Gigabyte GA-6BXM User Manual

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

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

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..............................3-1

3.4. DRAM INSTALLATION.....................................................................................3-7

3.5. CPU SPEED SETUP.........................................................................................3-8

3.6. CMOS RTC & ISA CFG CMOS SRAM.............................................................3-9

3.7. SPEAKER CONNECTOR INSTALLATION......................................................3-9

3.8. HARDWARE RESET SWITCH CONNECTOR INSTALLATION....................3-9

3.9. POWER LED CONNECTOR INSTALLATION.................................................3-9

3.10. IDE & ATAPI DEVICE INSTALLATION..........................................................3-9

3.11. PERIPHERAL DEVICE INSTALLATION........................................................3-9

3.12. KEYBOARD & PS/2 MOUSE INSTALLATION...............................................3-9

1

6BXM

4. BIOS CONFIGURATION

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

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

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

4.3.1Main 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..................................................................4-5

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 ............................................................................4-20

4.10. LOAD BIOS DEFAULTS.................................................................................4-22

4.11. LOAD PERFORMANCE DEFAULTS .............................................................4-23

4.12. INTEGRATED PERIPHERALS.......................................................................4-24

4.13. SUPERVISOR/USER PASSWORD...............................................................4-29

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

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

4.16. EXIT WITHOUT SAVING ...............................................................................4-32

APPENDIX A: On-Board Display Driver Installation

A.1. ATi RAGE PRO DISPLAY DRIVER INSTALLATION......................................A-1

A.2. YAMAHA SOUND DRIVER INSTALLATION...................................................A-6

2

Introduction

1. INTRODUCTION

1.1. PREFACE

Welcome to use the 6BXM motherboard. It is a Pentium II / Celeron
Processor based PC / AT compatible system with AGP/ PCI / 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

q Intel Pentium

mainboard.

q Slot 1 supports Pentium
q Intel 440BX chipset, Supports SDRAM / Ultra DMA 33 IDE.
q Built-in ATi 3D RAGE PRO 3D graphics acceleration chip.
q Built-in PCI YAMAHA YMF724 / 740 audio chip.
q Support Modem Ring-On. (Include internal Modem and external modem

on COM A and COM B)

q Supports Wake-up on LAN (JP10).
q Supports 3xDIMMs using 3.3V EDO or SDRAM DIMM module.
q Supports 16 MB - 768 MB SDRAM memory on board.
q 4xPCI Bus slots, 1xISA Bus slots, 1xAGP slot.
q Supports 2 channels Ultra DMA 33 IDE ports for 4 IDE Devices.
q Supports 2xCOM (16550), 1xLPT (EPP / ECP), 1x Floppy port.
q Supports 2xUSB ports, 1xPS/2 Mouse, 1xPS/2 Keyboard.
q Licensed AWARD BIOS, 2Mbits FLASH RAM.
q 30.5 cm x 19 cm ATX form factor, 4 layers PCB.



II / Celeron Processor based PC / AT compatible



II / Celeron processor running at 233-633 MHz.

1-1

6BXM

(8MB SDRAM)

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

• DRAM (128 x 1) MB SDRAM (LGS GM72V66841CT7J)

• CACHE SIZE 512 KB included in CPU

• DISPLAY Onboard ATi AGP 3D graphics acceleration chip

• STORAGE Onboard IDE (Seagate ST34520A)

• O.S. Windows NT™ 4.0

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

Processor

Pentium II processor

TRIONES Bus Master IDE Driver 3.70

Intel Pentium II

400MHz(100x4) 350MHz(100x3.5)

Winbench98

CPU mark32 1080 908
FPU Winmark 2070 1810
Business Disk 2210 1430

Hi-End Disk 5460 5220

Business Graphics 202 181

Hi-End Graphics 235 204

Winstone98

Business 36.6 34

Hi-End 40.7 38.7

1-2

1.4. BLOCK DIAGRAM

DIMM Sockets

Port

AC-2

SLOT1

Introduction

66MHz

3.3V EDO/SDRAM

VGA

Ultra DMA/33

IDE Ports

MIC
L-IN
L-OUT

Game

SDRAM

100MHz

ATi

RAGE PRO

AGP Bus

66MHz

66MHz

IDE Bus

YAMAHA

PAC

82443BX

CHIPSET

PCI Bus

82371EB

CHIPSET

ISA Bus

Host Bus

PIIX4

DRAM Bus

33MHz

33MHz

Generator

33MHz

48MHz

14.318MHz

USB Bus

I/O

CHIPSET

IT8671F

Clock

14.318MHz
24MHz

14.318MHz

USB Ports

COM Ports

LPT Port

Floppy Port

PS/2 Keyboard

24.576MHz

PS/2 Mouse

1-3

6BXM

1.5. INTRODUCE THE Pentium II Processor & AGP

Figure 1:Retention Mechanism & attach Mount

1-4

Introduction

Figure 2:OEM Pentium II Processor

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

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

1-5

6BXM

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

2. SPECIFICATION

2.1. HARDWARE

Specification

• CPU

• SPEED

• DRAM MEMORY

• CACHE MEMORY

• I/O BUS SLOTS

• IDE PORTS

• I/O PORTS

− Pentium

− 242 pins 66 MHz slot1 on board.

− 66/100 MHz system speed.

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

− 33 MHz PCI-Bus speed.

− 8 MHz AT bus speed.

− 3 banks 168 pins DIMM module sockets on board.

− Use 16 / 32 / 64 / 128 / 256 MB DIMM module DRAM.

− 16 ~ 768MB SDRAM.

− Supports 3.3V SDRAM / EDO type DRAM.

− 32 KB 1st cache memory included in CPU.

− 256KB/512 KB 2nd cache in CPU.

− Supports DIB speed mode for L2 Cache.

− 4 33MHz Master / Slave PCI-BUS.

− 1 8MHz 16 bits ISA BUS.

− 1 66MHz / 133MHz AGP bus.

− 2 Ultra DMA 33 Bus Master IDE channels on



II / Celeron processor 233 – 633 MHz.

board.(Using IRQ14,15)

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

− Supports 2 16550 COM ports.

− Supports 1 LPT port.

− Supports 1 Floppy port.

− Supports 2 USB ports.

− Supports 1 PS/2 Mouse.

− Supports 1 PS/2 Keyboard.

2-1

6BXM

• Audio Ports

• GREEN FUNCTION

• BIOS

• DIMENSION

− 1x Line in

− 1x Line out

− 1x Micro in

− 1x Game Port

− 2x CD Line in

− 1x TEL

− Suspend mode support.

− Green switch & Green LED support.

− IDE & Display power down support.

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

− 2M bits FLASH RAM.

− Supports Plug & Play, DMI Function.

− ATX Form Factor, 4 layers PCB.

2.2. SOFTWARE

• DRIVER − Bus Master IDE Driver.

− INTEL Patch_95 Driver.

− YAMAHA Sound Driver.

− ATi 3D RAGE PRO Driver.

• BIOS − Licensed AWARD BIOS.

− AT CMOS Setup, BIOS / Chipset Setup, Green

Setup, Hard Disk Utility included.

• O.S.

− Operation with MS-DOS

Windows98, 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. (Max. 20A current at 5V.)

2-2

Hardware Installation

3. HARDWARE INSTALLATION

3.1. UNPACKING

The mainboard package should contain the following:

• The 6BXM mainboard.

• The Retention Mechanism & Attach Mount

• USER'S MANUAL for mainboard.

• Cable set for IDE, Floppy devices.

• CD or diskette for Mainboard ¡BSound and VGA 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
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.

3.2. MAINBOARD LAYOUT

3-1

6BXM

6BXM

JP7

JP4

COM B

USB

PS/2

JP3

JP6

JP8

JP12IRJ9

JP5

SW1

BANK 1

BANK 2

VGA

COM A

LPT

JP18

ATX Power

BIOS

JP11

PIIX4

J12

SW2

JP13

BAT

BZ1

CN 6

YAMAHA
YMF724/

740

ATi

RAGE PRO
AGP

JP9

GAME&AUDIO

JP17

BANK 0

SLOT1

IDE 2
IDE 1

INTEL
443BX

ATX POWER

FLOPPY

×Figure 3.1

Ø

3.3. QUICK REFERENCE FOR JUMPERS & CONNECTORS

t I/O Ports Connector

USB USB port.
IDE1 For Primary IDE port.
IDE2 For Secondary IDE port.
FLOPPY For Floppy port
PS/2 For PS/2 Keyboard / Mouse port.
COMB For Serial port2 (COM B).
COMA For Serial port1 (COM A).
LPT For LPT port.
VGA For VGA port.
GAME For GAME port.

For ATX Power Connector.

AUDIO For MIC,LINE-IN,LINE-OUT port.

t Slot 1

For Pentium II / Celeron processor installed

t JP4 : System Acceleration

Pin No Function

3-2

Hardware Installation

1-2 short For 100MHz Turbo and other frequencies
2-3 short For 100MHz Normal

t J3:CPU FAN (CPU cooling FAN Power Connector)

Pin No. Function

1 GND.
2 +12V
3 SENSE

t JP10 : Wake on Lan

Pin No. Function

1 +5V SB
2 GND
3 Signal

t J2 : PWR FAN (Power Fan Connector)

Pin No. Function

1 GND
2 +12V
3 SENSE

t JP6 : Rlease Onboard VGA from occupying IRQ Resouce

1-2 short INT Disabled.
2-3 short INT Enabled.

t J9: System FAN Power Connector

Pin No. Function

1 GND.
2 +12V
3 SENSE

t J12 : ATX Power Control Selection

Pin No. Function

Open Soft off.
Short Full on.

t JP12 : RING Power On

Pin No. Function

3-3

6BXM

1 Signal.
2 GND.

t JP13 : Clear CMOS

Pin No. Function
1-2 Short Clear CMOS.
2-3 Short NORMAL.

t JP8 : Onboard Sound Function Selection

Pin No. Function
1-2 Close Onboard Sound Function Enabled.
2-3 Close Onboard Sound function Disabled.

t JP3 : Onboard VGA Function Selection

Pin No. Function
1-2 Short Disabled onboard VGA Function.
2-3 Short Enabled onboard VGA Function.

t JP1 : Keyboard Power On Selection

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

t JP11 : CASE OPEN (Optional)

Pin No. Function

1 Signal
2 GND

t JP14: Suspend To RAM Function

Pin No. Function

Short Enabled Suspend To RAM Function.
Open Normal Operation.

t IR: INFRARED Connector (OPTIONAL)

3-4

Hardware Installation

Pin No. Function

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

t JP17 : AGP Select

Pin No. Function

OPEN Normal
1-2 Short Special
2-3 Short GA-612

t JP18 : TEL:The Connector is for Modem with internal Voice connector

Pin No. Function

1 Signal
2 GND
3 GND
4 Signal

t SB-LINK : For PCI Audio / Sound Card use only (Optional)

Pin No. Function

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

3-5

6BXM

−

−

JP5 : For 2*11 PINs Jumper

GD

PW P+P−P−

JP5

1

RES

PW: Soft Power Connector

RES: Reset Switch

P+P−P−: Power LED

1

SPK: Speaker Connector

1

+

+

−

1

S P K

Open: Normal Operation
Short: Power On/Off

Open: Normal Operation
Short: For Hardware Reset System

PIN 1 : anode (+)
PIN 2 : cathode (−)
PIN 3 : cathode (−)

PIN 1 : VCC
PIN 2 : VCC
PIN 3 : Data
PIN 4 : Data

HD

1 1

GN

SPK : Internal Speaker Connector (Default)

+

1

PIN 1 : VCC (+)
PIN 2-PIN3 : Short
PIN 4 : Data (−)

3-6

HD: IDE Hard Disk Active LED

Hardware Installation

1

PIN 1: LED anode (+)
PIN 2: LED cathode (−)

GN: Green Function Switch

Open : Normal operation
Short : Entering Green Mode

GD: Green LED

PIN 1 : LED anode (+)

1

PIN 2 : LED cathode (−)

3.4. DRAM INSTALLATION

The mainboard can be installed with 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 ,bank 1& bank 2.

Since 168 pins DIMM module is 64 bits width, using 1 PCS which can match a
64 bits system. The total memory size is 16MB ~ 768MB 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.

3-7

6BXM

3.5. CPU SPEED SETUP

The default system bus speed is 66 / 100MHz. The user can change the DIP
SWITCH (SW2) selection to set up the CPU speed for 233 - 633MHz 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.

SW1:

CPU AGP PCICLK 1 2 3 4

66 66 33.4
75 75 37.5

83 83 41.65
100 66 33.43
112 75 37.33

133 89 44.33

SW2:

CLK RATIO 1 2 3 4

X3

X3.5

X4

X4.5

X5

X5.5

X6

X6.5

ON OFF ON ON

OFF OFF ON ON

ON ON OFF ON

OFF ON OFF ON

ON OFF OFF ON

OFF OFF OFF ON

ON ON ON OFF

OFF ON ON OFF

ON OFF OFF ON
ON ON OFF ON

ON OFF ON ON
OFF OFF OFF OFF
OFF ON OFF OFF
OFF OFF ON OFF

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

Note: We don’t recommend you to setup your system speed to 75, 83,

112 or 133MHz because these frequencies are not the standard
specifications for CPU, Chipset and most of the peripherals.
Whether your system can run under 75, 83, 112 or 133MHz
properly will depend on your hardware configurations: CPU,
SDRAM, Cards, etc.

3-8

Hardware Installation

3.6. CMOS RTC & ISA CFG CMOS SRAM

The mainboard contains 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 when it has consumed.

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 press and released by
user. The RESET switch is a 2 PINS connector and should be installed to RES
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 LED 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 devices.

3.11. 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.

3.12. KEYBOARD & PS/2 MOUSE INSTALLATION

The main board supports PS/2 Mouse. The BIOS will auto detect 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.

3-9