DFI 586STEG User manual (REV. A+)

586STEG

Rev. A+
System Board
User’s Manual

34671027

1

586STEG System Board User’s Manual
Copyright

This publication contains information that is protected by copyright.
No part of it may be reproduced in any form or by any means or
used to make any transformation/adaptation without the prior written
permission from the copyright holders.

This publication is provided for informational purposes only. The
manufacturer makes no representations or warranties with respect to
the contents or use of this manual and specifically disclaims any express
or implied warranties of merchantability or fitness for any particular
purpose. The user will assume the entire risk of the use or the results
of the use of this document. Further, the manufacturer reserves the
right to revise this publication and make changes to its contents at any
time, without obligation to notify any person or entity of such revisions
or changes.

All Rights Reserved.

Trademarks

Microsoft® MS-DOS®, WindowsTM and Windows® 95 are registered
trademarks of Microsoft Corporation. Intel and Pentium are registered
trademarks of Intel Corporation. Cyrix, 6x86, 6x86L and 6x86MX
are registered trademarks of Cyrix Corporation. AMD, K5 and K6
are registered trademarks of Advanced Micro Devices, Inc. IBM is a
registered trademark of International Business Machine Corporation.
Award is a registered trademark of Award Software, Inc. Other
trademarks and registered trademarks of products appearing in this
manual are the properties of their respective holders.

Caution:
Danger of explosion if battery incorrectly replaced.
Replace only with the same or equivalent type recommended by the
manufacturer.
Dispose of used batteries according to the battery manufacturer’s
instructions.

2

Introduction

FCC and DOC Statement on Class B

This equipment has been tested and found to comply with the
limits for a Class B digital device, pursuant to Part 15 of the FCC
rules. These limits are designed to provide reasonable protection
against harmful interference when the equipment is operated in a
residential installation. This equipment generates, uses and can
radiate radio frequency energy and, if not installed and used in
accordance with the instruction manual, may cause harmful
interference to radio communications. However, there is no
guarantee that interference will not occur in a particular installation.
If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the
equipment off and on, the user is encouraged to try to correct
the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and the
receiver.

• Connect the equipment into an outlet on a circuit different
from that to which the receiver is connected.

• Consult the dealer or an experienced radio TV technician for
help.

1

Notice:

1. The changes or modifications not expressly approved by the
party responsible for compliance could void the user's
authority to operate the equipment.

2. Shielded interface cables must be used in order to comply
with the emission limits.

3

Table of Contents

Chapter 1 - System Introduction

Introduction.....................................................................................................................................

Unpacking Your System........................................................................................................

System Features..........................................................................................................................

The Front Panel..........................................................................................................................

The Rear Panel............................................................................................................................

Footstand.........................................................................................................................................

IDE Device Drivers.................................................................................................................

Chapter 2 - Award BIOS Setup Utility

The Basic Input/Output System..................................................................................

Standard CMOS Setup.......................................................................................................

BIOS Features Setup.............................................................................................................

Chipset Features Setup.......................................................................................................

Power Management Setup...............................................................................................

PNP/PCI Configuration........................................................................................................

Load Fail-Safe Settings..........................................................................................................

Load Optimal Settings.........................................................................................................

Integrated Peripherals............................................................................................................

Supervisor Password.............................................................................................................

User Password............................................................................................................................

IDE HDD Auto Detection...............................................................................................

HDD Low Level Format...................................................................................................

Save & Exit Setup.....................................................................................................................

Exit Without Saving.................................................................................................................

6
6

7
10
11
12
12

14
14
18
22
23
26
27
28
28
30
31
31
32
33
33

Chapter 3 - System Expansion

Installing Add-on Cards.......................................................................................................

Installing Drives............................................................................................................................

35
38

Chapter 4 - Upgrade Guide

System Memory Upgrade Information.................................................................

Cache Memory Upgrade Information...................................................................

Processor Upgrade Information..................................................................................

Jumper Settings for CMOS Clear..............................................................................

Appendix A - Installation Instructions

Static Electricity Precautions..............................................................................................

Basic Installation Steps..........................................................................................................

Appendix B - Connecting Cables

Connecting the Floppy Disk Drive Cable.........................................................

Connecting the IDE Disk Drive Cable.................................................................

Connecting the Universal Serial Bus Ports........................................................

Appendix C - System Board Layout

System Board Layout............................................................................................................

Appendix D - SIM Modules

Types of Modules......................................................................................................................

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50
50
59

61
61

69
69
71

74

76

Appendix E - Desktop Management Interface

Desktop Management Interface..................................................................................

Appendix F - Troubleshooting

Troubleshooting Checklist..................................................................................................

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586STEG System Board User’s Manual

CHAPTER

Introduction

6

Features and Specifications

Processor Upgrade

Introduction

1

The system board is equipped with a 321-pin ZIF socket (Intel
Socket 7). This socket is designed for easy removal of an old
processor and easy insertion of an upgrade processor. The system
board supports the following processors.

• Intel Pentium processor with MMXTM technology - 166/200/
233MHz

• Intel Pentium 90/100/120/133/150/166/200MHz

• Cyrix/IBM 6x86L and 6x86MX PR150+/PR166+/PR200+

- Linear burst mode supported

• AMD K5 PR90/PR100/PR120/PR133/PR166

• AMD K6-166, K6-200, K6-233

Chipset

• SiS 5571 (Trinity) single chip solution

System Memory

The system board supports 8MB to 256MB of memory. It is
equipped with four SIMM sockets. The 72-pin SIMM sockets use
EDO or fast page mode, 60ns or 70ns, x32 DRAM, 5V.

Cache Memory



• 256KB or 512KB pipeline/linear burst, direct map write-back
cache installed on the system board

BIOS

• Award BIOS, Windows 95 Plug and Play compatible

• Flash EPROM for easy BIOS upgrades

• Supports DMI function

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586STEG System Board User’s Manual

Energy Efficient Design

• System power management supported

• CPU stopped clock control

• Hardware supports SMI green mode

• Microsoft®/Intel® APM 1.2 compliant

• External power management switch supported

PCI IDE Interface

• Two PCI IDE interfaces support up to four IDE devices

• PIO Mode 3 and Mode 4 Enhanced IDE (data transfer rate up
to 16.6MB/sec.)

• DMA Mode 2 Bus Master IDE (data transfer rate up to

22.2MB/sec.)

• Bus mastering reduces CPU utilization during disk transfer

• ATAPI CD-ROM supported

• LS-120 and ZIP supported

FDD Interface

• One floppy drive interface supports 360KB, 720KB, 1.2MB,

1.44MB, and 2.88MB floppy drives.

Onboard I/O

• Two NS16C550A-compatible serial ports

• One SPP/ECP/EPP parallel port

• One PS/2 mouse port

• One PS/2 or AT keyboard port

USB Ports

The system board is equipped with a header for external USB
(Universal Serial Bus) ports. USB allows data exchange between
your computer and a wide range of simultaneously accessible
peripherals. Refer to Appendix B for instructions on connecting
the USB ports.

8

Introduction

IrDA Interface

The system board is equipped with an IrDA connector for
wireless connectivity between your computer and peripheral
devices.

Expansion Slots

The system board is equipped with 3 dedicated PCI slots, 2
dedicated 16-bit ISA slots and 1 shared PCI/ISA slot. All PCI slots
are bus masters.

IDE Device Drivers

To install the IDE drivers supported by your system board, please
refer to the “Readme” file contained in the provided diskette.

All steps or procedures to install software drivers are subject to
change without notice as the softwares are occassionally updated.
Please refer to the readme files for the latest information.

1

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586STEG System Board User’s Manual

Package Checklist

The system board package contains the following items:

• The system board

• The user’s manual

• Serial, mouse and printer port cables

Option 1:

- One card-edge bracket with a 9-pin and 25-pin serial port

cables

- One card-edge bracket with a 25-pin printer port cable

and a PS/2 mouse port cable

Option 2:

- One card-edge bracket with two 9-pin serial port cables

and a PS/2 mouse port cable

- One 25-pin printer port cable for chassis mounting

• One 40-pin IDE hard disk cable

• One 34-pin floppy disk drive cable

• One IDE driver diskette

• Five spare jumpers

• One card-edge bracket with two USB ports (optional)

If any of these items are missing or damaged, please contact your
dealer or sales representative for assistance.

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CHAPTER

Award BIOS Setup Utility

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586STEG System Board User’s Manual

The Basic Input/Output System

The Basic Input/Output System (BIOS) is a program that takes care
of the most basic level of communication between the processor and
peripherals. This chapter explains the Setup Utility for the Award BIOS.

After you power up your system, the BIOS message appears on your
screen and the memory count begins. After the memory test, the
following message will appear on the screen:

Press DEL to enter setup

If the message disappears before you respond, restart your system or
press the “Reset” button. You may also restart the system by pressing
the <Ctrl> <Alt> and <Del> keys simultaneously.

When you press <Del>, the main program screen will appear.

ROM PCI/ISA BIOS

CMOS SETUP UTILITY

AWARD SOFTWARE, INC.

STANDARD CMOS SETUP
BIOS FEATURES SETUP
CHIPSET FEATURES SETUP
POWER MANAGEMENT SETUP
PNP/PCI CONFIGURATION
LOAD FAIL-SAFE SETTINGS
LOAD OPTIMAL SETTINGS

:Quit

ESC

:Save & Exit Setup

F10

Time, Date, Hard Disk Type...

INTEGRATED PERIPHERALS
SUPERVISOR PASSWORD
USER PASSWORD
IDE HDD AUTO DETECTION
HDD LOW LEVEL FORMAT
SAVE & EXIT SETUP
EXIT WITHOUT SAVING

↑↓→←

(Shift) F2

:Select Item
:Change Color

Standard CMOS Setup

Use the arrow keys to highlight “Standard CMOS Setup” and press
<Enter>. A screen similar to the one on the next page will appear.

12

Award BIOS Setup Utility

ROM PCI/ISA BIOS
STANDARD CMOS SETUP
AWARD SOFTWARE, INC.

Date (mm:dd:yy) : Sun, Sep 8 1996
Time (hh:mm:ss) : 9 : 18 : 582

HARD DISKS
Primary Master
Primary Slave
Secondary Master
Secondary Slave

DriveA :1.44M, 3.5in.
DriveB :None
Video :EGA/VGA
Halt on :All Errors

ESCF1:Quit

:Help

TYPE
:Auto
:Auto
:Auto
:Auto

SIZE

0
0
0
0

(Shift)F2

CYLS

↑↓→←

0
0
0
0

PRECOMP

HEAD

0
0
0
0

:Select Item
:Change

LANDZ

0

0

0

0

0

0

0

0

Base Memory : 640K

Extended Memory : 31744K
Other Memory : 384K

Total Memory : 32768K

PU/PD/+/- : Modify

The settings on the screen are for reference only. Your version may not be
identical to this one.

Date
The date format is <day>, <month>, <date>, <year>. Day displays

a day, from Sunday to Saturday. Month displays the month, from
January to December. Date displays the date, from 1 to 31. Year
displays the year, from 1994 to 2079.

Time

SECTOR

0
0
0
0

MODE

Auto
Auto
Auto
Auto

2

The time format is <hour>, <minute>, <second>. The time is based
on the 24-hour military-time clock. For example, 1 p.m. is 13:00:00.
Hour displays hours from 00 to 23. Minute displays minutes from 00
to 59. Second displays seconds from 00 to 59.

Primary Master, Primary Slave, Secondary Master and Secondary Slave
These categories allow you to enter the appropriate specifications for

the type of hard disk drive(s) installed in your system. There are 45
predefined types and 4 user definable types for hard drives. Type 1 to
Type 45 are predefined. Type “User” is user-definable.

Press <PgUp> or <PgDn> to select a numbered hard disk type or
type the number and press <Enter>. The hard disk will not work
properly if you enter improper information for this category.

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586STEG System Board User’s Manual

You can use Type “User” to define your own drive type manually. This
information should be included in the documentation from your hard
disk vendor or the system manufacturer.

If the controller of the HDD interface is ESDI, you must select “Type
1”. If the controller of the HDD interface is SCSI, you must select
“None”.

If you select Type ”Auto”, the BIOS will auto-detect the HDD &
CD-ROM drive at the POST stage and show the IDE for the HDD
& CD-ROM drive. If a hard disk has not been installed, select “None”
and press <Enter>.

Drive A and Drive B
These categories identify the types of floppy disk drives installed. The

options for drive A and B are:

None No floppy drive is installed
360K, 5.25 in. 5-1/4 in. PC-type standard drive; 360KB capacity

1.2M, 5.25 in. 5-1/4 in. AT-type high-density drive; 1.2MB capacity
720K, 3.5 in. 3-1/2 in. double-sided drive; 720KB capacity

1.44M, 3.5 in. 3-1/2 in. double-sided drive; 1.44MB capacity

2.88M, 3.5 in. 3-1/2 in. double-sided drive; 2.88MB capacity

Note:

Choosing an incorrect type might cause your system to format
the floppy disk improperly and you cannot access your data.

Video
This category selects the type of video adapter used for the primary

system monitor. Although secondary monitors are supported, you do
not have to select the type in Setup. The default setting is EGA/VGA
(BIOS default, Setup default).

EGA/VGA Enhanced Graphics Adapter/Video Graphics Array. For

EGA, VGA, SVGA and PGA monitor adapters.

CGA 40 Color Graphics Adapter. Power up in 40-column mode.
CGA 80 Color Graphics Adapter. Power up in 80-column mode.
Mono Monochrome adapter. Includes high resolution

monochrome adapters.

14

Award BIOS Setup Utility

Halt On
This category determines whether the system will stop if an error is

detected during power up. The default setting is All Errors (BIOS
default, Setup default).

No Errors The system boot will not stop for any errors detected.
All Errors The system boot will stop whenever the BIOS detects

a non-fatal error.

All, But Keyboard The system boot will not stop for a keyboard

error; it will stop for all other errors.

All, But Diskette The system boot will not stop for a disk error;

it will stop for all other errors.

All, But Disk/Key The system boot will not stop for a disk or

keyboard error; it will stop for all other errors.
Memory
The base memory size, extended memory size and the other memory

size cannot be altered; your computer automatically detects and displays
them.

Base Memory The POST will determine the amount of base (or

conventional) memory installed in the system. The
value of the base memory is typically 512K for
systems with 512K memory installed on the
motherboard or 640K for systems with 640K or
more memory installed on the motherboard.

2

Extended Memory The BIOS determines how much extended

memory is present during the POST. This is the
amount of memory located above 1MB in the
CPU’s memory address map.

Other Memory This refers to the memory located in the 640K to

1024K address space. This is the memory that can
be used for different applications. DOS uses this
area to load device drivers in an effort to keep as
much base memory free for application programs.
The BIOS is the most frequent user of this RAM
area since this is where it shadows the ROM.

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586STEG System Board User’s Manual

BIOS Features Setup

The BIOS Features Setup allows you to configure your system for basic
operation. Some entries are defaults required by the system board,
while others, if enabled, will improve the performance of your system
or let you set some features according to your preference.

ROM PCI/ISA BIOS

BIOS FEATURES SETUP

AWARD SOFTWARE, INC.

Virus Warning
CPU Internal Cache
External Cache
Quick Power On Self Test
Boot Sequence
Swap Floppy Drive
Boot Up Floppy Seek
Boot Up NumLock Status
Typematic Rate Setting
Typematic Rate (Chars/Sec)
Typematic Delay (Msec)
Security Option
PCI/VGA Palette Snoop
OS Select For DRAM>64MB

The settings on the screen are for reference only. Your version may not be
identical to this one.

: Disabled
: Enabled
: Enabled
: Enabled
: A, C
: Disabled
: Disabled
: On
: Disabled
: 6
: 250
: Setup
: Disabled
: Non-OS2

Video BIOS Shadow
C8000-CBFFF Shadow
CC000-CFFFF Shadow
D0000-D3FFF Shadow
D4000-D7FFF Shadow
D8000-DBFFF Shadow
DC000-DFFFF Shadow

ESC

:Quit

F1

:Help

F5

:Old Values

F6

:Load Fail-Safe Settings

F7

:Load Optimal Settings

↑↓→←

PU/PD/+/­(Shift) F2

: Enabled
: Disabled
: Disabled
: Disabled
: Disabled
: Disabled
: Disabled

:Select Item
:Modify
:Color

Virus Warning
This category protects the boot sector and partition table of your hard

disk drive. When this item is enabled, the Award BIOS will monitor the
boot sector and partition table of the hard disk drive. If an attempt
is made to write to the boot sector or partition table of the hard disk
drive, the BIOS will halt the system and an error message will appear.

After seeing the error message, if necessary, you will be able to run
an anti-virus program to locate and remove the problem before any
damage is done.

Many disk diagnostic programs which attempt to access the boot
sector table will cause the warning message to appear. If you are
running such a program, we recommend that you first disable this
category. Also, disable this category if you are installing or running
certain operating systems like Windows® 95 or the operating system
may not install nor work.

16

Award BIOS Setup Utility

CPU Internal Cache and External Cache
These categories speed up the memory access. The default value is

enabled. Enable the External Cache for better performance.
Quick Power On Self Test
This category speeds up Power On Self Test (POST) after you power

on your system. If it is set to Enabled, the BIOS will shorten or skip
some check items during POST.

Boot Sequence
This category determines which drive to search first for the disk

operating system (i.e. DOS). The default is A, C, SCSI.
The options are:

A, C, SCSI; C, A, SCSI; C, CDROM, A; CDROM, C, A;
D, A, SCSI; E, A, SCSI; F, A, SCSI; SCSI, A, C;
SCSI, C, A; C only; LS/ZIP, C.

Swap Floppy Drive
When this option is enabled and the system is booting from the floppy

drive, the system will boot from drive B instead of drive A. When this
option is disabled and the system is booting from the floppy drive, the
system will boot from drive A.

2

Boot Up Floppy Seek
When enabled, the BIOS will check whether the floppy disk drive installed

is 40 or 80 tracks. Note that the BIOS cannot distinguish between 720K,

1.2M, 1.44M and 2.88M drive types as they are all 80 tracks. When
disabled, the BIOS will not search for the type of floppy disk drive by
track number. Note that there will not be any warning message if the drive
installed is 360KB.

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586STEG System Board User’s Manual

Boot Up NumLock Status
This allows you to determine the default state of the numeric keypad.

By default, the system boots up with NumLock on wherein the function
of the numeric keypad is the number keys. When set to Off, the
function of the numeric keypad is the arrow keys.

Typematic Rate Setting
When disabled, continually holding down a key on your keyboard will

cause the BIOS to report that the key is down. When the typematic
rate is enabled, the BIOS will not only report that the key is down,
but will first wait for a moment, and, if the key is still down, it will begin
to report that the key has been depressed repeatedly. For example,
you would use such a feature to accelerate cursor movements with
the arrow keys.

Typematic Rate (Chars/Sec)
This selection allows you to select the rate at which the keys are

accelerated.
Typematic Delay (Msec)
This selection allows you to select the delay between when the key

was first depressed and when the acceleration begins.
Security Option

System The system will not boot and access to Setup will be

denied if the correct password is not entered at the
prompt.

Setup The system will boot, but access to Setup will be denied

if the correct password is not entered at the prompt.
PCI/VGA Palette Snoop
It determines whether the MPEG ISA/VESA VGA Cards can work with

PCI/VGA or not. The default value is Disabled.

Enabled PCI/VGA working with MPEG ISA/VESA VGA cards.
Disabled PCI/VGA not working with MPEG ISA/VESA VGA cards.

18

Award BIOS Setup Utility

OS Select for DRAM > 64MB
This item allows you to access the memory that is over 64MB in

OS/2. The options are: Non-OS/2 and OS/2.
Video BIOS Shadow
Determines whether video BIOS will be copied to RAM. Video Shadow

will increase the video speed. Note that some graphics boards require
that this option be disabled. The default value is Enabled.

Enabled Video shadow is enabled.
Disabled Video shadow is disabled.

C8000-CBFFF Shadow to DC000-DFFFF Shadow
These categories determine whether option ROMs will be copied to

RAM.

Enabled Optional shadow is enabled.
Disabled Optional shadow is disabled.

2

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586STEG System Board User’s Manual

Chipset Features Setup

ROM PCI/ISA BIOS

CHIPSET FEATURES SETUP

AWARD SOFTWARE, INC.

DRAM Loading
System BIOS Cacheable
Video BIOS Cacheable
Memory Hole at 15M-16M

: Normal
: Enabled
: Enabled
: Disabled

ESC

:Quit

F1

:Help

F5

:Old Values

F6

:Load Fail-Safe Settings

F7

:Load Optimal Settings

↑↓→←

PU/PD/+/­(Shift) F2

:Select Item
:Modify
:Color

The settings on the screen are for reference only. Your version may not be
identical to this one.

This section gives you functions to configure the system based on the
specific features of the chipset. The chipset manages bus speeds and
access to system memory resource, such as DRAM and external cache.
It also coordinates communications between the conventional ISA bus
and the PCI bus. These items should not be altered unless necessary.
Depending on your add-in boards, you may not or should not enable
some of those features. The default settings have been chosen because
they provide the best operating conditions for your system.

20

Award BIOS Setup Utility

Power Management Setup

The Power Management Setup allows you to configure your system to
most effectively save energy.

ROM PCI/ISA BIOS

POWER MANAGEMENT SETUP

AWARD SOFTWARE, INC.

Power Management : User Define
PM Control by APM : Yes
Video Off Option : Suspend -> Off
Video Off Method : V/H SYNC+Blank
MODEM Use IRQ : 3

HDD Off After : Disable
Doze Mode : Disable
Standby Mode : Disable
Suspend Mode : Disable

COM Ports Activity : Enabled
LPT Ports Activity : Disabled
HDD Ports Activity : Disabled
VGA Activity : Disabled

** PM Timers **

** PM Events **

The settings on the screen are for reference only. Your version may not be
identical to this one.

Power Management

IRQ3 (COM 2)
IRQ4 (COM 1)
IRQ5 (LPT 2)
IRQ6 (Floppy Disk)
IRQ7 (LPT 1)
IRQ8 (RTC Alarm)
IRQ9 (IRQ2 Redir)
IRQ10(Reserved)
IRQ11(Reserved)
IRQ12 (PS/2 Mouse)
IRQ13 (Coprocessor)
IRQ14 (Hard Disk)
IRQ15 (Reserved)

ESC

:Quit

F1

:Help

F5

:Old Values

F6

:Load Fail-Safe Settings

F7

:Load Optimal Settings

↑↓→←

PU/PD/+/­(Shift) F2

: Enabled
: Enabled
: Enabled
: Enabled
: Enabled
: Disabled
: Enabled
: Enabled
: Enabled
: Enabled
: Enabled
: Disabled
: Disabled

:Select Item
:Modify
:Color

2

This category allows you to select the type (or degree) of power saving
by changing the length of idle time that elapses before each of the
following modes are activated: Doze mode, Standby mode, and
Suspend mode.

Disable No power management. Disables the Doze, Standby and

Suspend modes.

Min. Power Saving Minimum power management. Doze Mode = 40

min., Standby Mode = 40 min., and Suspend Mode
= 40 min.

Max. Power Saving Maximum power management. Doze Mode =

20 sec., Standby Mode = 20 sec., and Suspend
Mode = 20 sec.

User Defined Allows you to set each mode individually. When

enabled, each option ranges from 20 sec. to 40 min.

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586STEG System Board User’s Manual

PM Control by APM

Yes An Advanced Power Management device will be activated to

enhance the Max. Power Saving mode and stop the CPU’s in­ternal clock. Use this option in Windows® 95. (default)

No The system BIOS will ignore APM when initiating the Power

Management mode.

Video Off Option

Always On The system BIOS will never turn off the screen.
Suspend -> Off The screen is off when the system is in the

Suspend mode.

Susp, Stby -> Off The screen is off when the system is in the

Standby or Suspend mode.

All Modes -> Off The screen is off when the system is in the Doze,

Standby or Suspend mode.
Video Off Method
This determines the manner in which the monitor is blanked.

V/H SYNC + Blank This selection will cause the system to turn off

the vertical and horizontal synchronization ports
and write blanks to the video buffer.

Blank Screen This option only writes blanks to the video buffer.
DPMS Initializes display power management signaling. Use

this option if your video board supports it.
MODEM Use IRQ
This category is used to set an IRQ channel (IRQ 3, 4, 5, 7, 9, 10 or

11) for the modem installed in your system.
HDD Off After
This is user configurable only when the Power Management category

is set to User Defined. When enabled and after the set time of system
inactivity, the hard disk drive will be powered down while all other
devices remain active.

22

Award BIOS Setup Utility

Doze Mode
This is user configurable only when the Power Management category

is set to User Defined. When enabled and after the set time of system
inactivity, the CPU clock will run at a slower speed (1/2 of full speed)
while all other devices still operate at full speed.

Standby Mode
This is user configurable only when the Power Management category

is set to User Defined. When enabled and after the set time of system
inactivity, the CPU clock will run at a speed slower than the speed
during Doze mode (1/3 of full speed) while all other devices still op­erate at full speed.

Suspend Mode
This is user configurable only when the Power Management category

is set to User Defined. When enabled and after the set time of system
inactivity, the CPU and onboard peripherals will be shut off.

PM Events and IRQ3-IRQ15
When enabled, access to the specified IRQ will cause the system to

wake up completely from the power management mode. When
disabled, the system will not wake up from the power management
mode despite access to the specified IRQ.

2

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586STEG System Board User’s Manual

PNP/PCI Configuration

This section describes configuring the PCI bus system. It covers some
very technical items and it is strongly recommended that only
experienced users should make any changes to the default settings.

ROM PCI/ISA BIOS

PNP/PCI CONFIGURATION

AWARD SOFTWARE, INC.

Resources Controlled By
Reset Configuration Data

:Auto
:Disabled

PCI IRQ Actived By : Level
PCI IDE 2nd Channel : Disabled
PCI IDE IRQ Map To : PCI-AUTO
Primary IDE INT# : A
Secondary IDE INT# : B

ESC

:Quit

F1

:Help

F5

:Old Values

F6

:Load Fail-Safe Settings

F7

:Load Optimal Settings

The settings on the screen are for reference only. Your version may not be
identical to this one.

↑↓→←

PU/PD/+/­(Shift) F2

:Select Item
:Modify
:Color

Resources Controlled By
The Award Plug and Play BIOS has the capacity to automatically

configure all of the boot and Plug and Play compatible devices.

Auto The system will automatically detect the settings for you.

The categories that follow will not be shown on the screen.

Manual This will allow you to set the IRQ/DMA (you have

assigned your add-in card) to Legacy ISA or PCI/ISA PnP.
For non-PnP ISA cards, select Legacy ISA. For PnP ISA or
PCI cards, select PCI/ISA PnP.

Reset Configuration Data

Enabled The BIOS will reset the configuration data once

automatically.

Disabled The BIOS will not reset the configuration data.

24

Award BIOS Setup Utility

PCI IRQ Actived By
This category is used to set the method by which the PCI bus

recognizes that an IRQ service is being requested by a device. Under
all circumstances, you should retain the default configuration unless a
different setting is needed.

PCI IDE 2nd Channel
This allows you to designate an IDE controller card inserted into one

of the PCI slots as your secondary IDE controller.

Enabled The IDE controller card is designated as the secondary

IDE controller.

Disabled No IDE controller card occupying any of the PCI slots.
PCI IDE IRQ Map To
This category is used to configure your system to the type of IDE disk

controller in use.

PCI-Auto The system will scan and determine the PCI slot that is

installed with an IDE controller card.

ISA Designates the ISA slot that is installed with an IDE

controller card; that is, if you are using an IDE controller card.

2

Primary IDE INT# and Secondary IDE INT#
The Primary and Secondary IDE INT# categories are used to select

the PCI interrupt (A, B, C, or D) that is associated with the connected
hard drives.

Load Fail-Safe Settings

The “Load Fail-Safe Settings” option loads the troubleshooting default
values permanently stored in the ROM chips. These settings are not
optimal and turn off all high performance features. You should use these
values only if you have hardware problems. Highlight this option on the
main menu and press <Enter>. The message below will appear.

Load Fail-Safe Settings (Y/N)? N

If you want to proceed, type <Y> and press <Enter>. The default
settings will be loaded.

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586STEG System Board User’s Manual

Load Optimal Settings

The “Load Optimal Settings” option loads optimized settings from the
BIOS ROM. Use the Setup default values as standard values for your
system.

Highlight this option on the main menu and press <Enter>. The
message below will appear.

Load Optimal Settings (Y/N)? N

Type <Y> and press <Enter> to load the Setup default values.

Integrated Peripherals

ROM PCI/ISA BIOS

INTEGRATED PERIPHERALS

AWARD SOFTWARE, INC.

Internal PCI/IDE
IDE Primary Master PIO
IDE Primary Slave PIO
IDE Secondary Master PIO
IDE Secondary Slave PIO

Onboard FDC Controller
Onboard Serial Port 1
Onboard Serial Port 2
Infra Red (IR) Function

Onboard Parallel Port
Parallel Port Mode

IR Transfer Mode
USB Controller

: Both
: AUTO
: AUTO
: AUTO
: AUTO

: Enabled
: COM1/3F8
: COM2/2F8
: Disabled

: 378/IRQ7
: SPP

: Half-Dup
: Disabled

ESC

:Quit

F1

:Help

F5

:Old Values

F6

:Load Fail-Safe Settings

F7

:Load Optimal Settings

↑↓→←

PU/PD/+/­(Shift) F2

:Select Item
:Modify
:Color

The settings on the screen are for reference only. Your version may not be
identical to this one.

Internal PCI/IDE

Both Enables the primary and secondary IDE controller.
Primary Enables the primary IDE controller.
Secondary Enables the secondary IDE controller.

26

Award BIOS Setup Utility

IDE Primary Master/Slave PIO and IDE Secondary Master/Slave
PIO

PIO means Programmed Input/Output. Rather than have the BIOS
issue a series of commands to effect a transfer to or from the disk
drive, PIO allows the BIOS to tell the controller what it wants and
then let the controller and the CPU perform the complete task by
themselves. Your system supports five modes, 0 (default) to 4, which
primarily differ in timing. When Auto is selected, the BIOS will select the
best available mode after checking your drive.

Auto The BIOS will automatically set the system according to your

hard disk drive’s timing.

0-4 You can select a mode that matches your hard disk drive’s

timing. Caution: Do not use the wrong setting or you will
have drive errors.

Onboard FDC Controller

Enabled Enables the onboard floppy disk controller.

Disabled Disables the onboard floppy disk controller.

Onboard Serial Port 1 and Onboard Serial Port 2

2

Auto The system will automatically select an I/O address for the

onboard serial port 1 and serial port 2.

COM1 to COM4 Allows you to manually select an I/O address for

the onboard serial port 1 and serial port 2.

Disabled Disables the onboard serial port 1 and/or serial port

2.
Infra Red (IR) Function
The system board supports IrDA function for wireless connectivity

between your computer and peripheral devices.
You may not use IrDA (J2) and the COM 2 serial port at the same

time. If you are using the COM 2 serial port, make sure “Infra Red
(IR) Function” is set to Disabled.

To use the IrDA function, follow the steps below.

1. Connect your IrDA cable to connector J2 on the system
board.

27

2

586STEG System Board User’s Manual

2. Set “Infra Red (IR) Function” to the type of IrDA standard
supported by your IrDA peripheral/device (HPSIR or
ASKIR).

Onboard Parallel Port

378H/IRQ7, 3BCH/IRQ7, 278H/IRQ5 Selects the I/O address

and IRQ for the onboard parallel port.

Disabled Disables the onboard parallel port.
Parallel Port Mode
Selects the parallel port mode according to the type of printer

device connected to your onboard parallel port. The parallel modes
are SPP, EPP, ECP and EPP/ECP.

IR Transfer Mode

Half-Dup Data is completely transmitted before receiving data.

Full-Dup Transmits and receives data simultaneously.

USB Controller
By default, the USB controller is Disabled. To use the USB inter-

face, set this option to Enabled. Refer to Appendix B for instruc­tions on connecting the USB ports.

Supervisor Password

If you want to protect your system and setup from unauthorized
entry, set a supervisor’s password with the “System” option selected
in the BIOS Features Setup.

If you want to protect access to setup only, but not your system,
set a supervisor’s password with the “Setup” option selected in the
BIOS Features Setup. You will not be prompted for a password
when you cold boot the system.

Use the arrow keys to highlight the “Supervisor Password” option
and press <Enter>. The message below will appear.

Enter Password:

28

Award BIOS Setup Utility

Type in the password. You are limited to eight characters. When
done, the message below will appear:

Confirm Password:

You are asked to verify the password. Type in exactly the same
password. If you type in a wrong password, you will be prompted to
enter the correct password again. To delete or disable the password
function, highlight “Supervisor Password” and press <Enter>, instead of
typing in a new password. Press the <Esc> key to return to the
main menu.

User Password

If you want another user to have access only to your system but
not to setup, set a user’s password with the “System” option
selected in the BIOS Features Setup.

If you want a user to enter a password when trying to access setup,
set a user’s password with the “Setup” option selected in the BIOS
Features Setup. Using user’s password to enter Setup allows a user
to access only the “User Password” option that appears on the main
screen. Access to all other options is denied.

2

To set, confirm, verify, disable or delete a user’s password, follow the
procedures described in the section “Supervisor Password”. If you
forget your password, refer to the procedure described in the same
section.

29

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586STEG System Board User’s Manual

IDE HDD Auto Detection

Use this option to detect the parameters for the hard disk drives
installed in your system. These parameters will then be automatically
entered into the "Standard CMOS Setup". The IDE HDD Auto
Detection screen displays the following categories of information: Size,
Cylinders, Heads, Precomp, LandZone, Sectors and Mode.

ROM PCI/ISA BIOS

CMOS SETUP UTILITY

AWARD SOFTWARE, INC.

HARD DISKS TYPE SIZE CYLS HEAD RECOMP LANDZ SECTOR MODE

Primary Master:

Select Primary Master Option (N=Skip): N

OPTIONS SIZE CYLS HEAD PRECOMP LANDZ SECTOR MODE
2 (Y) 853 827 32 0 1653 63 LBA

1 853 1654 16 65535 1653 63 Normal
3 853 827 32 65536 1653 63 Large

Note: Some OS (like SCO-UNIX) must be “NORMAL” for installation

ESC: Skip

The settings on the screen are for reference only. Your version may not be
identical to this one.

30

Award BIOS Setup Utility

HDD Low Level Format

The HDD Low Level Format is designed as a tool to save you time
formatting your hard disk. It automatically looks for the necessary
information of the drive you selected. This utility also searches for bad
tracks and lists them for your reference. Highlight this option and press
<Enter>. A screen similar to the one below will appear.

The settings on the screen are for reference only. Your version may not be
identical to this one.

2

Warning:

Do not use this HDD Low Level Format feature for IDE hard
drives. They already have been low-level formatted at the factory.
Do a high-level format only for those drives. Refer to the manual
that comes with your operating system.

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586STEG System Board User’s Manual

Save & Exit Setup

When all the changes have been made, highlight “Save & Exit Setup”
and press <Enter>. The message below will appear:

Save to CMOS and Exit (Y/N)? N

Type “Y” and press <Enter>. The modifications you have made will be
written into the CMOS memory, and the system will reboot. You will
once again see the initial diagnostics on the screen. If you wish to make
additional changes to the setup, press <Ctrl> <Alt> <Esc>
simultaneously or <Del> after memory testing is done.

Exit Without Saving

When you do not want to save the changes you have made, highlight
“Exit Without Saving” and press <Enter>. The message below will
appear:

Quit Without Saving (Y/N)? N

Type “Y” and press <Enter>. The system will reboot and you will once
again see the initial diagnostics on the screen. If you wish to make any
changes to the setup, press <Ctrl> <Alt> <Esc> simultaneously or
<Del> after memory testing is done.

32

CHAPTER

Upgrade Guide

3

586STEG System Board User’s Manual

System Memory Upgrade Information

The system board can
support 8MB to 256MB of
memory using 1MBx32,
2MBx32, 4MBx32, 8MBx32,
or 16MBx32 72-pin SIMMs.

The SIMM (Single In-line
Memory Module) sockets
are divided into two banks
on the system board, Bank
0 and Bank 1. Each bank
consists of 2 SIMM sockets. You will need either 2 or 4 pieces of
SIM modules, depending on the amount of memory you intend to
install. Make sure you insert the same type of SIMMs in one bank.
You can install SIMMs in either of the banks (Bank 0 or Bank 1)
but you must populate one bank first before going to the next bank.

The table below summarizes the bank locations and modules
needed for the corresponding memory sizes.

34

Memory Size

8MB

8MB
16MB
16MB
16MB
24MB
24MB
32MB
32MB
32MB
40MB
40MB

Bank 0

SIMM1

4MB

—

8MB

—
4MB
4MB
8MB

16MB

—
8MB
4MB

16MB

SIMM2

4MB

—

8MB

—
4MB
4MB
8MB

16MB

—
8MB
4MB

16MB

Bank 1

SIMM3

—

4MB

—
8MB
4MB
8MB
4MB

—

16MB

8MB

16MB

4MB

SIMM4

—

4MB

—
8MB
4MB
8MB
4MB

—

16MB

8MB

16MB

4MB

Upgrade Guide

Bank 0 Bank 1

3

Memory Size

48MB
48MB
64MB
64MB
64MB
72MB
72MB
80MB
80MB
96MB

96MB
128MB
128MB
128MB
136MB
136MB
144MB
144MB
160MB
160MB
192MB
192MB
256MB

SIMM1

8MB
16MB
32MB

—

16MB

4MB
32MB

8MB
32MB
16MB
32MB
64MB

—

32MB

4MB
64MB

8MB
64MB
16MB
64MB
32MB
64MB
64MB

SIMM2

8MB
16MB
32MB

—

16MB

4MB
32MB

8MB
32MB
16MB
32MB
64MB

—

32MB

4MB
64MB

8MB
64MB
16MB
64MB
32MB
64MB
64MB

SIMM3

16MB

8MB

—
32MB
16MB
32MB

4MB

32MB

8MB
32MB
16MB

—
64MB
32MB
64MB

4MB

64MB

8MB
64MB
16MB
64MB
32MB
64MB

SIMM4

16MB

8MB

—
32MB
16MB
32MB

4MB

32MB

8MB
32MB
16MB

—
64MB
32MB
64MB

4MB

64MB

8MB
64MB
16MB
64MB
32MB
64MB

35

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586STEG System Board User’s Manual
Installing a SIM Module

A SIM module simply snaps into a socket on the system board. Pin
1 of the SIM module must correspond with Pin 1 of the socket.

notch

key

1. Position the SIMM above the socket with the “notch” in the
module aligned with the “key” on the socket.

2. Seat the module at a 45° angle into the bank. Make sure it is
completely seated. Tilt the module upright until it locks in place
in the socket.

36

Upgrade Guide

Cache Memory Upgrade Information

The system board supports 256KB or 512KB pipeline/linear burst,
direct map write-back cache installed at locations U5 and U6 of the
system board. Regardless of the amount of cache memory installed,
one SRAM is mounted on location U10 for tag SRAM to store the
cacheable addresses. Refer to Appendix C for the locations of the
SRAMs and tag SRAM.

Cacheable Memory

3

Cache Size

256KB
512KB

Cacheable Range

64MB

128MB

Processor Upgrade Information

The system board allows
for easy installation of
processors. Make sure all
jumpers are set correctly
before applying power or
you may damage the
processor or system board.
Use a needle-nosed plier to
move the jumpers if
necessary.

The table below shows the External System Bus Clock of the
processors supported by the system board and their corresponding
PCI Clock and ISA Bus Clock.

Ext. System Bus Clock

60MHz
66MHz
75MHz

PCI CLK
30MHz
33MHz
32MHz

ISA Bus CLK

7.5MHz

8.25MHz
8MHz

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586STEG System Board User’s Manual

Jumper Settings for Intel® Processors

Processors-Ext. Bus Clk

90MHz - 60MHz

100MHz - 66MHz

120MHz - 60MHz

133MHz - 66MHz

150MHz - 60MHz

166MHz - 66MHz

200MHz - 66MHz

MMX166MHz - 66MHz

JP1

JP4

JP8

JP9

JP10

JP11

MMX200MHz - 66MHz

MMX233MHz - 66MHz

Important:

JP6 is for Cache Burst Mode Select. When using an Intel processor, you must set JP6
to Off for interleave burst.

Note:

The default setting is Intel Pentium processor with MMXTM technology 166MHz
(2.8V).

38

Jumper Settings for Cyrix®/IBM® Processors

Upgrade Guide

3

Processors-Ext. Bus Clk

6x86L PR150+ 60MHz

6x86L PR166+ 66MHz

6x86L PR200+ 75MHz

6x86MX-PR166 60MHz

6x86MX-PR166 66MHz

6x86MX-PR200 66MHz

6x86MX-PR200 75MHz

Important:

JP6 is for Cache Burst Mode Select. When using a Cyrix/IBM processor, you must set
JP6 to On for linear burst.

JP1

JP4

JP8

JP9

JP10

JP11

SIM Modules for Cyrix PR200+ Processor

If you are using a Cyrix PR200+ processor, we highly recommend
that you use SIM modules installed with EDO 60ns DRAMs. The
following modules were tested when using a Cyrix PR200+
processor with this system board.

SIMM
8MB
8MB
16MB
16MB
32MB

Brand
NEC
Micron
Samsung
NEC
Samsung

Chip Number
4218165-6 EDO
MT4C4007-6 EDO
KM44C4104AK-6 EDO
4217405-6 EDO
KM48C2104BS-6 EDO

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586STEG System Board User’s Manual

Jumper Settings for AMD Processors

Processors-Ext. Bus Clk

K5 PR90 - 60MHz

K5 PR100 - 66MHz

K5 PR120 - 60MHz

K5 PR133 - 66MHz

K5 PR166 - 66MHz

K6-166 - 66MHz

K6-200 - 66MHz

K6-233 - 66MHz

JP1

JP4

JP8

JP9

JP10

JP11

Important:

JP6 is for Cache Burst Mode Select. When using an AMD processor, you must set JP6
to Off for interleave burst.

40

Jumper Settings for Voltage

Upgrade Guide

3

Voltage

2.8V

2.9V

3.0V

3.1V

3.2V

3.3V

3.5V

JP5 JP7

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586STEG System Board User’s Manual

Installing Upgrade Processors

The system board is equipped with a 321-pin Zero Insertion Force
(ZIF) socket. Refer to Appendix C for the location of the ZIF
socket. This socket is designed for easy removal of an old processor
and easy insertion of an upgrade processor. The ZIF socket allows
you to carefully place the new processor into its position. If you need
to apply excessive force to insert the processor, you are not installing
the processor correctly.

Warning:

Open the socket only if you are actually installing a processor. The
warranty on the original processor will be voided if the S/N seal
is broken. Before proceeding with the upgrade, take note of the
following. The microprocessor and heat sink may be hot if the
system has been running. To avoid the possibility of a burn, power
the system off and let the processor and heat sink cool for 20
minutes.

The 321-pin ZIF socket consists of five rows of pin holes on each side.
To prevent improper processor installation, the ZIF socket has a Plug/
Keying mechanism. Several holes in the socket are plugged so that the
processor will go in only one way. If you cannot easily insert the
processor, verify that pin 1 of the processor is aligned with pin 1 of
the socket.

To install an upgrade processor, do the following.

1. Make sure the handle on the side of the ZIF socket is up. To
raise the handle, push it down, slightly pull it out to the side,
then raise it as far as it will go. It may be necessary to initially
apply a small amount of sideways force to free the handle from
its retaining “tab”. Once clear of the “tab”, the handle will open
relatively easily. The top plate will slide back. Do not use
screwdrivers or other tools to open the socket, or you may
damage the system or socket.

42

Upgrade Guide

Handle

2. Once the lever is completely up, remove the old processor
carefully by lifting it straight out of the socket. You are now ready
to insert the new processor.

3

Pin 1

3. Position the processor above the ZIF socket. Make sure pin 1
of the processor is aligned with pin 1 of the socket. Lower the
chip until the pins are inserted properly in their corresponding
holes. Remember that very little force is needed to install the
processor. If the processor is not easily inserted, verify whether
or not pin 1 of the processor is aligned with pin 1 of the socket.
Applying too much pressure can damage the processor or the
socket.

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3

586STEG System Board User’s Manual

Pin 1

4. Push the handle down until the handle locks into place. The top
plate will slide forward. You will feel some resistance as the pressure
starts to secure the processor in the socket. This is normal and
will not damage the processor. However, if the handle is not
completely closed, damage to the processor and/or system board
may result.

Installing A Fan/Heatsink for Cyrix Processors

If you are using a Cyrix processor, you must choose a fan/heatsink
which is made for Cyrix processors. Position the fan/heatsink on the
processor such that the air from the side of the fan/heatsink will flow
across the heat regulators on the system board. See the figure below.

44

Upgrade Guide

Clearance Requirements

The processor comes with a heatsink mounted on top. To maintain
proper airflow once the upgrade processor is installed on the system
board, the processor and heatsink require certain space clearances. The
clearance above the processor’s fan/heat sink must be at least 0.4
inches. The clearance on at least 3 of 4 sides of the processor must
be at least 0.2 inches. The cables (for floppy drive, hard drive, CD­ROM, etc.) must be routed clear of the processor and its airspace.

Fan Exhaust

The processor must be kept cool by using a fan with heatsink. The
temperature of the air entering the fan/heatsink cannot exceed 45°C
(113°F). The ambient or room temperature must be below 37°C
(99°F). In order to provide proper airflow to the processor, all movable
obstructions (power supply cables, cards, floppy disk cables) must be
clear of the processor fan/heatsink component in accordance with the
space clearance discussed in the Clearance Requirements section of
this manual.

3

45

3

586STEG System Board User’s Manual

Jumper Settings for CMOS Clear

Jumper JP13
CMOS Clear

If, for some reason, the CMOS
data becomes corrupted, the
system can be reconfigured
with the default values stored
in the ROM BIOS. To load the
default values, power off your
system. Set JP13 pins 2 and 3
to On. Wait for a few seconds
and set JP13 back to its
default setting, pins 1 and 2
On. You may now power on
your system.

46

1

2

3

1-2 On: Normal

(default)

1

2

3

2-3 On:

CMOS Clear

CHAPTER

Desktop Management Interface

4

586STEG System Board User’s Manual

Desktop Management Interface (DMI)

The system board comes with a DMI built into the BIOS. DMI,
along with the appropriately networked software, is designed to
make inventory, maintenance and troubleshooting of computer
systems easier. With DMI, a network administrator or MIS engineer
can remotely access some information about a particular computer
system without physically going to it. Quite often a service call may
be unnecessary as the problem can be solved remotely.

The DMI utility in the BIOS automatically records various information
about your system configuration. Information about the type and speed
of CPU, type and amount of memory for each memory slot, BIOS
revision level, types of add-in PCI boards and components, certain
revision numbers of hardware installed, etc. are automatically detected
and stored in the DMI pool, which is a part of the system board's
Plug and Play BIOS. Additional information, such as ISA based
peripherals, which may not be automatically detected, can be manually
recorded in the DMI pool by using the Add DMI menu. The DMI pool
data is then verified or updated whenever the system hardware or
setup is altered.

Running the DMI Utility

To run the DMI utility, type: DMICFG.EXE. You can download this utility
from http://www.dfiweb.com - BIOS & DRIVERS section or
ftp.dfiusa.com - /pub/DMI directory.

The DMI utility must run in real mode with at least 180K of base
memory. Memory managers like HIMEM.SYS (required by Windows)
must not be installed. You may do this by using one of the 3 methods
listed below.

1. Boot up from a system diskette without the AUTOEXEC.BAT and
CONFIG.SYS files,

2. “REM” HIMEM.SYS in the CONFIG.SYS, or

3. Press <F5> during bootup to bypass your AUTOEXEC.BAT and
CONFIG.SYS files.

48

Using the DMI Utility

Desktop Management Interface

4

[Edit DMI] [Add DMI] [Load DMI File] [Save DMI File]

s

n

s

↑ ↓
→

Award DMI Configuration Utility Copyright Award Software Inc, 1996

BIOS

System

Enclosure/Chassis

Processor

Memory Controller

Memory Module
Memory Module
Memory Module
Memory Module

Cache

Cache
Port Connector
Port Connector
Port Connector
Port Connector
Port Connector
Port Connector
Port Connector

System Slots

←

Move cursor ENTER-Accept DEL-Delete ESC-Abort&Exit

Type : BIOS Information
Handle : 0000

Vendor Name :
BIOS Version :
BIOS Starting Address Segment : F000
BIOS Build Date :
BIOS Characteristics :
Size of BIOS ROM : 0128K

*** BIOS Auto Detect ***

The four menus located on top of the DMI Configuration Utility screen
are Edit DMI, Add DMI, Load DMI File and Save DMI File. Use the
← or → (left or right) arrow keys to select a menu from the Menu
bar.

On the left side of the screen is a list of the system configuration items.
Use the ↑ or ↓ (up or down) arrow keys to select an item.

The commands at the bottom of the screen will allow you to navigate
through the various setup menus.

Edit DMI

1. Use the ← or → arrow keys to select the Edit DMI menu.

2. Highlight the item on the left screen that you would like to edit
by using the ↑ or ↓ arrow keys, then press <Enter>.

3. The cursor will move to the screen you select allowing you to edit
information. The screen will also display the auto-detected
information.

4. Press <F10> to update the edited information into the flash ROM.

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586STEG System Board User’s Manual

Add DMI

1. Use the ← or → arrow keys to select the Add DMI menu.

2. Highlight the item on the left screen that you would like to add
by using the ↑ or ↓ arrow keys, then press <Enter>.

3. The cursor will move to the screen you select allowing you to enter
information about the added item.

4. Press <F10> to save information into the flash ROM.

To view information about the added items, go to the Edit DMI menu.

Load DMI File

1. Use the ← or → arrow keys to select the Load DMI File menu.

2. The following message will appear.

Press [Enter] to select DMI file for load

Press <Enter>.

3. The DMI files will appear on the screen. Select the file you would
like to load and press <Enter>.

4. The following message will appear.

Do you want to execute? (Y/N)

Type <Y>. All previous DMI structures will be destroyed and the
new file will be saved into the flash ROM.

Save DMI File

1. Use the ← or → arrow keys to select the Save DMI File menu.

2. The following message will appear.

Press [Enter] to select DMI file for save

Press <Enter>.

3. Enter the directory and filename under which you would like the
DMI file saved.

50

APPENDIX

Installation Instructions

A

586STEG System Board User’s Manual

This chapter summarizes the steps to install the system board into
your system unit. It also includes a description of the area in which
you must work and directions for memory installation. Before
installing the system board, obtain the memory you plan to install.
Refer to the “System Memory Upgrade Information” section for
the number and type of memory modules needed for the amount
of memory you require.

Preparing the Area

Before unpacking the system board, make sure the location you
have selected is relatively free of dust and static electricity. Excessive
exposure to dust, static electricity, direct sunlight, excessive humidity,
extreme cold, and water can damage the operational capabilities of
your system board. Avoid placing the unit on surfaces such as
carpeted floors. These areas also attract static electricity which can
damage some circuits on your system board.

Make sure the power source has a properly grounded, three­pronged socket. It is essential that the power connection be
properly grounded for correct functioning of your system board. For
further protection, we recommend that you use a surge suppressor.
This will protect the system board from damage that may result
from a power surge on the electrical line.

Move items that generate magnetic fields away from your system
board since magnetic fields can also damage your system board.
Once you have selected the ideal location, unpack the system board
carefully.

Handling the System Board

It is quite easy to inadvertently damage your system board even
before installing it in your system unit. Static electrical discharge can
damage computer components without causing any signs of physical
damage. You must take extra care in handling the system board to
ensure against electrostatic build-up.

Static Electricity Precautions

1. To prevent electrostatic build-up, leave the board in its anti-static
bag until you are ready to install it.

52

Installation Instructions

2. Wear an antistatic wrist strap.

3. Do all preparation work on a static-free surface with the system
board components facing up.

4. Hold the system board only by its edges. Be careful not to
touch any of the components, contacts or connections, especially
gold contacts, on the board.

5. Avoid touching the pins or contacts on all modules and
connectors. Hold modules and connectors by their ends.

Warning:

Electrostatic discharge (ESD) can damage your processor, disk
drives, add-in boards, and other components. Perform the
upgrade instruction procedures described at an ESD workstation
only. If such a station is not available, you can provide some ESD
protection by wearing an antistatic wrist strap and attaching it
to a metal part of the system chassis. If a wrist strap is
unavailable, establish and maintain contact with the system
chassis throughout any procedures requiring ESD protection.

Installing the System Board

A

If you are installing the system board, the following outlines the
basic installation steps. Before installing the system board into your
system unit, you should prepare the tools you will need.

You will need:

• One medium size, flat-bladed screwdriver

• One medium Phillips screwdriver

• One needle-nosed pliers

• One small nutdriver

1. Unlock your system unit. Turn off the power and disconnect all

power cords and cables.

2. Remove the system unit cover. Refer to the manufacturer’s

instructions if necessary.

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586STEG System Board User’s Manual

3. Detach all connectors from the old system board and remove
expansion cards seated in any expansion slots.

4. Loosen the screws holding the original system board and
remove the board from the system. Save the screws.

5. Remove the system board from its original packing box. Be
careful to avoid touching all connectors and pins on the
board. Please refer to the handling instructions for proper
handling techniques.

6. Insert the memory modules into the memory banks on the
system board. The quantity and location of the memory
modules depends on the memory configuration and type of
modules you intend to use.

7. Install the processor. Be sure pin 1 of the processor is aligned
with pin 1 of the socket.

8. Set the corresponding jumpers.

9. Install the prepared system board into the case and replace
the screws.

10. Reinstall all cards and connectors and replace the system unit
cover. Reconnect all power cords and cables.

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APPENDIX

Connecting Cables

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586STEG System Board User’s Manual

Ports and Connectors

The system board comes with two serial ports, one parallel
printer port, one shrouded floppy disk header, two shrouded IDE
hard disk headers, one header for external USB ports, one IrDA
connector, a PS/2 mouse port, and a PS/2 or AT keyboard port.

Serial Ports

The built-in serial ports are RS-232C asynchronous communication
ports with 16C550A-compatible UARTs that can be used with
modems, serial printers, remote display terminals, and other serial
devices. You can set the serial ports’ I/O address in the Integrated
Peripherals setup of the Award BIOS.

The serial ports use the following system I/O addresses:

Port Configuration

Serial Port 1
Serial Port 2

* Default

COM1

3F8h*
3F8h

COM2

2F8h
2F8h*

COM3

3E8h
3E8h

Connecting the Serial Ports

Two serial port cables,
mounted on a card-edge
bracket, are provided with the
system board. Connect one
serial port cable to connector
J5 for COM 1 primary serial
port and the other serial port
cable to connector J3 for the
COM 2 secondary serial port.
Make sure the colored stripes
on the ribbon cables are
aligned with pins 1 of connectors J3 and J5. Mount the card-edge
bracket to the system chassis.

56

COM4

2E8h
2E8h

Connecting Cables

PS/2 Mouse Port

The PS/2 mouse port is a 6-pin connector on the system board.
Attach the 6-pin mouse port cable, which is mounted on a card­edge bracket, to connector J1. Make sure the red wire on the
PS/2 mouse connector is aligned with pin 1 of connector J1.
Mount the card-edge bracket to the system chassis.

B

Pin

4
5

1
2
3

6

Function
Mouse Data
Reserved
Ground
+5V
Mouse Clock
Reserved

Parallel Port

The system board has a standard printer port for interfacing your
PC to a parallel printer. It supports SPP, ECP and EPP modes. You
can set the port’s mode in the Integrated Peripherals setup of the
Award BIOS.

Setting

SPP
(Standard Parallel Port)

ECP
(Extended Capabilities Port)

EPP
(Enhanced Parallel Port)

Allows normal speed operation
but in one direction only.

Allows parallel port to operate in
bidirectional mode and at a speed
faster than the SPP’s data transfer
rate.

Allows bidirectional parallel port
operation at maximum speed.

Function

The parallel port on your system board can be set to any of the
following system I/O addresses: 3BC-3BE Hex, 378-37A Hex
(default) and 278-27A Hex.

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586STEG System Board User’s Manual
Connecting the Parallel Printer Port

Attach the DB-25 printer port
cable to connector J4 on the
system board. Make sure the
colored stripe on the ribbon
cable aligns with pin 1 of
connector J4. Use a small
nutdriver to mount the cable
into a DB-25 cutout in the
system chassis. If your printer
port cable is attached to a
card-edge bracket, connect the
cable to connector J4 on the system board and mount the card­edge bracket to the system chassis.

Connecting the Floppy Disk Drive Cable

The system board has a built-in floppy disk controller that
supports two standard floppy disk drives. You can install any 3.5”
or 5.25” floppy drives that uses 720KB, 1.2MB, 1.44MB or

2.88MB floppy disk.

To connect the floppy disk drive cable:

1. Install the 34-pin header

connector into the floppy
disk connector (J6) on the
system board. The colored
edge of the ribbon should
be aligned with pin 1 of
connector J6.

2. Install the other 34-pin

header connector(s) into
the disk drive(s). Align the
colored edge of the daisy chained ribbon cable with pin 1 of
the drive edge connector(s). The end-most connector should
be attached to the drive you want to designate as Drive A.

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Connecting Cables

Connecting the IDE Disk Drive Cable

The system board is equipped with two PCI IDE shrouded
headers that will interface up to four Enhanced IDE (Integrated
Drive Electronics) hard disk drives. To prevent improper IDE cable
installation, each PCI IDE shrouded header has a keying
mechanism. The 40-pin connector on the IDE cable can be placed
into the header only if pin 1 of the connector is aligned with pin 1
of the header.

Note:

The IDE cable with a standard 40-pin connector (without the
keying mechanism) can be installed in the PCI IDE shrouded
header. Be extremely careful to match the colored edge of the
ribbon with pin 1 of the header.

To connect the IDE disk drive cable:

1. Connect the cable to the
system board. If you are
connecting two hard drives,
install the 40-pin connector
of the IDE cable into the
primary IDE shrouded
header (connector J8). If
you are adding a third or
fourth IDE device, install
the 40-pin connector of
the other IDE cable into
the secondary IDE shrouded header (connector J7).

B

2. Connect the cable to the devices. Install the other 40-pin
header connector(s) into the device making sure to match the
colored edge of the ribbon cable aligned with pin 1 of the
drive edge connector(s).

Note:

Refer to your disk drive user’s manual for information about
selecting proper drive switch settings.

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586STEG System Board User’s Manual

Adding a Second IDE Hard Drive

When using two IDE drives, one must be set as the master and
the other as the slave. Follow the instructions provided by the
drive manufacturer for setting the jumpers and/or switches on the
drives. We recommend that the Enhanced IDE hard drives be
from the same manufacturer. In a few cases, drives from two
different manufacturers will not function properly when used
together. The problem lies in the hard drives, not the system
board.

Preparing an IDE Drive for Use

IDE disk drives are already low-level formatted, with any bad-track
errors entered, when shipped by the drive manufacturer. Do not
attempt to do a low-level format or you may cause serious
damage to the drive. To use an IDE drive, you need to enter the
drive type (this information is provided by the drive manufacturer)
into the system’s CMOS setup table. Then run FDISK and
FORMAT provided with DOS. The BIOS can also auto-detect the
hard drive(s) installed in your system. Refer to Chapter 2 - Award
BIOS Setup Utility (IDE HDD Auto Detection section) for more
information.

Warning:

Do not run FDISK and FORMAT programs on a drive that has
already been formatted or you will lose all programs and data
stored on the drive.

Using CD-ROM Drives

If you encountered problems while using an ATAPI CD-ROM
drive that is set in Master mode, please set the CD-ROM drive to
Slave mode. Some ATAPI CD-ROMs may not be recognized and
cannot be used if incorrectly set in Master mode.

Universal Serial Bus Ports

The system board is equipped with a header, at location J17 on
the system board, for external USB ports. USB allows data
exchange between your computer and a wide range of

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Connecting Cables

simultaneously accessible external Plug and Play peripherals. You
must have the proper drivers installed in your operating system to
use these ports. Refer to your operating system’s manual or
documentation.

B

Pin

1
3

5
7
9

+5V

-Data
+Data
Ground
Key

Pin

4
6
8

10

2

+5V

-Data
+Data
Ground
Ground

Connecting the USB Ports

As an option, one card-edge bracket mounted with two USB port
cables may be provided with the system board. The ends of the
cables are attached to a connector. Connect the USB cable
connector to J17 on the system board. The USB port cables can
be inserted only if pin 1 of the cable (red wire) is aligned with pin
1 of J17. Pin 9 of J17 has been removed and the hole in the USB
cable connector, which corresponds to pin 9, has been plugged to
prevent incorrectly inserting the connector. Mount the card-edge
bracket to the system chassis.

USB port

USB port

USB port cables (optional)

USB cable connector

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586STEG System Board User’s Manual

IrDA Connector

The system board is equipped with an IrDA connector for wire­less connectivity between your computer and peripheral devices.
Connect your IrDA cable to connector J2 on the system board.
Make sure “Infra Red (IR) Function” in the Integrated Peripherals
setup of the Award BIOS is set to the type of IrDA standard
supported by your IrDA peripheral/device (HPSIR or ASKIR). You
must have the proper drivers installed in your operating system to
use this connector. Refer to your operating system’s manual or
documentation.

Pin

1

2
3
4
5

Function

IRTX
GND
IRRX
N. C.
+5V

62

LEDs and Switches

Connecting Cables

B

TB-LED
Turbo LED

HD-LED
(Primary/Secondary IDE LED)

G-LED
(Green LED)

G-SW
(Green switch)

RESET
(Reset switch)

SPEAKER
(Speaker connector)

KEYLOCK
(AT power LED/
Keylock connector)

Pin 1
Pin 2

Pin 1
Pin 2

Pin 1
Pin 2

Pin 1
Pin 2

Pin 1
Pin 2

Pin 1
Pin 2
Pin 3
Pin 4

Pin 1
Pin 2

Pin 3
Pin 4
Pin 5

Use pins 1 and 3 for
the Power LED.

+5V
Signal

+5V
Signal

+5V
Signal

Signal
Ground

Signal
Ground

Signal
N.C.
Ground
+5V

Power for
Power LED
N.C.
Ground
Keylock Signal
Ground

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586STEG System Board User’s Manual

Expansion Slots

The system board is equipped with 3 dedicated PCI slots, 2
dedicated 16-bit ISA slots and 1 shared PCI/ISA slot. All PCI and
ISA slots are bus masters.

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APPENDIX

System Board Layout

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586STEG System Board User’s Manual

66

APPENDIX

SIM Modules

D

586STEG System Board User’s Manual

Types of Modules

The following modules have been tested with this system board.
Most untested brands will work but a few may fail to do so.

SIMM
4MB
4MB
8MB
8MB
8MB
8MB
8MB
8MB
8MB
16MB
16MB
16MB
16MB
16MB
16MB
32MB

Brand
Fujitsu
OKI
OKI
NEC
Micron
TI
Micron
Micron
NEC
Hitachi
Fujitsu
Mitsubishi
Hitachi
NEC
NEC
NEC

Chip Number
81C1000A-70
M51440A-70
M511000B-70
424400-60
40447-60
TMS4400DJ-70
MT4C4007-70 (EDO)
MT4C4007-60 (EDO)
4218165-60 (EDO)
7400AS-70
8117400-70
422A06-70
5117400AS-70
4217400-60
4217405-70 (EDO)
4217405-60 (EDO)

68

64MB

Important:

If you are using a Cyrix PR200+ processor, please refer to
Chapter 3 (“Jumper Settings for Cyrix®/IBM® Processor” section)
for the type of SIM modules that were tested with your system
board.

LGS

71C16100AJ6

APPENDIX

Troubleshooting

E

586STEG System Board User’s Manual

Troubleshooting Checklist

This chapter of the manual is designed to help you with problems
that you may encounter with your personal computer. To efficiently
troubleshoot your system, treat each problem individually. This is to
ensure an accurate diagnosis of the problem in case a problem has
multiple causes.

Some of the most common things to check when you encounter
problems while using your system are listed below.

1. The power switch of each peripheral device is turned on.

2. All cables and power cords are tightly connected.

3. The electrical outlet to which your peripheral devices are
connected is working. Test the outlet by plugging in a lamp or
other electrical device.

4. The monitor is turned on.

5. The display’s brightness and contrast controls are adjusted
properly.

6. All add-in boards in the expansion slots are seated securely.

7. Any add-in board you have installed is designed for your system
and is set up correctly.

Monitor/Display

If the display screen remains dark after the system is turned on:

1. Make sure that the monitor’s power switch is on.

2. Check that one end of the monitor’s power cord is properly
attached to the monitor and the other end is plugged into a
working AC outlet. If necessary, try another outlet.

3. Check that the video input cable is properly attached to the
monitor and the system’s display adapter.

4. Adjust the brightness of the display by turning the monitor’s
brightness control knob.

70

Troubleshooting

The picture seems to be constantly moving.

1. The monitor has lost its vertical sync. Adjust the monitor’s
vertical sync.

2. Move away any objects, such as another monitor or fan, that
may be creating a magnetic field around the display.

3. Make sure your video card’s output frequencies are supported
by this monitor.

The screen seems to be constantly wavering.

1. If the monitor is close to another monitor, the adjacent monitor
may need to be turned off. Fluorescent lights adjacent to the
monitor may also cause screen wavering.

Power Supply

When the computer is turned on, nothing happens.

1. Check that one end of the AC power cord is plugged into a live
outlet and the other end properly plugged into the back of the
system.

2. Make sure that the voltage selection switch on the back panel is
set for the correct type of voltage you are using.

3. The power cord may have a “short” or “open”. Inspect the cord
and install a new one if necessary.

E

Floppy Drive

The computer cannot access the floppy drive.

1. The floppy diskette may not be formatted. Format the diskette
and try again.

2. The diskette may be write-protected. Use a diskette that is not
write-protected.

3. You may be writing to the wrong drive. Check the path
statement to make sure you are writing to the targeted drive.

4. There is not enough space left on the diskette. Use another
diskette with adequate storage space.

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586STEG System Board User’s Manual
Hard Drive

Hard disk failure.

1. Make sure the correct drive type for the hard disk drive has
been entered in the BIOS.

2. If the system is configured with two hard drives, make sure the
bootable (first) hard drive is configured as Master and the
second hard drive is configured as Slave. The master hard drive
must have an active/bootable partition.

Excessively long formatting period.

1. If your hard drive takes an excessively long period of time to
format, it is likely a cable connection problem. However, if your
hard drive has a large capacity, it will take a longer time to
format.

Parallel Port

The parallel printer doesn’t respond when you try to print.

1. Make sure that your printer is turned on and that the printer is
on-line.

2. Make sure your software is configured for the right type of
printer attached.

3. Verify that the onboard LPT port’s I/O address and IRQ settings
are configured correctly.

4. Verify that the attached device works by attaching it to a parallel
port that is working and configured correctly. If it works, the
printer can be assumed to be in good condition. If the printer
remains inoperative, replace the printer cable and try again.

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Troubleshooting

Serial Port

The serial device (modem, printer) doesn’t output anything or is
outputting garbled characters.

1. Make sure that the serial device’s power is turned on and that
the device is on-line.

2. Verify that the device is plugged into the correct serial port on
the rear of the computer.

3. Verify that the attached serial device works by attaching it to a
serial port that is working and configured correctly. If the serial
device does not work, either the cable or the serial device has a
problem. If the serial device works, the problem may be due to
the onboard I/O or the address setting.

4. Make sure the COM settings and I/O address are configured
correctly.

Keyboard

Nothing happens when a key on the keyboard was pressed.

1. Make sure the keyboard is properly connected.

2. Make sure there are no objects resting on the keyboard and
that no keys are pressed during the booting process.

E

System Board

1. Make sure the add-in card is seated securely in the expansion
slot. If the add-in card is loose, power off the system, re-install
the card and power up the system.

2. Check the jumper settings to ensure that the jumpers are
properly set.

3. Verify that all SIMMs are seated securely into the SIMM sockets.

4. Make sure the SIMMs are in the correct locations.

5. If the board fails to function, place the board on a flat surface
and seat all socketed components. Gently press each
component into the socket.

6. If you made changes to the BIOS settings, re-enter setup and
load the BIOS defaults.

73