Gigabyte GA-586SGX User Manual

586SGX

USER'S MANUAL

¯ Support Intel Pentium, MMX/Cyrix/IBM 6x86MX & AMD K5,K6

CPUs.

¯ Support auto detect CPU Voltage.
¯ Support auto detect four positive Voltages and Fan Speed.
¯ Support Parity check or Ecc Function.
¯ Support Ultra DMA/33 Function.

¯ Support Fully AGP 1.0 Specification.

¯ Support switching mode Voltage regulator on Board.
¯ Support 60/66/(75 MHz and 83MHz are optional).
¯ Support Wake on Lan.
¯ Support K/B Power-on , modem Ring-on (Only Support COM2), Win95

Power off , RTC Alarm.
¯ Support 3 steps ACPI LED.
¯ Thermal Protection :

1. When the system is overheating, it will stop for a few secs.

2. Then back to normal status after the system’ s temperature
step down.

3. Users better check CPU fan immediately.

Pentium



Processor PCI - ISA BUS MAINBOARD

REV. 1.0 First Edition

R-10-01-080123

Release Date 98.01.23

Quick Istallation Guide

2

586SGX

The author assumes no responsibility for any errors or omissions which may
appear in this document nor does it make a commitment to update the information
contained herein.

¯THIRD-PARTY BRANDS AND NAMES ARE THE PROPERTY OF THEIR
RESPECTIVE OWNERS.

JANUARY 23, 1998 Taipei, Taiwan

1

I. Quick Installation Guide:

Quick Installation Guide

CPU

1. Pentium

2. Pentium



Processor 90 MHz



Processor 100

MHz

3. Pentium



Processor 120

MHz

4. Pentium



Processor 133

MHz

5. Pentium



Processor 150

MHz

6. Pentium



Processor 166

MHz

7. Pentium



Processor 180

MHz

8. Pentium



Processor 200

MHz

9. Intel MMX-150MHz

SW1 SW2 SW3 SW4 SW5 SW6 SW7 SW8 JP9 JP10 JP11

ON OFF OFF OFF OFF OFF ON OFF 2-3 1-2 1-2

OFF OFF OFF OFF OFF OFF ON OFF 2-3 1-2 1-2

ON ON OFF OFF OFF OFF ON OFF 2-3 1-2 1-2

OFF ON OFF OFF OFF OFF ON OFF 2-3 1-2 1-2

ON ON ON OFF OFF OFF ON OFF 2-3 1-2 1-2

OFF ON ON OFF OFF OFF ON OFF 2-3 1-2 1-2

ON OFF ON OFF OFF OFF ON OFF 2-3 1-2 1-2

OFF OFF ON OFF OFF OFF ON OFF 2-3 1-2 1-2

ON ON ON OFF OFF OFF ON OFF 2-3 1-2 1-2

10. Intel MMX-166MHz

11. Intel MMX-200MHz

12. Intel MMX-233MHz

13. P54CT-150 MHz

14. P54CT-166 MHz

15. P54CTB-150 MHz

OFF ON ON OFF OFF OFF ON OFF 2-3 1-2 1-2

OFF OFF ON OFF OFF OFF ON OFF 2-3 1-2 1-2

OFF OFF OFF OFF OFF OFF ON OFF 2-3 1-2 1-2

ON ON ON OFF OFF OFF ON OFF 2-3 1-2 1-2

OFF ON ON OFF OFF OFF ON OFF 2-3 1-2 1-2

ON ON ON OFF OFF OFF ON OFF 2-3 1-2 1-2

2

586SGX

16. P54CTB-166 MHz

17. P54CTB-180 MHz

18. P54CTB-200 MHz

19. AMDK5-PR133

20. AMDK5-PR166

CPU

21. AMD-K6/166 (2.9V)

22. AMD-K6/180 (2.9V)

23. AMD-K6/200 (2.9V)

24. AMD-K6/233 (3.2V)

25. Cyrix/IBM 6x86-120MHz­PR150+

26. Cyrix/IBM 6x86-133MHz­PR166+

27. Cyrix/IBM 6x86-150MHz­PR200+

28. Cyrix/IBM 6x86L- PR150+
(2.8V)

29. Cyrix/IBM 6x86L-PR166+
(2.8V)

30. Cyrix/IBM 6x86L-PR200+
(2.8V)

31. Cyrix/IBM 6x86MX-PR150

(60*2 2.9V)

32. Cyrix/IBM 6x86MX-PR166

(60*2.5 2.9V)

33. Cyrix/IBM 6x86MX-PR166

(66*2 2.9V)

34. Cyrix/IBM 6x86MX-PR200

(60*3 2.9V)

OFF ON ON OFF OFF OFF ON OFF 2-3 1-2 1-2

ON OFF ON OFF OFF OFF ON OFF 2-3 1-2 1-2

OFF OFF ON OFF OFF OFF ON OFF 2-3 1-2 1-2

OFF ON OFF OFF OFF OFF ON OFF 2-3 1-2 1-2

OFF ON ON OFF OFF OFF ON OFF 2-3 1-2 1-2

SW1 SW2 SW3 SW4 SW5 SW6 SW7 SW8 JP9 JP10 JP11

OFF ON ON OFF OFF ON ON OFF 2-3 1-2 1-2

ON OFF ON OFF OFF ON ON OFF 2-3 1-2 1-2

OFF OFF ON OFF OFF ON ON OFF 2-3 1-2 1-2

OFF OFF OFF ON OFF OFF ON OFF 2-3 1-2 1-2

ON ON OFF OFF OFF OFF ON OFF 2-3 1-2 1-2

OFF ON OFF OFF OFF OFF ON OFF 2-3 1-2 1-2

OFF ON OFF OFF OFF OFF ON OFF 1-2 2-3 1-2

ON ON OFF OFF OFF OFF ON OFF 2-3 1-2 1-2

OFF ON OFF OFF OFF OFF ON OFF 2-3 1-2 1-2

OFF ON OFF OFF OFF OFF ON OFF 1-2 2-3 1-2

ON ON OFF OFF OFF ON ON OFF 2-3 1-2 1-2

ON ON ON OFF OFF ON ON OFF 2-3 1-2 1-2

OFF ON OFF OFF OFF ON ON OFF 2-3 1-2 1-2

ON OFF ON OFF OFF ON ON OFF 2-3 1-2 1-2

3

Quick Installation Guide

35. Cyrix/IBM 6x86MX-PR200

(66*2.5 2.9V)

36. Cyrix/IBM 6x86MX-PR200

(75*2 2.9V)

37. Cyrix/IBM 6x86MX-PR233

(66*3 2.9V)

38. Cyrix/IBM 6x86MX-PR233

(75*2.5 2.9V)

CPU

39. Cyrix/IBM 6x86MX-PR233

(83*2 2.9V)

40. Cyrix/IBM 6x86MX-PR266

(66*3.5 2.9V)

41. Cyrix/IBM 6x86MX-PR266

(75*3 2.9V)

42. Cyrix/IBM 6x86MX-PR266

(83*2.5 2.9V)

¬

Note: If Cyrix 6x86 is being used, please check the CPU Date Code after 605.

¬

Note: We don’ t recommend you to setup up your system speed up to 75 or 83 MHz because

OFF ON ON OFF OFF ON ON OFF 2-3 1-2 1-2

OFF ON OFF OFF OFF ON ON OFF 1-2 2-3 1-2

OFF OFF ON OFF OFF ON ON OFF 2-3 1-2 1-2

OFF ON ON OFF OFF ON ON OFF

SW1 SW2 SW3 SW4 SW5 SW6 SW7 SW8 JP9 JP10 JP11

ON ON OFF OFF OFF ON ON OFF 1-2 1-2 2-3

OFF OFF OFF OFF OFF ON ON OFF 2-3 1-2 1-2

OFF OFF ON OFF OFF ON ON OFF

ON ON ON OFF OFF ON ON OFF 1-2 1-2 2-3

1-2 2-3 1-2

1-2 2-3 1-2

they, are not the standard spec. of pheriphrals. If you want to run 75 or 83 MHz in your
system properly, it depends on your hardware configurations: CPU, SDRAM, Cards, etc.

4

586SGX

5

1. Pentium Processor 90 MHz

ON

ON

2. Pentium Processor 100 MHz

CPU

Quick Installation Guide

1

JP11 JP10

1 2 3 4 5 6 7 8

JP8

1

JP9

1

1

1

JP11 JP10

1 2 3 4 5 6 7 8

CPU

JP8

1

JP9

6

586SGX

ON

ON

3. Pentium Processor 120 MHz

4. Pentium Processor 133 MHz

CPU

JP8

1

JP11 JP10

1 2 3 4 5 6 7 8

1

JP9

1

1

1

JP11 JP10

1 2 3 4 5 6 7 8

CPU

JP8

1

JP9

0

7

5. Pentium Processor 150 MHz

ON

ON

6. Pentium Processor 166 MHz

CPU

Quick Installation Guide

1

JP11 JP10

1 2 3 4 5 6 7 8

JP8

1

JP9

1

1

1

JP11 JP10

1 2 3 4 5 6 7 8

CPU

JP8

1

JP9

8

586SGX

ON

ON

7. Pentium Processor 180 MHz

8. Pentium Processor 200 MHz

CPU

JP8

1

JP11 JP10

1 2 3 4 5 6 7 8

1

JP9

1

1

1

JP11 JP10

1 2 3 4 5 6 7 8

CPU

JP8

1

JP9

9

9. Intel MMX-150 MHz

ON

ON

10. Intel MMX-166 MHz

CPU

Quick Installation Guide

1

JP11 JP10

1 2 3 4 5 6 7 8

JP8

1

JP9

1

1

1

11. Intel MMX-200 MHz

JP11 JP10

1 2 3 4 5 6 7 8

CPU

JP8

1

JP9

1

10

586SGX

ON

ON

12. Intel MMX-233 MHz

CPU

JP8

1

JP11 JP10

1 2 3 4 5 6 7 8

1

JP9

1

JP11 JP10

1

1

13. P54CT-150 MHz

1 2 3 4 5 6 7 8

CPU

JP8

1

JP9

11

ON

14. P54CT-166 MHz

ON

CPU

Quick Installation Guide

1

JP11 JP10

1 2 3 4 5 6 7 8

JP8

1

JP9

1

JP11 JP10

1

1

15. P54CTB-150 MHz

1 2 3 4 5 6 7 8

CPU

JP8

1

JP9

12

586SGX

ON

ON

16. P54CTB-166 MHz

CPU

JP8

1

JP11 JP10

1 2 3 4 5 6 7 8

1

JP9

1

JP11 JP10

1

1

17. P54CTB-180 MHz

1 2 3 4 5 6 7 8

CPU

JP8

1

JP9

13

ON

18. P54CTB-200 MHz

ON

CPU

Quick Installation Guide

1

JP11 JP10

1 2 3 4 5 6 7 8

JP8

1

JP9

1

JP11 JP10

1

1

19. AMDK5-PR133

1 2 3 4 5 6 7 8

CPU

JP8

1

JP9

14

586SGX

ON

ON

20. AMDK5-PR166

CPU

JP8

1

JP11 JP10

1 2 3 4 5 6 7 8

1

JP9

1

JP11 JP10

1

1

21. AMD-K6/166 (2.9V)

1 2 3 4 5 6 7 8

CPU

JP8

1

JP9

15

ON

22. AMD-K6/180 (2.9V)

ON

CPU

Quick Installation Guide

1

JP11

1 2 3 4 5 6 7 8

JP8

1

JP9

1

JP11 JP10

1

JP10

1

23. AMD-K6/200 (2.9V)

1 2 3 4 5 6 7 8

CPU

JP8

1

JP9

16

586SGX

ON

ON

24. AMD-K6/233 (3.2V)

CPU

JP8

1

JP11 JP10

1 2 3 4 5 6 7 8

1

JP9

1

JP11 JP10

1

1

25. Cyrix / IBM 6x86-120 MHz-PR150+

17

1 2 3 4 5 6 7 8

CPU

JP8

1

JP9

ON

26. Cyrix /IBM 6x86-133 MHz-PR166+

ON

CPU

Quick Installation Guide

1

JP11 JP10

1 2 3 4 5 6 7 8

JP8

1

JP9

1

JP11 JP10

1

1

27. Cyrix /IBM 6x86-150 MHz-PR200+

18

1 2 3 4 5 6 7 8

CPU

JP8

1

JP9

586SGX

ON

ON

28. Cyrix / IBM 6x86L-PR150+ (2.8V)

CPU

JP8

1

JP11 JP10

1 2 3 4 5 6 7 8

1

JP9

1

JP11 JP10

1

1

29. Cyrix / IBM 6x86L-PR166+ (2.8V)

19

1 2 3 4 5 6 7 8

CPU

JP8

1

JP9

ON

30. Cyrix / IBM 6x86L-PR200+ (2.8V)

ON

CPU

Quick Installation Guide

1

JP11 JP10

1 2 3 4 5 6 7 8

JP8

1

JP9

1

JP11 JP10

1

1

31. Cyrix / IBM 6x86MX-PR150 (60x2.5 2.9V)

20

1 2 3 4 5 6 7 8

CPU

JP8

1

JP9

586SGX

ON

ON

32. Cyrix / IBM 6x86MX-PR166 (60x2.5 2.9V)

CPU

JP8

1

JP11 JP10

1 2 3 4 5 6 7 8

1

JP9

1

JP11 JP10

1

1

33. Cyrix / IBM 6x86MX-PR166 (66x2 2.9V)

21

1 2 3 4 5 6 7 8

CPU

JP8

1

JP9

ON

34. Cyrix / IBM 6x86MX-PR200 (60x3 2.9V)

ON

CPU

Quick Installation Guide

1

JP11 JP10

1 2 3 4 5 6 7 8

JP8

1

JP9

1

JP11 JP10

1

1

35. Cyrix / IBM 6x86MX-PR200 (66x2.5 2.9V)

22

1 2 3 4 5 6 7 8

CPU

JP8

1

JP9

586SGX

ON

ON

36. Cyrix / IBM 6x86MX-PR200 (75x2 2.9V)

CPU

JP8

1

JP11 JP10

1 2 3 4 5 6 7 8

1

JP9

1

JP11 JP10

1

1

37. Cyrix / IBM 6x86MX-PR200 (66x3 2.9V)

23

1 2 3 4 5 6 7 8

CPU

JP8

1

JP9

ON

38. Cyrix / IBM 6x86MX-PR233 (75x2.5 2.9V)

ON

CPU

Quick Installation Guide

1

JP11 JP10

1 2 3 4 5 6 7 8

JP8

1

JP9

1

JP11 JP10

1

1

39. Cyrix / IBM 6x86MX-PR233 (83x2 2.9V)

24

1 2 3 4 5 6 7 8

CPU

JP8

1

JP9

586SGX

ON

ON

40. Cyrix / IBM 6x86MX-PR266 (66x3.5 2.9V)

CPU

JP8

1

JP11 JP10

1 2 3 4 5 6 7 8

1

JP9

1

JP11 JP10

1

1

41. Cyrix / IBM 6x86MX-PR266 (75x3 2.9V)

25

2 3 4 5 6 7 8

CPU

JP8

1

JP9

ON

42. Cyrix / IBM 6x86MX-PR266 (83x2.5 2.9V)

ON

CPU

Quick Installation Guide

1

JP11 JP10

1 2 3 4 5 6 7 8

JP8

1

JP9

1

JP11 JP10

1

1

II. Quick Installation Guide of Jumper setting:

SPK : Speaker Connector

26

1 2 3 4 5 6 7 8

CPU

JP8

1

JP9

586SGX

1

RST : Reset Switch

1

CPU

CPU

PWR LED : Power LED (As a 3 steps ACPI LED)

1

HD : IDE Hard Disk Active LED

27

CPU

1

IR : Infrared Connector

Quick Installation Guide

CPU

1
2
3
4
5

FunctionPin No.

IR Data Output
GND
IR Data Input
NC
POWER (+)

GN : Green Function Switch

1

Close one time:

1

For system entering Green

SOFT PWR : Power On/Off Switch

CPU

CPU

28

586SGX

system immediately

1

Two Option :

ATX Power Connector

1

11

3,5,7,13,15-17

CPU

CPU

JP8 : CPU Cooling Fan Power Connector

JP13: Keyboard Power On

29

CPU

1

1,2 Short :
Keyboard Power On Enable
2, 3 Short :
Keyboard Power On Disable

JP14: Wake On Lan

1

Pin No. Function

1

2

+5V

GN

Signal3

Quick Installation Guide

CPU

CPU

CN4 : LPT PORT

CN2 : USB Port

CPU

30

586SGX

COM B

COM A

CN3 : COM B

CPU

CPU

CN4 : COM A

J3 : PS/2 Mouse / Keyboard Connector

31

CPU

FLOPPY PORT

Quick Installation Guide

CPU

RED LINE

CPU

IDE1 : For Primary IDE port

IDE2 : For Secondary IDE port

CPU

32

586SGX

BT1 : For Battry

+
–

CPU

CPU

M Danger of explosion if battery is incorrectly replaced.
M Replace only with the same or equivalent type recommended by the

manufacturer.

M Dispose of used batteries according to the manufacturer’ s instructions.

33

Quick Installation Guide

: Enable

NA# Enable

Enhanced Memory Write

: Enable

MA Current Rating

CAS Precharge Time (EDO)

SDRAM Wait State Control

: Disabled

Memory Hole at 15M-16M

: 3.61 V

III. Top Performance Test Setting:

Users have to modify the value for each item in chipset features as follow:

Chipset features setup

: Enabled

ISA Bus Clock Frequency

CAS# Pulse Width for FP

CPU to PCI Burst Mem. WR

**

Each value of items as above depends on your hardware configuration : CPU ,

: 7.159MHz

: X-1-1-1

: 1T

: 4500 RPM

SDRAM , Cards , etc.
Please modify each value of items If your system does not work properly .

34

Table of Contents

TABLE OF CONTENTS

1. INTRODUCTION

1.1. PREFACE.................................................................................1-1

1.2. KEY FEATURES....................................................................... 1-1

1.3. PERFORMANCE LIST .............................................................. 1-2

1.4. BLOCK DIAGRAM..................................................................... 1-3

1.5. INTRODUCE THE PCI - BUS....................................................1-4

1.6. FEATURES...............................................................................1-4

1.7. What is AGP.............................................................................1-4

2. SPECIFICATION

2.1. HARDWARE.............................................................................2-1

2.2. SOFTWARE.............................................................................. 2-2

2.3. ENVIRONMENT........................................................................ 2-2

3. HARDWARE INSTALLATION

3.1. UNPACKING.............................................................................3-1

3.2. MAINBOARD LAYOUT .............................................................. 3-2

3.3. QUICK REFERENCE FOR JUMPERS & CONNECTORS.......... 3-2

3.4. DRAM INSTALLATION .............................................................. 3-5

3.5. SRAM INSTALLATION.............................................................. 3-11

3.6. CPU INSTALLATION AND JUMPERS SETUP ........................... 3-11

3.7. CMOS RTC & ISA CFG CMOS SRAM ....................................... 3-11

3.8. SPEAKER CONNECTOR INSTALLATION................................. 3-11

3.9. ACPI LED CONNECTOR INSTALLATION................................. 3-12

3.10. HARDWARE RESET SWITCH CONNECTOR INSTALLATION.3-12

34

586SGX

3.11. GREEN FUNCTION INSTALLATION....................................... 3-12

3.12. PERIPHERAL DEVICE INSTALLATION................................... 3-12

4. BIOS CONFIGURATION

4.1. ENTERING SETUP................................................................... 4-1

4.2. CONTROL KEYS ...................................................................... 4-2

4.3. GETTING HELP........................................................................ 4-3

4.3.1. Main Menu ............................................................................. 4-3

4.3.2. Status Page Setup Menu / Option Page Setup Menu............... 4-3

4.4. THE MAIN MENU......................................................................4-3

4.5. STANDARD CMOS SETUP MENU............................................4-5

4.6. BIOS FEATURES SETUP ......................................................... 4-11

4.7. CHIPSET FEATURES SETUP...................................................4-16

4.8. POWER MANAGEMENT SETUP.............................................. 4-22

4.9. PNP/PCI CONFIGURATION...................................................... 4-25

4.10. LOAD BIOS DEFAULTS..........................................................4-27

4.11. LOAD SETUP DEFAULTS ....................................................... 4-28

4.12. INTEGRATED PERIPHERALS ................................................ 4-29

4.13. SUPERVISOR / USER PASSWORD....................................... 4-35

4.14. IDE HDD AUTO DETECTION..................................................4-37

4.15. SAVE & EXIT SETUP.............................................................. 4-38

4.16. EXIT WITHOUT SAVING ........................................................ 4-39

35

INTRODUCTION

1. INTRODUCTION

1.1. PREFACE

Welcome to use the 586SGX motherboard. The motherboard is a Pipeline
512 KB CACHE Pentium Processor based PC / AT compatible system with
ISA bus and PCI Local Bus, and has been designed to be the fastest PC / AT
system. There are some new features allow you to operate the system with
the performance you want.

This manual also explains how to install the motherboard for operation, and
how to set up your CMOS CONFIGURATION with BIOS SETUP program.

1.2. KEY FEATURES

q Pentium



Processor based PC / AT compatible mainboard with PCI /

ISA / AGP Bus.

q 4 PCI Bus slots, 3 ISA Bus slots, 1 AGP slot.
q Supports Pentium



Processor running at 90-233 MHz, P54CT (150 /

166), MMX (150 / 166 / 200 / 233), P54CTB (150 / 166 / 180 / 200),
AMDK5 (PR133 / PR166), AMD-K6(166/180/200 (2.9V) /233 (3.2V)),
Cyrix / IBM 6x86-120/ 133/150(PR150+/PR166+/PR200+), Cyrix / IBM
6x86L (PR150+ / PR166+/PR200+(2.8V)), Cyrix / IBM 6x86MX (PR166
(60x2.5 2.9V) / PR200 (66x2.5 2.9V) (75x2 2.9V)/ PR233 (66x3 2.9V)
(75x2.5 2.9V)) / PR266 (66x3.5 2.9V) (75x3 2.9V) (83x2.5 2.9V)).

q Supports true 64 bits CACHE and DRAM access mode.
q Supports 321 Pins (Socket 7) ZIF white socket on board.
q Supports 512 KB Pipeline Burst Sync. 2
q CPU L1 / L2 Write-Back cache operation.
q Supports 8 - 768 MB DRAM memory on board.
q Supports 2*72 pin 32/36 Bit SIMM module.
q Supports 3*168 pin 64/72 Bit DIMM module.
q Supports 2-channel Ultra DMA/33 Enhanced PCI IDE ports for 4 IDE

nd

Level Cache.

Devices.

q Supports 2*COM (16550), 1*LPT (EPP / ECP), 1*1.44MB Floppy port.
q Supports Green function, Plug & Play function.

1-1

586SGX

q Licensed AWARD BIOS, FLASH RAM for BIOS update.
q 30.5cm*17cm, ATX Form factor.
q Supports USB port & PS/2 Mouse and K/B port.
q Supports 3 steps ACPI LED.

1.3. PERFORMANCE LIST

The following list of performance data is the testing results of some popular
benchmark testing programs.

These data are just referred by users, and there is no responsibility for
different testing data values gotten by users. (The different Hardware &
Software configuration will result in different benchmark testing results.)

• CPU Pentium



Processor MMX-233 MHz , Cyrix 6x86MX-

PR233 , AMD K6-233

• DRAM DIMM, SDRAM 32 MB * 1 pcs. Total 32 MB TOSHIBA

(TC5951608AFT-12A)

• CACHE SIZE 512KB 2

nd

Level Cache on board.

• DISPLAY GA-600 AGP CARD

• STORAGE Onboard IDE port + IBM DEHA 34330 (Ultra DMA/33)

• O.S. Windows95 with Display Driver at 1024 x 768 x 256

colors & SiS IDE Driver (Ultra DMA supported)

×Windows 95Ø-With GA-600 Display Driver V2.70 1024*768*256

High-End Winstone 97 21.3 21.3 20.3

Business Winstone 97 49.5 51.4 51.6

Hi-End Graphics Winmark 97 40.3 43.3 44.4

Hi-End Disk Winmark 97 4430 4900 5140

-With SiS IDE Driver

TEST

PROGRAM

CPU Mark32 473 571 478

Intel-MMX 233MHz

(66x3.5)

1-2

AMD K6-233

(66x3.5)

Cyrix MX-PR233

(75x2.5 )

1.4. BLOCK DIAGRAM

CPU

SiS 5595

SiS 5591

33MHz

PLL

Winbond

I/O 83877

14.318Hz

14.318Hz

INTRODUCTION

PLL
52C64-05

52C64-09

Tag RAM

DEVICE

PBSRAM

Host Address

PCI Bus

Host Data Bus

MD Bus

MA Bus

IDE DEVICE

33MHz

USB
GPIO

PS/2

DRAM

PCI

Device

PCI

Device

PCI

Device

PCI

Device

ISA

Device

COMA

COMB

LPT FDD

1-3

ISA Bus

ISA

Device

ISA

Device

586SGX

1.5. INTRODUCE THE PCI - BUS

Connecting devices to a CPU local bus can dramatically increase the speed
of I/O-bound peripherals with only a slight increase in cost over traditional
systems.

This price / Performance point has created a vast market potential for local
bus products.

The main barrier to this market has been the lack of an accepted standard
for local bus peripherals.

Many mainboard and chipset manufactures developed their own local bus
implementations, but they are incompatible with each other.

The VL (Video Electronics Standards Association) local bus and PCI
(Peripheral Component Interconnect) bus specification was created to end
this confusion.

The PCI - bus standard, under development since Jun. 1992, which is
designed to bring workstation-level performance to standard PC platform.
The PCI - bus removes many of the bottlenecks that have hampered PC for
several years.

On the PCI - bus, peripherals operate at the native speed of the computer
system, thus enabling data transfer between peripherals and the system at
maximum speed.

This performance is critical for bandwidth-constrained devices such as video,
multimedia, mass storage, and networking adapters.

PCI - bus standard provides end-users with a low-cost, extendible and
portable local bus design, which will allow system and peripherals from
different manufactures to work together.

1.6. FEATURES

32 bits bus transfer mode.

q

Bus Master or Slave access.

q

Memory burst transfer to 132 MB/sec.

q

33 MHz operation speed.

q

10 device loading ability.

q

CPU independent.

q

1.7. What is AGP

1-4

INTRODUCTION

The Accelerated Graphics Port (AGP) is a new port on the Host-To-PCI
bridge device that supports an AGP port. The main purpose of the AGP port
is to provide fast access to system memory.

The AGP port can be used either as fast PCI port (32-bits at 66MHz vs. 32­bits at 33MHz) or as an AGP port which supports 2x data-rate, a read queue,
and side band addressing. When the 2x-data rate is used the port can
transmit data at 533Mb/sec (66.6*2*4). The read-queue can be used to
pipeline reads – removing the effects of the reads-latency. Side band
addressing can be used to transmit the data address on a separate line in
order to further speed the transaction.

1-5

586SGX

2. SPECIFICATION

2.1. HARDWARE

•

CPU −

•

COPROCESSOR −

•

SPEED −

•

DRAM MEMORY −

•

CACHE MEMORY −

•

I/O BUS SLOTS −

Pentium Processor 90 - 233 MHz, MMX, P54CT,

P54CTB, AMDK5(PR133 / PR166), AMD-K6 (166 /
180 / 200 (2.9V) / 233 (3.2V) ), Cyrix / IBM 6x86
( PR150+ / PR166+ / PR200+), Cyrix / IBM 6x86L
(PR150+/ PR166+/ PR200+( 2.8V)), Cyrix / IBM
6x86MX (PR166 (60x2.5 2.9V) / PR200 (66x2.5

2.9V) (75x2 2.9V)/ PR233 (66x3 2.9V) (75x2.5

2.9V) (83x2)/PR266 (66x3.5) (75x3) (83x2.5)

321 pins (socket 7) ZIF white socket on board.

−

3.52V / 2.0V-3.5V Dual Power Ready.

−

Included in processor.
60 / 66 / 75/ 83MHz system speed.
60 / 66 MHz AGP-Bus speed.

−

30 / 33 MHz PCI-Bus speed.

−

7.1 / 8 MHz AT bus speed.

−

1 bank 2 Sockets 72 pins SIMM module on board.
3 banks 168 pins DIMM module socket on board.

−

− Use 8 / 16 / 32 / 64 / 128 / 256 MB 60~70 ns DIMM

module DRAM.

− 8 ~ 768 MB DRAM size.

− Supports 3.3V SDRAM / EDO type DRAM.

Supports ECC or Non-ECC type DRAM.

−

16 / 24 / 32 / 64KB L1cache included in CPU.
512 KB 2nd Level cache on board.

−

Supports Write Back cache function for both CPU

−

& on board cache.
4 xMaster / Slave PCI-BUS Slots.
3 x16 bits ISA BUS Slots.

−

1 xAGP Slot.

−

2-1

SPECIFICATION

•

IDE PORTS −

•

I/O PORTS −

•

GREEN FUNCTION −

•

BIOS −

•

DIMENSION −

2.2. SOFTWARE

• BIOS

• O.S.

2-channel Ultra DMA/33 Enhanced IDE port on

board.(Using IRQ14,15)
Supports Mode 3,4 IDE & ATAPI CD – ROM.

−

Supports 2 x16550 COM ports. (Using IRQ4, 3)
Supports 1 x EPP/ECP LPT port. (Using IRQ7 or 5

−

and DMA3 or 1)
Supports 1 x 1.44/2.88 MB Floppy port. (Using

−

DMA2 & IRQ6)
Supports PS/2 Mouse. (Using IRQ12 )

−

Standby & Suspend mode support.
Green switch & ACPI LED support.

−

IDE & Display power down support.

−

Monitor all IRQ / DMA / Display / I/O events.

−

1Mbit FLASH RAM.
Supports Plug & Play Function.

−

ATX Form Factor, 4 layers PCB.

Licensed AWARD BIOS.

−

AT CMOS Setup, BIOS / Chipset Setup, Green

−

Setup, Hard Disk Utility included.
Operation with MS-DOS, Windows95,

−

WINDOWS NT, OS/2, NOVELL and SCO UNIX.

2.3. ENVIRONMENT

• Ambient Temp.

• Relative Hum.

• Altitude

• Vibration

• Electricity

0°C to +50°C (Operating).

−

0 to +85% (Operating).

−

0 to 10,000 feet (Operating).

−

0 to 1,000 Hz.

−

4.9 V to 5.2 V.

−

Max. 20A current at 5V.

−

2-2

586SGX

3. HARDWARE INSTALLATION

3.1. UNPACKING

The mainboard package should contain the following:

• The 586SGX mainboard.

• USER’ S MANUAL for mainboard.

• Cable set for IDE

¡B

Floppy.

• Diskette for Mainboard Utility.

The mainboard contains sensitive electric components which can be easily
damaged by static electricity, so the mainboard should be left in its original
packing until it is installed.

Unpacking and installation should be done on a grounded anti-static mat.
The operator should be wearing an anti static wristband, grounded at the

same point as the anti-static mat.
Inspect the mainboard carton for obvious damage. Shipping and handling

may cause damage to your board. Be sure there are no shipping and
handling damage on the board before proceeding.

After opening the mainboard carton, extract the system board and place it
only on a grounded anti-static surface component side up. Again inspect the
board for damage.

Press down on all of the socket IC’ s to make sure that they are properly
seated. Do this only on with the board placed on a firm flat surface.

M

DO NOT APPLY POWER TO THE BOARD IF IT HAS BEEN DAMAGED.

It is assumed that the chassis is designed for a standard IBM XT/AT
mainboard mounting. Place the chassis on the anti-static mat and remove
the cover.

Take the plastic clips, Nylon stand-off and screws for mounting the system
board, and keep them separate.

3-1

3.2. MAINBOARD LAYOUT

PW LED

HARDWARE INSTALLATION

CN3COMBCOMACN4

ISA1

ISA2ISA3

SPK RST

SIMM

SIMM

FLOPPY

SiS 5591

IDE2

IDE1

JP4 JP3 J1 JP2 JP1JP6 JP5

IR SOFTPWRGNHD

SiS 5595

PCI1

PCI2PCI3PCI4

USB

CN2

CPU

JP8

ATX POWER

×Figure 3.1Ø

3.3. QUICK REFERENCE FOR JUMPERS & CONNECTORS

IDE1,IDE2,CN1-4,U1,J3

t

IDE1 For Primary IDE port.
IDE2 For Secondary IDE port.

Floppy For Floppy port.

CN1 For LPT port.
CN2 For USB port.
CN3 For Serial port2 (COM B){Support Modem Ring On}.
CN4 For Serial port1 (COM A).

J3 For PS/2 Mouse & Keyboard Connector

U1 For Power Connector (ATX)

Keyboard

Mouse

BANK 2

BANK 1

BANK 0

J3

3-2

586SGX

t JP1: Soft Power Switch

On – Off for POWER ON or Suspend IN / OUT.
On 4 sec. For POWER OFF before VGA Enable or CMOS setup select
“delay 4sec.” For POWER OFF mode.

t JP2: GN-SW

On – Off for enter suspend Green Mode.

t J1: INFRARED Connector (IR) -- Function Option

Pin No. Function

1 IR Data Output
2 GND
3 IR Data Input
4 NC
5 POWER (+)

t JP3: Hard Disk active LED (HD-LED)

Pin No. Function

1 LED POWER (+)
2 LED POWER (-)
3 NC
4 LED POWER (+)

t JP4: POWER ON LED (PW-LED)

Pin No. Function

1 LED POWER (+)
2 NC
3 GND (-)

t JP5: RESET Switch

Pin No. Function

1 RESET Input
2 GND

3-3

t JP6: SPEAKER Connector

Pin No. Function

1 VCC
2 NC.
3 NC.
4 Output

t JP8: CPU cooling FAN Power Connector

Pin No. Function

1 GND.
2 +12V
3 SENSE

t JP13 : Keyboard Power On Connector

Pin No. Function
1,2 Close Enabled Keyboard power on.
2,3 Close Disabled Keyboard power on.

t JP9 : Wake on Lan

Pin No. Function

1 +5V SB
2 GND
3 Signal

HARDWARE INSTALLATION

3-4

586SGX

SW: CPU INT./ EXT. FREQ. RATIO

t

SW 6 7 8 9

2.0 V X X X X

X Close 2.1 V O X X X

O Open 2.2 V X O X X

2.3 V O O X X

2.4 V X X O X

SW 2 3 4 2.5 V O X O X
x 1.5 X X X 2.6 V X O O X
x 2 X X O 2.7 V O O O X
x 2.5 X O O 2.8 V X X X O
x 3 X O X 2.9 V O X X O
x 3.5 X X X 3.0 V X O X O
x 4 O X O 3.1 V O O X O
x 4.5 O O O 3.2 V X X O O
x 5 O O X 3.3 V O X O O
x 5.5 O X X 3.4 V X O O O

3.5 V O O O O

MHz JP9 JP10 JP11 SW1

60
66

2-3 1-2 1-2 ON

2-3 1-2 1-2 OFF
75 1-2 2-3 1-2 OFF
83

1-2

1-2 2-3 ON

3.4. DRAM INSTALLATION

The mainboard can be installed with 4 / 8 / 16 / 32 MB 72 pins SIMM module
DRAM, and the DRAM speed must be 60 or 70 ns.

The DRAM memory system on mainboard consists of Bank0, Bank1,
Bank2 & SIMM. Each bank consists of 2 sockets for 72 pins SIMM
module DRAM. Because of the 72 pins SIMM module is 32 bits width,
using 2pcs which can match a 64 bits system.

3-5

HARDWARE INSTALLATION

The total memory size is 8 - 768 MB.

For the DRAM installation position, please refer to Figure 3.1. Note that the
Pin 1 of SIMM module must match with the Pin 1 of SIMM socket when the
DRAM SIMM module is installed.

Insert the DRAM SIMM module into the SIMM socket at 45 degree angle.

If there is a wrong direction of Pin 1, the DRAM SIMM module couldn't be
inserted into socket completely.

After completely insert SIMM module into socket, then press the SIMM
module in vertical direction until the left and right metal holders can keep the
SIMM module standing up firmly.

DRAM configuration table:

(Bank2 and SIMM can not install at same time)

SIMM Bank0 Bank1 Bank2 TOTAL
4MB * 2pcs. 8MB
4MB * 2pcs. 8MB 16MB
4MB * 2pcs. 8MB 8MB 24MB
4MB * 2pcs. 8MB 16MB 32MB
4MB * 2pcs. 8MB 32MB 48MB
4MB * 2pcs. 8MB 64MB 80MB
4MB * 2pcs. 16MB 24MB
4MB * 2pcs. 16MB 16MB 40MB
4MB * 2pcs. 16MB 32MB 56MB
4MB * 2pcs. 16MB 64MB 88MB
4MB * 2pcs. 32MB 40MB

3-6

586SGX

SIMM Bank0 Bank1 Bank2 TOTAL
4MB * 2pcs. 32MB 32MB 72MB
4MB * 2pcs. 32MB 64MB 104MB
4MB * 2pcs. 64MB 72MB
4MB * 2pcs. 64MB 64MBMB 136MB
8MB * 2pcs. 16MB
8MB * 2pcs. 8MB 24MB
8MB * 2pcs. 8MB 8MB 32MB
8MB * 2pcs. 8MB 16MB 40MB
8MB * 2pcs. 8MB 32MB 56MB
8MB * 2pcs. 8MB 64MB 88MB
8MB * 2pcs. 16MB 32MB
8MB * 2pcs. 16MB 16MB 48MB
8MB * 2pcs. 16MB 32MB 64MB
8MB * 2pcs. 16MB 64MB 96MB
8MB * 2pcs. 32MB 48MB
8MB * 2pcs. 32MB 32MB 80MB
8MB * 2pcs. 32MB 64MB 112MB
8MB * 2pcs. 64MB 80MB
8MB * 2pcs. 64MB 64MB 144MB

16MB * 2pcs. 32MB
16MB * 2pcs. 8MB 40MB
16MB * 2pcs. 8MB 8MB 48MB
16MB * 2pcs. 8MB 16MB 56MB
16MB * 2pcs. 8MB 32MB 72MB
16MB * 2pcs. 8MB 64MB 104MB
16MB * 2pcs. 16MB 48MB
16MB * 2pcs. 16MB 16MB 64MB
16MB * 2pcs. 16MB 32MB 80MN
16MB * 2pcs. 16MB 64MB 112MB

3-7

HARDWARE INSTALLATION

SIMM Bank0 Bank1 Bank2 TOTAL

16MB * 2pcs. 32MB 64MB
16MB * 2pcs. 32MB 32MB 96MB
16MB * 2pcs. 32MB 64MB 128MB
16MB * 2pcs. 64MB 96MB
16MB * 2pcs. 64MB 64MB 160MB
32MB * 2pcs. 64MB
32MB * 2pcs. 8MB 72MB
32MB * 2pcs. 8MB 8MB 80MB
32MB * 2pcs. 8MB 16MB 88MB
32MB * 2pcs. 8MB 32MB 104MB
32MB * 2pcs. 8MB 64MB 136MB
32MB * 2pcs. 16MB 80MB
32MB * 2pcs. 16MB 16MB 96MB
32MB * 2pcs. 16MB 32MB 112MB
32MB * 2pcs. 16MB 64MB 144MB
32MB * 2pcs. 32MB 96MB
32MB * 2pcs. 32MB 32MB 128MB
32MB * 2pcs. 32MB 64MB 160MB
32MB * 2pcs. 64MB 128MB
32MB * 2pcs. 64MB 64MB 192MB
64MB * 2pcs. 128MB
64MB * 2pcs. 8MB 136MB
64MB * 2pcs. 8MB 8MB 144MB
64MB * 2pcs. 8MB 16MB 152MB
64MB * 2pcs. 8MB 32MB 168MB
64MB * 2pcs. 8MB 64MB 200MB
64MB * 2pcs. 16MB 144MB
64MB * 2pcs. 16MB 16MB 160MB
64MB * 2pcs. 16MB 32MB 172MB

3-8

586SGX

SIMM Bank0 Bank1 Bank2 TOTAL

64MB * 2pcs. 16MB 64MB 204MB
64MB * 2pcs. 32MB 160MB
64MB * 2pcs. 32MB 32MB 192MB
64MB * 2pcs. 32MB 64MB 224MB
64MB * 2pcs. 64MB 192MB

64MB * 2pcs. 64MB 64MB 256MB
128MB * 2pcs. 256MB
128MB * 2pcs. 8MB 264MB
128MB * 2pcs. 8MB 8MB 272MB
128MB * 2pcs. 8MB 16MB 280MB
128MB * 2pcs. 8MB 32MB 296MB
128MB * 2pcs. 8MB 64MB 328MB
128MB * 2pcs. 16MB 272MB
128MB * 2pcs. 16MB 16MB 288MB
128MB * 2pcs. 16MB 32MB 304MB
128MB * 2pcs. 16MB 64MB 336MB
128MB * 2pcs. 32MB 288MB
128MB * 2pcs. 32MB 32MB 320MB
128MB * 2pcs. 32MB 64MB 352MB
128MB * 2pcs. 64MB 320MB
128MB * 2pcs. 64MB 64MB 384MB

8MB 8MB
8MB 8MB 16MB
8MB 8MB 8MB 24MB
8MB 16MB 24MB
8MB 16MB 8MB 32MB
8MB 16MB 16MB 40MB
8MB 32MB 40MB
8MB 32MB 8MB 48MB

3-9

HARDWARE INSTALLATION

SIMM Bank0 Bank1 Bank2 TOTAL

8MB 32MB 16MB 56MB
8MB 32MB 32MB 72MB
8MB 64MB 72MB
8MB 64MB 8MB 80MB
8MB 64MB 16MB 88MB
8MB 64MB 32MB 104MB

8MB 64MB 64MB 136MB
16MB 16MB 32MB
16MB 16MB 16MB 48MB
16MB 32MB 48MB
16MB 32MB 16MB 64MB
16MB 32MB 32MB 80MB
16MB 64MB 80MB
16MB 64MB 16MB 96MB
16MB 64MB 32MB 108MB
16MB 64MB 64MB 144MB
32MB 32MB
32MB 32MB 64MB
32MB 32MB 32MB 96MB
32MB 64MB 96MB
32MB 64MB 32MB 128MB
32MB 64MB 64MB 160MB
64MB 64MB
64MB 64MB 126MB
64MB 64MB 64MB 252MB

3-10

586SGX

3.5. SRAM INSTALLATION

Sync. SRAM (Pipeline Burst SRAM)

If Sync SRAM Chip is installed, it consists of Pipeline Burst 1 Pc 64 K x 64
512KByte.

There is no jumper for cache size setting.

3.6. CPU INSTALLATION AND JUMPERS SETUP

The system speed depends on the frequency of CLOCK GENERATOR. The
user can change SW selection to set up the system speed to 60 or 66 or 75
MHz for 3.3V/2.5V Pentium Processor (90-233 MHz) / AMDK5(PR133 /
PR166) / AMD-K6(166/180/200(2.9V)/233(3.2V)), Cyrix / IBM 6x86 (PR150+
/ PR166+/ PR200+), Cyrix / IBM 6x86L (PR150+/PR166+/PR200+ (2.8V)),
Cyrix / IBM 6x86MX (PR166 (60x2.5 2.9V) / PR200 (66x2.5 2.9V) (75x2

2.9V)/ PR233 (66x3 2.9V) (75x2.5 2.9V) / PR266 (66x3.5 2.9V) (75x3

2.9V) (83x2.5 2.9V)).

The mainboard can use Pentium Processor, P54CT, MMX or P54CTB,
AMDK5, AMD-K6, Cyrix / IBM 6x86, CPU, and the CPU speed must match
with the frequency of CLOCK GEN. It will cause system hanging up if the
CLOCK GEN.'S frequency is faster than CPU's.

M

The CPU is a sensitive electric component and it can be easily
damaged by static electricity, so users must keep it away from
metal surface when the CPU is installed onto mainboard.

M

When the user installs the CPU on socket, please notice that the
PIN 1 of CPU is in the same corner as the PIN 1 of socket!

M Before the CPU is installed, the mainboard must be placed on a flat

plane in order to avoid being broken by the pressure of CPU installation.

3.7. CMOS RTC & ISA CFG CMOS SRAM

Built-in Real Time Clock (RTC) With 256B CMOS SRAM in SiS5595.

3.8. SPEAKER CONNECTOR INSTALLATION

3-11

HARDWARE INSTALLATION

There is a speaker in AT system for sound purpose. The 4 - Pins connector
SPK is used to connect speaker. The speaker can work well in both direction
of connector when it is installed to the connector SPK on mainboard.

3.9. ACPI LED CONNECTOR INSTALLATION

This mainboard uses the existing power LED as ACPI LED .The ACPI LED
will light on when system is power-on .The ACPI LED is off when the system
is power-off. The ACPI LED will blink when system is in Green mode.This
connector should be installed to ACPI LED jumper of the mainboard in
correct direction.

3.10. HARDWARE RESET SWITCH CONNECTOR INSTALLATION

The RESET switch on panel provides users with HARDWARE RESET
function which is almost the same as power-on/off. The system will do a cold
start after the RESET switch is pushed and released by user. The RESET
switch is a 2 PIN connector and should be installed to RST on mainboard.

3.11. GREEN FUNCTION INSTALLATION

There is one jumper for the purpose of power saving, GN , to indicate the
power saving function . This mainboard uses the existing power LED as
ACPI LED . If the ACPI LED is blinking, the system is in green mode. The

GN switch will force the system into green mode .

3.12. PERIPHERAL DEVICE INSTALLATION

After installation of the device and setup of the jumpers, the mainboard can
be mounted into the case and fixed by screw. To complete the mainboard
installation, the peripheral devices could be installed now. The basic system
needs a display interface card and a storage device.

If a PCI - Bus device is to be installed in the system, any one of three PCI ­Bus slots can be used for Slave or Master PCI - Bus device.

After installing the peripheral device, the user should check everything again
and prepare to power-on the system.

3-12

586SGX

4. BIOS CONFIGURATION

Award's BIOS ROM has a built-in Setup program that allows users to modify
the basic system configuration.

This type of information is stored in battery-backed CMOS SRAM so that it
retains the Setup information when the power is turned off.

4.1. ENTERING SETUP

Power ON the computer and press <Del> immediately will allow you to enter
Setup.

The other way to enter Setup is to power on the computer, when the below
message appears briefly at the bottom of the screen during the POST
(Power On Self Test), press <Del> Key or simultaneously press <Ctrl>, <Alt>,
and <Esc> keys.

Ÿ

Press DEL to enter SETUP.

If the message disappears before you respond and you still wish to enter
Setup, restart the system to try again by turning it OFF then ON or pressing
the "RESET" bottom on the system case.

You may also restart by simultaneously press <Ctrl>,<Alt>, and <Del> keys.

4-1

BIOS CONFIGURATION

4.2. CONTROL KEYS

Up arrow Move to previous item.
Down arrow Move to next item.
Left arrow Move to the item in the left hand.
Right arrow Move to the item in the right hand.
Esc key Main Menu - Quit and not save changes into CMOS

Status Page Setup Menu and Option Page Setup Menu -

Exit current page and return to Main Menu.
PgUp key Increase the numeric value or make changes.
PgDn key Decrease the numeric value or make changes.
F1 key General help, only for Status Page Setup Menu and

Option Page Setup Menu.
F2 key Change color from total 16 colors.
F3 key Calendar, only for Status Page Setup Menu.
F4 key Reserved.
F5 key Restore the previous CMOS value from CMOS, only for

Option Page Setup Menu.
F6 key Load the default CMOS value from BIOS default table,

only for Option Page Setup Menu.
F7 key Load the default.
F8 key Reserved.
F9 key Reserved.
F10 key Save all the CMOS changes, only for Main Menu.

4-2

586SGX

4.3. GETTING HELP

4.3.1. Main Menu

The on-line description of the highlighted setup function is displayed at the
bottom of the screen.

4.3.2. Status Page Setup Menu / Option Page Setup Menu

Press F1 to pop up a small help window that describes the appropriate keys
to use and the possible selections for the highlighted item. To exit the Help
Window press <Esc>.

4.4. THE MAIN MENU

Once you enter Award BIOS CMOS Setup Utility, the Main Menu (Figure 4.1)
will appear on the screen.

The Main Menu allows you to select setup functions and exit choices. Use
arrow keys to select among the items and press <Enter> to accept or enter
the sub-menu.

Figure 4.1: Main Menu

4-3

BIOS CONFIGURATION

• Standard CMOS setup

This setup page includes all the items in a standard compatible BIOS.

• BIOS features setup

This setup page includes all the items of Award special enhanced
features.

• Chipset features setup

This setup page includes all the items of chipset special features.

• Power management setup

This setup page includes all the items of Green function features.

• PNP/PCI configuration

This setup page includes all the items of PNP/PCI configuration features.

• Load BIOS defaults

BIOS defaults indicates the most appropriate value of the system
parameter which the system would be in safe configuration.

• Load setup defaults

BIOS defaults indicates the most appropriate value of the system
parameter which the system would be in safe configuration.

• Integrated Peripherals

This setup page includes all the items of peripherals features.

• Supervisor Password

Change, set, or disable password. It allows you to limit access to the
system and Setup, or just to Setup.

• User Password

Change, set, or disable password. It allows you to limit access to the
system.

• IDE HDD auto detection

4-4

586SGX

Automatically configure hard disk parameter.

• Save & exit setup

Save CMOS value changes to CMOS and exit setup.

• Exit without save

Abandon all CMOS value changes and exit setup.

4.5. STANDARD CMOS SETUP MENU

The items in Standard CMOS Setup Menu (Figure 4.2) are divided into 9
categories. Each category includes no, one or more than one setup items.
Use the arrows to highlight the item and then use the <PgUp> or <PgDn>
keys to select the value you want in each item.

: Wed, Jan 22 1998
: 11 : 08 : 12

Drive A
Drive B

31744 K

: No Errors

Figure 4.2: Standard CMOS Setup Menu

4-5

BIOS CONFIGURATION

•

Date
The date format is <day>, <date> <month> <year>. Press <F3> to show

the calendar.

Day The day, from Sun to Sat, determined by the BIOS and is

display-only

Date The date, from 1 to 31 (or the maximum allowed in the

month)
Month The month, Jan. through Dec.
Year The year, from 1994 through 2079

•

Time
The time format in <hour> <minute> <second>.

The time is calculated base on the 24-hour military-time clock.
For example, 1 p.m. is 13:00:00.

•

Primary HDDs / Secondary HDDs
The category identify the types of hard disk from drive C to drive F

4 devices that has been installed in the computer.
There are three options for definable type; User, Auto and None .
Type User is user-definable; and type Auto means automatically

detecting HDD's type and None means No IDE HDD installed.
If you select Type User, related information is asked to be entered to the

following items.
Enter the information directly from the keyboard and press <Enter>.
Those information should be provided in the documentation from your

hard disk vendor or the system manufacturer.

4-6

586SGX

CYLS. number of cylinders
HEADS number of heads
PRECOMP write precomp
LANDZONE landing zone
SECTORS number of sectors

If a hard disk has not been installed select NONE and press <Enter>.

•

Drive A type / Drive B type

The category identify the types of floppy disk drive A or drive B that has
been installed in the computer.

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

capacity.

1.2M, 5.25 in. 5-1/4 inch AT-type high-density drive; 1.2 megabyte

capacity (3-1/2 inch when 3 Mode is Enabled).

720K, 3.5 in. 3-1/2 inch double-sided drive; 720 kilobyte capacity

1.44M, 3.5 in. 3-1/2 inch double-sided drive; 1.44 megabyte

capacity.

2.88M, 3.5 in. 3-1/2 inch double-sided drive; 2.88 megabyte

capacity.

•

Floppy 3 Mode Support (for Japan Area)

Disable Normal Floppy Drive.
Drive A Drive A is 3 mode Floppy Drive.
Drive B Drive B is 3 mode Floppy Drive.

4-7

BIOS CONFIGURATION

Both Drive A & B are 3 mode Floppy Drive.

•

Video

The category detects the type of adapter used for the primary system
monitor that must match your video display card and monitor.

Although secondary monitors are supported, you do not have to select
the type in setup.

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

EGA, VGA, SVGA, or 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

•

Halt on
The category determines whether the computer will stop if an error is

detected during power up.

NO Errors The system boot will not be stopped for any error

that may be detected

All Errors Whenever the BIOS detects a non-fatal error, the

system will be stopped and you will be prompted

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 keyboard or

disk error; it will stop for all other errors

•

Memory

4-8

586SGX

The category is display-only which is determined by POST (Power On
Self Test) of the BIOS.

Base Memory

The POST of the BIOS will determine the amount of base (or
conventional) memory installed in the system.

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

Extended Memory

The BIOS determines how much extended memory is present
during the POST.

This is the amount of memory located above 1 MB in the CPU's
memory address map.

Expanded Memory

Expanded Memory in memory defined by the Lotus / Intel /
Microsoft (LIM) standard as EMS.

Many standard DOS applications can not utilize memory above
640, the Expanded Memory Specification (EMS) swaps
memory which not utilized by DOS with a section, or frame, so
these applications can access all of the system memory.

Memory can be swapped by EMS is usually 64K within 1
MB or memory above 1 MB, depends on the chipset design.

Expanded memory device driver is required to use memory as
Expanded Memory.

Other Memory

This refers to the memory located in the 640 to 1024 address
space. This is memory that can be used for different
applications.

DOS uses this area to load device drivers to keep as much

4-9

BIOS CONFIGURATION

base memory free for application programs. Most use for this
area is Shadow RAM.

4-10

586SGX

Typematic Rate Setting

4.6. BIOS FEATURES SETUP

VGA Boot From
Boot Up Floppy Seek

Boot Up NumLock Status
Memory Parity/ECC Check

Typematic Rate (Chars/Sec)
Typematic Delay (Msec)

Security Option

OS Select For DRAM >64MB

•

Virus Warning

: Disabled

Figure 4.3: BIOS Features Setup

This category flashes on the screen. During and after the system boots
up, any attempt to write to the boot sector or partition table of the hard
disk drive will halt the system and the following error message will
appear, in the mean time, you can run anti-virus program to locate the
problem.

The default value is Disabled.

Enabled Activate automatically when the system boots up causing

a warning message to appear when anything attempts to
access the boot sector or hard disk partition table.

Disabled No warning message appears when anything attempts to

access the boot sector or hard disk partition table.

4-11

BIOS CONFIGURATION

•

CPU Internal Cache / External Cache
These two categories speed up memory access. However, it depends on

CPU / chipset design.
The default value is Enabled.

Enabled Enable cache function.
Disabled Disable cache function.

•

Quick Power On Self Test
This category speeds up Power On Self Test (POST) after you power on

the computer. If it set to Enable, BIOS will skip some check items during
POST.

The default value is Enabled.

Enabled Enable quick POST.
Disabled Normal POST.

•

Boot Sequence
This category determines which drive computer searches first for the

disk operating system (i.e., DOS).
The default value is A,C,SCSI.

A,C,SCSI System will first search for floppy disk drive then

hard disk (C) drive and SCSI drive.

C,A,SCSI System will first search for hard disk (C) drive then

floppy disk drive and SCSI drive.

C,CDROM,A System will first search for hard disk (C) drive then

CDROM drive and floppy disk drive.

CDROM,C,A System will first search for CDROM drive then hard

disk (C) drive and floppy disk drive.

D,A,SCSI System will first search for hard disk (D) drive then

floppy disk drive and SCSI drive.

E,A,SCSI System will first search for hard disk (E) drive then

floppy disk drive and SCSI drive.

4-12

586SGX

F,A,SCSI System will first search for hard disk (F) drive then

floppy disk drive and SCSI drive.

SCSI,A,C System will first search for SCSI drive then floppy

disk drive and hard disk (C) drive .

SCSI,C,A System will first search for SCSI drive and hard disk

(C) drive then floppy disk drive .
C only System will only search for hard disk (C) drive.
LS/ZIP,C System will first search for floppy disk drive (LS) or

ZIP drive then hard disk (C) drive.

•

Swap Floppy Drive
The default value is Disabled.

Enabled Floppy A & B will be swapped under DOS.
Disabled Floppy A & B will be normal definition.

•

VGA Boot From
The default value is AGP.

AGP Select the system boot from AGP mode.
PCI Select the system boot from PCI mode.

•

Boot Up Floppy Seek

During POST, BIOS will determine if the floppy disk drive installed is 40
or 80 tracks. 360 type is 40 tracks while 720 , 1.2 and 1.44 are all 80
tracks.

The default value is Enabled.

Enabled BIOS searches for floppy disk drive to determine if it is 40

or 80 tracks. Note that BIOS can not tell from 720, 1.2 or

1.44 drive type as they are all 80 tracks.

Disabled 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 360 .

4-13

BIOS CONFIGURATION

•

Boot Up NumLock Status
The default value is On.

On Keypad is number keys.
Off Keypad is arrow keys.

•

Memory Parity / ECC Check
The default value is Disabled.

Enabled Enable Memory Parity / ECC Check.
Disabled Disable Memory Parity / ECC Check.

•

Typematic Rate Setting
The default value is Disabled.

Enabled Enable Keyboard Typematic rate setting.
Disabled Disable Keyboard Typematic rate setting.

•

Typematic Rate (Chars / Sec)
The default value is 6.

6-30 Set the maximum Typematic rate from 6 chars. per

second to 30 chars. per second.

•

Typematic Delay (Msec)
The default value is 250.

250-1000 Set the time delay from first key to repeat the same key

in to computer.

•

Security option
The default value is Setup.

Setup The system will boot and access to Setup will be denied if

the correct password is not entered at the prompt.

4-14

586SGX

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

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

M

To disable security, select PASSWORD SETTING at Main Menu and
then you will be asked to enter password. If the user does not type
anything and just press <Enter>, it will disable security. Once the
security is disabled, the system will boot and you can enter Setup
freely.

•

PCI/VGA Palette Snoop
The default value are Disabled.

Enabled For having Video Card on ISA Bus and VGA Card on PCI

Bus.

Disabled For VGA Card only.

•

OS Select For DRAM>64MB
The default value is Non-OS2.

Non-OS2 Using non-OS2 operating system.
OS2 Using OS2 operating system and DRAM>64MB.

•

Video BIOS Shadow
It determines whether video BIOS will copied to RAM, however, it is

optional from chipset design. Video Shadow will increase the video
speed.

The default value is Enable.

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

•

C8000 - CFFFF Shadow / D0000 - DFFFF Shadow
These categories determine whether optional ROM will be copied to

4-15

RAM by 16 byte. The default value are Disabled.

: Disabled

Memory Hole at 15M-16M

: 3.61 V

: Disabled

NA# Enable

Enhanced Memory Write

MA Current Rating

CAS Precharge Time (EDO)

SDRAM Wait State Control

: Auto

Temperature Control

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

4.7. CHIPSET FEATURES SETUP

BIOS CONFIGURATION

: Enabled

ISA Bus Clock Frequency

CAS# Pulse Width for FP

CPU to PCI Burst Mem. WR

: 7.159MHz

: X-2-2-2

: 2T

: Disabled

Figure 4.4: Chipset Features Setup

*

This item shows up when Cyrix CPU is installed.

•

RAS Pulse width Refresh
The default value is 7T

4T Set RAS Pulse width Refresh to 4T.
5T Set RAS Pulse width Refresh to 5T.
6T Set RAS Pulse width Refresh to 6T.

: 4500 RPM

4-16

586SGX

7T Set RAS Pulse width Refresh to 7T.

•

RAS Precharge Time
The default value is 5T

2T Set RAS Precharge Time to 2T.
3T Set RAS Precharge Time to 3T.
4T Set RAS Precharge Time to 4T.
5T Set RAS Precharge Time to 5T.

•

RAS to CAS Delay
The default value is 5T

2T Set RAS to CAS Delay to 2T.
3T Set RAS to CAS Delay to 3T.
4T Set RAS to CAS Delay to 4T.
5T Set RAS to CAS Delay to 5T.

•

CPU to PCI Post Write
The default value is 4T

3T Set CPU to PCI Post Write to 3T.
4T Set CPU to PCI Post Write to 4T.

Disabled Set CPU to PCI Post Write to Disabled.

•

ISA Bus Clock Frequency
The default value is 7.159MHz

PCICLK/3 Set ISA Bus Clock Frequency to PCICLK/3.
PCICLK/4 Set ISA Bus Clock Frequency to PCICLK/4.

7.159MHz Set ISA Bus Clock Frequency to 7.159MHz.

•

NA# Enable
The default value is Disabled

4-17

Enabled Enabled NA#.

Disabled Disabled NA#.

•

SDRAM CAS Latency
The default value is 3T

2T Set SDRAM CAS Latency to 2T.
3T Set SDRAM CAS Latency to 3T.

•

SDRAM WR Retire Rate
The default value is X-2-2-2

X-1-1-1 Set SDRAM WR Retire Rate to X-1-1-1.
X-2-2-2 Set SDRAM WR Retire Rate to X-2-2-2.

•

SDRAM Wait State Control
The default value is 1WS

0WS Set SDRAM Wait State Control to 0WS.
1WS Set SDRAM Wait State Control to 1WS.

BIOS CONFIGURATION

•

RAMW# Assertion Timing
The default value is 3T

2T Set RAMW# Assertion Timing to 2T.
3T Set RAMW# Assertion Timing to 3T.

•

CAS Precharge Time EDO
The default value is 2T

1T CAS Precharge Time (EDO) 1T.
2T CAS Precharge Time (EDO) 2T.

1T/2T CAS Precharge Time (EDO) 1T/2T.

•

CAS# Pulse Width for EDO

4-18

586SGX

The default value is 2T.

1T CAS# Pulse Width (EDO) 1T.
2T CAS# Pulse Width (EDO) 2T.

•

CAS Precharge Time FP
The default value is 2T

1T CAS Precharge Time (FP) 1T.
2T CAS Precharge Time (FP) 2T.

1T/2T CAS Precharge Time (FP) 1T/2T.

•

CAS# Pulse Width for FP
The default value is 2T

1T CAS# Pulse Width (FP) 1T.
2T CAS# Pulse Width (FP) 2T.

•

Enhanced Memory Write
The default value is Disabled.

Enabled Enabled Enhanced Memory Write .

Disabled Disabled Enhanced Memory Write.

•

Read Prefetch Memory RD
The default value is Disabled.

Enabled Enabled Read Prefetch Memory RD.

Disabled Disabled Read Prefetch Memory RD.

• CPU to PCI Burst Mem. WR

The default value is Disabled.

Disabled Disabled CPU to PCI Burst Mem. WR.

4-19

Enabled Enabled CPU to PCI Burst Mem. WR.

Disabled

Disabled

• MA Current Rating

The default value is 8mA.

8mA Set MA Current Rating is 8mA.

16mA Set MA Current Rating is 16mA.

• AGP Aperture Size

The default value is 64MB.

4MB Set AGP Aperture Size to 4MB.
8MB Set AGP Aperture Size to 8MB.
16MB Set AGP Aperture Size to 16MB.
32MB Set AGP Aperture Size to 32MB.
64MB Set AGP Aperture Size to 64MB.
128MB Set AGP Aperture Size to 128MB.
256MB Set AGP Aperture Size to 256MB.

• Linear Mode SRAM Support

BIOS CONFIGURATION

The default value is

Enabled Enable Linear Mode SRAM Support.

Disabled.

Disable Linear Mode SRAM Support.

• System BIOS Cacheable

The default value is

Enabled Enable System BIOS cacheable.

Enabled.

Disable System BIOS cacheable.

• Video BIOS Cacheable

The default value is

Enabled Enable video BIOS cacheable.

Enabled.

4-20

586SGX

Disabled

Disabled

Disable video BIOS cacheable.

• Memory Hole at 15M-16M

The default value is Disabled .

Normal Setting.

Enabled Set Address=15-16MB relocate to ISA BUS.

• Temperature Control

The default value is Auto.

Auto Monitors CPU Temp. automatically.

65°C / 149°F Monitor CPU Temp. at 65°C / 149°F, if Temp. >

65°C / 149°F will cause system stop for a few
Secs.& slow down CPU speed.

70°C / 158°F Monitor CPU Temp. at 70°C / 158°F, if Temp. >

70°C / 158°F will cause system stop for a few Secs.
& slow down CPU speed.

75°C / 167°F Monitor CPU Temp. at 75°C / 167°F, if Temp. >

75°C / 167°F will cause system stop for a few Secs.
& slow down CPU speed.

80°C / 176°F Monitor CPU Temp. at 80°C / 176°F, if Temp. >

80°C / 176°F will cause system stop for a few Secs.
& slow down CPU speed.

• Current CPUFAN Speed

Detect CPU Fan speed status automatically.

• Current CPU Vcore ,+3.3V ,+5V ,+12V

Detect system’ s 4 positive voltage status automatically.

4-21

BIOS CONFIGURATION

** PM Timers **

** PM Events **

VGA Activity

CPUFAN Off In Susp.

Disabled

V/H SYNC+Blank

DPMS Supported

4.8. POWER MANAGEMENT SETUP

Doze Speed (div by)
Stdby Speed (div by)

Standby Mode
Suspend Mode

HDD Ports Activity
COM Ports Activity : Disabled

IRQ 3,4,5,6,7,9,A,B,D,E,F,NMI

Figure 4.5: Power Management Setup

• Power Management

The default value is Enabled.

Enabled Enable Green function.

Disable Green function.

Please disable Green Function for Non-S CPU in OS/2, Unix, Window
NT & Novell system.

• Video off Method

The default value is DPMS Supported.

BIOS will turn off V/H-SYNC when gets into
Green mode for Green monitor power saving.

Blank Screen BIOS will only black monitor when gets into

Green mode.
BIOS will use DPMS Standard to control VGA
card. (The Green type VGA card will turn off V/H­SYNC automatically.)

4-22

586SGX

• Doze Speed (div by)

The default value is 2/8.

1/8 – 8/8 Set Doze Speed from 1/8 to 8/8.

• Stdby Speed (div by)

The default value is 1/8.

1/8 – 8/8 Set Stdby Speed from 1/8 to 8/8.

• HDD Off After

The default value is Disable.

Disabled Disable HDD Off After.
1min-15min Set HDD timer to get into power down mode.

• Doze Mode

The default value is Disable.

Disable Disable Standby Mode.
10 sec-4 hours Setup the timer to enter Doze Mode.

• Standby Mode

The default value is Disable.

Disable Disable Standby Mode.
10 sec-4 hours Setup the timer to enter Standby Mode.

• Suspend Mode

The default value is Disable.

Disable Disable Suspend Mode.
10 sec-4 hours Setup the timer to enter Suspend Mode.

4-23

• HDD Ports Activity

The default value is Disabled.

Disabled Disable HDD Ports Activity.
Enabled Enable HDD Ports Activity.

• COM Ports Activity

The default value is Disabled.

Disabled Disable COM Ports Activity.
Enabled Enable COM Ports Activity.

• LPT Ports Activity

The default value is Disabled.

Disabled Disable LPT Ports Activity.
Enabled Enable LPT Ports Activity.

• VGA Activity

The default value is Disabled.

Disabled Disable VGA Activity.
Enabled Enable VGA Activity.

BIOS CONFIGURATION

• IRQ 3,4,5,6,7,9,A,B,D,E,F,NMI

The default value is Disabled.

Disabled Disable this function.
Enabled Enable monitor IRQ 3,4,5,6,7,9,A,B,D,E,F,NMI for

Green event.

• CPUFan Off In Susp.

The default value is Enabled.

Disabled Disable this function.
Enabled Stop CPU FAN when entering Suspend mode.

4-24

586SGX

PNP/PCI CONFIGURATION

IRQ-5 assigned to

IRQ-10 assigned to

IRQ-14 assigned to

DMA-1 assigned to

DMA-6 assigned to

Secondary IDE INT#

4.9.PNP/PCI CONFIGURATION

IRQ-4 assigned to

: PCI/ISA PnP

DMA-0 assigned to

DMA-5 assigned to

DMA-7 assigned to

Figure 4.6: PCI Slot Configuration

Primary IDE INT#

•

Resources Controlled By

The default value is Manual.
Manual Set Resources Controlled By Manual.
Auto Set Resources Controlled By Auto.

•

Reset Configuration Data

The default value is Disabled.
Enabled Enabled Reset Configuration Data.
Disabled Disabled Reset Configuration Data.

4-25

BIOS CONFIGURATION

• IRQ (3,4,5,7,9,10,11,12,14,15), DMA(0,1,3,5,6,7) assigned to

The default value is "Legacy ISA" or "PCI/ISA PnP".
Legacy ISA The resource is used by Legacy ISA device.

PCI/ISA PnP The resource is used by PCI/ISA PnP device (PCI or

ISA).

•

PCI IDE IRQ Map To

PCI-AUTO Map PCI IDE IRQ to PCI slot automatically.

ISA Map PCI IDE IRQ to ISA slot.

•

Primary/Secondary IDE INT#

A Set INTA for primary/secondary PCI IDE.
B Set INTB for primary/secondary PCI IDE.
C Set INTC for primary/secondary PCI IDE.
D Set INTD for primary/secondary PCI IDE.

4-26

586SGX

4.10. LOAD BIOS DEFAULTS

Figure 4.7: Load BIOS Defaults

•

Load BIOS Defaults

SUPERVISOR PASSWORD

To load BIOS defaults value to CMOS SRAM, enter "Y". If not, enter "N".

4-27

4.11. LOAD SETUP DEFAULTS

Figure 4.8: Load Setup Defaults

•

Load SETUP Defaults

BIOS CONFIGURATION

SUPERVISOR PASSWORD

To load SETUP defaults value to CMOS SRAM, enter "Y". If not, enter

"N".

M

If there is any problem occurred, loading BIOS DEFAULTS step is

recommended.

4-28

586SGX

4.12. INTEGRATED PERIPHERALS

Figure 4.9: Integrated peripherals

: 0: 0: 0

* This item will show up if On board Parallel Mode set to ECP or ECP/EPP.

** This item will show up if On board Parallel Mode set to EPP/SPP or

ECP/EPP.

•

Internal PCI/IDE

The default value is Both.

Disabled Disabled Internal PCI/IDE .
Primary Set Internal PCI/IDE to Primary.
Secondary Set Internal PCI/IDE to Secondary .
Both Set Internal PCI/IDE to Both.

4-29

BIOS CONFIGURATION

•

IDE Primary Master PIO (for onboard IDE 1st channel).

The default value is Auto.

Auto BIOS will automatically detect the IDE HDD Accessing

mode.

Mode0~4 Manually set the IDE Accessing mode.

•

IDE Primary Slave PIO (for onboard IDE 1st channel).

The default value is Auto.

Auto BIOS will automatically detect the IDE HDD Accessing

mode.

Mode0~4 Manually set the IDE Accessing mode.

•

IDE Secondary Master PIO (for onboard IDE 2nd channel).

The default value is Auto.

Auto BIOS will automatically detect the IDE HDD Accessing

mode.

Mode0~4 Manually set the IDE Accessing mode.

•

IDE Secondary Slave PIO (for onboard IDE 2nd channel).

The default value is Auto.

Auto BIOS will automatically detect the IDE HDD Accessing

mode.

Mode0~4 Manually set the IDE Accessing mode.

•

Primary Master UltraDMA (for onboard IDE 1st channel).

The default value is Auto.

Auto BIOS will automatically set the IDE HDD to Ultra

DMA/33 Mode.

Disabled Disable Ultra DMA HDD Function.

4-30

586SGX

•

Primary Slave UltraDMA (for onboard IDE 1st channel).

The default value is Auto.

Auto BIOS will automatically set the IDE HDD to Ultra

DMA/33 Mode.

Disabled Disable Ultra DMA HDD Function.

•

Secondary Master UltraDMA (for onboard IDE 2nd channel).

The default value is Auto.

Auto BIOS will automatically set the IDE HDD to Ultra

DMA/33 Mode.

Disabled Disable Ultra DMA HDD Function.

•

Secondary Slave UltraDMA (for onboard IDE 2nd channel).

The default value is Auto.

Auto BIOS will automatically set the IDE HDD to Ultra

DMA/33 Mode.

Disabled Disable Ultra DMA HDD Function.

•

IDE Burst Mode

The default value is Disabled.

Enabled Enable IDE Burst Mode.
Disabled Disable IDE Burst Mode.

•

IDE Data Port Post Write

The default value is Disabled.

Enabled Enable IDE Data Port Post Write.
Disabled Disable IDE Data Port Post Write.

•

IDE HDD Block Mode

The default value is Enabled.

Enabled Enable IDE HDD Block Mode.
Disabled Disable IDE HDD Block Mode.

4-31

BIOS CONFIGURATION

•

Onboard FDD Controller

The default value is Enabled.

Enabled Enable onboard FDD port.
Disabled Disable onboard FDD port.

• Onboard Serial Port 1

The default value is 3F8/IRQ4.

Auto BIOS will automatically setup the port 1 address.
3F8/IRQ4 Enable onboard Serial port 1 and address is 3F8.
2F8/IRQ3 Enable onboard Serial port 1 and address is 2F8.
3E8/IRQ4 Enable onboard Serial port 1 and address is 3E8.
2E8/IRQ3 Enable onboard Serial port 1 and address is 2E8.
Disabled Disable onboard Serial port 1.

• Onboard Serial Port 2

The default value is 2F8/IRQ3.

Auto BIOS will automatically setup the port 2 address.
3F8/IRQ4 Enable onboard Serial port 2 and address is 3F8.
2F8/IRQ3 Enable onboard Serial port 2 and address is 2F8.
3E8/IRQ4 Enable onboard Serial port 2 and address is 3E8.
2E8/IRQ3 Enable onboard Serial port 2 and address is 2E8.
Disabled Disable onboard Serial port 2.

•

Onboard Parallel port

The default value is 378/IRQ7.

378/IRQ7 Enable onboard LPT port and address is 378/IRQ7.
278/IRQ5 Enable onboard LPT port and address is 278/IRQ5.
3BC/IRQ7 Enable onboard LPT port and address is 3BC/IRQ7.
Disabled Disable onboard LPT port.

4-32

586SGX

•

Onboard Parallel Mode

The default value is SPP.

SPP Using Parallel port as Normal Printer Port.
EPP/SPP Using Parallel port as Enhanced Parallel Port / Normal

Printer Port.
ECP Using Parallel port as Extended Capabilities Port.
ECP/EPP Using Parallel port as Extended Capabilities Port

mode/Enhanced Parallel Port.

¯

As ECP,ECP/EPP Mode is selected, two options can be defined:

1. ECP Mode use DMA: 3

2. ECP Mode use DMA: 1

¯¯

•

As EPP/SPP, ECP/EPP Mode is Selected, two options can be

defined:

1. Parallel Port EPP Type : EPP 1.9

2. Parallel Port EPP Type : EPP 1.7

USB Controller
The default value is Enabled.

Disabled Disable USB Controller.
Enabled Enable USB Controller.

•

USB Keyboard Support
The default value is Disabled.

Disabled Disable USB Keyboard Support.
Enabled Enable USB Keyboard Support.

•

Power Button Over Ride
The default value is Instant Off.

Instant Off Press Soft PWR switch ON/OFF to POWER ON/OFF
Delay 4 Sec. Press Soft PWR switch Over 4sec. to POWER OFF.

4-33

•

Ring Power Up Control
The default value is Enabled.

Disabled Disable Modem Ring-on .
Enabled Enable Modem Ring-on .

• Ring Power Up Control

The default value is Enabled.

Disabled Disable Modem Ring-on .
Enabled Enable Modem Ring-on .

•

KB Power ON Password

BIOS CONFIGURATION

Enter

Enter from 1 to 8 characters to set the Keyboard

Password.

• Power Up by Alarm

The default value is Disabled.

Disabled Disable this function.
Enabled Enable alarm function to POWER ON system.

If Power Up by Alarm is Enabled.

Month Alarm : NA,1~12
Date of Month Alarm : 0~31
Week Alarm : *** SUN MON TUE WED THU FRI SAT

***

Off Off Off Off Off Off Off
Time ( hh: mm: ss)
Alarm :

(0~23) : (0~59) : (0~59)

4-34

586SGX

4.13. SUPERVISOR / USER PASSWORD

When you select this function, the following message will appear at the
center of the screen to assist you in creating a password.

ENTER PASSWORD

SUPERVISOR PASSWORD

Figure 4.10: Password Setting

Type the password, up to eight characters, and press <Enter>. The
password typed now will clear previously entered password from CMOS
memory.

You will be asked to confirm the password. Type the password again and
press <Enter>. You may also press <Esc> to abort the selection and not
enter a password.

To disable password, just press <Enter> when you are prompted to enter
password. A message will confirm the password being disabled.

4-35

BIOS CONFIGURATION

Once the password is disabled, the system will boot and you can enter Setup
freely.

PASSWORD DISABLED

If you select System at Security Option of BIOS Features Setup Menu, you
will be prompted for the password every time the system is rebooted or any
time you try to enter Setup.

If you select Setup at Security Option of BIOS Features Setup Menu, you will
be prompted only when you try to enter Setup.

4-36

586SGX

ESC

: Skip

4.14. IDE HDD AUTO DETECTION

OPTIONS

Note: some OSes (like SCO-UNIX) must use "NORMAL" for installation

Figure 4.11: IDE HDD Auto Detection

Type "Y" will accept the H.D.D. parameter reported by BIOS.

Type "N" will keep the old H.D.D. parameter setup. If the hard disk cylinder
NO. is over 1024, then the user can select LBA mode or LARGE mode for
DOS partition larger than 528 MB.

4-37

BIOS CONFIGURATION

4.15. SAVE & EXIT SETUP

SUPERVISOR PASSWORD

Figure 4.12: Save & Exit Setup

Type "Y" will quit the Setup Utility and save the user setup value to RTC
CMOS SRAM.

Type "N" will return to Setup Utility.

4-38

586SGX

4.16. EXIT WITHOUT SAVING

SUPERVISOR PASSWORD

Figure 4.13: Exit Without Saving

Type "Y" will quit the Setup Utility without saving to RTC CMOS SRAM.

Type "N" will return to Setup Utility.

4-39

FCC Compliance Statement:

Per FCC Part 2 Section 2. 1077(a)

Responsible Party Name: G.B.T. INC.

Address: 18305 Valley Blvd., Suite#A

LA Puent, CA 91744

Phone/Fax No: [phone]/ [phone]

hereby declares that the product

Product Name:

Model Number:

Mother Board

Conforms to the following specifications:

FCC Part 15, Subpart B, Section 15.107(a) and Section 15.109(a),

Class B Digital Device

Supplementary Information:

This device complies with part 15 of the FCC Rules. Operation is subject to the

following two conditions: (1) This device may not cause harmful

and (2) this device must accept any inference received, including

that may cause undesired operation.

Representative Person's Name: ERIC LU

Signature:

Date: JAN. 23, 1997

586SGM

This equipment has been tested and found to
comply with 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 in
residential installations. This equipment
generates, uses, and can radiate radio
frequency energy, and if not installed and used
in accordance with the instructions, may
cause harmful interference to radio

Eric Lu

communications. However, there is no
guarantee that interference will not occur in a

particular installation. If this equipment does
cause interference to radio or television equipment 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

-Move the equipment away from the receiver

-Plug the equipment into an outlet on a circuit different from that to
which the receiver is connected

-Consult the dealer or an experienced radio/television technician for
additional suggestions

You are cautioned that any change or modifications to the equipment not
expressly approve by the party responsible for compliance could void Your
authority to operate such equipment.

This device complies with Part 15 of the FCC Rules. Operation is subjected
to the following two conditions 1) this device may not cause harmful
interference and 2) this device must accept any interference received,
including interference that may cause undesired operation.