Gigabyte 686LX, GA - 686LX User Manual

GA - 686LX

USER'S MANUAL

Pentium II Processor MAINBOARD

REV. 1 First Edition

GA-686LX

2

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.

SEPTEMBER 03, 1997 Taipei, Taiwan

Table of Contents

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TABLE OF CONTENTS

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

2. SPECIFICATION.............................................................................................................2-1

2.1. HARDWARE..............................................................................................................2-1

2.2. SOFTWARE..............................................................................................................2-2

2.3. ENVIRONMENT........................................................................................................2-2

3. HARDWARE INSTALLATION........................................................................................3-1

3.1. UNPACKING .............................................................................................................3-1

3.2. MAINBOARD LAYOUT .............................................................................................3-2

3.3. QUICK REFERENCE FOR JUMPERS & CONNECTORS......................................3-2

3.4. DRAM INSTALLATION .............................................................................................3-4

3.5. CPU SPEED SETUP.................................................................................................3-5

3.6. CMOS RTC & ISA CFG CMOS SRAM.....................................................................3-5

3.7. SPEAKER CONNECTOR INSTALLATION..............................................................3-6

3.8. HARDWARE RESET SWITCH CONNECTOR INSTALLATION............................3-6

3.9. POWER LED CONNECTOR INSTALLATION.........................................................3-6

3.10. GREEN LED INSTALLATION.................................................................................3-6

3.11. IDE & ATAPI DEVICE INSTALLATION..................................................................3-6

3.12. PERIPHERAL DEVICE INSTALLATION................................................................3-6

3.13. KEYBOARD & PS/2 MOUSE INSTALLATION.......................................................3-7

3.14. KEYBOARD SETTING FUNCTION........................................................................3-7

4. BIOS CONFIGURATION.................................................................................................4-1

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

GA-686LX

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4.2. CONTROL KEYS.......................................................................................................4-2

4.3. GETTING HELP........................................................................................................4-3

4.3.1. Main Menu ......................................................................................................4-3

4.3.2. Status Page Setup Menu / Option Page Setup Menu .....................................4-3

4.4. THE MAIN MENU......................................................................................................4-3

4.5. STANDARD CMOS SETUP MENU..........................................................................4-5

4.6. BIOS FEATURES SETUP.........................................................................................4-9

4.7. CHIPSET FEATURES SETUP .................................................................................4-13

4.8. POWER MANAGEMENT SETUP ............................................................................4-14

4.9. PNP/PCI CONFIGURATION.....................................................................................4-20

4.10. INTEGRATED PERIPHERALS...............................................................................4-22

4.11. LOAD SETUP DEFAULTS......................................................................................4-27

4.12. USER PASSWORD ................................................................................................4-28

4.13. IDE HDD AUTO DETECTION ................................................................................4-29

4.14. HDD LOW LEVEL FORMAT...................................................................................4-29

4.15. SAVE & EXIT SETUP..............................................................................................4-30

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

5. AT TECHNICAL INFORMATION....................................................................................5-1

5.1. I/O BUS CONNECTOR PIN OUT.............................................................................5-1

5.1.1. ISA SLOT PIN OUT .......................................................................................5-1

5.1.2. PCI - BUS SLOT PIN OUT ............................................................................5-2

5.2. I/O & MEMORY MAP.................................................................................................5-3

5.3. TIMER & DMA CHANNELS MAP .............................................................................5-3

5.4. INTERRUPT MAP.....................................................................................................5-4

5.5. RTC & CMOS RAM MAP..........................................................................................5-5

APPENDIX A: POST MESSAGE........................................................................................A-1

APPENDIX B: POST CODES .............................................................................................B-1

APPENDIX C: BIOS DEFAULT DRIVE TABLE.................................................................C-1

APPENDIX D: PROBLEM SHEET......................................................................................D-1

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APPENDIX E: FCC DOCUMENT........................................................................................E-1