
VEXTREC TECHNOLOGY, INC.

GMB-P56IPS (VER. 5.02)

Device Type       Mainboard
Processor         CX 6X86/CX 6X86L/AM K5/AM K6/Pentium/Pentium MMX
Processor Speed   75/90/100/110/120/133/150/166/200/233MHz
Chip Set          Intel 430TX
Maximum Onboard   128MB (EDO & SDRAM supported)
Memory
Cache             256/512KB
BIOS              Award/AMI
Dimensions        240mm x 220mm
I/O Options       32-bit PCI slots (4), floppy drive interface, IDE
                  interface, parallel port, PS/2 mouse port, serial ports
                  (2), IR connector, Green PC connector, USB connectors
                  (2)

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  Reset switch                J1       Floppy drive               J12
                                       interface

  Green PC connector          J2       Parallel port              J13

  Green PC LED                J3       Serial port 1              J14

  Speaker                     J4       Serial port 2              J15

  IDE interface LED           J5       USB connector 1            J16

  Power LED & keylock         J6       USB connector 2            J17

  IR connector                J9       PS/2 mouse interface       J18

  IDE interface 1            J10       PS/2 mouse port            J20

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

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

     CMOS memory normal operation            JP2              Open

      CMOS memory clear                       JP2             Closed

      Flash BIOS voltage select 5v            JP4           Pins 2 & 3
                                                              closed

      Flash BIOS voltage select 12v           JP4           Pins 1 & 2
                                                              closed

          SIMM MEMORY CONFIGURATION

     Size          Bank 0          Bank 1

      8MB        (2) 1MB x 32       None

     16MB        (2) 1MB x 32   (2) 1MB x 32

     16MB        (2) 2MB x 32       None

     24MB        (2) 2MB x 32   (2) 1MB x 32

     32MB        (2) 2MB x 32   (2) 2MB x 32

     32MB        (2) 4MB x 32       None

     40MB        (2) 4MB x 32   (2) 1MB x 32

     48MB        (2) 4MB x 32   (2) 2MB x 32

     64MB        (2) 4MB x 32   (2) 4MB x 32

     64MB        (2) 8MB x 32       None

     72MB        (2) 4MB x 32   (2) 1MB x 32

     80MB        (2) 4MB x 32   (2) 2MB x 32

     96MB        (2) 4MB x 32   (2) 4MB x 32

     128MB       (2) 8MB x 32   (2) 8MB x 32

          DIMM MEMORY CONFIGURATION

     Size          Bank 2          Bank 3

      8MB        (1) 1MB x 64       None

     16MB        (1) 1MB x 64   (1) 1MB x 64

     16MB        (1) 2MB x 64       None

     24MB        (1) 2MB x 64   (1) 1MB x 64

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

     32MB        (1) 4MB x 64       None

     40MB        (1) 4MB x 64   (1) 1MB x 64

     48MB        (1) 4MB x 64   (1) 2MB x 64

     64MB        (1) 4MB x 64   (1) 4MB x 64

     64MB        (1) 8MB x 64       None

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

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

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

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

                   DIMM VOLTAGE SELECTION

      Voltage                S4                  S5

         5v           Pins 1 & 2 closed   Pins 1 & 2 closed

        3.3v          Pins 2 & 3 closed   Pins 2 & 3 closed

                      CACHE CONFIGURATION

        Size                Bank 0                 TAG

       256KB             (2) 32K x 32       16K x 8 or 32K x 8

       512KB             (2) 64K x 32       16K x 8 or 32K x 8

                       CPU SPEED SELECTION (CX 6X86)

  Speed     Clock    Multiplier   SW1/4   SW1/5    SW1/6   SW1/7   SW1/8
           speed

  120MHz   50MHz        2x         On      Off      On      On      Off

  133MHz   55MHz        2x         On      Off     Off      On      Off

  150MHz   60MHz        2x         On      Off      On      Off     Off

  166MHz   66MHz        2x         On      Off     Off      Off     Off

  200MHz   75MHz        2x         On      Off     Off      Off      On

                      CPU SPEED SELECTION (CX 6X86L)

  Speed     Clock    Multiplier   SW1/4   SW1/5    SW1/6   SW1/7   SW1/8
           speed

  120MHz   60MHz        2x         On      Off      On      On      Off

  133MHz   66MHz        2x         On      Off     Off      On      Off

  150MHz   60MHz       2.5x        On      Off      On      Off     Off

  166MHz   66MHz       2.5x        On      Off     Off      Off     Off

  200MHz   75MHz        2x         On      Off     Off      Off      On

                        CPU SPEED SELECTION (AM K5)

  Speed     Clock    Multiplier   SW1/4   SW1/5    SW1/6   SW1/7   SW1/8
           speed

  75MHz    50MHz       1.5x        Off     Off      On      On      Off

  90MHz    60MHz       1.5x        Off     Off      On      Off     Off

  100MHz   66MHz       1.5x        Off     Off     Off      Off     Off

  120MHz   60MHz        2x         Off     Off      On      Off     Off

  133MHz   66MHz        2x         On      Off     Off      Off     Off

  150MHz   60MHz       2.5x        Off     Off     Off      Off     Off

  166MHz   66MHz       2.5x        On      On      Off      Off     Off

                        CPU SPEED SELECTION (AM K6)

  Speed     Clock    Multiplier   SW1/4   SW1/5    SW1/6   SW1/7   SW1/8
           speed

  166MHz   66MHz       2.5x        On      On      Off      Off     Off

  200MHz   66MHz        3x         Off     On      Off      Off     Off

  233MHz   66MHz       3.5x        Off     Off     Off      Off     Off

                        CPU SPEED SELECTION (INTEL)

  Speed     Clock    Multiplier   SW1/4   SW1/5    SW1/6   SW1/7   SW1/8
           speed

  75MHz    50MHz       1.5x        Off     Off      On      On      Off

  90MHz    60MHz       1.5x        Off     Off      On      Off     Off

  100MHz   66MHz       1.5x        Off     Off     Off      Off     Off

  120MHz   60MHz        2x         On      Off      On      Off     Off

  133MHz   66MHz        2x         On      Off     Off      Off     Off

  150MHz   60MHz       2.5x        On      On       On      Off     Off

  166MHz   66MHz       2.5x        On      On      Off      Off     Off

  200MHz   66MHz        3x         Off     On      Off      Off     Off

  233MHz   66MHz       3.5x        Off     Off     Off      Off     Off

                      CPU SPEED SELECTION (INTEL MMX)

  Speed     Clock    Multiplier   SW1/4   SW1/5    SW1/6   SW1/7   SW1/8
           speed

  166MHz   66MHz       2.5x        On      On      Off      Off     Off

  200MHz   66MHz        3x         Off     On      Off      Off     Off

  233MHz   66MHz       3.5x        Off     Off     Off      Off     Off

                      CPU VOLTAGE SELECTION (SINGLE)

  Voltage      S1         S2        S3       SW1/1      SW1/2     SW1/3

   3.3V      Closed     Closed    Closed      Off        Off        On

   3.5V      Closed     Closed    Closed      Off        Off       Off

                       CPU VOLTAGE SELECTION (DUAL)

  Voltage    V Core     S1       S2      S3      SW1/1    SW1/2    SW1/3

   3.3V       2.8V     Open     Open    Open      On       Off       On

   3.3V       2.9V     Open     Open    Open      Off      On        On

   3.3V       3.2V     Open     Open    Open      Off      Off       On

