Gigabyte GA-686SLX User Manual

GA – 686SLX

USER'S MANUAL

1. System power on by PS/2 Mouse: If you are using ATX power
supply, you are able to power on the system by double
clicking the right or left button of y our PS/2 Mouse.

2. System power on by Keyboard: If your ATX power supply
supports 1 ampere 5V Stand-By function, you can power on
your system by entering password from keyboard.

3. Modem Ring-On on COM B.

4. Wake-Up on LAN. (on JP6

5. Supports 3 or 4 steps ACPI LED selectable.(on JP7)

Pentium

REV. 1.0 First Edition

))))



II Processor MAINBOARD

R-01-01-071212

GA-686SLX

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

Third-party brands and names are the property of thei r respective owners.

November 11, 1997 Taipei, Taiwan

1

Quick Installation Guide

I. Quick Installation Guide :

CPU SPEED SE TUP

The system's speed is fixed to 66.6MHz. The user can change the DIP
SWITCH (SW) selection to set up the CPU speed for 200 - 633MHz
processor.

The CPU speed MUST match with the frequency RATIO. It will cause system
hanging up if the frequency RATIO is hi gher than that of CPU.

DIP SWITCH (SW)

1 2 3 4

OFF ON OFF OFF 3 66 200

ON ON OFF OFF 3.5 66 233

OFF OFF ON OFF 4 66 266

ON OFF ON OFF 4.5 66 300

OFF ON ON OFF 5 66 333

ON ON ON OFF 5.5 66 366

FREQ.

RATIO

EXT.CLK.

MHz

INT.CLK.

MHz

CPU Type

Pentium II 200 MHz

Pentium II 233 MHz

Pentium II 266 MHz

Pentium II 300 MHz

Pentium II 333 MHz

Pentium II 366 MHz

2

GA-686SLX

1. Pentium II 200 MHz

4 3 2

1

ON

2. Pentium II 233 MHz

PIIX4

GA-686SLX

adaptec

AIC-7880P

INTEL
440LX

4 3 2

INTEL
440LX

PIIX4

1

ON

GA-686SLX

adaptec

AIC-7880P

3

3. Pentium II 266 MHz

4 3 2

1

ON

4. Pentium II 300 MHz

PIIX4

GA-686SLX

adaptec

AIC-7880P

Quick Installation Guide

INTEL
440LX

4 3 2

INTEL
440LX

PIIX4

1

ON

GA-686SLX

adaptec

AIC-7880P

4

GA-686SLX

5. Pentium II 333 MHz

4 3 2

1

ON

6. Pentium II 366 MHz

PIIX4

GA-686SLX

adaptec

AIC-7880P

INTEL
440LX

4 3 2

INTEL
440LX

PIIX4

1

ON

GA-686SLX

adaptec

AIC-7880P

5

II. Jumper setting :

PWR : Power LED Connector

1

Pin No. Function

LED (+)

1

NC

2

LED (-)

3

PIIX4

Quick Installation Guide

INTEL
440LX

GA-686SLX

SPK : Speaker Connector

1

Pin No.

Function

1

VCC

2

NC

3

NC

4

Data

GA-686SLX

PIIX4

adaptec

AIC-7880P

adaptec

AIC-7880P

INTEL
440LX

6

GA-686SLX

p

y

p

g

RST : Reset Switch

INTEL
440LX

Open :
Normal o

eration.

GA-686SLX

Close :
For Hardware
Reset S

stem

GN : Green Function Switch

Open :
Normal o

Close :

Enterin
Mode

eration.

Green

PIIX4

GA-686SLX

PIIX4

adaptec

AIC-7880P

adaptec

AIC-7880P

INTEL
440LX

7

HD : IDE Hard Disk Active LED

1

Pin No. Function

1

LED (+)
LED (-)

2

PIIX4

Quick Installation Guide

INTEL
440LX

GA-686SLX

Soft PWR : Soft Power Connector

1

Pin No. Function

1

GND

Ctrl-signal

2

PIIX4

GA-686SLX

adaptec

AIC-7880P

adaptec

AIC-7880P

INTEL
440LX

8

GA-686SLX

y

(

)

y

POWER : Power Connector

1

Function

Pin No.

3,5,7,13,

GND

15,16,17

VCC(+5V)

4,6,19,20
10
12
18
8
9
14

+12V

-12V

-5V

Power Good

5V SB
PS-ON

PIIX4

GA-686SLX

PS/2 Mouse / Keyboard Connector

PS/2 Mouse

adaptec

AIC-7880P

INTEL
440LX

PS/2 Ke

board

PS/2 Mouse/Keyboard

Pin No.

Function
Ke

1

Data

2

NC
GND

3

VCC

4
5Key Clock.
6NC

+5V

PIIX4

GA-686SLX

adaptec

AIC-7880P

9

INTEL
440LX

J2 : CPU Cooling Fan Power Connector

1

Pin No. Function

1

GND

2

+12V

SENSE

3

PIIX4

Quick Installation Guide

INTEL
440LX

GA-686SLX

IDE1: For Primar y IDE port

RED LINE

1

GA-686SLX

PIIX4

adaptec

AIC-7880P

adaptec

AIC-7880P

INTEL
440LX

1

1

1

1
1

10

GA-686SLX

IDE2: For Secondary IDE port

RED LINE

1

J7 : FLOPPY PORT

RED LINE

1

PIIX4

GA-686SLX

PIIX4

adaptec

AIC-7880P

INTEL
440LX

INTEL
440LX

1

1

1

1
1

GA-686SLX

adaptec

AIC-7880P

11

1

1

1

1
1

ULTRA SCSI : ON BOARD ULTRA SCSI PORT

RED LINE

1

PIIX4

Quick Installation Guide

INTEL
440LX

GA-686SLX

adaptec

AIC-7880P

1

1

1

ULTRA WIDE SCSI : ON BOARD ULTRA WIDE SCSI PORT

1

INTEL
440LX

PIIX4

1

1

1

ULTRA
WIDE SCSI

GA-686SLX

adaptec

AIC-7880P

1
1

1
1

12

GA-686SLX

LPT PORT / COM A / COM B

LPT PORT

INTEL
440LX

COM B

COM A

GA-686SLX

JP1 : Keyboard Power On

1
2
3

Keyboard Power On
Default : Disable

1-2

Enable

2-3

Disable

GA-686SLX

PIIX4

PIIX4

adaptec

AIC-7880P

adaptec

AIC-7880P

INTEL
440LX

1

1

1

1
1

13

CN1: USB Port

Quick Installation Guide

Function

Pin No.

USB V0

1

USB D0-

2
3

USB D0+
GND

4

USB V0

5

USB D0-

6

USB D0+

7

GND

8

JP6: W a ke on LAN

1

PIIX4

GA-686SLX

PIIX4

adaptec

AIC-7880P

INTEL
440LX

INTEL
440LX

1

1

1

1
1

Pin No. Function

1
2
3

+5V SB
GND
Signal

GA-686SLX

1

adaptec

AIC-7880P

14

1

1

1

1
1

GA-686SLX

JP7: ACPI LED Selection

OPEN :
3 STEPS
ACPI LED

PIIX4

INTEL
440LX

CLOSE :
4 STEPS
ACPI LED

GA-686SLX

1

J13: ATX Power Control Selection

OPEN :
Soft Off

PIIX4

CLOSE :
Full on / Soft Off

GA-686SLX

1

1

adaptec

AIC-7880P

adaptec

AIC-7880P

INTEL
440LX

1

1

1

1
1

1

1

1

1
1

15

JP5: For PCI Audio / Sound Card use only

g

g

g

y

1

5

2

6

Function

Pin No.

Si
GND

NC
Si

GND
Si

nal

nal

nal

PIIX4

GA-686SLX

1

1

adaptec

1

AIC-7880P

1
2

3
4
5
6

Quick Installation Guide

INTEL
440LX

1

1

1

1
1

III. Top Performance Test Setting:

Users have to modify the value for each item in chipset features as follow
for top performance setting.

℃℃℃℃

℉℉℉℉

16 Bit I/O Recovery Time
Memory Hole At 15M-16M
Delayed Transaction
SDRAM RAS-to-CAS Delay
SDRAM RAS Precha r ge T im e
SDRAM CAS latenc

Time

CPU VCore Voltage

: Select Item
: Modify

16

GA-686SLX

TABLE OF CONTENTS

1. INTRODUCTION...................................................................................... 1-1

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 Pentium II Processor.....................................................1-4

1.6. What is AGP?.................................................................................................1-6

2. SPECIFICATION ..................................................................................... 2-1

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

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

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

3. HARDWARE INSTALLATION................................................................. 3-1

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

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

3.3. QUICK REFERENCE FOR JU MPERS & CONNECTORS .............................3-2

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

3.5. CPU SPEED SETUP.................. ........................................................ ............3-5

3.6. CMOS RTC & ISA CFG CMOS SRAM...........................................................3-6

3.7. SPEAKER CONNECTOR INSTALLATION ....................................................3-6

3.8. HARDWARE RESET SWITCH CONNECTOR INSTALLATION.....................3-6

3.9. POWER LE D CONNECTOR INSTA LLATION................................................3-6

1

Table of Contents

3.10. IDE & ATAPI DEVICE INSTALLATION.............................. ..........................3-6

3.11. SCSI DEVICE INSTALLATION ...... .. .. ............ .. .. .. .. .. .. ........................ .. .. ... ..3-6

3.12. PERIPHERAL DEVICE INSTALLATION......................................................3-9

3.13. KEYBOARD & PS/ 2 MOUSE INSTALLAT ION................... ..........................3-9

4. BIOS CONFIGURATION ......................................................................... 4-1

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

4.2. CONTROL KEYS................. ..........................................................................4-1

4.3. GETTING HELP.............................................................................................4-2

4.3.1. Main Menu..........................................................................................4-2

4.3.2. Status Page Setup Menu / Option Page Setup Menu..........................4-2

4.4. THE MAIN MENU...........................................................................................4-2

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

4.6. BIOS FEATURES SETUP......... .. .......................... .........................................4-8

4.7. CHIPSET FEATURES SETUP.......................................................................4-12

4.8. POWER MANAGEMENT SETUP ..................................................................4-17

4.9. PNP/PCI CONFIGURATION ..........................................................................4-21

4.10. INTEGRATED PERIPHERALS ........................ ............................................4-23

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

4.12. USER PASSWORD .....................................................................................4-29

4.13. IDE HDD AUTO DETECTION ......................................................................4-30

4.14. SAVE & EXIT SETUP............................................. ......................................4-31

4.15. EXIT WITHOUT SAVING.............................................................................4-32

2

GA-686SLX

1. INTRODUCTION

1.1. PREF ACE

Welcome to use the GA–686SLX motherboard. It is a Pentium II Processor
based PC / AT compatible system with AGP / PCI / SCSI / ISA Bus, and has
been designed to be the fastest PC / AT system. There are some new
features allow you to operate the system with just 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

 Intel Pentium



II Processor based PC / AT compatible mainboard.

 Slot 1 supports Pentium
 Intel 440LX chipset, Supports AGP / SDRAM / Ultra DMA/33 IDE / Wake



II processor running at 200-633 MHz.

on LAN / Keyboard and PS/2 Mouse Power On / ACPI features.



Supports CPU FAN Failure / Overheat Alarm & auto slow down CPU

speed.



Supports Intel LDCM Network Manageability.



Supports 4xDIMMs using 3.3V EDO or SDRAM DIMM module.

 Supports 8 MB - 1 GB EDO / 512MB SDRAM memory on board.
 Supports ECC or Non-ECC type DRAM module.
 1xAGP slot, 4xPCI Bus slots, 2xISA Bus slots.
 Supports 2 channels Ultra DMA/33 IDE ports for 4 IDE Devices.
 Supports both Ultra SCSI and Ultra Wide SCSI ports.
 Supports 2xCOM (16550), 1xLPT (EPP / ECP), 1x1.44MB Floppy port.
 Supports 2xUSB ports, 1xPS/2 Mouse.
 Licensed AWARD BIOS, 2M bit FLASH RAM.
 31 cm x 21 cm ATX SIZE form factor, 4 layers PCB.

1-1

Introduction

1.3. PERF ORMANCE LI ST

The following performance data list 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 benchm ark testing results.)

CPU

•

DRAM 64 MB SDRAM

•

• CACHE SIZE 512 KB included in CPU

• DISPLAY Matrox Millennium II 4MB PCI VGA

• STORAGE Onboard IDE port

O.S. Windows95 OSR2.0.

•

• DRIVER Display Driver at 1024 x 768 x 64K colors x 75Hz.

Pentium II processor

Triones Bus Master IDE Driver 3.60K

Processor

Intel Pentium II

266MHz 300MHz

Winbench97

CPU mark32

Business Disk

Hi-End Disk

Business Graphics

Hi-End Graphics

697 783
2210 2260
5890 6490
116 127

50.8 56.3

Winstone 97

Business

Hi-End

62 64.9

30.6 32.6

1-2

GA-686SLX

1.4. BLOCK DIAGRAM

AGP

SLOT

66MHz

AGP Bus

66MHz

CHIPSET

Host Bus

PAC

82432LX

66MHZ

DRAM Bus

3.3V EDO/SDRAM
DIMM Sockets

66MHz

PLL

52C64-25

Ultra DMA/33

IDE Ports

40MHz
OSC

SCSI
CHIPSET
AIC-7880P

Ultra Wide SCSI

Ultra SCSI Port

IDE Bus

PCI Bus

ISA Bus

PIIX4
82371AB
CHIPSET

33MHz

33MHz

33MHz

48MHz

14.318MHz

USB Bus

14.318MHz

1-3

PLL

52C64-06

I/O

CHIPSET

83977TF

USB Ports

COM Ports

LPT Port

Floppy Port

Keyboard

PS/2 Mouse

24MHz

66MHz

Introduction

1.5. INTRODUCE THE Pent i um

Figure 1:Retention Mechanism & attach Mount



II Processor & AGP

Figure 2:OEM Pentium II Processor

1-4

GA-686SLX

Figure 3:Heatsink / FAN & Heat sink support for OEM Pentium II Processor

Figure 4:Boxed Pentium II Processor & Heat sink support

1-5

Introduction

1.6 What is AGP????

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.
32-bits 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 speed up the transaction.

1-6

GA-686SLX

2. SPECIFICATION

2.1. HARDWARE

• CPU

•

PROTECTION

•

SPEED

• DRAM MEMORY

• CACHE MEMORY

Pentium II processor 200 – 633 MHz.

−

− 242 pins 66MHz slot1 on board.

−

Onboard Speaker Alarm when detect "CPU FAN

Failure" or “CPU Overheat”.

− Automatically slow down CPU speed when "CPU

Overheat".

− Intel LDCM

− H/W monitor power status (±5V, ±12V, CPU



supported.

voltage & CMOS battery voltage).

−

66 MHz system speed.

− 66 MHz AGP bus speed. (133MHz 2*mode)

− 33 MHz PCI-Bus speed.

− 8 MHz AT bus speed.

4 banks 168 pins DIMM module sockets on board.

−

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

module DRAM.

− 8 ~ 1 GB EDO/512 MB SDRAM.

− Supports 3.3V SDRAM / EDO type DRAM.

−

Supports ECC or Non-ECC type DRAM.
32 KB 1st cache memory included in CPU.

−

− 256KB/512 KB 2nd cache in CPU.

− Supports DIB speed mode for L2 Cache.

• I/O BUS SLOTS

• IDE PORTS

−

4 33MHz Master / Slave PCI-BUS.

− 2 8MHz 16 bits ISA BUS.

− 1 66MHz / 133MHz AGP bus.

−

2 Ultra DMA/33 Bus Master IDE channel s on

board.(Using IRQ14,15)

− Support Mode 3,4 IDE & ATAPI CD – ROM.

2-1

Supports 1 Ultra Wide SCSI port.

• SCSI PORTS

•

I/O PORTS

• GREEN

FUNCTION

• BIOS

• DIMENSION

−

− Supports 1 Ultra SCSI port.

Supports 2 16550 COM ports.

−

−

Supports 1 EPP/ECP LPT port.

−

Supports 1 1.44/2.88 MB Floppy port.

− Supports 2 USB ports.

− Supports PS/2 Mouse.

− Suspend mode support.

− Green switch & ACPI LED support.

− IDE & Display power down support.

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

−

2M bits FLASH RAM.

− Supports Plug & Play, DMI, ACPI Function.

−

ATX Form Factor, 4 layers PCB.

2.2. SOFTWARE

DRIVER

•

− Intel LDCM

− Health monitor Utility.

− Bus Master IDE Driver.

− Suspend to HD utility.



optional.

• BIOS − Licensed AWARD BIOS.

− AT CMOS Setup, BIOS / Chipset Setup, Green

Setup, Hard Disk Util ity included.

− Monitor Health status.

• O.S.

− Operation with MS-DOS

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



, Windows95,

Specification

2.3. ENVI R ONMEN T

Ambient Temp.

•

Relative Hum. − 0 to +85% (Operating).

•

− 0°C to +50°C (Operating).

• Altitude − 0 to 10,000 feet (Operating).

• Vibration − 0 to 1,000 Hz.

Electricity − 4.9 V to 5.2 V. (Max. 20A current at 5V.)

•

2-2

GA-686SLX

3. HARDWARE INSTALLATION

3.1. UNPACKING

The mainboard package should cont ain the following:

• The GA – 686SLX mainboard.

• The Retention Mechanism & Attach Mount

USER'S MANUAL for mainboard.

•

• Cable set for IDE, Floppy, SCSI & I/O devices.

• Diskette or CD for Mainboard Utility.

External SCSI port adapter.

•

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 damages 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.



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



3-1

R

JP1

3.2. MAINBOARD LAYOUT

BIOS

SLOT1

SLOT3

SLOT2

SLOT4

PIIX4

GA-686SLX

J13

1

4 3 2 1

SW

ON

1

JP6

JP5

1

JP7

BA T1

PCI 1PCI 2PCI 4 PCI 3

adaptec

AIC-7880P

Figure 3.1

Hardware In stallation

LPT

ULTRA WIDE SCSI

ULTRA SCSI

JP3

COMB

J3

COMA

J4

J5

SLOT 1

INTE L
440LX

AGP

BANK0

BANK1
BANK2

BANK3

CN4 CN2

CN5

SPK RST PWRHD IR GN SOFT PWR

FLOPPY

IDE 2

IDE 1

1

1

1

J6J8J9JP4J10J11

USB

CN1 J1

1

CN3J7

PS/2

KB
Mous e

J2
FAN
PW

ATX Power

1

3.3. QUICK REFERENCE FOR JUMPERS & CONNECTORS

 I/O Ports Connector

CN1 USB port.
CN2 Ultra SCSI port

CN3 Ultra Wide SCSI port
IDE1 For Primary IDE port.
IDE2 For Secondary IDE port.

J1 For PS/2 Keyboard port.
J1 For PS/2 Mouse port.
J7 For Floppy port
J3 For Serial port2 (COM B).
J4 For Serial port1 (COM A).

3-2

GA-686SLX

J5 For LPT port.

 GN : GN-SW

Pin No. Function

1 CTRL-Signal
2 GND

HD : Hard Disk active LED (HD- LED)



Pin No. Function

1 LED POWER (+)
2 LED POWER (-)

J2 : CPU cooling FAN Power Connector



Pin No. Function

1 GND.
2 +12V
3 SENSE

J13 : System After Ac Back



Pin No. Function

1 Signal
2 GND



JP1 : Keyboard Power On Selection

Pin No. Function

1-2 Enabled Keyboard power on.
2-3 Disabled Keyboard power on.



JP5 : For PCI Audio / Sound Card use onl y

Pin No. Function

1 Signal
2 GND
3 NC
4 Signal
5 GND
6 Signal

3-3



JP6 : Wake on LAN

Pin No. Function

1 +5V SB
2 GND
3 Signal

JP7 : ACPI LED selection



Pin No. Function

1 Signal
2 GND

RST : RESET Switch



Pin No. Function

1 RESET Input
2 GND

PWR : POWER ON LED ( PW-LED)



Pin No. Function

1 LED POWER (+)
2 NC
3 GND



Slot 1

For Pentium II processor installed

SPK : SPEAKER Connector



Pin No. Function

1 VCC
2 NC.
3 NC.
4 Output



Soft PWR : Soft Power Switch

Pin No. Function

1 CTRL-Signal

Hardware In stallation

3-4

GA-686SLX

2 GND

3.4. DRAM INSTALLATION

The mainboard can be installed with 4 / 8 / 16 / 32 / 64 / 128 / 256 MB 168
pins DIMM module DRAM, and the DRAM speed must be 50 or 60 ns for
EDO & 67~100 MHz for SDRAM. The DRAM memory system on mainboard
consists of bank 0, 1, 2 & bank 3.

Since 168 pins DIMM module is 64 bits width, using 1 PCS which can match
a 64 bits system. The total memory size is 8 MB ~ 1 GB EDO / 512MB
SDRAM. The DRAM installation position refer to Figure 3.1, and notice the
Pin 1 of DIMM module must match with the Pin 1 of DIMM socket. Insert the
DRAM DIMM module into the DIMM socket at Vertical angle. If there is a
wrong direction of Pin 1, the DRAM DIMM module couldn't be inserted into
socket completely.

3.5. CPU SPEED SETUP

The system's speed is fixed to 66.6MHz. The user can change the DIP
SWITCH (SW) selection to set up the CPU speed for 200 - 366MHz
processor. The CPU speed must match with the frequency RATIO. It will
cause system hanging up if the frequency RATIO is higher than CPU's.

DIP SWITCH (SW)

1 2 3 4

OFF ON OFF OFF 3 66 200 Pentium

ON ON OFF OFF 3.5 66 233

OFF OFF ON OFF 4 66 266 Pentium

ON OFF ON OFF 4.5 66 300 Pentium

OFF ON ON OFF 5 66 333 Pentium

ON ON ON OFF 5.5 66 366 Pentium



 The CPU is a sensitive electric component and it can be easily



FREQ.

RATIO

EXT.CLK.

MHz

INT.CLK.

MHz

CPU Type



II 200 MHz

Pentium II 233 MHz



II 266 MHz



II 300 MHz



II 333 MHz



II 366 MHz

damaged by static electricity, so users must keep it away from metal

3-5

Hardware In stallation

surface when the CPU is installed onto mainboard.

3.6. CMOS RTC & ISA CFG CMOS SRAM

There're RTC & CMOS SRAM on board; they have a power supply from
external battery to keep the DATA inviolate & effective. The RTC is a
REAL-TIME CLOCK device, which provides the DATE & TIME to system. The
CMOS SRAM is used for keeping the information of system configuration, so
the system can automatically boot OS every time. Since the lifetime of internal
battery is 5 years, the user can change a new Battery to replace old one after
it cannot work.

3.7. SPEAKER CONNECTOR INSTALLATION

There is a speaker in AT system for sound purpose. The 4 - Pins connector
SPK is used to connect speaker.

3.8. HARDWARE RESET SWITCH CONNECTOR INSTALLATION

The RESET switch on panel provides users with HARDWARE RESET
function. 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.

3.9. POWER LED CONNECTOR INSTALLATION

System has power LED lamp on the panel of case. The power LED will light
on off or flash to indicate which step on the system. The connector should be
connected to PWR of mainboard in correct direction.

3.10. IDE & ATAPI DEVICE INSTALLATION

There are two-Enhanced PCI IDE ports (IDE1, IDE2) on board, which
following ATAPI standard SPEC. Any one IDE port can connected to two
ATAPI devices (IDE Hard Disk, CD-ROM & Tape Driver), so total four ATAPI
devices can exist in a system. The HD is the active LED port for ATAPI

3-6

GA-686SLX

devices.

3.11. SCSI D EVICE INSTALLATION

There are two SCSI ports on board, One is 8bit SCSI port for SCSI-2 or
ULTRA SCSI device, and total 7 8bit SCSI devices can exist in a system.

The other is 16bit SCSI port for wide or ULTRA Wide SCSI device, and total
15 SCSI devices (include 8bit SCSI device) can exist in a system.

The low byte terminator (used for 8bit SCSI port) and high byte terminator
(used for Wide SCSI port) turning "ON" or "OFF" are controlled by BIOS
SETUP (in the INTEGRATED PERIPHERALS SETUP PAGE).

Terminator ON/ O FF rules

CASE 1: BIOS SETUP (SCSI Terminator Enable: Both)

1 System has 16 bit SCSI

16 bit 16 bit

SCSI DEVICE SCSI DEVICE

SCSI ID SCSI ID

Mainboard

Terminator ON Terminator OFF

2 System has only 8 bit SCSI device

Mainboard

Terminator ON Terminator OFF

No.15 No.0

8 bit 8 bit

SCSI DEVICE SCSI DEVICE

SCSI ID SCSI ID

No.6 No.0

Terminator ON

Terminator ON

3-7

3 System has EXT. SCSI port but has not INT. SCSI device

y

y

EXT. SCSI
Terminator

EXT. 50pin or 68pin SCSI port

Hardware In stallation

EXT.
SCSI
DEVICE

Terminator ON Terminator ON

EXT. SCSI port

Mainboard

CASE 2: BIOS SETUP (SCSI Terminator Enable: High Byte)

1 System has 16 bit & 8 bit SCSI device

16 bit

SCSI DEVICE

2 System has 8 bit EXT. SCSI port & 8 bit INT. SCSI device

SCSI-2
Terminator

EXT.
SCSI-2
DEVICE

Terminator ON Terminator OFF Terminator ON

3 System has 8 bit EXT. SCSI port & 16 bit INT. SCSI device

SCSI-2
Terminator

16 bit

SCSI DEVICE

Terminator OFFTerminator ON

EXT. 50pin SCSI port

EXT. 50pin SCSI port

Mainboard

High byte Terminator ON
Low byte Terminator OFF

Mainboard

High byte Terminator ON
Low b

te Terminator OFF

8 bit

SCSI DEVICE

Terminator OFF Terminator ON

8 bit

SCSI DEVICE SCSI DEVICE

SCSI ID SCSI ID

No.6 No.0

16 bit

SCSI DEVICE SCSI DEVICE

SCSI ID SCSI ID

8 bit

SCSI DEVICE

8 bit

16 bit

EXT.
SCSI-2
DEVICE

Terminator ON Terminator OFF Terminator ON

Mainboard

High byte Terminator ON

te Terminator OFF

Low b

3-8

No.15 No.0

GA-686SLX

y

y

4 System has 16 bit EXT. SCSI port & 8 bit INT. SCSI device

WIDE SCSI
Terminator

EXT. 50pin SCSI port

8 bit

SCSI DEVICE SCSI DEVICE

SCSI ID SCSI ID

8 bit

EXT.
WIDE SCSI
DEVICE

Terminator ON Terminator OFF Terminator ON

Mainboard

High byte Terminator ON

te Terminator OFF

Low b

No.6 No.0

CASE 3: BIOS SETUP (SCSI Terminator Enable: None)

1 System has 16 bit EXT. SCSI port & INT. 16 bit SCSI device

WIDE SCSI
Terminator

EXT.
WIDE SCSI
DEVICE

Terminator ON Terminator OFF Terminator ON

EXT. 68pin SCSI port

Mainboard

High byte Terminator OFF

te Terminator OFF

Low b

16 bit

SCSI DEVICE SCSI DEVICE

SCSI ID SCSI ID

No.15 No.0

16 bit

3.12. PERIPHERAL DEVICE INSTALLATION

After the I/O device installation and jumpers setup, the mainboard can be
mounted into the case and fixed by screw. To complete the mainboard
installation, the peripheral device could be installed now. The basic system
needs a display interface card. If the PCI - Bus device is to be installed in the
system, any one of four PCI - Bus slots can be used.

3.13. KEYBOARD & PS/2 MOUSE INSTALLATION

The main board supports PS/2 Mouse
whether the PS/2 Mouse is installed or not & assign IRQ12 for PS/2 Mouse
port if it is installed. After installing the peripheral device, the user should
check everything again, and prepare to power-on the system.

. The BIOS will auto detect

(J1)

3-9

BIOS Configuration

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. ENT ERING SETUP

Power ON the computer and press <Del> immediately will allow you 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>, <Al t>, and <Del> keys.

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 r eturn 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 col ors
F3 key Reserved
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

4-1

GA-686SLX

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 from nine
setup functions and two exit choices. Use arrow keys to select among the
items and press <Enter> to accept or enter the sub-menu.

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

INTEGRATED PERIPHERALS

LOAD SETUP DEFAULTS

: Quit

ESC

: Save & Exit Setup (Shift)F2

F10

Time, Date, Hard Disk Type, ...

Figure 4.1: Main Menu

USER PASSWORD

IDE HDD AUTO DETECTION

SAVE & EXIT SETUP

EXIT WITHOUT SAVING

↑↓→←

4-2

: Select Item
: Change Color

BIOS Configuration

Standard CMOS setup

•

This setup page includes all the items in standard compatibl e 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 configurations of PCI & PnP ISA
resources.

• Integrated peripherals

This setup page includes all onboard peripherals.

• Load setup defaults

Setup Defaults indicates the most appropriate value of the system
parameters which the system would be in safe configuration.

• User password

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

• IDE HDD auto detection

Automatically configure hard disk parameters.

•

Save & exit setup

Save CMOS value settings to CMOS and exit setup.

• Exit without savi ng

Abandon all CMOS value changes and exit setup.

4-3

GA-686SLX

(

yy

)

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 val ue you want in each item.

mm:dd:

Date
Time (hh:mm:ss)

HARD DISKS TYPE

: Mon, Nov 11 1997
: 16 : 45 : 02

↑↓→←

F1

: Select Item

: Change Color

Figure 4.2: Standard CMOS Setup Menu

•

Date

The date format is <day>, <month> <date> <year>.

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

display-only
month The month, Jan. through Dec.
date The date, from 1 to 31 (or the maximum allowed in the

month)

4-4

BIOS Configuration

year The year, from 1994 through 2079

• Time

The times 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 identifies the types of hard disk from drive C to F that has
been installed in the computer. There are two types: auto type, and user
definable type. User type is user-definable; Auto type which will
automatically detect HDD type.

Note that the specifications of your drive must match with the drive table.
The hard disk will not work properly if you enter improper information for
this category.

If you select User Type, related information will be asked to enter to the
following items. Enter the information directly from the keyboard and
press <Enter>. Such information should be provided in the
documentation form your hard disk vendor or the system manufacturer.

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 identifies 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. 5.25 inch PC-type standard dr ive; 360K byte capacity.

1.2M, 5.25 in. 5.25 inch AT-type high-density drive; 1.2M byte

capacity (3.5 in ch w hen 3 Mode is Enabled).

720K, 3.5 in. 3.5 inch double-sided drive; 720K byte capacity

1.44M, 3.5 in. 3.5 inch double-sided drive; 1.44M byte capacity.

4-5

GA-686SLX

2.88M, 3.5 in. 3.5 inch double-sided drive; 2.88M byte capacity.

• Floppy 3 Mode Support (for Japan Area)

Disabled Normal Floppy Drive.
Drive A Drive A is 3 mode Floppy Drive.
Drive B Drive B is 3 mode Floppy Drive.
Both Drive A & B are 3 mode Floppy Drives.

• 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 stop 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 al l 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

4-6

BIOS Configuration

disk error; it will stop for all other errors

•

Memory

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 M emory

Expanded Memory in memory defined by the
Lotus/Intel/Microsoft (LIM) standard as EMS.
Many standard DOS applications can not utilize memory above
640 K; 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 64 K 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 K to 1024 K
address space. This is memory that can be used for different
applications.

DOS uses this area to load device drivers to keep as much base
memory free for application programs. Most use for this area is
Shadow RAM.

4-7

GA-686SLX

4.6. BIOS FEATURES SETUP

Figure 4.3: BIOS Features Setup

•

Virus Warning

If it is set to enable, the category will flash on the screen when there is
any attempt to write to the boot sector or partition table of the hard disk
drive. The system will halt and the following error message will appear in
the mean time. You can run anti-virus program to locate the problem.

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 to appear when anyth ing attempts to

access the boot sector or hard disk partition table

• 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
Disabled Disable cache

4-8

BIOS Configuration

•

CPU L2 Cache ECC Checking

The default value is Disabled.

Enabled Enable CPU L2 Cache ECC Checking
Disabled Disable CPU L2 Cache ECC Checking

• Quick Power On Self Test

This category speeds up Power On Self Test (POST) after you power on
the computer. If it is set to Enable, BIOS will shorten or skip some check
items during POST.

The default value is Enabled.

Enabled Enable quick POST
Disabled Normal POST

• CPU Update Data

The default value is Enabled.

Enabled Enable CPU Update Data
Disabled Normal CPU Update Data

• Boot Sequence

This category determines which drive computer searches first for the disk
operating system (i.e., DOS). Default value is A, C, SCSI.

X1, X2, X3 System will first search for X1 disk drive then X2 disk

drive and then X3 disk dr ive.

• 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

4-9

GA-686SLX

Boot Up Floppy Seek

•

During POST, BIOS will determine the floppy disk drive installed is 40 or
80 tracks. 360 K type is 40 tracks 720 K, 1.2 M and 1.44 M are all 80
tracks. The default value is Enabled.

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

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

1.44 M drive typ e 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 K

• Boot Up NumLock Status

The default value is On.

On Keypad is number keys
Off Keypad is arrow keys

• Typematic Rate Setting

The default value is Disabled.

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

• Typematic Rate (C hars / 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.

4-10

BIOS Configuration

Security Option

•

This category allows you to limit access to the system and Setup, or just
to Setup. The default value is Setup.

System The system can not boot and can not access to Setup

page 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



 To disable security, select PASSWORD SETTING at Main Menu and



then you will be asked to enter password. Do 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 page freely.

•

PCI/VGA Palette Snoop

The default value is Disabled.

Enabled Fo r h a v in g V ideo Card on ISA Bus and VGA Card on PCI Bu s.
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 is able to copy to RAM, however, it is
optional from chipset design. Video Shadow will increase the video
speed. The default value is Enabled.

Enabled Video shadow is enabled
Disabled Video shadow is disabled

4-11

GA-686SLX

C8000 - CFFFF Shadow / D0000 - DFFFF Shadow

•

These categories determine whether optional ROM will be copi ed to RAM
by 16 K byte. The default value are Disabled.

Enabled Optional shadow is enabled
Disabled Optional shadow is disabled

4.7. CHIPSET FEATURES SETUP

℃℃℃℃

℉℉℉℉

Figure 4.4: Chipset Features Setup

• Auto Configuration

The default value is Enabled.

Enabled For 50 - 60ns EDO DRAM Timing.

Disabled For slow speed DRAM Timing.

4-12

F7 : Load Setup Defaults

DRAM Speed Selection

•

The default value is Normal .

Normal For normal DRAM operati on.

Fast For Fastest DRAM timing operation.

• Memory Buffer Strength

The default value is Middle.

Middle For Middle Memory Buffer strength.

Low For Low Memory Buffer strength.
High For High Memory Buffer str ength.

• DRAM Data Integrity Mode

The default value is Non-ECC.

Non-ECC For 64bit standard type DIMM module.
ECC For 72bit ECC type DIMM module.

• Video RAM Cacheable

BIOS Configuration

The default value is Disabled.

Disabled Disable this function.

Enabled Enable this function to get better VGA performance;

while some brands of VGA must be disabled this function

(e.g.ET4000W32P).

• 16 Bit I/O Recovery Time

The default value is 1.

1-4 Set 16 Bit I/O recovery time from 1 to 4.

NA None.

4-13

GA-686SLX

Memory Hole At 15M-16M

•

The default value is Disabl ed.

Disabled Normal Setting.
Enabled Set Address=15~16MB remap to ISA BUS.

• Delayed Transaction

The default value is Disabled.

Disabled Normal operation.

Enabled For slow speed ISA device in system.

• SDRAM RAS-to-CAS Delay

The default value is Fast

Slow For 67 / 83 MHz SDRAM DIMM module.

Fast For 100 MHz SDRAM DIMM module.

•

SDRAM RAS Precharge Time

The default value is Fast.

Slow For 67 / 83 MHz SDRAM DIMM module.

Fast For 100 MHz SDRAM DIMM module.

•

SDRAM CAS latency Time

The default value is 2.

3 For 67 / 83 MHz SDRAM DIMM module.
2 For 100 MHz SDRAM DIMM module.

4-14

BIOS Configuration

CPU Temperature Select

•

The default value is 70°C / 158°F.

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

/ 149°F will cause sy stem alarming & 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 alarming & slow down CPU
speed.

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

/ 167°F will cause sy stem alarming & slow down CPU
speed.

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

/ 176°F will cause sy stem alarming & slow down CPU
speed.

Disabled Disable monitors CPU Temp. (Overheat) function.

• Slow Down CPU Duty Cycle

The default value is Normal .

Normal Set Slow Down CPU Duty Cycle to Normal.

12.5% Set Slow Down C PU Duty Cycle to 12.5%.

25.0% Set Slow Down C PU Duty Cycle to 25.5%.

37.5% Set Slow Down C PU Duty Cycle to 37.5%.

50.0% Set Slow Down CPU Duty Cycle to 50.0%.

62.5% Set Slow Down C PU Duty Cycle to 62.5%.

75.0% Set Slow Down C PU Duty Cycle to 75.0%.

4-15

GA-686SLX

Alarm When CPU Overheat

•

The default value is Disabled.

Disabled Disable Alarm When Overheat.

Enabled Enable Alarm When Overheat .

• CPU Fan Failure Control

The default value is Disabled.

Disabled Disable monitor CPU FAN working status.

Enabled Enable monitor CPU FAN working stat us.

• Current CPU Temperature

The default value is Normal

High CPU overheats. (CPU Temperature is out of SPEC.)

Normal CPU Temp. is in SPEC.

• Current CPU Fan Status

The default value depends on system monitoring CPU FAN status.

Fail The CPU FAN fails to work.
OK The CPU FAN works normally.

XXXX Ignore

• Current ±12V / ±5V Voltages

The default value depends on system monitoring ±12V / ±5V voltage
status.

Fail The ±12V / ±5V voltage from Po wer supply is out of

SPEC.

OK The ±12V / ±5V voltage from Power supply is in SPEC.

4-16

Current Battery Life

•

The default value depends on system monitoring Battery status.

Fail The Battery (3V) voltage is out of SPEC.
OK The Battery (3V) voltage is in SPEC.

• CPU VCore Voltage

1.8V~3.5V The voltage is current setting for CPU.

4.8. POWER MANAGEMENT SETUP

BIOS Configuration

**

* Date ( of Month ) Alarm : 0
* Time ( hh:mm:ss) Alarm : 00:00:00

* These two items will show up when Resume by Alarm is enabled.

•

Power Management

The default value is Enabled.

Enabled Enable Green function.
Disabled Disable Green function.

Figure 4.5: Power Management Setup

4-17

*

GA-686SLX

PM Control by APM

•

The default value is Yes.

Yes Enable software APM function.
No Disable software APM function.

• Suspend Mode

The default value is Disable.

Disabled Disable Suspend Mode.
1 min - 1 Hour Setup the timer to enter Suspend Mode.

• HDD Power Down

The default value is Disable.

Disable Disable HDD Power Down mode function.
1-15 mins. Enable HDD Power Down mode between 1 to 15 mins.

 Suspend Mode Option

The default value is PowerOn Suspend
PowerOn Suspend Set the system to PowerOn Suspend mode

Suspend to Disk Set the system to Suspend to Disk mode

•

VGA Active Monitor

The default value is Disabled.

Disabled Disable monitor VGA activity.
Enabled Enable monitor VGA activity.

•

Soft-off by PWR-BTTN

The default value is Instant-Off.

Instant-off Soft switch ON/OFF for POWER ON/OFF
Delay 4 Sec. Soft switch ON 4sec. for POWER OFF.

4-18

CPUFAN Off In Suspend

•

The default value is Disabled.

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

• Resume by Alarm

The default value is Disabled.

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

If the default value is Enabled.

Date ( of Month) Alarm : 0~31
Time ( hh: mm: ss)
Alarm :

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

• IRQ [3-7,9-15] , NMI

The default value is Enabled.

Disabled Disable this function.
Enabled Enable monitor IRQ [3-7,9-15] for Green event.

BIOS Configuration

• Primary IDE 0/1

The default value is Disabled.

Disabled Disable this function.
Enabled Enable monitor Primary IDE 0/1 for Green event.

• Secondary IDE 0/1

The default value is Disabled.

Disabled Disable this function.

4-19

GA-686SLX

Enabled Enable monitor Secondary IDE 0/1 for Green event.

•

Floppy Disk

The default value is Enabled.

Disabled Disable this function.
Enabled Enable monitor Floppy Disk for Green event.

• Serial Port

The default value is Enabled.

Disabled Disable this function.
Enabled Enable monitor Serial Port for Green event.

• Parallel Port

The default value is Disabled.

Disabled Disable this function.
Enabled Enable monitor Parallel Port for Green event.

4-20

BIOS Configuration

4.9. PNP/PCI CONFIGURATION

ROM PCI / ISA BIOS

PNP/PCI CONFGURATION

AWARD SOFTWARE, INC.

PNP OS Installed : No Used MEM base addr : N/A
Resources Controlled by : Manual
Reset Configuration Data : Disabled

IRQ-3 assigned to
IRQ-4 assigned to
IRQ-5 assigned to
IRQ-7 assigned to
IRQ-9 assigned to
IRQ-10 assigned to
IRQ-11 assigned to
IRQ-12 assigned to
IRQ-14 assigned to
IRQ-15 assigned to
DMA-0 assigned to
DMA-1 assigned to
DMA-3 assigned to
DMA-5 assigned to
DMA-6 assigned to
DMA-7 assigned to

: Legacy ISA
: Legacy ISA
: PCI/ISA PnP
: Legacy ISA
: PCI/ISA PnP
: PCI/ISA PnP
: PCI/ISA PnP
: Legacy ISA
: Legacy ISA
: Legacy ISA
: PCI/ISA PnP
: PCI/ISA PnP
: PCI/ISA PnP
: PCI/ISA PnP
: PCI/ISA PnP
: PCI/ISA PnP

Figure 4.6: PCI Slot Configuration

* This item will show up when Used MEM base addr has been set.

*Used MEM Length : 8K

: Quit

F1

: Help

F5

: Old Values

F7 : Load Setup Defaults

↑↓→←

PU/PD/+/­(Shift)F2

: Select ItemESC
: Modify
: Color

• PNP OS Installed

The default value is No.

Yes Enable PNP OS Installed function.
No Disable PNP OS Installed function.

• Resources Controlled by

The default value is Manual.

Manual User can set the PnP resource (I/O Address, IRQ & DMA

channels) used by legacy ISA DEVICE.

Auto BIOS automatically use these PnP rescuers.

4-21

GA-686SLX

• Reset Configuration Data

The default value is Disabled.

Disabled Disable this function.
Enabled Enable clear PnP information in ESCD.

• 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 IS A" 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).

• Used MEM base addr

The default value is N/A.

N/A Disable the MEM. block using.

C800 ~ DC00 Select the MEM. block starting addr ess.

• Used MEM Length

The default value is 8K.

8K ~ 64K Select the MEM. block size.

4-22

BIOS Configuration

4.10. INTEGRATED PERIPHERALS

**

Figure 4.7: Load Setup Defaults

** This item will show up when “Keyboard Power On: Multikey” is selected.

• IDE HDD Block Mode

The default value is Enabled.

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

• IDE Primary Master PI O (for onboar d IDE 1st channel).

The default value is Auto.

Auto BIOS will automaticall y detect the IDE HDD Accessing

mode.
Mode0~4 Manually set the IDE Accessing mode.

4-23

GA-686SLX

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

•

The default value is Auto.

Auto BIOS will automaticall y 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 automaticall y 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 automaticall y detect the IDE HDD Accessing

mode.
Mode0~4 Manually set the IDE Accessing mode.

• IDE Primary Master UDMA.

The default value is Auto.

Auto BIOS will automaticall y detect the IDE HDD Accessing

mode.
Disabled Disable UDMA function.

• IDE Primary Sl ave UDMA.

The default value is Auto.

Auto BIOS will automaticall y detect the IDE HDD Accessing

mode.
Disabled Disable UDMA function.

4-24

BIOS Configuration

IDE Secondary Master UDMA.

•

The default value is Auto.

Auto BIOS will automaticall y detect the IDE HDD Accessing

mode.
Disabled Disable UDMA function.

• IDE Secondary Slave UDMA.

The default value is Auto.

Auto BIOS will automaticall y detect the IDE HDD Accessing

mode.
Disabled Disable UDMA function.

• On-Chip Primary PCI IDE

The default value is Enabled.

Enabled Enable onboard 1st channel IDE port.
Disabled Disable onboard 1st channel IDE port .

• On-Chip Secondary PCI ID E

The default value is Enabled.

Enabled Enable onboard 2nd channel IDE port.
Disabled Disable onboard 2nd channel IDE port.

• Onboard PCI SCSI chip

The default value is Enabled.

Enabled Enable onboard PCI SCSI chip.
Disabled Disable onboard PCI SCSI chip.

4-25

GA-686SLX

SCSI Terminator Enable

•

The default value is Both.

Both Support All SCSI Device.
None Disable SCSI Device Support.
Low Byte Low Byte-OFF.
High Byte High Byte-ON.

• USB Keyboard Support

The default value is Disabled.

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

• Onboard FDC 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.

4-26

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

• Parallel Port Mode

BIOS Configuration

The default value is SPP.

SPP Using Parallel port as Standard Printer Port.
EPP Using Parallel port as Enhanced Parallel Port.
ECP Using Parallel port as Extended Capabilities Port.
ECP/EPP Using Parallel port as ECP & EPP mode.

• PS/2 Mouse Power on

The default value is Disabled.

Disabled Disable PS/2 Mouse Power on .
Left Double Click twice on PS/2 mouse left button to Power on system.
Right Double Click twi ce on PS /2 mo use ri ght but ton to Pow er on

4-27

GA-686SLX

system.

• Keyboard Power on

The default value is Disabled.

Disabled Disable Keyboard Power on .
Multikey Enter multikey combination to Power on system.

4.11. LOAD SETUP DEFAULTS

ROM PCI / ISA BIOS

LOAD SETUP DEFAULTS

AWARD SOFTWARE, INC.

STANDARD CMOS SETUP

BIOS FEATURES SETUP

CHIPSET FEATURES SETUP

POWER MANAGEMENT SETUP

PNP/PCI CONFIGURATION

INTEGRATED PERIPHERALS

LOAD SETUP DEFAULTS

: Quit

ESC

: Save & Exit Setup (Shift)F2

F10

Load SETUP Defaults except Standard CMOS SETUP

Load SETUP Defaults (Y/N)? N

USER PASSWORD

IDE HDD AUTO DETECTION

SAVE & EXIT SETUP

EXIT WITHOUT SAVING

↑↓→←

: Select Item
: Change Color

Figure 4.7: Load Setup Defaults

•

Load SETUP Defaults

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

4-28

BIOS Configuration

4.12. 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.

ROM PCI / ISA BIOS

USER PASSWORD

AWARD SOFTWARE, INC.

STANDARD CMOS SETUP

BIOS FEATURES SETUP

CHIPSET FEATURES SETUP

POWER MANAGEMENT SETUP

PNP/PCI CONFIGURATION

INTEGRATED PERIPHERALS

LOAD SETUP DEFAULTS

: Quit

ESC

: Save & Exit Setup (Shift)F2

F10

Enter Password:

Change / Set / Disable Password

USER PASSWORD

IDE HDD AUTO DETECTION

SAVE & EXIT SETUP

EXIT WITHOUT SAVING

↑↓→←

: Select Item
: Change Color

Figure 4.8: Password Sett ing

Type the password, up to eight characters, and press <Enter>. The password
typed now will clear the 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 “PASSWORD DISABLED” will appear to confirm the
password being disabled. Once the password is disabled, the system will boot
and you can enter Setup freely.

If you select System at Security Option in 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 Menu. If you select Setup at Security Option in

4-29

GA-686SLX

BIOS Features Setup Menu, you will be prompted only when you try to enter
Setup.

4.13. IDE HDD AUTO DETECTION

ROM PCI / ISA BIOS

IDE HDDD AUTO DETECTION

AWARD SOFTWARE, INC.

CYLS. HEAD PRECOMP LANDZ SECTOR

SIZETYPEHARD DISKS MODE

Primary Master :

Select Primary Master Option (N=Skip): N

OPTION SIZE CYLS. HEAD PRECOMP LANDZ SECTOR MODE

1 (Y)

521 530 32 0 1059 63 LBA

2

521 1060 16 65535 1059 63 NORMAL

3 521 530 32 65535 1059 63

ESC

: Skip

LARGE

Figure 4.9: 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
number is over 1024, then the user can select LBA mode or LARGER mode
for DOS partition lar ger than 528 MB.

4-30

4.14. SAVE & EXIT SETUP

AWARD SOFTWARE, INC.

BIOS Configuration

ROM PCI / ISA BIOS

SAVE & EXIT SETUP

STANDARD CMOS SETUP

BIOS FEATURES SETUP

CHIPSET FEATURES SETUP

POWER MANAGEMENT SETUP

PNP/PCI CONFIGURATION

INTEGRATED PERIPHERALS

LOAD SETUP DEFAULTS

ESC

: Quit

F10

: Save & Exit Setup (Shift)F2

SAVE to CMOS and EXIT (Y/N)? N

Save Data to CMOS & Exit SETUP

USER PASSWORD

IDE HDD AUTO DETECTION

SAVE & EXIT SETUP

EXIT WITHOUT SAVING

↑↓→←

: Select Item
: Change Color

Figure 4.10: 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.

4-31

GA-686SLX

4.15. EXIT WITHOUT SAVING

ROM PCI / ISA BIOS

EXIT WITHOUT SAVING

AWARD SOFTWARE, INC.

STANDARD CMOS SETUP

BIOS FEATURES SETUP

CHIPSET FEATURES SETUP

POWER MANAGEMENT SETUP

PCI CONFIGURATION

INTEGRATED PERIPHERALS

LOAD SETUP DEFAULTS

ESC

: Quit

F10

: Save & Exit Setup (Shift)F2

Quit Without Saving (Y/N)? N

Abandon all Datas & Exit SETUP

USER PASSWORD

IDE HDD AUTO DETECTION

SAVE & EXIT SETUP

EXIT WITHOUT SAVING

↑↓→←

: Select Item
: Change Color

Figure 4.11: Exit Without Saving

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

Type "N" will return to Setup Utility.

4-32

DECLARATION OF CONFORMITY

Per FCC Part 2 Section 2. 1077(a)

FCC Compliance Statement:

This equipment has been tested and found to

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

Mother Board

Product Name:

Model Number:

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 interference,
and (2) this device must accept any inference received, including interference
that may cause undesired operation.

Representative Person's Name: ERIC LU

Signature:

Date: Aug. 14, 1997

GA686SLX

Eric Lu

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 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.

Declaration of Conformity

We, Manufacturer/I mporter

(full address)

G.B.T. Technology Träding GMbH

Ausschlager Weg 41, 1F, 20537 Hamburg, Germany

( description of the apparatus, system, installation to which it refers)

(reference to the specification under which conformity is declared)

EN 55011 Limits and me thods of me asurement EN 61000-3-2* Disturbances in supply systems caused

of radio disturbance characteristics of

industrial, scientific and medical (ISM electrical equipment “Harmonics”
high frequency equipment

EN55013 Limit s and methods of measurement EN61000-3-3* Disturbances in supply systems caused
of radio disturbance characteristics of
broadcast receivers and associated electrical equipment “Voltage fluctuations”
equipment

EN 55014 Limits and method s of measur eme nt EN 500 81-1 Generic emission standard Part 1:
of radio disturbance characteristics of Residual, commercial and light industry
household electrical appliances,
portable tools and similar electrical
apparatus Residual, commercial and light industry

EN 55015 Limits and me thods of me asurement EN 55081-2 Generic emission standard Part 2:
of radio disturbance characteristics of Industrial environment
fluorescent lamps and luminaries

EN 55020 Immunity from radio interference of EN 55082-2 Gener ic immuni t y s t an da r d P ar t 2:
broadcast receivers and associated Industrial environment
equipment

EN 55022 Limits and me thods of me asurement ENV 55104 Immunity requirements for household
of radio disturbance characteristics of appliances tools and similar apparatus
information technology equipment

DIN VDE 0855 Cabled distribution systems; Equipment EN 50091- 2 EMC requirements for uninterr uptible

part 10 for receiving and/or distribution from power systems (UPS)

part 12 sound and television signals

declare that the product

in accordance with 89/336 EEC-EMC Directive

Mother Board

GA-686SLX

is in conformity with

EN60555-2 by household appliances and similar

EN60555-3 by household appliances and similar

EN 50082-1 Generic immunity standard P ar t 1:

CE marking (EC conformity marking)

The manufacturer also declares the conformity of above mentioned product
with th e act u a l r eq uired saf et y st an d ards in acco r da n ce wi th L VD 73/ 2 3 E E C

EN 60065 Safety requirements for mains operated EN 60950 Safety for information technology equipment

electronic and related apparatus for including electrical business equipment
household and similar general use

EN 60335 Safety of household and similar EN 50091-1 General and Safety requirements for
electrical appliances uninterruptible power systems (UPS)

Signature

Date : Oct. 25, 1997 Name : Rex Lin

(Stamp)

Manufacturer/Importer

Rex Lin

: