DATAEXPERT CORPORATION

GCT-MGX

Device Type            Mainboard
Processor              CX GX
Processor Speed        120/133/150/166/180/200MHz
Chip Set               CX 5510
Video Chip Set         Cyrix integrated
Audio Chip Set         Cyrix integrated
Maximum Onboard Memory 128MB
Cache                  None
BIOS                   Unidentified
Dimensions             254mm x 218mm
I/O Options            32-bit PCI slots (3), floppy drive interface, game
                       interface, green PC connector, IDE interfaces (2),
                       parallel port, PS/2 mouse interface, serial ports
                       (2), IR connector, ATX power connector, audio in –
                       CD-ROMs (2)

[Image]

                                CONNECTIONS

  Purpose               Location     Purpose                Location

  ATX power               ATX        IR connector              IR1
  connector

  Serial port 2           CN1        Speaker            JP7/pins 1/3/5/7

  Serial port 1           CN2        Power LED &             JP7/pins
                                     keylock               2/4/6/8/10

  IDE interface 1         CN3        Reset switch       JP7/pins 13 & 14

  IDE interface 2         CN4        IDE interface      JP7/pins 15 & 16
                                     LED

  Floppy drive            CN5        Green PC           JP7/pins 17 & 18
  interface                          connector

  Parallel port           CN6        Green PC LED       JP7/pins 19 & 20

  CPU fan power           FAN        MIDI board                JP9
                                     connector

  Game interface           J5        Soft off power           JP11
                                     supply

  Audio in – CD-ROM        J6        PS/2 mouse               JP14
                                     interface

  Audio in – CD-ROM        J7        32-bit PCI slots       PC1 – PC3

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

  »   CMOS memory normal operation            JP13          Pins 1 & 2
                                                              closed

      CMOS memory clear                       JP13          Pins 2 & 3
                                                              closed

             SIMM CONFIGURATION

     Size          Bank 0        Bank 1

      8MB        (2) 1M x 36      None

     16MB        (2) 2M x 36      None

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

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

     32MB        (2) 4M x 36      None

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

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

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

     64MB        (2) 8M x 36      None

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

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

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

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

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

       DIMM CONFIGURATION

      Size          Bank 2

      8MB         (1) 1M x 64

      16MB        (1) 2M x 64

      32MB        (1) 4M x 64

      64MB        (1) 8M x 64

     128MB       (1) 16M x 64

                  DIMM VOLTAGE CONFIGURATION

       Voltage               JP5A                 JP5B

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

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

                     CPU SPEED SELECTION

        Speed                JP8A                 JP8B

        30MHz          Pins 2 & 3 closed   Pins 1 & 2 closed

        33MHz          Pins 1 & 2 closed   Pins 2 & 3 closed

                   CPU MULTIPLIER SELECTION

     Multiplier              JP1A                 JP1B

         4x            Pins 1 & 2 closed   Pins 1 & 2 closed

         5x            Pins 2 & 3 closed   Pins 1 & 2 closed

         6x            Pins 1 & 2 closed   Pins 2 & 3 closed

      CPU VOLTAGE SELECTION (SINGLE)

       Voltage               JP2

        2.9v          Pins 3 & 4 closed

        3.6v          Pins 1 & 2 closed

                       CPU VOLTAGE SELECTION (DUAL)

      Voltage           V core             JP3                 JP4

       3.3v              2.9v           Pins 1 & 2      Pins 1 & 2 closed
                                          closed

       3.3v              3.6v           Pins 1 & 2      Pins 1 & 2 closed
                                          closed

       2.9v              2.9v           Pins 2 & 3      Pins 2 & 3 closed
                                          closed

       3.6v              3.6v           Pins 2 & 3      Pins 2 & 3 closed
                                          closed