
GIGA-BYTE TECHNOLOGY CO., LTD.

GA-686LX2 (VER. 1.0)

Device Type            Mainboard
Processor              Pentium II
Processor Speed        200/233/266/300/333/366MHz
Chip Set               Intel 440LX
Maximum Onboard Memory 1GB (EDO & SDRAM supported)
Cache                  256/512KB (located on Pentium II CPU)
BIOS                   Award
Dimensions             305mm x 244mm
I/O Options            32-bit PCI slots (5), floppy drive interface, green
                       PC connector, IDE interfaces (2), parallel port,
                       PS/2 mouse port, serial ports (2), IR connector, USB
                       connectors (2), ATX power connector, AGP slot, wake
                       on LAN connector

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  AGP slot                   AGP       IDE interface LED           J7

  ATX power connector        ATX       Reset switch               J10

  USB connector 1            CN1       Speaker                    J11

  IDE interface 2            CN2       Serial port 2              JP2

  IDE interface 1            CN3       Serial port 1              JP3

  USB connector 2            CN4       Soft off power supply      JP4

  CPU fan power               J1       Green PC connector         JP5

  CPU fan power               J2       Power LED                  JP6

  PS/2 mouse port             J3       ACPI LED                   JP7

  Floppy drive interface      J4       SB-link connector          JP8

  Parallel port               J5       Wake on LAN connector      JP9

  IR connector                J6       32-bit PCI slots         PC1 - PC5

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

      ATX power supply select soft off        J12              Open

      ATX power supply select full on         J12             Closed

     Keyboard power on disabled              JP1           Pins 2 & 3
                                                              closed

      Keyboard power on enabled               JP1           Pins 1 & 2
                                                              closed

                            DIMM CONFIGURATION

      Size          Bank 0        Bank 1         Bank 2         Bank 3

      8MB         (1) 1M x 64      None           None           None

      16MB        (1) 2M x 64      None           None           None

      16MB        (1) 1M x 64   (1) 1M x 64       None           None

      24MB        (1) 2M x 64   (1) 1M x 64       None           None

      24MB        (1) 1M x 64   (1) 1M x 64    (1) 1M x 64       None

      32MB        (1) 4M x 64      None           None           None

      32MB        (1) 2M x 64   (1) 2M x 64       None           None

      32MB        (1) 1M x 64   (1) 1M x 64    (1) 1M x 64   (1) 1M x 64

      40MB        (1) 4M x 64   (1) 1M x 64       None           None

      48MB        (1) 4M x 64   (1) 2M x 64       None           None

      48MB        (1) 2M x 64   (1) 2M x 64    (1) 2M x 64       None

      64MB        (1) 2M x 64   (1) 2M x 64    (1) 2M x 64   (1) 2M x 64

      64MB        (1) 8M x 64      None           None           None

      64MB        (1) 4M x 64   (1) 4M x 64       None           None

      72MB        (1) 8M x 64   (1) 1M x 64       None           None

      80MB        (1) 8M x 64   (1) 2M x 64       None           None

      96MB        (1) 8M x 64   (1) 4M x 64       None           None

      96MB        (1) 4M x 64   (1) 4M x 64    (1) 4M x 64       None

     128MB         (1) 16M x       None           None           None
                      64

     128MB        (1) 8M x 64   (1) 8M x 64       None           None

                        DIMM CONFIGURATION (CON'T)

      Size          Bank 0        Bank 1         Bank 2         Bank 3

     128MB        (1) 4M x 64   (1) 4M x 64    (1) 4M x 64   (1) 4M x 64

     136MB         (1) 16M x    (1) 1M x 64       None           None
                      64

     144MB         (1) 16M x    (1) 2M x 64       None           None
                      64

     176MB         (1) 16M x    (1) 2M x 64    (1) 2M x 64   (1) 2M x 64
                      64

     192MB         (1) 16M x    (1) 8M x 64       None           None
                      64

     192MB        (1) 8M x 64   (1) 8M x 64    (1) 8M x 64       None

     256MB         (1) 32M x       None           None           None
                      64

     256MB         (1) 16M x     (1) 16M x        None           None
                      64            64

     256MB        (1) 8M x 64   (1) 8M x 64    (1) 8M x 64   (1) 8M x 64

     272MB         (1) 16M x     (1) 16M x     (1) 1M x 64   (1) 1M x 64
                      64            64

     280MB         (1) 32M x    (1) 1M x 64    (1) 1M x 64   (1) 1M x 64
                      64

     288MB         (1) 16M x     (1) 16M x     (1) 2M x 64   (1) 2M x 64
                      64            64

     320MB         (1) 16M x     (1) 16M x     (1) 4M x 64   (1) 4M x 64
                      64            64

     384MB         (1) 16M x     (1) 16M x      (1) 16M x        None
                      64            64             64

     448MB         (1) 32M x    (1) 8M x 64    (1) 8M x 64   (1) 8M x 64
                      64

     512MB         (1) 32M x     (1) 32M x        None           None
                      64            64

     512MB         (1) 16M x     (1) 16M x      (1) 16M x    (1) 16M x 64
                      64            64             64

     640MB         (1) 32M x     (1) 16M x      (1) 16M x    (1) 16M x 64
                      64            64             64

     768MB         (1) 32M x     (1) 32M x      (1) 32M x        None
                      64            64             64

     1024MB        (1) 32M x     (1) 32M x      (1) 32M x    (1) 32M x 64
                      64            64             64

  Note: Board accepts EDO & SDRAM memory. Maximum SDRAM is 512MB. Maximum
  EDO is 1GB.

                     CACHE CONFIGURATION

  Note: 256KB/512KB cache is located on the Pentium II CPU.

                            CPU SPEED SELECTION

    CPU       Clock    Multiplier     SW1/1    SW1/2     SW1/3     SW1/4
   speed     speed

  200MHz     66MHz         3x          Off       On       Off       Off

  233MHz     66MHz        3.5x         On        On       Off       Off

  266MHz     66MHz         4x          Off      Off       On        Off

  300MHz     66MHz        4.5x         On       Off       On        Off

  333MHz     66MHz         5x          Off       On       On        Off

  366MHz     66MHz        5.5x         On        On       On        Off

