
GEMLIGHT COMPUTER, LTD.

GMB-P57IAX (VER. 1.10)

Processor          CX 6X86/CX 6X86L/CX 6X86MX/AM K5/AM K6/Pentium
Processor Speed    90/100/120/133/150/166/200/233/266MHz
Chip Set           Intel
Video Chip Set     None
Maximum Onboard    256MB (EDO supported)
Memory
Maximum Video      None
Memory
Cache              256/512KB
BIOS               AMI
Dimensions         304mm x 210mm
I/O Options        32-bit PCI slots (4), floppy drive interface, IDE
                   interfaces (2), parallel port, PS/2 mouse port, serial
                   ports (2), IR connector, USB connectors (2), ATX power
                   connector
NPU Options        None

[Image]

                                CONNECTIONS

  Purpose                Location      Purpose                Location

  ATX power                ATX         Reset switch          J1/pins 9 &
  connector                                                      10

  Parallel port            CN1         Power LED &           J1/pins 11 -
                                       keylock                   15

  Serial port 2            CN2         Speaker               J1/pins 17 -
                                                                 20

  Serial port 1            CN3         IDE interface 1           J6

  USB connector 1          CN4         IDE interface 2           J7

  USB connector 2          CN5         Floppy drive              J9
                                       interface

  PS/2 mouse port          CN6         IR connector              JP4

  IDE interface LED    J1/pins 1 & 2   32-bit PCI slots       PCI  PC4

  Power button         J1/pins 5 & 6

                        USER CONFIGURABLE SETTINGS

                Function                     Label          Position

      Flash BIOS voltage select 12v           JP3           Pins 1 & 2
                                                             closed

      Flash BIOS voltage select 5v            JP3           Pins 2 & 3
                                                             closed

      Ring in select COM1                    JP11           Pins 1 & 2
                                                             closed

      Ring in select COM2                    JP11           Pins 2 & 3
                                                             closed

              DRAM CONFIGURATION

      Size          Bank 0          Bank 1

      8MB         (2) 1M x 32        None

      16MB        (2) 2M x 32        None

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

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

      32MB        (2) 4M x 32        None

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

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

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

      64MB        (2) 8M x 32        None

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

      72MB        (2) 8M x 32    (2) 1M x 32

      80MB        (2) 8M x 32    (2) 2M x 32

      96MB        (2) 8M x 32    (2) 4M x 32

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

     128MB        (2) 16M x 32       None

     136MB        (2) 16M x 32   (2) 1M x 32

     144MB        (2) 16M x 32   (2) 2M x 32

     160MB        (2) 16M x 32   (2) 4M x 32

     192MB        (2) 16M x 32   (2) 8M x 32

     256MB        (2) 16M x 32   (2) 16M x 32

  Note: Board accepts EDO memory.

             DIMM CONFIGURATION

     Size          Bank 0        Bank 1

      8MB        (1) 1M x 64      None

     16MB        (1) 2M x 64      None

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

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

     32MB        (1) 4M x 64      None

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

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

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

     64MB        (1) 8M x 64      None

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

     72MB        (1) 8M x 64   (1) 1M x 64

     80MB        (1) 8M x 64   (1) 2M x 64

     96MB        (1) 8M x 64   (1) 4M x 64

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

              CACHE CONFIGURATION

      Size          Bank 0           TAG

     256KB        (2) 32K x 32   Unidentified

     512KB        (2) 64K x 32   Unidentified

                       CPU SPEED SELECTION (CX 6X86)

    CPU       Clock    Multiplier     SW1/1    SW1/2     SW1/3     SW1/4
   speed     speed

  133MHz     55MHz         2x          Off       On       On        Off

  150MHz     60MHz         2x          Off       On       On        Off

  166MHz     66MHz         2x          Off       On       On        Off

                   CPU SPEED SELECTION (CX 6X86, CONT)

    CPU       Clock    Multiplier     SW1/5    SW1/6     SW1/7     SW1/8
   speed     speed

  133MHz     55MHz         2x          Off       On       On        Off

  150MHz     60MHz         2x          Off       On       Off       Off

  166MHz     66MHz         2x          Off      Off       Off       Off

                     CPU SPEED SELECTION (CX 6X86L/MX)

    CPU       Clock    Multiplier     SW1/1    SW1/2     SW1/3     SW1/4
   speed     speed

  166MHz     66MHz         2x          Off       On       On        Off

  200MHz     75MHz         2x          Off       On       On        Off

                 CPU SPEED SELECTION (CX 6X86L/MX, CONT)

    CPU       Clock    Multiplier     SW1/5    SW1/6     SW1/7     SW1/8
   speed     speed

  166MHz     66MHz         2x          Off      Off       Off       Off

  200MHz     75MHz         2x          Off      Off       On        Off

                        CPU SPEED SELECTION (AM K5)

    CPU       Clock    Multiplier     SW1/1    SW1/2     SW1/3     SW1/4
   speed     speed

   90MHz     60MHz        1.5x         Off       On       Off       Off

  100MHz     66MHz        1.5x         Off       On       Off       Off

  120MHz     60MHz        1.5x         Off       On       Off       Off

  133MHz     66MHz         2x          Off       On       On        Off

  150MHz     60MHz        1.5x         Off       On       Off       Off

  166MHz     66MHz        2.5x         Off       On       On        On

                    CPU SPEED SELECTION (AM K5, CONT)

    CPU       Clock    Multiplier     SW1/5    SW1/6     SW1/7     SW1/8
   speed     speed

   90MHz     60MHz        1.5x         Off       On       Off       Off

  100MHz     66MHz        1.5x         Off      Off       Off       Off

  120MHz     60MHz        1.5x         Off       On       Off       Off

  133MHz     66MHz         2x          Off      Off       Off       Off

  150MHz     60MHz        1.5x         Off      Off       Off       Off

  166MHz     66MHz        2.5x         Off      Off       Off       Off

                        CPU SPEED SELECTION (AM K6)

    CPU       Clock    Multiplier     SW1/1    SW1/2     SW1/3     SW1/4
   speed     speed

  166MHz     66MHz        2.5x         Off       On       On        On

  200MHz     66MHz         3x          Off       On       Off       On

  233MHz     66MHz        3.5x         Off       On       Off       Off

                    CPU SPEED SELECTION (AM K6, CONT)

    CPU       Clock    Multiplier     SW1/5    SW1/6     SW1/7     SW1/8
   speed     speed

  166MHz     66MHz        2.5x         Off      Off       Off       Off

  200MHz     66MHz         3x          Off      Off       Off       Off

  233MHz     66MHz        3.5x         Off      Off       Off       Off

                        CPU SPEED SELECTION (INTEL)

    CPU       Clock    Multiplier     SW1/1    SW1/2     SW1/3     SW1/4
   speed     speed

   90MHz     60MHz        1.5x         Off       On       Off       Off

  100MHz     66MHz        1.5x         Off       On       Off       Off

  120MHz     60MHz         2x          Off       On       On        Off

  133MHz     66MHz         2x          Off       On       On        Off

  150MHz     60MHz        2.5x         Off       On       On        On

  166MHz     66MHz        2.5x         Off       On       On        On

  200MHz     66MHz         3x          Off       On       Off       On

  233MHz     66MHz        3.5x         Off       On       Off       Off

                    CPU SPEED SELECTION (INTEL, CONT)

    CPU       Clock    Multiplier     SW1/5    SW1/6     SW1/7     SW1/8
   speed     speed

   90MHz     60MHz        1.5x         Off       On       Off       Off

  100MHz     66MHz        1.5x         Off      Off       Off       Off

  120MHz     60MHz         2x          Off       On       Off       Off

  133MHz     66MHz         2x          Off      Off       Off       Off

  150MHz     60MHz        2.5x         Off       On       Off       Off

  166MHz     66MHz        2.5x         Off      Off       Off       Off

  200MHz     66MHz         3x          Off      Off       Off       Off

  233MHz     66MHz        3.5x         Off      Off       Off       Off

                      CPU VOLTAGE SELECTION (SINGLE)

   Voltage        JP9       JP10         JP12        JP13        JP14

     3.3v        1 & 2     1 & 2, 3     Closed       Open       Closed
                             & 4

     3.5v        1 & 2,    1 & 2, 3     Closed       Open       Closed
                 3 & 4       & 4

  Note: Pins designated should be in the closed position.

                       CPU VOLTAGE SELECTION (DUAL)

  Voltage     V core      JP9      JP10      JP12      JP13       JP14

    3.3v       2.8v      Open      Open      Open      1 & 2,     Open
                                                       3 & 4

    3.3v       2.9v      1 & 2     Open      Open      1 & 2,     Open
                                                       3 & 4

    3.3v       3.2v      1 & 2     Open     Closed     1 & 2,    Closed
                                                       3 & 4

  Note: Pins designated should be in the closed position.

