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Gigabyte GA-686LX User Manual

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1.
System power on by PS/2 Mouse: You can power on the
system by double clicking the right or left button of your
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.
Supports 3 steps ACPI LED
GA – 686LX3
USER'S MANUAL
Pentium ® ® II Processor MAINBOARD
REV. 1.0 Second Edition
Release Date 98.1.15
R-10-01-080123

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  • Page 1 GA – 686LX3 USER'S MANUAL System power on by PS/2 Mouse: You can power on the system by double clicking the right or left button of your PS/2 Mouse. 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.
  • Page 2 GA-686LX3 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 contained herein. Third-party brands and names are the property of their respective owners. January 14, 1998 Taipei, Taiwan...
  • Page 3 Quick Installation Guide I. Quick Installation Guide: CPU SPEED SETUP The default system bus 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 that of CPU.
  • Page 4 GA-686LX3 1. Pentium ® II 200 MHz 3 2 1 INTEL 440LX PIIX4 GA-686LX3 4 3 2 1 2. Pentium ® II 233 MHz 3 2 1 INTEL 440LX PIIX4 GA-686LX3 4 3 2 1...
  • Page 5 Quick Installation Guide 3. Pentium ® II 266 MHz 3 2 1 INTEL 440LX PIIX4 GA-686LX3 4 3 2 1 4. Pentium ® II 300 MHz 3 2 1 INTEL 440LX PIIX4 GA-686LX3 4 3 2 1...
  • Page 6 GA-686LX3 5. Pentium ® II 333 MHz 3 2 1 INTEL 440LX PIIX4 GA-686LX3 4 3 2 1 6. Pentium ® II 366 MHz 3 2 1 INTEL 440LX PIIX4 GA-686LX3 4 3 2 1...
  • Page 7 Quick Installation Guide II. Jumper setting : PWR : Power LED Connector INTEL 440LX PIIX4 GA-686LX3 FUNCTION LED (+) Power LED LED (-) SPK : Speaker Connector INTEL 440LX PIIX4 GA-686LX3 FUNCTION Data...
  • Page 8 GA-686LX3 RST : Reset Switch INTEL 440LX PIIX4 GA-686LX3 Open: Normal Close: Reset System GN : Green Function Switch INTEL 440LX PIIX4 GA-686LX3 Open: Normal Close: Enter Green Mode...
  • Page 9 Quick Installation Guide HD : IDE Hard Disk Active LED INTEL 440LX PIIX4 GA-686LX3 FUNCTION LED (+) HD LED LED (-) Soft PWR : Soft Power Connector INTEL 440LX PIIX4 GA-686LX3 Soft Power...
  • Page 10 GA-686LX3 POWER : Power Connector INTEL 440LX Pin No. Function PIIX4 3,5,7,13, 15-17 GA-686LX3 4,6,19,20 VCC(+5V) +12V -12V Power Good 5V SB PS-ON PS/2 Mouse / Keyboard Connector PS/2 Mouse INTEL 440LX PS/2 Keyboard PIIX4 Function Data GA-686LX3 VCC (+5V) Clock.
  • Page 11 Quick Installation Guide J2 : CPU Cooling Fan Power Connector INTEL 440LX FAN Power PIIX4 GA-686LX3 FUNCTION +12V SENSE IDE1: For Primary IDE port RED LINE INTEL 440LX PIIX4 GA-686LX3 IDE2 IDE1 FLOPPY...
  • Page 12 GA-686LX3 IDE2: For Secondary IDE port RED LINE INTEL 440LX PIIX4 GA-686LX3 IDE2 IDE1 FLOPPY J7 : FLOPPY PORT INTEL 440LX RED LINE PIIX4 GA-686LX3 IDE2 IDE1 FLOPPY...

  • Page 13: Quick Installation Guide

    Quick Installation Guide LPT PORT / COM A / COM B COMA COMB LPT PORT LPT PORT INTEL 440LX COM B COM A PIIX4 GA-686LX3 IDE2 IDE1 FLOPPY JP1 : Keyboard Power On Selection Keyboard Power On INTEL Default: Disable 440LX Enable Disable...
  • Page 14 GA-686LX3 CN1: USB Port Function Pin No. INTEL USB V0 440LX USB D0- USB D0+ USB V0 PIIX4 GA-686LX3 USB D1- USB D1+ IDE2 IDE1 FLOPPY J13: ATX Power Control Selection INTEL 440LX PIIX4 GA-686LX3 Close: Full On Open: Soft Off...
  • Page 15 Quick Installation Guide III. Top Performance Test Setting: Users have to modify the value for each item in chipset features as follow for top performance setting. ROM PCI / ISA BIOS CHIPSET FEATURES SETUP AWARD SOFTWARE, INC. Auto Configuration : Enabled DRAM Speed Selection : Fast Memory Buffer Strength...

  • Page 16: Table Of Contents

    GA-686LX3 TABLE OF CONTENTS 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 SPECIFICATION ................. 2-1 2.1. HARDWARE ......................2-1 2.2. SOFTWARE......................2-2 2.3.
  • Page 17 Table of Contents 3.10. IDE & ATAPI DEVICE INSTALLATION.............3-7 3.11. PERIPHERAL DEVICE INSTALLATION............3-7 3.12. KEYBOARD & PS/2 MOUSE INSTALLATION..........3-7 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.

  • Page 18: Introduction

    GA-686LX3 INTRODUCTION 1.1. PREFACE Welcome to use the GA–686LX3 motherboard. It is a Pentium ® II 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.

  • Page 19: Performance List

    Introduction 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.) •...

  • Page 20: Block Diagram

    GA-686LX3 1.4. BLOCK DIAGRAM 66MHz 14.318MHz 3.3V EDO/SDRAM DIMM Sockets SLOT Host Bus 66MHZ AGP Bus 82432LX 66MHz CHIPSET DRAM Bus 66MHz 33MHz 66MHz 52C64-25 33MHz Ultra DMA/33 24MHz IDE Ports 52C64-06 33MHz PCI Bus PIIX4 48MHz USB Ports 82371AB 14.318MHz IDE Bus CHIPSET...

  • Page 21: Introduce The Pentium ® Ii Processor

    Introduction 1.5. INTRODUCE THE Pentium ® ® II Processor & AGP Figure 1:Retention Mechanism & attach Mount Figure 2:OEM Pentium ® II Processor...
  • Page 22 GA-686LX3 Figure 3:Heatsink / FAN & Heat sink support for OEM Pentium ® II Processor Figure 4:Boxed Pentium ® II Processor & Heat sink support...

  • Page 23: What Is Agp

    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.

  • Page 24: Specification

    GA-686LX3 SPECIFICATION 2.1. HARDWARE • Pentium ® II processor 200 – 633 MHz. − − 242 pins 66MHz slot1 on board. • − 66 MHz system speed. SPEED − 66 MHz AGP bus speed. (133MHz 2*mode) − 33 MHz PCI-Bus speed. −...

  • Page 25: Software

    Specification − Suspend mode support. • GREEN FUNCTION − Green switch & ACPI LED support. − IDE & Display power down support. − Monitor all IRQ / DMA / Display / I/O events. − 1M bits FLASH RAM. • BIOS −...

  • Page 26: Hardware Installation

    GA-686LX3 HARDWARE INSTALLATION 3.1. UNPACKING The mainboard package should contain the following: • The GA – 686LX3 mainboard. • The Retention Mechanism & Attach Mount • USER'S MANUAL for mainboard. • Cable set for IDE, Floppy & I/O devices. • Diskette or CD for Mainboard Utility.

  • Page 27: Mainboard Layout

    Hardware Installation 3.2. MAINBOARD LAYOUT0 COMA COMB MOUSE BATT1 BIOS KB Power On Slot 1 Fan Power INTEL 440LX DIMM1 PIIX4 DIMM2 GA-686LX3 DIMM3 IDE2 ATX Power 4 3 2 1 IDE1 FLOPPY PW Led Soft Power ×Figure 3.1Ø...

  • Page 28: Quick Reference For Jumpers & Connectors

    GA-686LX3 3.3. QUICK REFERENCE FOR JUMPERS & CONNECTORS I/O Ports Connector USB port. For Primary IDE port. For Secondary IDE port. For PS/2 Keyboard port. For PS/2 Mouse port. For Floppy port For Serial port2 (COM B). For Serial port1 (COM A). For LPT port.
  • Page 29 Hardware Installation JP1 : Keyboard Power On Selection Pin No. Function Enabled Keyboard power on. Disabled Keyboard power on. RST : RESET Switch Pin No. Function RESET Input PWR : POWER ON LED ( PW-LED) Pin No. Function LED POWER (+) Slot 1 For Pentium ®...

  • Page 30: Dram Installation

    GA-686LX3 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 &...

  • Page 31: Cmos Rtc & Isa Cfg Cmos Sram

    Hardware Installation 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 The mainboard contains RTC &...

  • Page 32: Ide & Atapi Device Installation

    GA-686LX3 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.

  • Page 34: Bios Configuration

    BIOS Configuration 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.

  • Page 35: Getting Help

    GA-686LX3 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.

  • Page 36: Standard Cmos Setup Menu

    BIOS Configuration This setup page includes all the items in standard compatible 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. •...
  • Page 37 GA-686LX3 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 value you want in each item.
  • Page 38 BIOS Configuration 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.
  • Page 39 GA-686LX3 • 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. •...

  • Page 40: Bios Features Setup

    BIOS Configuration • 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...

  • Page 41: Virus Warning

    GA-686LX3 ROM PCI / ISA BIOS BIOS FEATURES SETUP AWARD SOFTWARE, INC. : Disabled Virus Warning Video BIOS Shadow : Enabled CPU Internal Cache : Enabled C8000 - CBFFF Shadow : Disabled External Cache : Enabled CC000 - CFFFF Shadow : Disabled CPU L2 Cache ECC Checking D0000 - D3FFF Shadow...
  • Page 42 BIOS Configuration • 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 • CPU L2 Cache ECC Checking The default value is Disabled.
  • Page 43 GA-686LX3 • 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 • VGA Boot From The default value is AGP System will boot from AGP Display Card System will boot from PCI VGA Card •...
  • Page 44 BIOS Configuration • Typematic Rate (Chars / Sec.) The default value is 6. 6-30 Set the maximum Typematic rate from 6 chars. Per second to 30 characters. 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.
  • Page 45 GA-686LX3 • OS Select For DRAM>64MB The default value is Non-OS2. Non-OS2 Using non-OS2 operating system. 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.

  • Page 46: Chipset Features Setup

    BIOS Configuration 4.7. CHIPSET FEATURES SETUP ROM PCI / ISA BIOS CHIPSET FEATURES SETUP AWARD SOFTWARE, INC. Auto Configuration : Enabled *DRAM Speed Selection : Normal Memory Buffer Strength : Middle DRAM Data Integrity Mode : Non-ECC Video RAM Cacheable : Disabled 16 Bit I/O Recovery Time Memory Hole At 15M-16M...
  • Page 47 GA-686LX3 • Memory Buffer Strength The default value is Middle. Middle For Middle Memory Buffer strength. For Low Memory Buffer strength. High For High Memory Buffer strength. • DRAM Data Integrity Mode The default value is Non-ECC. Non-ECC For 64bit standard type DIMM module. For 72bit ECC type DIMM module.
  • Page 48 BIOS Configuration • 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.

  • Page 49: Power Management Setup

    GA-686LX3 4.8. POWER MANAGEMENT SETUP ROM PCI / ISA BIOS POWER MANAGEMENT SETUP AWARD SOFTWARE, INC. Reload Global Timer Events Power Management : Enable IRQ [3-7,9-15] ,NMI : Enabled PM Control by APM : Yes Primary IDE 0 : Disabled Primary IDE 1 : Disabled Suspend Mode...
  • Page 50 BIOS Configuration • Suspend Mode The default value is Disable. Disabled Disable Suspend Mode. 1 min - 1 Setup the timer to enter Suspend Mode. Hour • HDD Power Down The default value is Disable. Disable Disable HDD Power Down mode function. 1-15 mins.
  • Page 51 GA-686LX3 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.

  • Page 52: Pnp/Pci Configuration

    BIOS Configuration 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. 4.9. PNP/PCI CONFIGURATION ROM PCI / ISA BIOS PNP/PCI CONFGURATION AWARD SOFTWARE, INC.
  • Page 53 GA-686LX3 Enable PNP OS Installed function. 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. •...

  • Page 54: Integrated Peripherals

    BIOS Configuration 4.10. INTEGRATED PERIPHERALS ROM PCI / ISA BIOS INTEGRATED PERIPHERALS AWARD SOFTWARE, INC. IDE HDD Block Mode : Enabled PS/2 Mouse Power On : Disabled IDE Primary Master PIO : Auto Keyboard Power On : Disabled IDE Primary Slave PIO : Auto ** KB Power On Multikey : Enter...
  • Page 55 GA-686LX3 • IDE Primary Slave PIO (for onboard IDE 1st channel). The default value is Auto. Auto BIOS will automatically 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.
  • Page 56 BIOS Configuration • IDE Secondary Master UDMA. The default value is Auto. Auto BIOS will automatically detect the IDE HDD Accessing mode. Disabled Disable UDMA function. • IDE Secondary Slave UDMA. The default value is Auto. Auto BIOS will automatically detect the IDE HDD Accessing mode.
  • Page 57 GA-686LX3 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.
  • Page 58 BIOS Configuration The default value is SPP. Using Parallel port as Standard Printer Port. Using Parallel port as Enhanced Parallel Port. 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.

  • Page 59: Load Setup Defaults

    GA-686LX3 4.11. LOAD SETUP DEFAULTS ROM PCI / ISA BIOS LOAD SETUP DEFAULTS AWARD SOFTWARE, INC. STANDARD CMOS SETUP USER PASSWORD BIOS FEATURES SETUP IDE HDD AUTO DETECTION CHIPSET FEATURES SETUP SAVE & EXIT SETUP POWER MANAGEMENT SETUP EXIT WITHOUT SAVING PNP/PCI CONFIGURATION Load SETUP Defaults (Y/N)? N INTEGRATED PERIPHERALS...

  • Page 60: User Password

    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 USER PASSWORD BIOS FEATURES SETUP IDE HDD AUTO DETECTION...

  • Page 61: Ide Hdd Auto Detection

    GA-686LX3 Setup. 4.13. IDE HDD AUTO DETECTION ROM PCI / ISA BIOS IDE HDDD AUTO DETECTION AWARD SOFTWARE, INC. HARD DISKS TYPE SIZE CYLS. HEAD PRECOMP LANDZ SECTOR MODE Primary Master : Select Primary Master Option (N=Skip): N OPTION SIZE CYLS.

  • Page 62: Save & Exit Setup

    BIOS Configuration 4.14. SAVE & EXIT SETUP ROM PCI / ISA BIOS SAVE & EXIT SETUP AWARD SOFTWARE, INC. STANDARD CMOS SETUP USER PASSWORD BIOS FEATURES SETUP IDE HDD AUTO DETECTION CHIPSET FEATURES SETUP SAVE & EXIT SETUP POWER MANAGEMENT SETUP EXIT WITHOUT SAVING PNP/PCI CONFIGURATION SAVE to CMOS and EXIT (Y/N)? N...

  • Page 63: Exit Without Saving

    GA-686LX3 4.15. EXIT WITHOUT SAVING ROM PCI / ISA BIOS EXIT WITHOUT SAVING AWARD SOFTWARE, INC. STANDARD CMOS SETUP USER PASSWORD BIOS FEATURES SETUP IDE HDD AUTO DETECTION CHIPSET FEATURES SETUP SAVE & EXIT SETUP POWER MANAGEMENT SETUP EXIT WITHOUT SAVING PCI CONFIGURATION Quit Without Saving (Y/N)? N INTEGRATED PERIPHERALS...
  • Page 64 FCC Compliance Statement: DECLARATION OF CONFORMITY Per FCC Part 2 Section 2. 1077(a) This equipment has been tested and found to comply with limits for a Class B digital device , Responsible Party Name: G.B.T. INC. pursuant to Part 15 of the FCC rules. These Address: 18305 Valley Blvd., Suite#A LA Puent, CA 91744 limits are designed to provide reasonable...

  • Page 65: Declaration Of Conformity

    Declaration of Conformity We, Manufacturer/Importer (full address) G.B.T. Technology Träding GMbH Ausschlager Weg 41, 1F, 20537 Hamburg, Germany declare that the product ( description of the apparatus, system, installation to which it refers) Mother Board GA-686LX3 is in conformity with (reference to the specification under which conformity is declared) in accordance with 89/336 EEC-EMC Directive EN 55011...

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