
GEMLIGHT COMPUTER, LTD.

GMB-P6IAK (VER. 1.02)

Device Type                Mainboard
Processor                  Pentium II
Processor Speed            233/266/300MHz
Chip Set                   Intel 440FX
Maximum Onboard Memory     512MB (EDO supported)
Cache                      256/512KB (located on the Pentium II CPU)
BIOS                       AMI
Dimensions                 305mm x 244mm
I/O Options                32-bit PCI slots (5), floppy drive interface,
                           green PC connector, IDE interface (2), parallel
                           port, PS/2 mouse port, serial ports (2), IR
                           connector, USB connector (2), ATX power
                           connector

[Image]

                                CONNECTIONS

  Purpose                Location      Purpose                Location

  ATX power supply         ATX         USB connector 1           J4A

  Speaker              J1/pins 1 - 4   USB connector 2           J4B

  Reset switch         J1/pins 6 & 7   Serial port 2             J6

  Keylock               J1/pins 9 -    IDE interface 1           J7
                            13

  IDE interface LED    J1/pins 15 -    IDE interface 2           J8
                            18

  Green PC connector   J1/pins 20 &    Parallel port             J9
                            21

  ATX power switch     J1/pins 22 &    PS/2 mouse port           J13
                            23

  Turbo LED            J1/pins 25 &    Serial port 1             J15
                            26

  IR connector              J2         32-bit PCI slots       PC1 - PC5

  Floppy drive              J3
  interface

                        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

     CMOS memory normal operation            JP3           Pins 2 & 3
                                                              closed

      CMOS memory clear                       JP3           Pins 1 & 2
                                                              closed

                           DRAM CONFIGURATION

     Size         Bank 0         Bank 1         Bank 2        Bank 3

     8MB        (2) 1M x 36       None           None          None

     16MB       (2) 2M x 36       None           None          None

     16MB       (2) 1M x 36   (2) 1M x 36        None          None

     24MB       (2) 2M x 36   (2) 1M x 36        None          None

     24MB       (2) 1M x 36   (2) 1M x 36    (2) 1M x 36       None

     32MB       (2) 4M x 36       None           None          None

     32MB       (2) 2M x 36   (2) 2M x 36        None          None

     32MB       (2) 1M x 36   (2) 1M x 36    (2) 1M x 36    (2) 1M x 36

     40MB       (2) 4M x 36   (2) 1M x 36        None          None

     48MB       (2) 4M x 36   (2) 2M x 36        None          None

     48MB       (2) 2M x 36   (2) 2M x 36    (2) 2M x 36       None

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

     64MB       (2) 8M x 36       None           None          None

     64MB       (2) 4M x 36   (2) 4M x 36        None          None

                        DRAM CONFIGURATION (CONT)

     Size          Bank 0         Bank 1         Bank 2         Bank 3

     72MB        (2) 8M x 36   (2) 1M x 36        None           None

     80MB        (2) 8M x 36   (2) 2M x 36        None           None

     96MB        (2) 8M x 36   (2) 4M x 36        None           None

     96MB        (2) 4M x 36   (2) 4M x 36    (2) 4M x 36        None

     128MB       (2) 16M x 36      None           None           None

     128MB       (2) 8M x 36   (2) 8M x 36        None           None

     128MB       (2) 4M x 36   (2) 4M x 36    (2) 4M x 36    (2) 4M x 36

     136MB       (2) 16M x 36  (2) 1M x 36        None           None

     144MB       (2) 16M x 36  (2) 2M x 36        None           None

     152MB       (2) 16M x 36  (2) 1M x 36    (2) 1M x 36    (2) 1M x 36

     160MB       (2) 16M x 36  (2) 4M x 36        None           None

     176MB       (2) 16M x 36  (2) 2M x 36    (2) 2M x 36    (2) 2M x 36

     192MB       (2) 16M x 36  (2) 8M x 36        None           None

     192MB       (2) 8M x 36   (2) 8M x 36    (2) 8M x 36        None

     224MB       (2) 16M x 36  (2) 4M x 36    (2) 4M x 36    (2) 4M x 36

     256MB       (2) 32M x 36      None           None           None

     256MB       (2) 16M x 36  (2) 16M x 36       None           None

     256MB       (2) 8M x 36   (2) 8M x 36    (2) 8M x 36    (2) 8M x 36

     272MB       (2) 16M x 36  (2) 16M x 36   (2) 1M x 36    (2) 1M x 36

     280MB       (2) 32M x 36  (2) 1M x 36    (2) 1M x 36    (2) 1M x 36

     288MB       (2) 16M x 36  (2) 16M x 36   (2) 2M x 36    (2) 2M x 36

     304MB       (2) 32M x 36  (2) 2M x 36    (2) 2M x 36    (2) 2M x 36

     320MB       (2) 16M x 36  (2) 16M x 36   (2) 4M x 36    (2) 4M x 36

     320MB       (2) 16M x 36  (2) 8M x 36    (2) 8M x 36    (2) 8M x 36

     352MB       (2) 32M x 36  (2) 4M x 36    (2) 4M x 36    (2) 4M x 36

     384MB       (2) 16M x 36  (2) 16M x 36   (2) 16M x 36       None

     448MB       (2) 32M x 36  (2) 8M x 36    (2) 8M x 36    (2) 8M x 36

     512MB       (2) 16M x 36  (2) 16M x 36   (2) 16M x 36   (2) 16M x 36

                       CPU SPEED SELECTION (PENTIUM)

     Speed        Clock speed    Multiplier        JP5            JP6

     233MHz          66MHz          3.5x        1 & 2, 3 &       1 & 2
                                                    4

     266MHz          66MHz           4x         1 & 2, 5 &       1 & 2
                                                 6, 7 & 8

     300MHz          66MHz          4.5x        1 & 2, 5 &       1 & 2
                                                    6

  Note: Numbers designate pins that should be closed.

