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  128MB                                         
   Memory           
   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)   

<gopher://bitreich.org/I/th99/m/C-D/35882-1.png>
   

   +------------------------------------------------------------+
   |                        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 |
   |                  |          | LED            |    & 16     |
   |------------------+----------+----------------+-------------|
   | Floppy drive     |   CN5    | Green PC       | JP7/pins 17 |
   | interface        |          | connector      |    & 18     |
   |------------------+----------+----------------+-------------|
   | 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 -       |    J6    | PS/2 mouse     |    JP14     |
   | CD-ROM           |          | interface      |             |
   |------------------+----------+----------------+-------------|
   | Audio in -       |    J7    | 32-bit PCI     |  PC1 - PC3  |
   | CD-ROM           |          | slots          |             |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 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 closed | Pins 1 & 2 closed |
   |----------+---------+-------------------+-------------------|
   |   3.3v   |  3.6v   | Pins 1 & 2 closed | Pins 1 & 2 closed |
   |----------+---------+-------------------+-------------------|
   |   2.9v   |  2.9v   | Pins 2 & 3 closed | Pins 2 & 3 closed |
   |----------+---------+-------------------+-------------------|
   |   3.6v   |  3.6v   | Pins 2 & 3 closed | Pins 2 & 3 closed |
   +------------------------------------------------------------+