Gigabyte 6GXU User manual

6GXU
1
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 / III XEON SLOT2 Processor ........................... 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................................ 3-2
3.4. DRAM INSTALLATION....................................................................................... 3-6
3.5. CPU SPEED SETUP........................................................................................... 3-6
3.6. CMOS RTC & ISA CFG CMOS SRAM............................................................... 3-7
3.7. SPEAKER CONNECTOR INSTALLATION........................................................ 3-7
3.8. HARDWARE RESET SWITCH CONNECTOR INSTALLATION...................... 3-7
3.9. POWER LED CONNECTOR INSTALLATION................................................... 3-7

Table of Contents
2
3.10. IDE & ATAPI DEVICE INSTALLATION............................................................ 3-7
3.11. PERIPHERAL DEVICE INSTALLATION.......................................................... 3-7
3.12. KEYBOARD & PS/2 MOUSE INSTALLATION................................................. 3-8
3.13. SCSI DEVICE INSTALLATION......................................................................... 3-8
4. BIOS CONFIGURATION
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........................................................................... 4-14
4.8. POWER MANAGEMENT SETUP...................................................................... 4-18
4.9. PNP/PCI CONFIGURATION .............................................................................. 4-21
4.10. LOAD BIOS DEFAULTS................................................................................... 4-23
4.11. LOAD PERFORMANCE DEFAULTS ............................................................... 4-24
4.12. INTEGRATED PERIPHERALS......................................................................... 4-25
4.13. SUPERVISOR PASSWORD/USER PASSWORD.......................................... 4-31
4.14. IDE HDD AUTO DETECTION.......................................................................... 4-32
4.15. SAVE & EXIT SETUP ....................................................................................... 4-33
4.16. EXIT WITHOUT SAVING ................................................................................. 4-34

6GXU
1-1
1. INTRODUCTION
1.1. PREFACE
Welcome to use the 6GXU motherboard. It is a PentiumII/III XEON
SLOT2 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
qIntel PentiumII / III XEON SLOT2 Processor based PC / AT compatible
mainboard.
qCPU1 supports PentiumII / III XEON SLOT2 processor running at 400-
650MHz.
qIntel 440GX chipset, Supports AGP / SDRAM / Ultra DMA/33 IDE / Wake
on LAN / Keyboard and PS/2 Mouse Power On / ACPI features.
qSupports Intel LDCMNetwork Manageability.
qSupports 4xDIMMs using 3.3V SDRAM DIMM module.
qSupports 8 MB - 2 GB SDRAM memory on board.
qSupports ECC or Non-ECC type DRAM module.
q1xAGP slot, 4xPCI Bus slots, 3xISA Bus slots.
qSupports 2 channels Ultra DMA/33 IDE ports for 4 IDE Devices.
qSupports both Ultra SCSI, Ultra Wide SCSI and two Ultra II SCSI ports.
qSupports 2xCOM (16550), 1xLPT (EPP / ECP), 1x Floppy port.
qSupports 2xUSB ports, 1xPS/2 Mouse, 1xPS/2 Keyboard.
qLicensed AWARD BIOS, 2M bits FLASH RAM.
qSupport Dual BIOS.

Introduction
1-2
q30.5 cm x 25 cm ATX SIZE form factor, 4 layers PCB.
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II XEON SLOT2 450MHz
•DRAM (128x2)MB SDRAM (MITSUBISHI M5M4V64S30ATP-8)
•CACHE SIZE 2MB included in CPU
•DISPLAY GA-630 AGP Display Card (16MB SGRAM)
•STORAGE Onboard Ultra-II SCSI (Seagate ST39102LW)
•O.S. Windows NT™4.0
•DRIVER Display Driver at 1024 x 768 x 64 colors x 75Hz.
Adaptec PCI Ultra II SCSI Driver
Processor Intel PentiumII XEON SLOT2
450MHz (100*4.5)
Winbench99
CPU mark32 1270
FPU Winmark 2350
Business Disk 5730
Hi-End Disk 400
Business Graphics 234
Hi-End Graphics 11100
Winstone99 Business 35.2
Hi-End 31.8

6GXU
1-3
1.4. BLOCK DIAGRAM
48MHz
3.3V EDO/SDRAM
DIMM Sockets
14.318MHz
100
MHz
Ultra DMA/33
IDE Ports
IDE Bus
PCI Bus
ISA Bus
AGP Bus
LPT Port
Keyboard
Floppy Port
COM Ports
DRAM Bus
PS/2 Mouse
USB Bus
USB Ports
14.318MHz
48MHz
14.318MHz
I/O
CHIPSET
Winbond
83977EF
SLOT2
Host Bus
INTEL
82443GX
CHIPSET
Clock Gen
Buffer
PIIX4
82371EB
CHIPSET
Clock Gen
AGP
66MHz 100
MHz
100
MHz
100MHz
33
MHz
PCI Bus
40MHz
OSC
SCSI
CHIPSET
AIC-7890P
Ultra SCSI Port
Ultra Wide SCSI
INT. LVD
EXT. LVD

Introduction
1-4
1.5. INTRODUCE THE Pentium

II / III XEON SLOT2 Processor &
AGP
Figure 1:Retention Mechanism & attach Mount
Figure 2:OEM PentiumII / III XEON SLOT2 Processor

6GXU
1-5
Figure 3:Heatsink / FAN & Heat sink support for OEM PentiumII/ III XEON
SLOT2 Processor
Figure 4:Boxed PentiumII / III XEON SLOT2 Processor & Heat sink

Introduction
1-6
support
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.

6GXU
2-1
2. SPECIFICATION
2.1. HARDWARE
•CPU −PentiumII / III XEON SLOT2 processor 400 –650
MHz.
−330 pins 100MHz XEON SLOT2 on board.
•PROTECTION −Speaker Alarm when detect "CPU FAN Failure" or
“CPU Overheat”.
−Automatically slow down CPU speed when "CPU
Overheat".
−Intel LDCMsupported.
−H/W monitor power status (±5V, ±12V, 5V
SB,VGTL , CPU voltage & CMOS battery
voltage).(Optional)
−CPU Over Voltage .
•SPEED −100 MHz system speed.
−66 MHz AGP bus speed. (2X mode 133MHz)
−33 MHz PCI-Bus speed.
−8 MHz AT bus speed.
•DRAM MEMORY −4 banks 168 pins DIMM module sockets on board.
−Use 8 / 16 / 32 / 64 / 128 / 256 / 512 MB DIMM
module DRAM.
−8 ~ 2 GB SDRAM.
−Supports 3.3V SDRAM.
−Supports ECC or Non-ECC type DRAM.
•CACHE MEMORY −32 KB 1st cache memory included in CPU.
−512KB/1MB/2MB 2nd cache in CPU.
−Supports DIB speed mode for L2 Cache.
•I/O BUS SLOTS −4 33MHz Master / Slave PCI-BUS.
−3 8MHz 16 bits ISA BUS.
−1 66MHz / 133MHz AGP bus.
•IDE PORTS −2 Ultra DMA/33 Bus Master IDE channels on
board.(Using IRQ14,15)
−Support Mode 3,4 IDE & ATAPI CD –ROM.

Specification
2-2
•SCSI PORTS −Supports 1 Ultra Wide SCSI port.
−Supports 1 Ultra SCSI port.
−Supports 2 Ultra II SCSI port.
•I/O PORTS −Supports 2 16550 COM ports.
−Supports 1 EPP/ECP LPT port.
−Supports 1 Floppy port.
−Supports 2 USB ports.
−Supports PS/2 Mouse & Keyboard.
•GREEN FUNCTION −Suspend mode support.
−Green switch & ACPI LED support.
−IDE & Display power down support.
−Monitor all IRQ / DMA / Display / I/O events.
•BIOS −Dual FLASH ROM.(DIP 2M & PLCC 2M)
−Supports Plug & Play, DMI Function.
−Supports Dual BIOS.
•DIMENSION −ATX Form Factor, 4 layers PCB.
2.2. SOFTWARE
•DRIVER −Intel LDCM(optional.)
−Health monitor Utility.
−Bus Master IDE Driver.
−Adaptec SCSI Driver.
•BIOS −Licensed AWARD BIOS.
−AT CMOS Setup, BIOS / Chipset Setup, Green
Setup, Hard Disk Utility included.
−Monitor Health status.
•O.S. −Operation with MS-DOS, Windows95,
Windows98,WINDOWSNT, OS/2, NOVELL
and SCO UNIX.
2.3. ENVIRONMENT
•Ambient Temp. −0°C to +50°C (Operating).
•Relative Hum. −0 to +85% (Operating).
•Altitude −0 to 10,000 feet (Operating).

6GXU
2-3
•Vibration −0 to 1,000 Hz.
•Electricity −4.9 V to 5.2 V. (Max. 20A current at 5V.)

6GXU
3-1
3. HARDWARE INSTALLATION
3.1. UNPACKING
The mainboard package should contain the following:
•The 6GXU mainboard.
•The Retention Mechanism & Attach Mount
•USER'S MANUALS for mainboard & SCSI device.
•Cable set for IDE, Floppy, SCSI & I/O devices.
•Diskettes and CD for Mainboard Utility.
•External LVD 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.
M DO NOT APPLY POWER TO THE BOARD IF IT HAS BEEN DAMAGED.

Hardware Installation
3-2
3.2. MAINBOARD LAYOUT
6GXU
INTEL
443GX
PIIX4
Adaptec
AIC-7890
Floppy
IDE 1
IDE 2
ATX PWR
ULTRA
ULTRA WIDE
External ULTRA II
Internal ULTRA II
JP2
PS/2
USB
JP3
COMA COMB
LPT
CPU
FAN
POW
FAN
RING PWR
ON
AGP
PCI 1
PCI 2
PCI 3
ISA 2
ISA 1
SYS
FAN
SW BAT
IR
JP16
JP10
JP17
JP6
WAKE ON LAN
BANK 0
BANK 1
BANK 3
JP12
Main BIOS Backup
BIOS
BZ 1
×Figure 3.1Ø
3.3. QUICK REFERENCE FOR JUMPERS & CONNECTORS
tI/O Ports Connector
USB USB port.
Ultra SCSI Ultra SCSI port.
Ultra Wide SCSI Ultra Wide SCSI port.
Ultra II SCSI Ultra II SCSI port.
IDE1 For Primary IDE port.
IDE2 For Secondary IDE port.
PS/2 For PS/2 Keyboard/Mouse port.
Floppy For Floppy port.
COM B For Serial port2 (COM B){Support Modem Ring on}.
COM A For Serial port1 (COM A).
LPT For LPT port.
ATX PWR For ATX Power Connector.
tSlot 2
For PentiumII / III XEON SLOT2 processor installed.

6GXU
3-3
tIR : INFRARED Connector (IR) -- Function Option
Pin No. Function
1IR Data Output
2GND
3IR Data Input
4NC
5POWER (+)
tCPU FAN : CPU cooling FAN Power Connector
Pin No. Function
1GND.
2+12V
3SENSE
tPWR FAN : Power FAN Connector
Pin No. Function
1GND.
2+12V
3SENSE
tSYSTEM FAN : SYSTEM FAN Connector
Pin No. Function
1GND.
2+12V
3SENSE
tJP2 : Keyboard Power On Selection
Pin No. Function
1-2 short Enabled Keyboard Power On
2-3 short Disabled Keyboard Power On (Default)
tWake on LAN
Pin No. Function
1+5V SB
2GND
3Signal

Hardware Installation
3-4
tRING PWR ON
Pin No. Function
1+5V SB
2GND
tSB-LINK : For PCI Audio / Sound Card use only
Pin No. Function
1Signal
2GND
3NC
4Signal
5GND
6Signal
tJP10:Onbaord PCI SCSI Function
Pin No. Function
1-2 short PCI SCSI Enable (Default).
2-3 short PCI SCSI Disable.
tJP17:Onbaord PCI SCSI LED Function
Pin No. Function
1-2 short PCI SCSI LED Disable.
2-3 short PCI SCSI LED Enable (Default).
tJP6:Onbaord Spread Spectrum Select
Pin No. Function
Open Down Spread
Short Center Spread
JP16 : 2*11 PIN Jumper
PW P+P−P−H+
RE SPKR
GN
G−
JP16 1
1 1
1H−
G+GN

6GXU
3-5
PW: Soft Power Connector
Open: Normal Operation
Short: Power On/Off
RE: Reset Switch Open: Normal Operation
Short: For Hardware Reset System
P+P − P − : Power LED
PIN 1 : anode (+)
PIN 2 : cathode (−)
PIN 3 : cathode (−)
SPKR : Speaker Connector
PIN 1 : VCC
PIN 2 : NC
PIN 3 : NC
PIN 4 : Data
SPKR : Internal Speaker Connector (Default)
PIN 1 : VCC (+)
PIN 2-PIN3 : Short
PIN 4 : Signal (−)
H + H − : IDE Hard Disk Active LED
PIN 1: LED anode (+)
PIN 2: LED cathode (−)
GN: Green Function Switch
Open : Normal operation
Short : Entering Green Mode
G − G + : Green LED
PIN 1 : LED anode (+)
PIN 2 : LED cathode (−)
1
1
1
−
1+
1+
−

Hardware Installation
3-6
3.4. DRAM INSTALLATION
The mainboard can be installed with 8 / 16 / 32 / 64 / 128 / 256 / 512 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 ~ 2 GB EDO or 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 bus speed can be set to 100MHz. The user can change the DIP
SWITCH (SW) selection to set up the CPU speed for different processors.
The CPU speed must match with the frequency RATIO and Front Side Bus
(FSB) speed. It will cause system hanging up if the frequency RATIO and
FSB Speed do not match with the CPU.
On: O / OFF: X
XEON SLOT2
CPU 1 2 3 4 5 6 7 8
400 / 100 Mhz O O XOX X X X
450 / 100 Mhz XOXOX X X X
500 / 100 Mhz OX X OX X X X
550 / 100 Mhz X X X OX X X X
600 / 100 Mhz O O O XXXXX
650 / 100 Mhz XO O XXXXX
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 main board.

6GXU
3-7
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
SPKR is used to connect speaker. Anode connects +, Cathode connects −.
Pin2-3 short is internal speaker(Default value).
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 RE 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
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.

Hardware Installation
3-8
3.12. KEYBOARD & PS/2 MOUSE INSTALLATION
The main board supports PS/2 Mouse (J1). 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.
3.13. SCSI DEVICE INSTALLATION
There are four SCSI ports on board, One is 8bit SCSI port for ULTRA SCSI
device, the other one for Ultra wide SCSI , another is for Ultra II SCSI. And
total 15 SCSI devices can exist in a system.
Single Ended and LVD Terminator Control are controlled by BIOS Setup (In
the INTEGRATED PERIPHERALS Setup page.)
Terminator ON/OFF rules
State 1. Ultra or Ultra wide SCSI Devices connecting to SE Port :
CASE 1: Single Ended Termination: Both
LVD Terminator Control : Enabled
1System has 16 bit SCSI
Mainboard
SCSI DEVICE
SCSI DEVICE
Terminator ON
Terminator OFF
Terminator ON
16 bit 16 bit
SE
15
System has only 8 bit SCSI device
Mainboard
Terminator ON
Terminator OFF
Terminator ON
SCSI DEVICE SCSI DEVICE
8 bit 8 bit
SE
7
2