Gigabyte 686LX3 User manual

Table Of Contents
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 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........................................................................................3-1
3.3. QUICK REFERENCE FOR JUMPERS & CONNECTORS ................................3-3
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

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3.9. POWER LED CONNECTOR INSTALLATION ...................................................3-8
3.10. IDE & ATAPI DEVICE INSTALLATION.............................................................3-8
3.11. PERIPHERAL DEVICE INSTALLATION...........................................................3-8
3.12. KEYBOARD & PS/2 MOUSE 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............................................................................4-13
4.8. POWER MANAGEMENT SETUP.......................................................................4-15
4.9. PNP/PCI CONFIGURATION...............................................................................4-19
4.10. LOAD BIOS DEFAULTS....................................................................................4-21
4.11. LOAD SETUP DEFAULTS ................................................................................4-22
4.12. INTEGRATED PERIPHERALS .........................................................................4-23
4.13. SUPERVISOR PASSWORD/USER PASSWORD...........................................4-28
4.14. IDE HDD AUTO DETECTION...........................................................................4-29
4.15. SAVE & EXIT SETUP........................................................................................4-30
4.16. EXIT WITHOUT SAVING............................................................................…..4-31

Introduction
1-1
1. INTRODUCTION
1.1. PREFACE
Welcome to use the 686LX3 motherboard. It is a PentiumII Processor based
PC / ATcompatible systemwith AGP/ PCI/ ISABus, andhas beendesigned 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 Processor based PC / AT compatible mainboard.
qSlot 1 supports PentiumII processor running at 200-633 MHz.
qIntel 440LX chipset, Supports AGP / SDRAM / Ultra DMA/33 IDE/ Keyboard
and PS/2 Mouse Power On / ACPI features.
qSupports 3xDIMMs using 3.3V EDO or SDRAM DIMM module.
qSupports 8 MB - 768 MB EDO / 384MB 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 2xCOM (16550), 1xLPT (EPP / ECP), 1x1.44MB Floppy port.
qSupports 2xUSB ports, 1xPS/2 Mouse.
qLicensed AWARD BIOS, 1Mbit FLASH RAM.
q30.5 cm x 18 cm ATX SIZE form factor, 4 layers PCB.

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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 processor
•DRAM (32 x 2) MB SDRAM (LGS GM72V16821GT10K)
•CACHE SIZE 512 KB included in CPU
•DISPLAY GA-600 AGP Display Card (4MB SGRAM)
•STORAGE Onboard IDE (IBM DHEA-34330)
•O.S. Windows® 95 OSR2.1
•DRIVER Display Driver at 1024 x 768 x 64k colors at 75Hz.
TRIONES Bus Master IDE Driver 3.70
Intel PentiumII
Processor 266MHz 300MHz
Winbench97
CPU mark32 692 759
Business Disk 1940 2070
Hi-End Disk 5900 6210
Business Graphics 116 126
Hi-End Graphics 50.8 55.4
Winstone97Business 62.1 64.8
Hi-End 30.7 32.1

Introduction
1-3
3.3V EDO/SDRAM
DIMM Sockets
Floppy Port
1.4. BLOCK DIAGRAM
66MHZ
24MHz
66MHz
14.318MHz
33MHz
33MHz
33MHz
66MHz
66MHz
Ultra DMA/33
IDE Ports
IDE Bus
PCI Bus
ISA Bus
AGP Bus
LPT Port
Keyboard
COM Ports
DRAM Bus
PS/2 Mouse
USB Bus
USB Ports
14.318MHz
48MHz
14.318MHz
I/O
CHIPSET
83977TF
/EF
66MHz
AGP
SLOT
Host Bus
PAC
82443LX
CHIPSET
PLL
52C64-25
PIIX4
82371AB
CHIPSET
PLL
52C64-06

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1.5. INTRODUCE THE Pentium

II Processor & AGP
Figure 1:Retention Mechanism & attach Mount
Figure 2:OEM PentiumII Processor

Introduction
1-5
Figure 3:Heatsink / FAN & Heat sink support for OEM PentiumII Processor
Figure 4:Boxed PentiumII Processor & Heat sink support

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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.

Specification
2-1
2. SPECIFICATION
2.1. HARDWARE
•CPU −PentiumII processor 200 –633 MHz.
−242 pins 66MHz slot1 on board.
•SPEED −66 MHz system speed.
−66 MHz AGP bus speed. (133MHz 2X mode)
−33 MHz PCI-Bus speed.
−8 MHz AT bus speed.
•DRAM MEMORY −3 banks 168 pins DIMM module sockets on board.
−Use 8 / 16 / 32 / 64 / 128 / 256 MB DIMM module
DRAM.
−8 ~ 768 MB EDO / 384 MB SDRAM.
−Supports 3.3V SDRAM / EDO type DRAM.
−Supports ECC or Non-ECC type DRAM.
•CACHE MEMORY −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 −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.
•I/O PORTS −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.

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•GREEN FUNCTION −Suspend mode support.
−Green switch & ACPI LED support.
−IDE & Display power down support.
−Monitor all IRQ / DMA / Display / I/O events.
•BIOS −2M bits FLASH RAM.
−Supports Plug & Play, DMI, ACPI Function.
•DIMENSION −ATX Form Factor, 4 layers PCB.
2.2. SOFTWARE
•DRIVER −Bus Master IDE Driver.
−Suspend to HD utility.
−Patch_95.
•BIOS −Licensed AWARD BIOS.
−AT CMOS Setup, BIOS / Chipset Setup, Green
Setup, Hard Disk Utility included.
•O.S. −Operation with MS-DOS, Windows95,
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).
•Vibration −0 to 1,000 Hz.
•Electricity −4.9 V to 5.2 V. (Max. 20A current at 5V.)