Intel 486MIS User manual
PREFACE
Thank you for purchasing the 486MIS system board. This document
gives an aid to the configuration and installation of this system board.
The information in this document is subject to change ithout notice.
This document contains information protected by copyright. All rights are
reserved. No part of this document may be used or reproduced in any
forms or by any means, or stored in a database or retrieval system,
ithout prior ritten permission.
TRADEMARKS
Intel is a registered trademark of Intel Corporation.
IBM is a registered trademark of International Business Machines
Corporation.
Microsoft is a registered trademark of Microsoft Corporation.
VESA is a registered trademark of Video Electronics Standard
Association.
All other trademarks used in this manual are the property of their
respective o ners.
486MIS System Board User's Manual Page 1
TABLE OF CONTENTS
CHAPTER 1: INTRODUCTION 4
CHAPTER 2: JUMPERS & CONNECTORS 6
SYSTEM BOARD JUMPERS 6
CPU External Cl ck Jumpers 8
CPU Type Jumpers 8
Cache Size Jumpers 9
VESA L cal Bus Jumper 9
Clear Passw rd Jumper 10
Display Type Jumper 10
FLASH BIOS Jumper 11
SCSI P rt Jumper Bl ck W1 11
IDE P rt Jumpers 12
Parallel P rt Jumper 12
SYSTEM BOARD CONNECTORS 13
P wer Supply C nnect rs 13
Keyb ard C nnect r 14
P wer LED and Keyb ard L ck C nnect r 14
Speaker C nnect r 15
Reset C nnect r 15
Turb Switch C nnect r 16
Turb LED C nnect r 16
Parallel P rt C nnect r 17
Serial P rt 1 & 2 C nnect rs 17
Fl ppy Interface C nnect r 18
IDE Interface C nnect r 19
Harddisk Activity LED C nnect r 19
SCSI Interface C nnect r 20
CHAPTER 3: HARDWARE INSTALLATION 21
THE DRAM SIMMs 21
Installing DRAM SIMMs 22
INSTALLING A VL-BUS CARD 23
EQUIPMENT REQUIRED 24
SCSI / IDE SETUP 25
SCSI ID Setup 25
SCSI Device Terminati n 25
SCSI Default Setting 25
SCSI/IDE Dual Operati n 25
CHAPTER 4: BIOS SETUP 27
ENTERING SETUP 27
STANDARD CMOS SETUP 29
ADVANCED CMOS SETUP 30
AUTO CONFIGURATION - BIOS DEFAULTS 33
AUTO CONFIGURATION - POWER-ON DEFAULTS 33
CHANGE PASSWORD 34
Page 2 486MIS System Board User's Manual
AUTO DETECT HARD DISK 35
HARD DISK UTILITY 35
WRITE TO CMOS AND EXIT 35
DO NOT WRITE TO CMOS AND EXIT 35
CHAPTER 5: DOS/WINDOWS DRIVERS 36
DOS/WINDOWS DRIVERS QUICK INSTALLATION 36
ASPI2DOS ASPI MANAGER 37
aspi2d s C mmand Line Opti ns 37
DOS/WINDOWS DRIVERS FORMATTING UTILITIES 41
L w-Level F rmatting with scsifmt 41
Partiti ning & High-Level F rmatting with afdisk 42
Viewing Device Inf rmati n with sh wscsi 44
Playing Audi CDs with cdplayer 46
CHAPTER 6: OS/2 v2.1 DRIVERS 49
INSTALLATION 49
COMMAND LINE USAGE 50
CHAPTER 7: NOVELL NETWARE 3.1X, 4.0X 51
INSTALLATION 51
APPENDIX A: KEYBOARD SPEED SWITCH 54
APPENDIX B: AMI BIOS HARD DISK TYPE 55
APPENDIX C: MEMORY MAPPING 56
APPENDIX D: AT I/O ADDRESS MAP 57
APPENDIX E: INTERRUPT ASSIGNMENTS 59
APPENDIX F: SPECIFICATION 60
486MIS System Board User's Manual Page 3
CHAPTER 1: INTRODUCTION
The 486MIS system board adds to our 486 product line high integration
and cost effective solution ithout compromising performance and
quality. With top speed at 50MHz and integrated 64K/128K/256K Write-
Back cache, the 486MIS dramatically boosts system throughput for even
the most demanding applications. The 486MIS offers features and
functionality exceeding any other system board in its class, including:
CPU:
·Intel i486DX, i486DX2, i486SX, i487SX, P24T, and Overdrives.
Cache Memory:
·Supports 64K/128K/256K/512K cache memory.
Main Memory:
·Supports 512Kx36, 1Mx36, 2Mx36, 4Mx36, and 8Mx36 72-pin SIMM
modules.
·Up to 64 MBytes on-board memory.
S ots:
·T o 32-bit VESA Local Bus (VL-Bus) slots.
·Six 16-bit ISA bus slots.
On-Board Battery:
·Use Dallas compatible DS1287 Real-Time-Clock and Battery ith
over 10 years of operation in the absence of po er.
SCSI Port:
·32-bit VL-Bus interface ith 128-byte data buffer to increase
performance.
·Compatible ith Adaptec 1510/1520/1522 SCSI-2 adapters.
Page 4 486MIS System Board User's Manual
·Supports Processor Programmed I/O.
·Multitasking ASPI manager for DOS.
·On-board BIOS supports boot capability, and up to t o hard disk
drives under DOS ithout a soft are driver.
·Supports ide range of both synchronous and asynchronous
devices: disk, Tape, CD-ROM, WORM, DAT, and other SCSI
peripherals.
IDE Port:
·Turbo/Normal selections for fast or slo IDE hard drives.
·Plug and play, replaces any non-intelligent IDE controller ithout
reformatting the disk drives.
·Soft are drivers are not required for all operating systems.
F oppy Disk Contro er:
·Fully IBM register set compatible.
·Supports up to t o 3.5-inch or 5.25-inch floppy disk drives.
·Supports 360KB / 720KB / 1.2MB / 1.44MB densities.
·Floppy Disk Controller can be disabled.
Periphera s:
·Supports t o Serial ports and one Parallel port.
486MIS System Board User's Manual Page 5
CHAPTER 2: JUMPERS & CONNECTORS
When working with the 486MIS,
it is extreme y important that
you avoid static e ectricity.
A ways ground yourse f by
wearing a wrist or ank e strap.
Figures 1 on the next page sho s the component layout of the 486MIS
system board ith locations of the system board jumpers and
connectors. Note that most jumpers and connectors on the system board
are labeled ith proper names ith pin 1 marked as '1'. To avoid
damaging the board and to have proper operation caution should be
taken hen connecting these components.
SYSTEM BOARD JUMPERS
Jumpers are used to select bet een various operating modes. A jumper
s itch consists of t o, three, or four gold pins projecting from the system
board. Placing the plastic jumper cap over t o pins connects those pins
and makes a particular selection. Using the cap to cover t o pins in this
ay is referred to as shorting those pins. If the cap is not placed on any
pins at all, this is referred to as leaving the pins open.
Note: When you open a jumper, leave the plastic jumper cap attached
to one of the pins so you don't lose it.
Page 6 486MIS System Board User's Manual
FIGURE
486MIS System Board User's Manual Page 7
CPU Externa C ock Jumpers
If you are installing an i486DX, or i486SX the internal CPU clock speed is
the same as the external CPU clock speed. This is different for i486DX2
CPU here the external speed is one-half of the internal speed. For
example, a 486DX2-66 has an external clock speed of 33MHz.
CPU Externa
C ock Speed
JP3 JP4 JP5 ID3
20MHz OPEN SHORT SHORT 1-2
25MHz SHORT OPEN SHORT 1-2
33MHz SHORT SHORT OPEN 1-2
40MHz OPEN OPEN SHORT 2-3
50MHz OPEN SHORT OPEN 2-3
CPU Type Jumpers
CPU Type JP1 JP2 JP18
486DX, 486DX2 1-2 1-2, 3-4 1-2
487SX, ODP486SX 2-3 1-2, 3-4 1-2
486SX OPEN 2-3 1-2
Cyrix 486DLC OPEN 2-3 2-3
Care should be taken hen installing the CPU into the Pin Grid Array
(PGA) socket on the system board. Make certain that pin 1 of the CPU
chip is correctly aligned ith pin 1 of CPU socket. The location of pin 1
on the CPU is denoted by a small notch.
Page 8 486MIS System Board User's Manual
Cache Size Jumpers
The system board supports 64KB/ 128KB/ 256KB/ 512KB of cache
memory.
Cache Size Jumper Selecti n
Cache
Size
JP7 JP8 JP9 JP10 JP11 JP12 JP13 JP14 JP15
64KB 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 2-3
128KB 1-2 1-2 2-3 2-3 2-3 1-2 1-2 1-2 1-2
256KB 2-3 1-2 2-3 2-3 2-3 2-3 2-3 1-2 2-3
512KB 2-3 2-3 2-3 2-3 2-3 1-2 2-3 2-3 1-2
Cache Size and SRAM L cati ns
Cache
Size
Tag RAM
U15
Data Bank 0
U20,U21,
U22,U23
Data Bank 1
U24, U25,
U26, U27
64KB 8Kx8 8Kx8 8Kx8
128KB 32Kx8 32Kx8 None
256KB 32Kx8 32Kx8 32Kx8
512KB 32Kx8 128Kx8 None
VESA Loca Bus Jumper
Jumper ID2 allo s any VL-Bus adapter to identify the speed of the
system board.
High Speed Write ID2
System board runs zero ait state rite
transfer. Some VL-Bus adapters may not
be able to run this mode.
1-2
System board runs one ait state rite
transfer. All VL-Bus adapters can operate
in this mode.
2-3
(Default)
486MIS System Board User's Manual Page 9
C ear Password Jumper
Jumper JP32 is used to clear the system pass ord if user ere to forget
it.
Function JP32
Normal Pass ord Operation OPEN
(Default)
BIOS performs infinite loop test and clears
system pass ord
SHORT
Follo these steps to clear system pass ord:
1. Turn po er OFF.
2. Open the system cover and gain access to jumper JP32 and W1.
3. Short jumper JP32 and disable SCSI BIOS through jumper block W1
as sho n belo :
¢¢¢¢¢
¢¢¢¢¢
I1 I2 B1 B2 E
4. Turn po er ON.
5. Wait for the system to finish one self-test loop, then turn po er OFF
again.
6. Open jumper JP32 and re-enable SCSI BIOS through W1.
7. Replace and secure the system cover.
8. Turn po er ON, pass ord data should be cleared.
Disp ay Type Jumper
Disp ay Type JP16
Video display is VGA, EGA, or
Monochrome.
OPEN
(Default)
Video display is CGA. SHORT
FLASH BIOS Jumper
Page 10 486MIS System Board User's Manual
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