
GIGA-BYTE TECHNOLOGY CO., LTD.

GA-6BXC (REV. 1.0)

Device Type       Mainboard
Processor         Pentium II
Processor Speed   233/266/300/333/350/366/400/450/500/550MHz
Chip Set          Intel 440BX
Video Chip Set    None
Maximum Onboard   768MB (SDRAM supported)
Memory
Maximum Video     None
Memory
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, SB-link connector, wake on
                  LAN connector

[Image]

                                CONNECTIONS

  Purpose                Location      Purpose                Location

  AGP slot                 AGP         USB connector 2           CN5

  ATX power                ATX         PS/2 mouse port           CN6
  connector

  Speaker                   C1         IDE interface 2           CN7

  Reset switch              C2         IDE interface 1           CN8

  Power LED                 C3         Floppy drive              CN9
                                       interface

  IDE interface LED         C4         Wake on LAN               JP7
                                       connector

  IR connector              C5         SB-link connector         JP8

  Green PC connector        C6         Green PC LED          JP9/pins 1 &
                                                                 12

  Soft off power            C7         Reset switch          JP9/pins 3 &
  supply                                                          4

  Green PC LED              C8         Speaker               JP9/pins 5 -
                                                                  8

  CPU fan power             C9         IDE interface LED     JP9/pins 9 &
                                                                 20

  Parallel port            CN1         Green PC connector   JP9/pins 11 &
                                                                 22

  Serial port 1            CN2         Soft off power       JP9/pins 15 &
                                       supply                    16

  Serial port 2            CN3         Power LED            JP9/pins 17 -
                                                                 19

  USB connector 1          CN4         32-bit PCI slots       PC1  PC4

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

      ATX power control select soft           J15              Open
      off

      ATX power control select soft           J15             Closed
      off/full on

      Keyboard power on enabled               JP1           Pins 1 & 2
                                                              closed

      Keyboard power on disabled              JP1           Pins 2 & 3
                                                              closed

                    DIMM CONFIGURATION

     Size          Bank 0         Bank 1        Bank 2

      8MB       (1) 1M x 64        None          None

     16MB       (1) 2M x 64        None          None

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

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

     24MB       (1) 1M x 64    (1) 1M x 64    (1) 1M x 64

     32MB       (1) 4M x 64        None          None

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

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

                  DIMM CONFIGURATION (CONT)

      Size          Bank 0          Bank 1          Bank 2

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

      40MB        (1) 2M x 64     (1) 2M x 64    (1) 1M x 64

      48MB        (1) 4M x 64     (1) 1M x 64    (1) 1M x 64

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

      48MB        (1) 2M x 64     (1) 2M x 64    (1) 2M x 64

      56MB        (1) 4M x 64     (1) 2M x 64    (1) 1M x 64

      64MB        (1) 8M x 64        None            None

      64MB        (1) 4M x 64     (1) 2M x 64    (1) 2M x 64

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

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

      72MB        (1) 4M x 64     (1) 4M x 64    (1) 1M x 64

      80MB        (1) 8M x 64     (1) 1M x 64    (1) 1M x 64

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

      80MB        (1) 4M x 64     (1) 4M x 64    (1) 2M x 64

      88MB        (1) 8M x 64     (1) 2M x 64    (1) 1M x 64

      96MB        (1) 8M x 64     (1) 2M x 64    (1) 2M x 64

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

      96MB        (1) 4M x 64     (1) 4M x 64    (1) 4M x 64

     104MB        (1) 8M x 64     (1) 4M x 64    (1) 1M x 64

     112MB        (1) 8M x 64     (1) 4M x 64    (1) 2M x 64

     128MB       (1) 16M x 64        None            None

     128MB        (1) 8M x 64     (1) 4M x 64    (1) 4M x 64

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

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

     136MB        (1) 8M x 64     (1) 8M x 64    (1) 1M x 64

     144MB       (1) 16M x 64     (1) 1M x 64    (1) 1M x 64

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

     144MB        (1) 8M x 64     (1) 8M x 64    (1) 2M x 64

     152MB       (1) 16M x 64     (1) 2M x 64    (1) 1M x 64

     160MB       (1) 16M x 64     (1) 2M x 64    (1) 2M x 64

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

     160MB        (1) 8M x 64     (1) 8M x 64    (1) 4M x 64

     168MB       (1) 16M x 64     (1) 4M x 64    (1) 1M x 64

     176MB       (1) 16M x 64     (1) 4M x 64    (1) 2M x 64

                  DIMM CONFIGURATION (CONT)

      Size          Bank 0          Bank 1          Bank 2

     192MB       (1) 16M x 64     (1) 4M x 64    (1) 4M x 64

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

     224MB       (1) 16M x 64     (1) 8M x 64    (1) 4M x 64

     256MB       (1) 32M x 64        None            None

     256MB       (1) 16M x 64     (1) 8M x 64    (1) 8M x 64

     264MB       (1) 32M x 64     (1) 1M x 64        None

     272MB       (1) 32M x 64     (1) 1M x 64    (1) 1M x 64

     272MB       (1) 32M x 64     (1) 2M x 64        None

     288MB       (1) 32M x 64     (1) 2M x 64    (1) 2M x 64

     288MB       (1) 32M x 64     (1) 4M x 64        None

     320MB       (1) 32M x 64     (1) 4M x 64    (1) 4M x 64

     320MB       (1) 32M x 64     (1) 8M x 64        None

     384MB       (1) 32M x 64     (1) 8M x 64    (1) 8M x 64

     384MB       (1) 16M x 64    (1) 16M x 64    (1) 16M x 64

     384MB       (1) 16M x 64    (1) 16M x 64    (1) 16M x 64

     512MB       (1) 32M x 64    (1) 16M x 64    (1) 16M x 64

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

     768MB       (1) 32M x 64    (1) 32M x 64    (1) 32M x 64

            Note: Board accepts SDRAM memory.

                     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

  233MHz     66MHz        3.5x         On       Off       Off       On

  266MHz     66MHz         4x          On       Off       Off       On

  300MHz     66MHz        4.5x         On       Off       Off       On

  333MHz     66MHz         5x          On       Off       Off       On

  366MHz     66MHz        5.5x         On       Off       Off       On

  300MHz     100MHz        3x          Off      Off       Off       Off

  350MHz     100MHz       3.5x         Off      Off       Off       Off

  400MHz     100MHz        4x          Off      Off       Off       Off

  450MHz     100MHz       4.5x         Off      Off       Off       Off

  500MHz     100MHz        5x          Off      Off       Off       Off

  550MHz     100MHz       5.5x         Off      Off       Off       Off

                        CPU SPEED SELECTION (CONT)

    CPU       Clock    Multiplier     SW2/1    SW2/2     SW2/3     SW2/4
   speed     speed

  233MHz     66MHz        3.5x         Off      Off       On        On

  266MHz     66MHz         4x          On        On       Off       On

  300MHz     66MHz        4.5x         Off       On       Off       On

  333MHz     66MHz         5x          On       Off       Off       On

  366MHz     66MHz        5.5x         Off      Off       Off       On

  300MHz     100MHz        3x          On       Off       On        On

  350MHz     100MHz       3.5x         Off      Off       On        On

  400MHz     100MHz        4x          On        On       Off       On

  450MHz     100MHz       4.5x         Off       On       Off       On

  500MHz     100MHz        5x          On       Off       Off       On

  550MHz     100MHz       5.5x         Off      Off       Off       On

                     MAINBOARD BUS SPEED SELECTION

               Speed                               JP10

  100MHz turbo & other frequencies           Pins 1 & 2 closed

               100MHz                        Pins 2 & 3 closed

