
GEMLIGHT COMPUTER, LTD.

GMB-P56IPS (VER. 1.06)

Processor            CX M1/AM K5/Pentium
Processor Speed      75/90/100/120/133/150/166/200MHz
Chip Set             Intel
Video Chip Set       None
Maximum Onboard      128MB (EDO supported)
Memory
Maximum Video Memory None
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), cache slot, IR
                     connector, USB connectors (2)
NPU Options          None

[Image]

                                CONNECTIONS

  Purpose                 Location     Purpose                  Location

  Reset switch               J1        IR connector               J12

  Green PC connector         J2        Parallel port              J13

  Green PC LED               J3        Serial port 2              J14

  Speaker                    J4        Serial port 1              J15

  IDE interface LED          J5        USB connector 1            J16
                                       (optional)

  Power LED & keylock        J6        USB connector 2            J17
                                       (optional)

  IDE interface 1            J9        PS/2 mouse interface       J18

  IDE interface 2            J10       Cache slot                 SL1

  Floppy drive               J11       32-bit PCI slots        PC1 - PC4
  interface

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

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

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

     CMOS memory normal operation            JP5              Open

      CMOS memory clear                       JP5             Closed

                  DIMM/DRAM CONFIGURATION

     Size          Bank 0         Bank 1        Bank 2

      8MB           None           None       (1) 1M x 64

      8MB       (2) 1M x 32        None          None

     16MB       (2) 1M x 32    (2) 1M x 32       None

     16MB       (2) 2M x 32        None          None

     16MB           None           None       (1) 2M x 64

     24MB       (2) 2M x 32    (2) 1M x 32       None

     24MB           None       (2) 1M x 32    (1) 2M x 64

     32MB           None       (2) 4M x 32       None

     32MB           None           None       (1) 4M x 64

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

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

     40MB       (2) 4M x 32    (2) 1M x 32       None

     40MB           None       (2) 1M x 32    (1) 4M x 64

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

     48MB       (2) 2M x 32    (2) 4M x 32       None

     48MB           None       (2) 2M x 32    (1) 4M x 64

     48MB           None       (2) 4M x 32    (1) 2M x 64

     64MB       (2) 8M x 32        None          None

     64MB           None           None       (1) 8M x 64

     64MB           None       (2) 4M x 32    (1) 4M x 64

     72MB       (2) 8M x 32    (2) 1M x 32       None

     72MB           None       (2) 1M x 32    (1) 8M x 64

     72MB           None       (2) 8M x 32    (1) 1M x 64

              DIMM/DRAM CONFIGURATION (CONT)

     Size          Bank 0         Bank 1        Bank 2

     80MB       (2) 8M x 32    (2) 2M x 32       None

     80MB           None       (2) 8M x 32    (1) 2M x 64

     80MB           None       (2) 2M x 32    (1) 8M x 64

     96MB       (2) 8M x 32    (2) 4M x 32       None

     96MB           None       (2) 8M x 32    (1) 4M x 64

     96MB           None       (2) 4M x 32    (1) 8M x 64

     128MB      (2) 4M x 32    (2) 4M x 32       None

  Note: Board accepts EDO memory.

                  DRAM VOLTAGE CONFIGURATION

       Voltage                S7                   S8

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

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

                            CACHE CONFIGURATION

      Size          Bank 0              SL1                   TAG

     256KB        (2) 32K x 32     Not installed      (1) 8K/16K/32K x 8

     512KB        (2) 32K x 32      256KB module      (1) 8K/16K/32K x 8
                                     installed

                        CPU SPEED SELECTION (CYRIX)

    CPU     Clock    Multiplier    JP6   JP7     S1       S2        S3
  speed     speed

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

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

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

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

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

  Note: Pins designated should be in the closed position.

                         CPU SPEED SELECTION (AMD)

    CPU      Clock   Multiplier     JP6   JP7     S1        S2       S3
  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      Open     Open
                                    2      2

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

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

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

  Note: Pins designated should be in the closed position.

                        CPU SPEED SELECTION (INTEL)

    CPU      Clock   Multiplier     JP6   JP7     S1        S2       S3
  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      Open     Open
                                    2      2

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

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

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

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

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

  Note: Pins designated should be in the closed position.

                           CPU VOLTAGE SELECTION

    Voltage      V core       JP1          S4          S5          S6

      3.4v         N/A       Closed      Closed      Closed      Closed
   (single)

  3.4v (dual)     2.8v       Closed       Open        Open        Open

      3.5v         N/A        Open       Closed      Closed      Closed
   (single)

