Gigabyte GA-586UX User Manual

GA - 586UX

USER'S MANUAL

Dual PENTIUM PCI - ISA BUS MAINBOARD

REV. 1 First Edition

GA-586UX

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.

IBM PC/AT, PC/XT are trademarks of International Business Machine
Corporation.
PENTIUM is a trademark of Intel Corporation.
AWARD is a trademark of Award Software, Inc.
MS-DOS WINDOWS NT are registered trademarks of Microsoft Corporation.
UNIX is a trademark of Bell Laboratories.

NOVEMBER 21, 1996 Taipei, Taiwan

TABLE OF CONTENTS

2

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 PCI - BUS..........................................................1-4

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

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 JUMPERS & CONNECTORS................3-2

3.4. DRAM INSTALLATION...................................................................3-4

3.5. CPU INSTALLATION AND JUMPERS SETUP................................3-5

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

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

3.8. POWER LED & KEY LOCK CONNECTOR INSTALLATION ............3-6

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

3.10. GREEN FUNCTION INSTALLATION ............................................ 3-6

3.11. ATAPI DEVICE INSTALLATION....................................................3-7

3.12. PERIPHERAL DEVICE INSTALLATION........................................3-7

3.13. KEYBOARD & PS/2 MOUSE INSTALLATION............................... 3-7

3.14. KEYBOARD SETTING FUNCTION...............................................3-7

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

3

GA-586UX

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........................................................4-11

4.8. POWER MANAGEMENT SETUP....................................................4-12

4.9. PNP/PCI CONFIGURATION...........................................................4-14

4.10. INTEGRATED PERIPHERALS......................................................4-15

4.11. LOAD SETUP DEFAULTS............................................................4-18

4.12. USER PASSWORD......................................................................4-19

4.13. IDE HDD AUTO DETECTION....................................................... 4-20

4.14. SAVE & EXIT SETUP................................................................... 4-21

4.15. EXIT WITHOUT SAVING..............................................................4-22

5. AT TECHNICAL INFORMATION.......................................................5-1

5.1. I/O BUS CONNECTOR PIN OUT....................................................5-1

5.1.1. ISA SLOT PIN OUT .................................................................5-1

5.1.2. PCI - BUS SLOT PIN OUT.......................................................5-2

5.2. I/O & MEMORY MAP......................................................................5-3

5.3. TIMER & DMA CHANNELS MAP....................................................5-3

5.4. INTERRUPT MAP ..........................................................................5-4

5.5. RTC & CMOS RAM MAP................................................................5-5

APPENDIX A: POST MESSAGE..............................................................A-1

APPENDIX B: POST CODES ................................................................... B-1

APPENDIX C: BIOS DEFAULT DRIVE TABLE.........................................C-1

APPENDIX D: PROBLEM SHEET............................................................D-1

4

Introduction

1. INTRODUCTION

1.1. PREFACE

Welcome to use the GA - 586UX motherboard. The motherboard is a 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 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

q Intel Pentium
q 4 Master / Slave PCI Bus slots, 4 ISA Bus slots.
q Supports Pentium processor,PODP running at 75-200 MHz,



Processor based PC / AT compatible mainboard.

Cyrix 6x86, and AMD 5k86 Processor.

q Supports 321 Pins (Socket 7) ZIF white socket on board, and Dual POWER

(2.8V/3.3V) Processor.

q Supports 512 KB Pipeline Burst Sync. 2nd Cache.
q CPU L1 / L2 Write-Back cache operation.
q Supports 8 - 512 MB DRAM memory on board.
q Supports 2 channels Enhance PCI IDE ports for 4 IDE Device.
q Supports 2xCOM (16550), 1xLPT (EPP / ECP), 1x1.44MB Floppy port.
q Supports Green function, Plug & Play function.
q Licensed AWARD BIOS, FLASH EEPROM for BIOS update.
q BENCHMARQ3287 / DALLAS 12887 / ODIN 12C887 RTC on board.
q ATX form factor, 4 layers PCB.

1-1

GA-586UX

1.3. PERFORMANCE LIST

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
benchmark testing results.)

• CPU

Pentium processor 200 MHz

• DRAM 32 MB EDO

• CACHE SIZE 512 KB 2nd cache

• DISPLAY Matrox Millennium 2MB

• STORAGE Onboard IDE port + Quantum FB 1280AT IDE Drive

• O.S. Windows95A with Display Driver at 1024 x 768 x 256

colors x 70Hz & BusMaster IDE Driver.

Program Pentium-200 Pentium-MMX-200
Winstone32 index 124.7 142.9
Winstone96 index 91.1 100.5
WinBench96

CPUmark32 395 432
Disk WinMark96 1250 1310
Graphics WinMark96 38.9 52.9

SYS MARK 32 Ver.10

164 186

1-2

1.4. BLOCK DIAGRAM

Introduction

Host Bus

PCI Bus

Second Level

Cache

Cache

(SRAM)

Tag

Hard Disk

Fast IDE

Cntl

Tag Cntl
TIO[7:0]
TIO[10:8]

PIIX3CD ROM

TXC

R

3.3V

Addr
Data
ECC
Cntl

Control

Address/Data

Pentium Processor

Control

Address

Data

Main
Memory
(DRAM)

PCI

Device(s)

ISA

Device(s)

ISA Bus

1-3

GA-586UX

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

q 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.

1-4

2. SPECIFICATION

•

2.1. HARDWARE

Specification

• CPU

• COPROCESSOR

• SPEED

• DRAM MEMORY

• CACHE MEMORY

• I/O BUS SLOTS

• IDE PORTS

• I/O PORTS

GREEN FUNCTION

− Pentium

− Pentium

− AMD5

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

− 3.3V / 2.8V Dual Power Ready for P55C,Cyrix &



processor 75 - 200 MHz, P55C.



OverDrive processor, (PODP).

86, Cyrix6x86 processor.

K

AMD processor.

− Included in Pentium.

− 50 / 55 / 60 / 66 MHz system speed.

− 25 / 27.5 / 30 / 33 PCI-Bus speed.

− 7.5 / 8 MHz AT bus speed.

− Hardware and Software speed switchable function.

− 2 banks 72 pins SIMM module socket on board.

− Use 4 / 8 / 16 / 32 / 64 /128 MB 60~70 ns SIMM

module DRAM.

− 8 ~ 512 MB DRAM size.

− Support Fast Page / EDO DRAM access mode.

− 16 KB cache memory included in Pentium.

− 512 KB Pipeline Burst 2nd cache.

− Support Write Back cache function for both CPU &

on board cache.

− 4 Master / Slave PCI-BUS.

− 4 16 bits ISA BUS.

− 2 Enhanced IDE channels on board.(Using

IRQ14,15)

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

− Supports 2 16550 COM ports. (Using IRQ4, 3)

− Supports 1 EPP/ECP LPT port. (Using IRQ7 or 5

and DMA3 or 1)

− Supports 1 1.44MB Floppy port. (Using DMA2 &

IRQ6)

− Supports PS/2 Mouse. (Using IRQ12 )

− Supports PS/2 Keyboard.

− Standby & Suspend mode support.

− Green switch & LED support.

− IDE & Display power down support.

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

2-1

GA-586UX

• BIOS

• DIMENSION

− 128KB FLASH EEPROM.

− Supports Plug & Play Function.

− ATX Form Factor, 4 layers PCB.

2.2. SOFTWARE

• BIOS − Licensed AWARD BIOS.

− AT CMOS Setup, BIOS / Chipset Setup, Green

Setup, Hard Disk Utility included.

• O.S.

− Operation with MS-DOS

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



, Windows95,

2.3. ENVIRONMENT

• Ambient Temp.

− 0°C to +50°C (Operating).

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

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

• Vibration − 0 to 1,000 Hz.

• Electricity − 4.9 V to 5.2 V.

− 5 A to 7 A current.

2-2

Hardware Installation

3. HARDWARE INSTALLATION

3.1. UNPACKING

The mainboard package should contain the following:

• The GA - 586UX mainboard.

• USER'S MANUAL for mainboard Installation.

• Cable set for IDE & Floppy device.

• Diskette for BUS MASTER IDE Driver & SCSI controller.

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.

M

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

You are now ready to install your mainboard. The mounting hole pattern on the
mainboard matches the IBM-AT system board. 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.

3.2. MAINBOARD LAYOUT

3-1

GA-586UX

COMB LPT Keyboard Mouse COMA

CN3 CN4 CN1 CN2 CN5

SLOT1SLOT3SLOT5SLOT7

PCI4 PCI3 PCI2

SLOT2SLOT4SLOT6SLOT8

J2 J4 J5J3 J7J6 J8

1 1 1 1

1

+ + +

+J9+

DIP SWITCH
ON

OFF

1

S1

PCI1

GA-586UX

IDE1

4
3
2

CN8

IDE2

CN9

FLOPPY

CN10

SIMM 1

SIMM 4

POWER

Socket 7

P.B.

SRAM

P.B.

SRAM

×Figure 3.1Ø

3.3. QUICK REFERENCE FOR JUMPERS & CONNECTORS

t J1: CPU cooling FAN Power Connector

1 +12V
2 GND

1
1
1
1

CPU

ATXPOW

+12V
GND

J1

t J2: SPEAKER Connector

Pin No. Function

1 VCC
2 NC.
3 NC.
4 Output

t J3: RESET Switch (RST)

Pin No. Function

1 RESET Input
2 GND

t J4: POWER ON LED (PW-LED)

Pin No. Function

1 LED POWER (+)
2 NC

3-2

3 GND (-)

t J5: Hard Disk active LED

Pin No. Function

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

t J6: INFRARED Connector (IR) -- Function Option

Pin No. Function

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

t J7: GN-SW

Pin No. Function

Close Force system to enter Green Mode (Suspend mode).
Open Normal Operation.

t J8: ATX Power On/Off

Pin No. Function

Close &

Open

This is the soft switch (Power On/Off) of ATX Power Supply,
Close & Open one time to Power On & again to Power Off.

Hardware Installation

t J9: GN-LED

Pin No. Function

1 LED anode (+).
2 LED cathode (-).

t S1: CPU EXT. FREQ

1 2 Function

ON ON For 50 MHz system speed ( CPU 75, 100(x2), PODP 125 MHz ).

OFF OFF For 55 MHz system speed ( CPU 110 MHz ).

ON OFF For 60 MHz system speed ( CPU 90, 120, 150, 180 MHz ).

OFF ON For 66 MHz system speed ( CPU 100, 133, 166, 200 MHz ).

t S1: CPU CLK. RATIO

3 4
OFF OFF x 1.5
OFF ON x 2

ON ON x 2.5
ON OFF x 3

3-3

GA-586UX

t CN1-5,8-10: I/O Ports Connector

CN1 For Keyboard I/O port.
CN2 For PS/2 Mouse port.
CN3 For Serial port2 (COM B).
CN4 For LPT port.
CN5 For Serial port1(COM A).
CN8 For Primary IDE port.
CN9 For Secondary IDE port.

CN10 For Floppy port.

t POWER: Power Connector

Pin No. Function

1 Power Good signal

2,10,11,12 VCC (+5V)

3 +12V
4 -12V

5,6,7,8 GND

9 -5V

t ATX POW: ATX POWER connector

Pin No. Function

3,5,7,13,15-17 GND

4,6,19,20 VCC (+5V)

10 +12V
12 -12V
18 -5V

8 Power Good
9 5V SB (Stand by +5V)

14 PS-ON (Soft ON/OFF)

3.4. DRAM INSTALLATION

The mainboard can be installed with 4 / 8 / 16 / 32 / 64 / 128 MB 72 pins SIMM
module DRAM, and the DRAM speed must be 60 or 70 ns. The DRAM
memory system on mainboard consists of bank 0 & bank 1. Each bank consist
of 2 PCs 72 pins SIMM module DRAM. Because the 72 pins SIMM module is
32 bits width, using 2 PCs which can match a 64 bits system.
The total memory size is 8 - 512 MB, and various configuration of DRAM types
in the following TABLE are for reference:

Bank0 Bank1 Single: Single bank SIMM Module
Single None Ex. 4MB, 16MB, 64MB
Single Single
Single Double Double: Double banks SIMM Module

3-4

Hardware Installation

Double None Ex. 8MB, 32MB, 128MB
Double Single
Double Double

The DRAM installation position refer to Figure 3.1, and notice 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 con-firmly.

3.5. CPU INSTALLATION AND JUMPERS SETUP

The system's speed depends on the frequency of CLOCK GENERATOR. The
user can change the DIP SWITCH (S1) selection to set up the system speed to
50 MHz, 55 MHz, 60 MHz or 66 MHz for 75 - 200 MHz processor.

The mainboard can use Intel Pentium Processor, P55C or PODP
( Pentium OverDrive Processor - P54CT, P54CTB), Cyrix 6x86 AND

AMD 5k86 processor. The CPU speed must match with the frequency of
CLOCK GEN. It will cause system hanging up if the CLOCK GEN.'S frequency
is higher than CPU's.
CPU Installation Table:

ON ON OFF OFF 1.5 50 75 PENTIUM 75 MHz, AMD5K86-P75
ON OFF OFF OFF 1.5 60 90 PENTIUM 90 MHz, AMD5K86-P90/P120

OFF ON OFF OFF 1.5 66 100 PENTIUM 100 MHz, AMD5K86-P100/P133

ON ON OFF ON 2 50 100 Cyrix 6X86-P120

OFF OFF OFF ON 2 55 110 Cyrix 6X86-P133

ON OFF OFF ON 2 60 120

OFF ON OFF ON 2 66 133

ON ON ON ON 2.5 50 125 Intel PODP 125MHz
ON OFF ON ON 2.5 60 150 PENTIUM 150 MHz

OFF ON ON ON 2.5 66 166 PENTIUM 166 MHz

ON OFF ON OFF 3 60 180 PENTIUM 180 MHz

OFF ON ON OFF 3 66 200 PENTIUM 200 MHz

M

DIP SWITCH (S1) EXT.

1 2 3 4 RATIO MHz MHz

INT.CLK. CPU SPEED

CLK.

PENTIUM 120 MHz, AMD5K86-P150, Cyrix 6X86-P150
PENTIUM 133 MHz, AMD5K86-P166, Cyrix 6X86-P166

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.

3.6. CMOS RTC & ISA CFG CMOS SRAM

There're RTC & CMOS SRAM on board, they have a power supply from

3-5

GA-586UX

internal battery to keep the DATA inviolate & effective. The RTC is a REAL­TIME CLOCK device which provides the DATE & TIME to system. The CMOS
SRAM is used for keeping the information of ISA device system configuration,
so the system can automatically boot OS. every time.

Due to the life-time of RTC internal battery is 5 years, the user can change a
new RTC to replace old one after it can not work. The new one's brand and
type must be same with old one.

3.7. SPEAKER CONNECTOR INSTALLATION

There is always a speaker in AT system for sound purpose. The 4 - Pins
connector J3 is used to connect speaker. The speaker can work well in both
direction of connector when it is installed to the connector J3 on mainboard.

3.8. POWER LED & KEY LOCK CONNECTOR INSTALLATION

There are a system power LED lamp on the panel of case. The power LED will
light on when system is powered-on, which is connected to a 3 PIN connector.
The connector should be connected to J5 of mainboard in correct direction.

3.9. 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 J4 on mainboard.

3.10. GREEN FUNCTION INSTALLATION

For the purpose of power saving, there are two jumpers, J8 and J9, to make
sure the power saving function doing well. The J9 is a indicator (green LED)
for green function. If the green LED is ON, the system is operating in green
mode. The J8 is a switch to force the system get into green mode
immediately.

3.11. ATAPI DEVICE INSTALLATION

There are two Enhance PCI IDE ports (CN10,11) on board, which following
ATAPI standard SPEC. Any one IDE port can connect to two ATAPI devices
(IDE Hard Disk, CD-ROM & Tape Driver), so total four ATAPI devices can exist
in a system.

The booting Hard Disk should be the Master device of 1st IDE channel.

3.12. PERIPHERAL DEVICE INSTALLATION

3-6

Hardware 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 if Slave PCI - Bus device being installed; any one of tree
PCI-Bus slots (PCI1-PCI3) can be used if Bus Master PCI-Bus device being
installed (PCI4 slot can only support Slave PCI-Bus device due to onboard
SCSI controller using PCI4 slot's Master resource).

3.13. KEYBOARD & PS/2 MOUSE INSTALLATION

The main board supports PS/2 connector type keyboard & Mouse.
The BIOS will auto detect whether the PS/2 Mouse is installed or nor & assign

IRQ12 for Mouse port if which was installed.
After installing the peripheral device, the user should check everything again,

and prepare to power-on the system.

3.14. KEYBOARD SETTING FUNCTION

After booting the O.S., there are some special functions used by keyboard as
follows:

"CTRL_ALT_DEL" − Pressing these keys simultaneously will cause

system to Warm Start (Software Reset).

3-7