Instruction/ maintenance manual of the product GA-686LX Gigabyte
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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.
Table of Contents 3 TABLE OF CONTENTS 1. INTRODUCTION ............................................................................................................. 1- 1 1.1. PREFACE .....................................................................
GA-686LX 4 4.2. CONTROL KEYS ....................................................................................................... 4- 2 4.3. GETTING HELP ...............................................................................................
Table of Contents 5 APPENDIX E: FCC DOCUMENT ........................................................................................ E-1.
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Introduction 1- 1 1. INTRODUCTION 1.1. PREFACE Welcome to use the GA - 686LX motherboard. The motherboard 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.
GA-686LX 1- 2 q ATX form factor, Double stack I/O connector, 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.
Introduction 1- 3 14.318MHz 66MHz 66MHz 8MHz ISA Slots 3.3V EDO/SDRAM DIMM Sockets Floppy Port Hi-End 30.6 32.6 1.4. BLOCK DIAGRAM 14.318MHz 66MHz 24MHz Ultra DMA/33 IDE Ports IDE Bus PCI Bus 66MHz AGP SLOT PCI Bus 33MHz 33MHz 33MHz 14.
GA-686LX 1- 4 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.
GA-686LX 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-bit at 66MHz vs.
Specification 2- 1 2. SPECIFICATION 2.1. HARDWARE • CPU − Pentium II processor 233 – 633 MHz. − 242 pins 66MHz slot1 on board. • PROTECTION − Onboard Buzzer Alarm when detect "CPU FAN Failure" or “ CPU Overheat ” . − Automatically slow down CPU speed when "CPU FAN Failure" or "CPU Overheat".
GA-686LX 2- 2 • I/O PORTS − Supports 2 16550 COM ports. (Using IRQ4, 3) − Supports 1 EPP/ECP LPT port. (Using IRQ7 or 5 and DMA3 or 1) − Supports 1 1.44/2.88 MB Floppy port. (Using DMA2 & IRQ6) − Supports 2 USB ports. − Supports PS/2 Mouse.
Hardware Installation 3- 1 3. HARDWARE INSTALLATION 3.1. UNPACKING The mainboard package should contain the following: • The GA - 686LX mainboard. • The Retention Mechanism & Attach Mount • USER'S MANUAL for mainboard. • Cable set for IDE & Floppy device.
GA-686LX 3- 2 separate. 3.2. MAINBOARD LAYOUT SLOT6 PCI1 PCI2 PCI3 PCI4 COMA COMB LPT USB KB Mouse ATX POWER1 1 2 3 4 S1 BIOS RESET HD-LED GN-SW CN6 CN7 IDE1 IDE2 CN8 FLOPPY CN1 CN2 CN3 CN4 CN5 J2 DIM.
Hardware Installation 3- 3 For Pentium II processor installed. t J2: CPU cooling FAN Power Connector Pin No. Function 1 GND. 2 +12V 3 SENSE t J3: SPEAKER Connector Pin No. Function 1 VCC 2 NC. 3 NC. 4 Output t J4: RESET Switch Pin No. Function 1 RESET Input 2 GND t J5: POWER ON LED (PW-LED) Pin No.
GA-686LX 3- 4 5 POWER (+) t J8: GN-SW On – Off for enter suspend Green Mode. t J9: Soft Power Switch On – Off for POWER ON or Suspend IN / OUT. On 4 sec. For POWER OFF before VGA Enable or CMOS setup select “ delay 4sec. ” For POWER OFF mode. t J10: Green LED OFF Normal mode ON Suspend mode t S1: CPU INT.
Hardware Installation 3- 5 EDO & 67~100 MHz for SDRAM. The DRAM memory system on mainboard consists of bank 0, 1, 2 & bank 3. Each bank consists of 3 PCS 168 pins DIMM module DRAM. Because the 168 pins DIMM module is 64 bits width, using 1 PCS which can match a 64 bits system.
GA-686LX 3- 6 the system can automatically boot OS. every time. Due to the life-time of Battery internal battery is 5 years, the user can change a new Battery to replace old one after it can not work. 3.7. SPEAKER CONNECTOR INSTALLATION There is always a speaker in AT system for sound purpose.
An important point after buying a device Gigabyte GA-686LX (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Gigabyte GA-686LX yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Gigabyte GA-686LX - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Gigabyte GA-686LX you will learn all the available features of the product, as well as information on its operation. The information that you get Gigabyte GA-686LX will certainly help you make a decision on the purchase.
If you already are a holder of Gigabyte GA-686LX, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Gigabyte GA-686LX.
However, one of the most important roles played by the user manual is to help in solving problems with Gigabyte GA-686LX. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Gigabyte GA-686LX along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
