
GEMLIGHT COMPUTER LTD.

GMB-P57SAX (VER. 1.20)

Device Type        Mainboard
Processor          CX 6X86/IBM 6X86/CX 6X86L/IBM 6X86L/CX 6X86MX/IBM
                   6X86MX/AM K5/AM K6/Pentium/Pentium MMX
Processor Speed    90/100/120/133/150/166/200/233/266MHz
Chip Set           SIS 5598
Maximum Onboard    384MB (EDO & SDRAM supported)
Memory
Cache              512KB
BIOS               Award
I/O Options        32-bit PCI slots (4), CD-ROM interface (2), floppy drive
                   interface, game port, IDE interfaces (2), parallel port,
                   PS/2 mouse port, serial ports (2), VGA feature
                   connector, VGA port, IR connector, USB connectors (2),
                   wavetable connector, ATX power connector, microphone in,
                   line in, line out

[Image]

                                CONNECTIONS

  Purpose            Location     Purpose                      Location

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

  PS/2 mouse port      CN1        Power LED & keylock           J1/pins
                                                                 11-15

  USB connector 1      CN2        Speaker                       J1/pins
                                                                 16-20

  USB connector 2      CN3        Wavetable connector             J2

  Serial port 1        CN4        Audio in - CD-ROM               J3
                                  (Panasonic/Mitsumi)

  VGA port             CN5        Audio in - CD-ROM (Sony)        J4

  Parallel port        CN6        Floppy drive interface          J5

  External             CN7        IDE interface 1                 J6
  speaker

  Line in              CN8        IDE interface 2                 J7

  Microphone in        CN9        IR connector                    J8

  Game port            CN10       VGA feature connector           J10

  IDE interface     J1/pins 1 &   Serial port 2                   J11
  LED                   2

  Suspend LED       J1/pins 3 &   Chassis fan power               J17
                        4

  Suspend switch    J1/pins 5 &   Internal modem ring-in         JP11
                        6         connector

  Power switch      J1/pins 7 &   32-bit PCI slots             PC1 - PC4
                        8

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

      Flash BIOS voltage select 12v           JP1           Pins 1 & 2
                                                              closed

      Flash BIOS voltage select 5v            JP1           Pins 2 & 3
                                                              closed

      Onboard audio enabled                   JP3             Closed

      Onboard audio disabled                  JP3              Open

     Factory configured - do not alter       JP6              Open

     CMOS memory normal operation            JP8           Pins 1 & 2
                                                              closed

      CMOS memory clear                       JP8           Pins 2 & 3
                                                              closed

                               VGA SETTINGS

              Function                      JP4                JP5

  Onboard VGA enabled                    Pins 2 & 3         Pins 1 & 2
                                           closed             closed

  Onboard VGA disabled                   Pins 1 & 2         Pins 2 & 3
                                           closed             closed

                SIMM CONFIGURATION

      Size            Bank 0           Bank 1

       8MB         (2) 1MB x 36         None

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

      16MB         (2) 2MB x 36         None

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

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

      32MB         (2) 4MB x 36         None

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

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

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

      64MB         (2) 8MB x 36         None

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

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

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

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

      128MB       (2) 16MB x 36         None

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

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

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

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

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

  Note: Board accepts EDO memory.

                            DIMM 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) 8MB x 64             (1) 1MB x 64

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

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

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

          128MB               (1) 16MB x 64                 None

          136MB               (1) 16MB x 64             (1) 1MB x 64

          144MB               (1) 16MB x 64             (1) 2MB x 64

          160MB               (1) 16MB x 64             (1) 4MB x 64

          192MB               (1) 16MB x 64             (1) 8MB x 64

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

  Note: Board accepts EDO and SDRAM. Bank 2 cannot be used in conjunction
  with SIMM banks.

                        CPU SPEED SELECTION (CX 6X86)

  Speed    Clock   Multiplier   SW1/3   SW1/4   SW1/5   SW1/6   SW1/7   SW1/8
           speed

  150MHz   60MHz       2x        On      Off     Off     On     Off     Off

  166MHz   66MHz       2x        On      Off     Off    Off     Off     Off

  200MHz   75MHz       2x        On      Off     Off    Off      On     Off

                        CPU SPEED SELECTION (IBM 6X86)

  Speed    Clock   Multiplier   SW1/3   SW1/4   SW1/5   SW1/6   SW1/7   SW1/8
           speed

  150MHz   60MHz       2x        On      Off     Off     On     Off     Off

  166MHz   66MHz       2x        On      Off     Off    Off     Off     Off

  200MHz   75MHz       2x        On      Off     Off    Off      On     Off

                        CPU SPEED SELECTION (CX 6X86L)

  Speed    Clock   Multiplier   SW1/3   SW1/4   SW1/5   SW1/6   SW1/7   SW1/8
           speed

  150MHz   60MHz       2x        On      Off     Off     On     Off     Off

  166MHz   66MHz       2x        On      Off     Off    Off     Off     Off

  200MHz   75MHz       2x        On      Off     Off    Off      On     Off

                       CPU SPEED SELECTION (IBM 6X86L)

  Speed    Clock   Multiplier   SW1/3   SW1/4   SW1/5   SW1/6   SW1/7   SW1/8
           speed

  150MHz   60MHz       2x        On      Off     Off     On     Off     Off

  166MHz   66MHz       2x        On      Off     Off    Off     Off     Off

  200MHz   75MHz       2x        On      Off     Off    Off      On     Off

                       CPU SPEED SELECTION (CX 6X86MX)

  Speed    Clock   Multiplier   SW1/3   SW1/4   SW1/5   SW1/6   SW1/7   SW1/8
           speed

  166MHz   60MHz      2.5x       On      On      Off     On     Off     Off

  200MHz   75MHz       2x        On      Off     Off    Off      On     Off

                       CPU SPEED SELECTION (IBM 6X86MX)

  Speed    Clock   Multiplier   SW1/3   SW1/4   SW1/5   SW1/6   SW1/7   SW1/8
           speed

  166MHz   60MHz      2.5x       On      On      Off     On     Off     Off

  200MHz   75MHz       2x        On      Off     Off    Off      On     Off

                         CPU SPEED SELECTION (AM K5)

  Speed    Clock   Multiplier   SW1/3   SW1/4   SW1/5   SW1/6   SW1/7   SW1/8
           speed

  120MHz   60MHz       2x        On      Off     Off     On     Off     Off

  133MHz   66MHz       2x        On      Off     Off    Off     Off     Off

  166MHz   66MHz      2.5x       On      On      Off    Off     Off     Off

                         CPU SPEED SELECTION (AM K6)

  Speed    Clock   Multiplier   SW1/3   SW1/4   SW1/5   SW1/6   SW1/7   SW1/8
           speed

  166MHz   66MHz      2.5x       On      On      Off    Off     Off     Off

  200MHz   66MHz       3x        Off     On      Off    Off     Off     Off

  233MHz   66MHz      3.5x       Off     Off     Off    Off     Off     Off

  266MHz   66MHz       4x        Off     Off     On     Off     Off     Off

                        CPU SPEED SELECTION (PENTIUM)

  Speed    Clock   Multiplier   SW1/3   SW1/4   SW1/5   SW1/6   SW1/7   SW1/8
           speed

  90MHz    60MHz      1.5x       Off     Off     Off     On     Off     Off

  100MHz   66MHz      1.5x       Off     Off     Off    Off     Off     Off

  120MHz   60MHz       2x        On      Off     Off     On     Off     Off

  133MHz   66MHz       2x        On      Off     Off    Off     Off     Off

  150MHz   60MHz      2.5x       On      On      Off     On     Off     Off

  166MHz   66MHz      2.5x       On      On      Off    Off     Off     Off

  200MHz   66MHz       3x        Off     On      Off    Off     Off     Off

                      CPU SPEED SELECTION (PENTIUM MMX)

  Speed    Clock   Multiplier   SW1/3   SW1/4   SW1/5   SW1/6   SW1/7   SW1/8
           speed

  166MHz   66MHz      2.5x       On      On      Off    Off     Off     Off

  200MHz   66MHz       3x        Off     On      Off    Off     Off     Off

  233MHz   66MHz      3.5x       Off     Off     Off    Off     Off     Off

                           CPU VOLTAGE SELECTION

         Voltage                  SW1/1                    SW1/2

     Auto detection                Off                      Off

  Note: Using the auto detection mode, CPU voltage is selected from
  within the BIOS. No alternative settings are provided.

