
GIGA-BYTE TECHNOLOGY CO., LTD.

GA-686FX

Processor                Pentium Pro
Processor Speed          150/166/180/200MHz
Chip Set                 Unidentified
Video Chip Set           None
Maximum Onboard Memory   512MB
Maximum Video Memory     None
Cache                    256/512KB (located on Pentium Pro CPU)
BIOS                     Award
Dimensions               330mm x 218mm
I/O Options              32-bit PCI slots (4), floppy drive interface,
                         green PC connector, IDE interfaces (2), parallel
                         port, PS/2 mouse interface, serial ports (2), IR
                         connector, USB connectors (2), ATX power
                         connector
NPU Options              None

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  ATX power connector        ATX       Speaker                     J5

  Parallel port              CN1       PS/2 mouse interface       JP2

  Serial port 2              CN2       Chassis fan power          JP3

  Serial port 1              CN3       USB connector              JP6

  IDE interface 1            CN4       USB connector              JP7

  Floppy drive interface     CN5       Soft off power supply      JP10

  IDE interface 2            CN6       Turbo switch               JP11

  IDE interface LED           J1       Turbo LED                  JP12

  Green PC connector          J2       Power LED & keylock        JP13

  Green PC LED                J3       32-bit PCI slots         PC1  PC4

  Reset switch                J4

                        USER CONFIGURABLE SETTINGS

               Function                    Label           Position

     Factory configured - do not           JP4          Unidentified
      alter

                    DRAM CONFIGURATION

     Size          Bank 0         Bank 1        Bank 2

      8MB       (2) 1M x 36        None          None

     16MB       (2) 1M x 36    (2) 1M x 36       None

     16MB       (2) 2M x 36        None          None

     24MB       (2) 1M x 36    (2) 1M x 36    (2) 1M x 36

     24MB       (2) 2M x 36    (2) 1M x 36       None

     32MB       (2) 1M x 36    (2) 1M x 36    (2) 2M x 36

     32MB       (2) 2M x 36    (2) 2M x 36       None

     32MB       (2) 4M x 36        None          None

     40MB       (2) 2M x 36    (2) 2M x 36    (2) 1M x 36

     40MB       (2) 4M x 36    (2) 1M x 36       None

     48MB       (2) 2M x 36    (2) 2M x 36    (2) 2M x 36

     48MB       (2) 4M x 36    (2) 2M x 36       None

     56MB       (2) 4M x 36    (2) 2M x 36    (2) 1M x 36

     64MB       (2) 4M x 36    (2) 2M x 36    (2) 2M x 36

     64MB       (2) 4M x 36    (2) 4M x 36       None

     64MB       (2) 8M x 36        None          None

     72MB       (2) 8M x 36    (2) 1M x 36       None

     72MB       (2) 4M x 36    (2) 4M x 36    (2) 1M x 36

     80MB       (2) 8M x 36    (2) 2M x 36       None

     80MB       (2) 4M x 36    (2) 4M x 36    (2) 2M x 36

     80MB       (2) 8M x 36    (2) 1M x 36    (2) 1M x 36

     88MB       (2) 8M x 36    (2) 2M x 36    (2) 1M x 36

     96MB       (2) 8M x 36    (2) 2M x 36    (2) 2M x 36

                  DRAM CONFIGURATION (CONT)

      Size          Bank 0          Bank 1          Bank 2

      96MB        (2) 8M x 36     (2) 4M x 36        None

      96MB        (2) 4M x 36     (2) 4M x 36    (2) 4M x 36

     104MB        (2) 8M x 36     (2) 4M x 36    (2) 1M x 36

     112MB        (2) 8M x 36     (2) 4M x 36    (2) 2M x 36

     128MB       (2) 16M x 36        None            None

     128MB        (2) 8M x 36     (2) 8M x 36        None

     128MB        (2) 8M x 36     (2) 4M x 36    (2) 4M x 36

     136MB       (2) 16M x 36     (2) 1M x 36        None

     136MB        (2) 8M x 36     (2) 8M x 36    (2) 1M x 36

     144MB       (2) 16M x 36     (2) 1M x 36    (2) 1M x 36

     144MB       (2) 16M x 36     (2) 2M x 36        None

     144MB        (2) 8M x 36     (2) 8M x 36    (2) 2M x 36

     152MB       (2) 16M x 36     (2) 2M x 36    (2) 1M x 36

     160MB       (2) 16M x 36     (2) 2M x 36    (2) 2M x 36

     160MB       (2) 16M x 36     (2) 4M x 36        None

     168MB       (2) 16M x 36     (2) 4M x 36    (2) 1M x 36

     176MB       (2) 16M x 36     (2) 4M x 36    (2) 2M x 36

     192MB       (2) 16M x 36     (2) 4M x 36    (2) 4M x 36

     192MB       (2) 16M x 36     (2) 8M x 36        None

     200MB       (2) 16M x 36     (2) 8M x 36    (2) 1M x 36

     208MB       (2) 16M x 36     (2) 8M x 36    (2) 2M x 36

     224MB       (2) 16M x 36     (2) 8M x 36    (2) 4M x 36

     256MB       (2) 16M x 36     (2) 8M x 36    (2) 8M x 36

     256MB       (2) 16M x 36    (2) 16M x 36        None

     256MB       (2) 32M x 36        None            None

     264MB       (2) 16M x 36    (2) 16M x 36    (2) 1M x 36

     264MB       (2) 32M x 36     (2) 1M x 36        None

     272MB       (2) 16M x 36    (2) 16M x 36    (2) 2M x 36

     272MB       (2) 32M x 36     (2) 2M x 36        None

     280MB       (2) 32M x 36     (2) 2M x 36    (2) 1M x 36

     288MB       (2) 32M x 36     (2) 2M x 36    (2) 2M x 36

     288MB       (2) 32M x 36     (2) 4M x 36        None

     296MB       (2) 32M x 36     (2) 4M x 36    (2) 1M x 36

     304MB       (2) 32M x 36     (2) 4M x 36    (2) 2M x 36

     320MB       (2) 32M x 36     (2) 4M x 36    (2) 4M x 36

     320MB       (2) 32M x 36     (2) 8M x 36        None

     328MB       (2) 32M x 36     (2) 8M x 36    (2) 1M x 36

     336MB       (2) 32M x 36     (2) 8M x 36    (2) 2M x 36

     352MB       (2) 32M x 36     (2) 8M x 36    (2) 4M x 36

     384MB       (2) 32M x 36     (2) 8M x 36    (2) 8M x 36

                  DRAM CONFIGURATION (CONT)

      Size          Bank 0          Bank 1          Bank 2

     384MB       (2) 32M x 36    (2) 16M x 36        None

     392MB       (2) 32M x 36    (2) 16M x 36    (2) 1M x 36

     400MB       (2) 32M x 36    (2) 16M x 36    (2) 2M x 36

     416MB       (2) 32M x 36    (2) 16M x 36    (2) 4M x 36

     448MB       (2) 32M x 36    (2) 16M x 36    (2) 8M x 36

     512MB       (2) 32M x 36    (2) 16M x 36    (2) 16M x 36

     512MB       (2) 32M x 36    (2) 32M x 36        None

                      CACHE CONFIGURATION

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

                      CPU SPEED SELECTION

  CPU speed      S1/1         S1/2        S1/3         S1/4

   150MHz         On           On          Off          Off

   166MHz        Off           On          Off          Off

   180MHz         On          Off          On           Off

   200MHz        Off          Off          On           Off

