
Optional PS/2 Style Keyboard, Mouse Ports (J8L2 = Keyboard, J9L1 = Mouse).................................... 19
Turbo LED Connector (J1A1)...............................................................................................................19
Hard Drive LED Connector (J1A2).......................................................................................................19
Key lock/Power LED Connector (J1B1)................................................................................................ 19
Speaker Connector (J1C1) .................................................................................................................... 19
Turbo Switch Connector (J1C1B) .........................................................................................................19
Primary Power Connector (J9K1).......................................................................................................... 20
Auxiliary (3.3V) Power Connector (J4H1) ............................................................................................ 20
Parallel Port (J7J1)...............................................................................................................................20
Serial Ports (J7L2 = COM1, J7L1 = COM2)......................................................................................... 20
Reset Connector (J1B2)........................................................................................................................20