Air 586MI User manual

PREFACE
Thank you for purchasing the 586MI 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 without notice.
This document contains information protected by copyright. ll 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, without prior written 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.
VES is a registered trademark of Video Electronics Standard ssociation.
ll other trademarks used in this manual are the property of their respective owners.
586MI System Board User's Manual Page 1

TABLE OF CONTENTS
CHAPTER 1: INTRODUCTION 4
CHAPTER 2: JUMPERS & CONNECTORS 6
SYSTEM BOARD JUMPERS 6
CPU Frequenc Jumpers 8
VESA Local Bus Jumpers 8
Cache Size Jumpers 9
Clear CMOS Data Jumper 9
Displa T pe Jumper 9
IDE Port Jumpers 10
Parallel Port Jumper 10
FLASH BIOS Jumper 10
SYSTEM BOARD CONNECTORS 11
Green PC Connector 11
Power Suppl Connectors 12
Ke board Connector 13
Power LED and Ke board Lock Connector 13
Speaker Connector 14
Reset Connector 14
Turbo Switch Connector 15
Turbo LED Connector 15
Parallel Port Connector 16
Serial Port 1 & 2 Connectors 16
Flopp Interface Connector 17
IDE Interface Connector 18
Harddisk Activit LED Connector 18
CHAPTER 3: HARDWARE INSTALLATION 19
THE DRAM SIMMs 19
Installing DRAM SIMMs 20
INSTALLING A VL-BUS CARD 21
INSTALLING EXTERNAL I/O CARD 22
EQUIPMENT REQUIRED 23
CHAPTER 4: BIOS SETUP 24
ENTERING SETUP 24
STANDARD CMOS SETUP 26
ADVANCED CMOS SETUP 27
ADVANCED CHIPSET SETUP 29
AUTO CONFIGURATION - BIOS DEFAULTS 30
AUTO CONFIGURATION - POWER-ON DEFAULTS 30
CHANGE PASSWORD 30
AUTO DETECT HARD DISK 31
HARD DISK UTILITY 31
WRITE TO CMOS AND EXIT 32
DO NOT WRITE TO CMOS AND EXIT 32
CHAPTER 5: VL-BUS IDE DRIVERS 33
DOS DRIVER INSTALLATION 33
WINDOWS 3.1 DRIVER INSTALLATION 33
APPENDIX A: KEYBOARD SPEED SWITCH 35
APPENDIX B: AMI BIOS HARD DISK TYPE 36
APPENDIX C: MEMORY MAPPING 37
APPENDIX D: AT I/O ADDRESS MAP 38
APPENDIX E: INTERRUPT ASSIGNMENTS 40
APPENDIX F: SPECIFICATION 41
Page 2 586MI System Board User's Manual

CHAPTER 1: INTRODUCTION
The 586MI system board adds to our product line high integration and cost effective solution without compromising
performance and quality. ll Pentium and Pentium Overdrive CPUs are supported on the 586MI system board. With top
speed at 66MHz and integrated 256K/512K Write-Back cache, the 586MI dramatically boosts system throughput for even
the most demanding applications.
CPU:
·Intel Pentium 60/66MHz and Pentium Overdrives.
Cache Memory:
·Supports 256K and 512K cache memory.
Main Memory:
·Supports 256Kx36, 512Kx36, 1Mx36, 2Mx36, 4Mx36, and 8Mx36 72-pin SIMM modules.
·Up to 128 MBytes on-board memory.
Slots:
·Three VES Local Bus (VL-Bus) Master slots.
·Six 16-bit IS bus slots.
·One 8-bit IS bus slot.
DE Port:
·Turbo/Normal selections for fast or slow IDE hard drives.
·Plug and play, replaces any non-intelligent IDE controller without reformatting the disk drives.
·lthough not required, DOS and Windows 3.1 software drivers are provided for maximizing performance.
586MI System Board User's Manual Page 3

Floppy Disk Controller:
·Fully IBM register set compatible.
·Supports up to two 3.5-inch or 5.25-inch floppy disk drives.
·Supports 360KB / 720KB / 1.2MB / 1.44MB densities.
·Floppy Disk Controller can be disabled.
Peripherals:
·Supports two Serial ports and one Parallel port.
On-Board Battery:
·3.6V/60m on-board battery.
Page 4 586MI System Board User's Manual

CHAPTER 2: JUMPERS & CONNECTORS
When working with the
586M , it is extremely
important that you avoid
static electricity. Always
ground yourself by wearing
a wrist or ankle strap.
Figures 1 on the next page shows the component layout of the 586MI system board with locations of the system board
jumpers and connectors. Note that most jumpers and connectors on the system board are labeled with proper names with
pin 1 marked as '1'. To avoid damaging the board and to have proper operation caution should be taken when connecting
these components.
SYSTEM BOARD JUMPERS
Jumpers are used to select between various operating modes. jumper switch consists of two, three, or four gold pins
projecting from the system board. Placing the plastic jumper cap over two pins connects those pins and makes a
particular selection. Using the cap to cover two pins in this way 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.
FIGURE
586MI System Board User's Manual Page 5

CPU Frequency Jumpers
CPU
FREQUENC
Y
JO1 JO2 JO3
60.000 OPEN SHORT OPEN
66.667 SHORT SHORT OPEN
50.000 OPEN OPEN SHORT
Care should be taken when installing the CPU into the Pin Grid rray (PG ) socket on the system board. Make certain
that pin 1 of the CPU chip is correctly aligned with pin 1 of CPU socket. The location of pin 1 on the CPU is denoted by a
small notch.
VESA Local Bus Jumpers
These jumpers allow any VL-Bus adapter to identify the speed of the system board.
VL-Bus Clock
Speed
JO5 JO6 JO7 JP19
33MHz (Default) SHORT OPEN OPEN OPEN
40MHz OPEN OPEN OPEN SHORT
High Speed Write JP18
System board runs one wait state write transfer. ll VL-
Bus adapters can operate in this mode.
SHORT
(Default)
System board runs zero wait state write transfer. Some
VL-Bus adapters may not be able to run this mode.
OPEN
Page 6 586MI System Board User's Manual

Cache Size Jumpers
Cache Size Jumper Selection
Cache
Size
JP1 JP2 JP3 JP4 JP5 JP6
64KB 1-2 1-2 1-2 OPEN OPEN OPEN
128KB 2-3 2-3 2-3 OPEN OPEN SHORT
256KB 1-2 1-2 1-2 OPEN SHOR
T
SHORT
512KB 2-3 2-3 2-3 SHOR
T
SHOR
T
SHORT
Cache Size and SRAM Locations
Cache
Size
Data Bank 0
U3 to U10
Data Bank 1
U18 to U25
64KB 8Kx8 None
128KB 8Kx8 8Kx8
256KB 32Kx8 None
512KB 32Kx8 32Kx8
Clear CMOS Data Jumper
The CMOS jumper JP15 is used to clear the system configuration data currently stored in the CMOS R M. ll system
setup information (hard disk type, date/time, etc...), stored in the CMOS, will be destroyed. This function would be useful if
you were to forget the user password for the system.
Function JP15
Normal CMOS Operation 2-3
(Default)
Clear CMOS Data 1-2
Display Type Jumper
Display Type JP14
Video display is VG , EG , or
Monochrome.
OPEN
(Default)
Video display is CG . SHORT
586MI System Board User's Manual Page 7

DE Port Jumpers
DE Enable/Disable JP30
Enable on-board VL-Bus IDE port. OPEN
(Default)
Disable on-board VL-Bus IDE port. SHORT
VL-Bus DE Recovery Time JP2
1
JP2
2
JP2
3
Speed 0: High speed IDE hard disk.
(Default Setting)
2-3 2-3 2-3
Speed 1: Medium speed IDE hard disk. 1-2 2-3 2-3
Speed 2: Slow speed IDE hard disk. 2-3 1-2 2-3
Parallel Port Jumper
Parallel Port JP32
Select interrupt line IRQ7 for Parallel port. 1-2
(Default)
Select interrupt line IRQ5 for Parallel port. 2-3
FLASH B OS Jumper
FLASH B OS Control JP13
Disable FL SH (optional) programming.
This is normal operation.
OPEN
(Default)
Enable FL SH BIOS programming.
Contents of system board BIOS can be re-
programmed.
2-3
Page 8 586MI System Board User's Manual

SYSTEM BOARD CONNECTORS
Green PC Connector
The Green PC connector can be used for power saving. Green PC feature is optional and can be enabled with special
Megakey keyboard controller and BIOS.
Descriptions W1
pins
W1
pins
Descriptions
No Connection.
1 6
Keyboard P12 to
control video card
VSYNC. This pin
should be connected
to pin 12 of VG
Feature connector.
Keyboard P12 to
enable/disable video
signals. This pin
should be connected to
pin 18 of VG Feature
connector.
2 7
Keyboard P13 to
control video card
HSYNC. This pin
should be connected
to pin 11 of VG
Feature connector.
Keyboard P13
(General Purpose).
When this pin is at low
level, it can switch
other system device to
stand-by mode for
saving power.
3 8
No Connection.
Keyboard P15
(General Purpose).
When this pin is at low
level, it can switch
other system device to
stand-by mode for
saving power.
4 9
No Connection.
Ground 5 10 No Connection.
586MI System Board User's Manual Page 9

Power Supply Connectors
The two Power Supply connectors are 6-pin T standard power connectors. Most power supplies have two six-wire
connectors, two of the wires on each connector are black. lign the two six-wire connectors so that the two black wires on
each connector are in the middle as shown below.
Pin Connector PS1 Connector PS2
1 Power Good Ground
2 +5 VDC Ground
3 +12 VDC -5 VDC
4 -12 VDC +5 VDC
5 Ground +5 VDC
6 Ground +5 VDC
Page 10 586MI System Board User's Manual