
GIGA-BYTE TECHNOLOGY CO., LTD.

GA-686LX

Device Type            Mainboard
Processor              Pentium II
Processor Speed        200/233/266/300/333/366MHz
Chip Set               Intel
Video Chip Set         None
Maximum Onboard Memory 1GB (EDO & SDRAM supported)
Maximum Video Memory   None
Cache                  256/512KB (located on Pentium II CPU)
BIOS                   Award
Dimensions             305mm x 244mm
I/O Options            32-bit PCI slots (4), 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
NPU Options            None

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  AGP slot                   AGP       CPU fan power               J2

  ATX power connector        ATX       Speaker                     J3

  Serial port 1              CN1       Reset switch                J4

  Serial port 2              CN2       Power LED                   J5

  Parallel port              CN3       IDE interface LED           J6

  USB connector 1            CN4       IR connector                J7

  USB connector 2            CN4A      Green PC connector          J8

  PS/2 mouse port            CN5       Soft off power supply       J9

  IDE interface 2            CN6       Green PC LED               J10

  IDE interface 1            CN7       32-bit PCI slots         PC1  PC4

  Floppy drive interface     CN8

  Note: The location of J10 is unidentified.

                        USER CONFIGURABLE SETTINGS

               Function                    Label           Position

     Factory configured - do not           JP2          Unidentified
      alter

                         DIMM CONFIGURATION 1GB

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

                        DIMM CONFIGURATION (CONT)

     Size          Bank 0         Bank 1         Bank 2         Bank 3

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

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

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

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

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

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

     152MB       (1) 16M x 64  (1) 1M x 64    (1) 1M x 64    (1) 1M x 64

     160MB       (1) 16M x 64  (1) 4M x 64        None           None

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

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

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

     224MB       (1) 16M x 64  (1) 4M x 64    (1) 4M x 64    (1) 4M x 64

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

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

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

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

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

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

     304MB       (1) 32M x 64  (1) 2M x 64    (1) 2M x 64    (1) 2M x 64

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

     320MB       (1) 16M x 64  (1) 8M x 64    (1) 8M x 64    (1) 8M x 64

     352MB       (1) 32M x 64  (1) 4M x 64    (1) 4M x 64    (1) 4M x 64

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

     384MB       (1) 32M x 64  (1) 16M x 64       None           None

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

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

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

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

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

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

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

                     CACHE CONFIGURATION

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

                            CPU SPEED SELECTION

    CPU        Clock     Multiplier     S1/1     S1/2     S1/3      S1/4
   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

