
VEXTREC TECHNOLOGY, INC.

GMB-P56VPS (VER. 1.10)

Processor           CX 6X86/AM K5/Pentium/Pentium MMX
Processor Speed     75/90/100/120/133/150/166/180/200MHz
Chip Set            VIA
Video Chip Set      None
Maximum Onboard     256MB (EDO supported)
Memory
Maximum Video       None
Memory
Cache               256/512KB
BIOS                AMI/Award
Dimensions          270mm x 220mm
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 connectors (2),
                    USB connectors (2)
NPU Options         None

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  PS/2 mouse port            CN1       IR connector               J14

  Reset switch                J1       IR connector (fast)        J15

  Turbo switch                J2       Parallel port              J16

  Turbo LED                   J3       Serial port 2              J17

  IDE interface LED           J4       Serial port 1              J18

  Speaker                     J5       PS/2 mouse interface       J19

  Power LED & keylock         J6       USB connector 2            J21

  Floppy drive interface     J10       USB connector 1            J22

  IDE interface 2            J11       32-bit PCI slots         PC1 - PC4

  IDE interface 1            J12

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

      Flash BIOS voltage select 12v           JP2           Pins 2 & 3
                                                              closed

      Flash BIOS voltage select 5v            JP2           Pins 1 & 2
                                                              closed

     CMOS memory normal operation            JP6           Pins 1 & 2
                                                              closed

      CMOS memory clear                       JP6           Pins 2 & 3
                                                              closed

     Boost mode disabled                      S5              Open

      Boost mode disabled                      S5             Closed

                      DRAM CONFIGURATION

        Size                Bank 0               Bank 1

         8MB             (2) 1M x 36              None

        16MB             (2) 2M x 36              None

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

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

        32MB             (2) 4M x 36              None

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

        40MB             (2) 1M x 36          (2) 4M x 36

        48MB             (2) 4M x 36          (2) 2M x 36

        64MB             (2) 8M x 36              None

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

        72MB             (2) 8M x 36          (2) 1M x 36

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

        96MB             (2) 8M x 36          (2) 4M x 36

        128MB            (2) 16M x 36             None

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

        136MB            (2) 16M x 36         (2) 1M x 36

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

        160MB            (2) 16M x 36         (2) 4M x 36

        192MB            (2) 16M x 36         (2) 8M x 36

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

  Note: Board accepts EDO memory. Banks are interchangeable.

                            CACHE CONFIGURATION

       Size             Bank 0           Bank 1               TAG

       256KB         (2) 32K x 32         None        (1) 8K/16K/32K x 8

       512KB         (2) 32K x 32     (2) 32K x 32      (1) 16K/32K x 8

  Note: The location of banks 0 & 1 are unidentified.

                       CPU SPEED SELECTION (CX 6X86)

    CPU     Clock    Multiplier    JP7   JP8     S3       S4        S5
  speed     speed

  120MHz    50MHz        2x        1 &   2 &    Closed   Closed    Open
                                   2      3

  133MHz    55MHz        2x        1 &   2 &    Open     Open      Open
                                   2      3

  150MHz    60MHz        2x        1 &   2 &    Closed   Open      Open
                                   2      3

  166MHz    66MHz        3x        1 &   2 &    Open     Closed    Open
                                   2      3

  200MHz    66MHz        3x        1 &   2 &    Open     Open     Closed
                                   2      3

  Note: Pins designated should be in the closed position.

                        CPU SPEED SELECTION (AM K5)

    CPU      Clock   Multiplier     JP7   JP8     S3        S4       S5
  speed     speed

  75MHz     50MHz       1.5x        1 &   1 &    Closed    Closed   Open
                                    2      2

  90MHz     60MHz       1.5x        1 &   1 &    Closed    Open     Open
                                    2      2

  100MHz    66MHz       1.5x        1 &   1 &    Open      Closed   Open
                                    2      2

  120MHz    60MHz       1.5x        1 &   1 &    Closed    Open     Open
                                    2      2

  133MHz    66MHz        2x         1 &   1 &    Open      Closed   Open
                                    2      2

  150MHz    66MHz       1.5x        1 &   2 &    Closed    Open     Open
                                    2      3

  166MHz    66MHz        2x         1 &   2 &    Open      Closed   Open
                                    2      3

  Note: Pins designated should be in the closed position.

                        CPU SPEED SELECTION (INTEL)

    CPU      Clock   Multiplier     JP7   JP8     S3        S4       S5
  speed     speed

  75MHz     50MHz       1.5x        1 &   1 &    Closed    Closed   Open
                                    2      2

  90MHz     60MHz       1.5x        1 &   1 &    Closed    Open     Open
                                    2      2

  100MHz    66MHz       1.5x        1 &   1 &    Open      Closed   Open
                                    2      2

  120MHz    60MHz        2x         1 &   2 &    Closed    Open     Open
                                    2      3

  133MHz    66MHz        2x         1 &   2 &    Open      Closed   Open
                                    2      3

  150MHz    60MHz       2.5x        2 &   2 &    Closed    Open     Open
                                    3      3

  166MHz    66MHz       2.5x        2 &   2 &    Open      Closed   Open
                                    3      3

  180MHz    60MHz        3x         2 &   1 &    Closed    Open     Open
                                    3      2

  200MHz    66MHz        3x         2 &   1 &    Open      Closed   Open
                                    3      2

  Note: Pins designated should be in the closed position.

                      CPU SPEED SELECTION (INTEL MMX)

    CPU      Clock    Multiplier    JP7    JP8     S3       S4       S5
  speed      speed

  166MHz     66MHz       2.5x        2 &    2 &   Open    Closed    Open
                                     3      3

  200MHz     66MHz        3x         2 &    1 &   Open    Closed    Open
                                     3      2

  Note: Pins designated should be in the closed position.

               CPU VOLTAGE SELECTION (SINGLE)

      Voltage          JP1        S0        S1        S2

        3.4v          Closed    Closed    Closed    Closed

        3.5v           Open     Closed    Closed    Closed

              CPU VOLTAGE SELECTION (DUAL)

  V I/O     V core    JP1       S0        S1       S2

   3.4v     2.9v     Closed    Open      Open     Open

