Gigabyte GA - 686KX User Manual
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Gigabyte GA - 686KX User Manual

Gigabyte GA - 686KX User Manual

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GA - 686KX
USER'S MANUAL
Pentium  II Processor MAINBOARD
REV. 1 Second Edition

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Summary of Contents for Gigabyte GA - 686KX

  • Page 1 GA - 686KX USER'S MANUAL Pentium  II Processor MAINBOARD REV. 1 Second Edition...
  • Page 2 GA-686KX 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. Third-party brands and names are the property of their respective owners. APRIL 26, 1997 Taipei, Taiwan TABLE OF CONTENTS 1.

  • Page 3: Table Of Contents

    Table of Contents 1.1. PREFACE....................1- 1.2. KEY FEATURES..................1- 1.3. PERFORMANCE LIST................1- 1.4. BLOCK DIAGRAM..................1- 1.5. INTRODUCE THE Pentium  II Processor..........1- 2. SPECIFICATION..................2- 2.1. HARDWARE...................2- 2.2. SOFTWARE....................2- 2.3. ENVIRONMENT..................2- 3. HARDWARE INSTALLATION..............3- 3.1. UNPACKING...................3- 3.2. MAINBOARD LAYOUT................3- 3.3. QUICK REFERENCE FOR JUMPERS & CONNECTORS....3- 3.4.
  • Page 4 GA-686KX 4.3.2. Status Page Setup Menu / Option Page Setup Menu....4- 4.4. THE MAIN MENU...................4- 4.5. STANDARD CMOS SETUP MENU............4- 4.6. BIOS FEATURES SETUP..............4- 4.7. CHIPSET FEATURES SETUP...............4- 4.8. POWER MANAGEMENT SETUP............4- 4.9. PNP/PCI CONFIGURATION..............4- 4.10. INTEGRATED PERIPHERALS............4- 4.11. LOAD SETUP DEFAULTS..............4- 4.12.

  • Page 5: Preface

    Introduction INTRODUCTION 1.1. PREFACE Welcome to use the GA - 686KX motherboard. The motherboard is a Pentium  II 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.

  • Page 6: Performance List

    GA-686KX 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 7: Block Diagram

    Introduction 1.4. BLOCK DIAGRAM Pentium II Processor Host Bus 3.3V Control Address Data Second Level Cache Addr Main Memory Cntl (DRAM) Data Cntl PCI Bus Control Address/Data Hard Disk Fast IDE Device(s) CD ROM PIIX3 Device(s) Device(s) ISA Bus...

  • Page 8: Introduce The Pentium  Ii Processor

    GA-686KX 1.5. INTRODUCE THE Pentium  II Processor Figure 1:Retention Mechanism & attach Mount Figure 2:OEM Pentium  II Processor...
  • Page 9 Introduction Figure 3:Heatsink / FAN & Heat sink support for OEM Pentium  II Processor Figure 4:Boxed Pentium  II Processor & Heat sink support...

  • Page 10: Specification

    GA-686KX SPECIFICATION 2.1. HARDWARE · Pentium  II processor 233 - 333 MHz. 242 pins slot1 on board. · Onboard Buzzer Alarm when detect "CPU FAN PROTECTION Failure". Onboard Buzzer Alarm when detect "CPU Overheat". Automatically slow down CPU speed when "CPU FAN Failure"...

  • Page 11: Software

    Specification & IRQ6) Supports 2 USB ports. Supports PS/2 Mouse. (Using IRQ12 ) Supports PS/2 Keyboard. (Using IRQ1 ) · Standby & Suspend mode support. GREEN FUNCTION Green switch & LED support. IDE & Display power down support. Monitor all IRQ / DMA / Display / I/O events. ·...

  • Page 12: Hardware Installation

    GA-686KX HARDWARE INSTALLATION 3.1. UNPACKING The mainboard package should contain the following: · The GA - 686KX mainboard. · The Retention Mechanism & Attach Mount · USER'S MANUAL for mainboard. · Cable set for IDE & Floppy device. · Diskette for BUS MASTER ATAPI device. 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.

  • Page 13: Mainboard Layout

    Hardware Installation separate. 3.2. MAINBOARD LAYOUT COMA COMB K.B. K.B. controller Mouse POWER1 SIMM6 Bank 2 Bank 1 Bank 0 SIMM1 POWER2 PCI5 PCI4 PCI3 PCI2 PCI1 GA-686KX SLOT8 SLOT6 SLOT4 SLOT1 1 2 3 4 BIOS DIP SWITCH IDE2 IDE1 FLOPPY Figure 3.1...
  • Page 14 GA-686KX For Floppy port J1: CPU cooling FAN Power Connector Pin No. Function GND. +12V SENSE J2: slot1 For Pentium  II processor installed. J3: SPEAKER Connector Pin No. Function Output J4: RESET Switch Pin No. Function RESET Input J5: POWER ON LED (PW-LED) Pin No.

  • Page 15: Dram Installation

    Hardware Installation J8: Reserved J9: ATX Power On/Off Pin No. Function Close & This is the soft switch (Power On/Off) of ATX Power Supply, Open Close & Open one time to Power On & again to Power Off. J10: GN-LED Pin No.

  • Page 16: Cpu Speed Setup

    GA-686KX SIMM module DRAM, and the DRAM speed must be 60 or 70 ns. The DRAM memory system on mainboard consists of bank 0, 1 & bank 2. 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.

  • Page 17: Cmos Rtc & Isa Cfg Cmos Sram

    Hardware Installation 3.6. CMOS RTC & ISA CFG CMOS SRAM There're RTC & CMOS SRAM on board, they have a power supply from internal 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 ISA device system configuration, so the system can automatically boot OS.

  • Page 18: Ide & Atapi Device Installation

    GA-686KX 3.11. IDE & ATAPI DEVICE INSTALLATION There are two Enhance PCI IDE ports (CN6,7) 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 19: 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. 4.1.

  • Page 20: Control Keys

    GA-686KX 4.2. CONTROL KEYS Up arrow Move to previous item Down arrow Move to next item Left arrow Move to the item in the left hand Right arrow Move to the item in the right hand Esc key Main Menu - Quit and not save changes into CMOS Status Page Setup Menu and Option Page Setup Menu - Exit current page and return to Main Menu PgUp key...

  • Page 21: Main Menu

    BIOS Configuration 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 22 GA-686KX This setup page includes all the items in a 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 23: Standard Cmos Setup Menu

    BIOS Configuration Abandon all CMOS value changes and exit setup. 4.5. STANDARD CMOS SETUP MENU 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>...
  • Page 24 GA-686KX year The year, from 1900 through 2099 · Time The time 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 identify the types of hard disk drive C drive F 4 devices that has been installed in the computer.
  • Page 25 BIOS Configuration 720K, 3.5 in. 3-1/2 inch double-sided drive; 720 kilobyte capacity 1.44M, 3.5 in. 3-1/2 inch double-sided drive; 1.44 megabyte capacity. · Floppy 3 Mode Support (for Japan Area) Disable Normal Floppy Drive. Drive A Drive A is 3 mode Floppy Drive. Drive B Drive B is 3 mode Floppy Drive.
  • Page 26 GA-686KX will stop for all other errors All, But Disk/Key The system boot will not stop for a keyboard or disk error; it will stop for all other errors · Memory The category is display-only which is determined by POST (Power On Self Test) of the BIOS.

  • Page 27: Bios Features Setup

    BIOS Configuration DOS uses this area to load device drivers to keep as much base memory free for application programs. Most use for this area is Shadow RAM. 4.6. BIOS FEATURES SETUP ROM PCI / ISA BIOS BIOS FEATURES SETUP AWARD SOFTWARE, INC.
  • Page 28 GA-686KX Enabled Enable cache Disabled Disable cache · Quick Power On Self Test This category speeds up Power On Self Test (POST) after you power on the computer. If it is set to Enable, BIOS will shorten or skip some check items during POST.
  • Page 29 BIOS Configuration Keypad is arrow keys · CPU FAN Failure Alarm The default value is Off. The onboard Buzzer will alarm when detect the “CPU FAN Failure”（must use FAN with sense function）. Function disable（If use heat sink without FAN or no- sense function FAN）.
  • Page 30 GA-686KX The default value is 250. 250-1000 Set the time delay from first key to repeat the same key in to computer. · Security Option This category allows you to limit access to the system and Setup, or just to Setup. The default value is Setup. System The system will not boot and access to Setup will be denied if the correct password is not entered at the prompt...

  • Page 31: Chipset Features Setup

    BIOS Configuration RAM by 16 K byte. The default value are Disabled. Enabled Optional shadow is enabled Disabled Optional shadow is disabled 4.7. CHIPSET FEATURES SETUP Figure 4.4: Chipset Features Setup · Auto Configuration The default value is Enabled. Enable For 60 - 70ns DRAM Timing. Disable For slow speed DRAM Timing.

  • Page 32: Power Management Setup

    GA-686KX The default value is Disabled. Enable ECC function when using 36 bit DRAM Module. PARITY Enable PARITY function when using 36 bit DRAM Module. Disabled Disable ECC & PARITY function. · PCI VGA Burst Write The default value is Enabled. Disabled Disable this function.
  • Page 33 BIOS Configuration Figure 4.5: Power Management Setup · Power Management The default value is Enabled. Enabled Enable Green function. Disabled Disable Green function. Please disable Green Function for Non-S CPU in OS/2, Unix, Window NT & Novell system. · PM Control by APM The default value is Yes.

  • Page 34: Pnp/Pci Configuration

    GA-686KX Blank Screen BIOS will only black monitor when gets into Green mode. DPMS Support BIOS will use DPMS Standard to control VGA card. (The Green type VGA card will turn of V/H- SYNC automatically.) · Standby Mode ( for Network Card using ) The default value is Disable.

  • Page 35: Integrated Peripherals

    BIOS Configuration Figure 4.6: PCI Slot Configuration · 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 36 GA-686KX Figure 4.7: Load Setup Defaults · IDE HDD Block Mode The default value is Enabled. Enabled Enable IDE HDD Block Mode Disabled Disable IDE HDD Block Mode · IDE Primary Master PIO (for onboard IDE 1st channel). The default value is Auto. Auto BIOS will automatically defect the IDE HDD Accessing mode.
  • Page 37 BIOS Configuration The default value is Auto. Auto BIOS will automatically defect the IDE HDD Accessing mode. Mode0~4 Manually set the IDE Accessing mode. · IDE Secondary Slave PIO (for onboard IDE 2nd channel). The default value is Auto. Auto BIOS will automatically defect the IDE HDD Accessing mode.

  • Page 38: Load Setup Defaults

    GA-686KX COM4/2E8 Enable onboard Serial port A and address is 2E8. Disabled Disable onboard Serial port A. · Onboard Serial Port 2 The default value is Auto. Auto BIOS will automatically setup the port B address. COM1/3F8 Enable onboard Serial port B and address is 3F8. COM2/2F8 Enable onboard Serial port B and address is 2F8.

  • Page 39: User Password

    BIOS Configuration 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 HDD LOW LEVEL FORMAT POWER MANAGEMENT SETUP SAVE & EXIT SETUP PNP/PCI CONFIGURATION Load SETUP Defaults (Y/N)? N EXIT WITHOUT SAVING INTEGRATED PERIPHERALS...

  • Page 40: Ide Hdd Auto Detection

    GA-686KX ROM PCI / ISA BIOS USER PASSWORD AWARD SOFTWARE, INC. STANDARD CMOS SETUP USER PASSWORD BIOS FEATURES SETUP IDE HDD AUTO DETECTION CHIPSET FEATURES SETUP HDD LOW LEVEL FORMAT POWER MANAGEMENT SETUP SAVE & EXIT SETUP Enter Password: PNP/PCI CONFIGURATION EXIT WITHOUT SAVING INTEGRATED PERIPHERALS LOAD SETUP DEFAULTS...
  • Page 41 BIOS Configuration Figure 4.9: IDE HDD Auto Detection Type "Y" will accept the H.D.D. parameter reported by BIOS. Type "N" will keep the old H.D.D. parameter setup. If the hard disk cylinder NO. is over 1024, then the user can select LBA mode or LARGER mode for DOS partition LARGE than 528 MB.

  • Page 42: Hdd Low Level Format

    GA-686KX 4.14. HDD LOW LEVEL FORMAT ROM PCI / ISA BIOS USER PASSWORD AWARD SOFTWARE, INC. STANDARD CMOS SETUP USER PASSWORD BIOS FEATURES SETUP IDE HDD AUTO DETECTION CHIPSET FEATURES SETUP HDD LOW LEVEL FORMAT POWER MANAGEMENT SETUP SAVE & EXIT SETUP PNP/PCI CONFIGURATION EXIT WITHOUT SAVING INTEGRATED PERIPHERALS...

  • Page 43: Save & Exit Setup

    BIOS Configuration 4.15. 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 HDD LOW LEVEL FORMAT POWER MANAGEMENT SETUP SAVE &...

  • Page 44: Exit Without Saving

    GA-686KX 4.16. 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 HDD LOW LEVEL FORMAT POWER MANAGEMENT SETUP SAVE & EXIT SETUP PCI CONFIGURATION Quit Without Saving (Y/N)? N EXIT WITHOUT SAVING...

  • Page 45: At Technical Information

    GA-686KX AT TECHNICAL INFORMATION 5.1. I/O BUS CONNECTOR PIN OUT 5.1.1. ISA SLOT PIN OUT -I/O CH CHK RESET SD07 SD06 IRQ9 SD05 SD04 DRQ2 SD03 -12V SD02 SD01 +12V SD00 -I/O CH RDY -SMEMW -SMEMR SA19 -IOW SA18 -IOR SA17 -MEMCS16 SBHE...

  • Page 46: Pci - Bus Slot Pin Out

    AT Technical Information 5.1.2. PCI - BUS SLOT PIN OUT -12V +12V INTA# INTB# INTC# INTD# PST#1 PST#2 RST# GNT# REQ# AD_31 AD_30 SBO# AD_29 SERR# AD_28 AD_27 AD_26 CBE#1 AD_15 AD_25 AD_14 AD_24 AD_13 CBE#3 IDSEL AD_12 AD_11 AD_23 AD_10 AD_22 AD_09...

  • Page 47: I/O & Memory Map

    GA-686KX 5.2. I/O & MEMORY MAP MEMORY MAP: [0000000-009FFFF] System memory used by DOS and application program. [00A0000-00BFFFF] Display buffer memory for VGA/ EGA/CGA/MONOCHROME adapter. [00C0000-00DFFFF] Reserved for I/O device BIOS ROM or RAM buffer. [00E0000-00EFFFF] Reserved for PCI device ROM. [00F0000-00FFFFF] System BIOS ROM.
  • Page 48 AT Technical Information NMI: Parity check error IRQ (H/W): 0 System TIMER interrupt from TIMER-0 1 KEYBOARD output buffer full 2 Cascade for IRQ 8-15 3 SERIAL port 2 4 SERIAL port 1 5 PARALLEL port 2 6 FLOPPY DISK adapter 7 PARALLEL port 1 8 RTC clock 9 Available...

  • Page 49: Rtc & Cmos Ram Map

    GA-686KX 5.5. RTC & CMOS RAM MAP RTC & CMOS: Seconds Second alarm Minutes Minutes alarm Hours Hours alarm Day of week Day of month Month Year Status register A Status register B Status register C Status register D Diagnostic status byte Shutdown byte FLOPPY DISK drive type byte Reserve...

  • Page 50: Appendix A: Post Message

    Appendix A: Post Message APPENDIX A: POST MESSAGE When the BIOS encounters an error that requires the user to correct something, either a beep code will sound or a message will be displayed in a box in the middle of the screen and the message PRESS F1 TO CONTINUE, CTRL-ALT-ESC OR DEL TO ENTER SETUP will be shown in the information box at the bottom.
  • Page 51 GA-686KX Display switch on the motherboard can be set to either monochrome or color. This indicates the switch is set to a different setting than indicated in Setup. Determine which setting is correct, and then either turn off the system and change the jumper, or enter Setup and change the VIDEO selection.
  • Page 52 Appendix A: Post Message controller is installed correctly and firmly. If there are no floppy drives installed, be sure the Diskette Drive selection in Setup is set to NONE. Ö Invalid EISA Configuration PLEASE RUN EISA CONFIGURATION UTILITY The non-volatile memory containing EISA configuration information was programmed incorrectly become...
  • Page 53 GA-686KX location along with your system's memory map to locate the bad chip. Ö OFFENDING ADDRESS NOT FOUND This message is used in conjunction with the I/O CHANNEL CHECK and RAM PARITY ERROR messages when the segment that has caused the problem cannot be isolated.
  • Page 54 Appendix A: Post Message The board installed is not responding to the ID request, or no board ID has been found in the indicated slot. When this error appears, the system will boot in ISA mode, which allows you to run the EISA Configuration Utility. Ö...

  • Page 55: Appendix B: Post Codes

    GA-686KX APPENDIX B: POST CODES EISA POST codes are typically output to port address 300h. ISA POST codes are typically output to port address 80h. POST Name Description Turn Off Chipset OEM Specific-Cache control. Cache Processor Test 1 Processor Status (1 FLAGS) Verification. Test the following processor status flags carry, zero, sign, overflow, The BIOS will set each of these flags, verify they are...
  • Page 56 Appendix B: Post Codes test Setup low memory Early chip set initialization. Memory presence test. OEM chip set routines. Clear low 64 K of memory. Test first 64 K memory. Early Cache Cyrix CPU initialization. Initialization Cache initialization. Setup Interrupt Initialize first 120 interrupt vectors with Vector Table SPURIOUS_INT-HDLR and initialize INT 00h-1Fh...
  • Page 57 GA-686KX Test Stuck NMI Verify NMI can be cleared. Bits (Parity/IO Check) Display CPU clock. 1B-1E Reserved Set EISA Mode If EISA non-volatile memory checksum is good, execute EISA initialization. If not, execute ISA tests an clear EISA mode flag. Test EISA Configuration Memory Integrity (checksum &...
  • Page 58 Appendix B: Post Codes Detect & Initialize Initialize math coprocessor. Math Coprocessor Reserved Reserved 48-4D Reserved Manufacturing Reboot if Manufacturing POST Loop pin is set. POST Loop or Otherwise display any messages (i.e., any non-fatal Display Messages errors that were detected during POST) and enter Setup.

  • Page 59: Appendix C: Bios Default Drive Table

    GA-686KX APPENDIX C: BIOS DEFAULT DRIVE TABLE Type Size Cylinders Heads Sectors Write / Land Example Model (MB) Precomp Zone 10 MB TEAC SD510 MMI 112, 5412 20 MB Seagate ST225, ST4026 31 MB 62 MB 47 MB 20 MB 65535 Seagate ST125 Tandon TM262...
  • Page 60 Appendix C: BIOS Default Drive Table 69 MB 65535 Seagate ST4096 44 MB Maxtor2085 69 MB 65535 Maxtor2140, Priam S14 41 MB Maxtor2190, Priam S19 68 MB 65535 Maxtor1085 Micropolis1325 53 MB Maxtor1105, 1120, 4780 94 MB 1024 65535 1024 Maxtor1170 128 MB 1024...

  • Page 61: Appendix D: Problem Sheet

    GA-686KX APPENDIX D: PROBLEM SHEET 1. Customer Data Tel. No. Name Fax. No. Address Purchase Date 2. Mainboard Date Rev. No. Model NO. Serial No. 3. System Configuration CPU Type: CPU Brand: CPU Speed: q 16 q 32 MB DRAM Type: q 80 q 70 q 60 ns...

  • Page 62: Appendix E: Fcc Document

    Appendix E: FCC Document APPENDIX E: FCC DOCUMENT FCC Compliance Statement: DECLARATION OF CONFORMITY Per FCC Part 2 Section 2. 1077(a) Responsible Party Name: G.B.T. INC. Address: 18305 Valley Blvd., Suite#A LA Puent, CA 91744 Phone/Fax No: (818) 854-9338/ (818) 854-9339 hereby declares that the product Product Name: Mother Board...
  • Page 63 GA-686KX You are cautioned that any change or modifications to the equipment not expressly approve by the party responsible for compliance could void Your authority to operate such equipment. This device complies with Part 15 of the FCC Rules. Operation is subjected to the following two conditions 1) this device may not cause harmful interference and 2) this device must accept any interference received, including interference that may cause undesired operation.

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