DATAEXPERT CORPORATION
======================

   ATX431

   Device Type      Mainboard                                     
   Processor        CX 6X86/CX 686MX/AM K5/AM K6/Pentium/Pentium  
                    MMX                                           
   Processor Speed  90/100/120/133/150/166/200/233MHz             
   Chip Set         Intel 430TX                                   
   Video Chip Set   None                                          
   Maximum Onboard  256MB (EDO & SDRAM supported)                 
   Memory           
   Maximum Video    None                                          
   Memory           
   Cache            512KB                                         
   BIOS             AMI                                           
   Dimensions       305mm x 190mm                                 
   I/O Options      32-bit PCI slots (4), floppy drive interface, 
                    IDE interfaces (2), parallel port, PS/2 mouse 
                    port, serial ports (2), IR connectors (2),    
                    USB connectors (2), ATX power connector       

<gopher://bitreich.org/I/th99/m/C-D/35704-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose           | Location | Purpose          | Location |
   |-------------------+----------+------------------+----------|
   | ATX power         |   ATX    | IDE interface    |    J3    |
   | connector         |          | LED              |          |
   |-------------------+----------+------------------+----------|
   | Serial port 1     |   CN1    | Reset switch     |    J4    |
   |-------------------+----------+------------------+----------|
   | Parallel port     |   CN2    | Turbo LED        |    J5    |
   |-------------------+----------+------------------+----------|
   | PS/2 mouse port   |   CN3    | IR connector     |    J8    |
   |-------------------+----------+------------------+----------|
   | Serial port 2     |   CN4    | CIR connector    |    J9    |
   |-------------------+----------+------------------+----------|
   | IDE interface 1   |   CN5    | USB connector 1  |   J10    |
   |-------------------+----------+------------------+----------|
   | IDE interface 2   |   CN6    | USB connector 2  |   J11    |
   |-------------------+----------+------------------+----------|
   | Floppy drive      |   CN7    | 32-bit PCI slots |  PC1 -   |
   | interface         |          |                  |   PC4    |
   |-------------------+----------+------------------+----------|
   | Power LED &       |    J1    | Soft off power   |   SW1    |
   | keylock           |          | supply           |          |
   |-------------------+----------+------------------+----------|
   | Speaker           |    J2    |                  |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |             Function              | Label |    Position    |
   |-----------------------------------+-------+----------------|
   |>> | Flash BIOS voltage select 5v  |  JP3  |   Pins 2 & 3   |
   |   |                               |       |     closed     |
   |---+-------------------------------+-------+----------------|
   |   | Flash BIOS voltage select 12v |  JP3  |   Pins 1 & 2   |
   |   |                               |       |     closed     |
   |---+-------------------------------+-------+----------------|
   |>> | CMOS memory normal operation  |  JP6  |     Closed     |
   |---+-------------------------------+-------+----------------|
   |   | CMOS memory clear             |  JP6  |      Open      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     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     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 SIMM CONFIGURATION (CON'T)                 |
   |------------------------------------------------------------|
   |       Size       |       Bank 0       |       Bank 1       |
   |------------------+--------------------+--------------------|
   |      128MB       |    (2) 16M x 36    |        None        |
   |------------------+--------------------+--------------------|
   |      136MB       |    (2) 16M x 36    |    (2) 1M x 36     |
   |------------------+--------------------+--------------------|
   |      144MB       |    (2) 16M x 36    |    (2) 2M x 36     |
   |------------------+--------------------+--------------------|
   |      160MB       |    (2) 16M x 36    |    (2) 4M x 36     |
   |------------------+--------------------+--------------------|
   |      192MB       |    (2) 16M x 36    |    (2) 8M x 36     |
   |------------------+--------------------+--------------------|
   |      256MB       |    (2) 16M x 36    |    (2) 16M x 36    |
   |------------------------------------------------------------|
   | Note: Board accepts EDO memory.                            |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DIMM CONFIGURATION                     |
   |------------------------------------------------------------|
   |       Size       |       Bank 2       |       Bank 3       |
   |------------------+--------------------+--------------------|
   |       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) 16M x 64    |        None        |
   |------------------+--------------------+--------------------|
   |      128MB       |    (1) 8M x 64     |    (1) 8M x 64     |
   |------------------+--------------------+--------------------|
   |      136MB       |    (1) 16M x 64    |    (1) 1M x 64     |
   |------------------+--------------------+--------------------|
   |      144MB       |    (1) 16M x 64    |    (1) 2M x 64     |
   |------------------+--------------------+--------------------|
   |      160MB       |    (1) 16M x 64    |    (1) 4M x 64     |
   |------------------+--------------------+--------------------|
   |      192MB       |    (1) 16M x 64    |    (1) 8M x 64     |
   |------------------+--------------------+--------------------|
   |      256MB       |    (1) 16M x 64    |    (1) 16M x 64    |
   |------------------------------------------------------------|
   |      Note: Board accepts SDRAM memory.                     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    CACHE CONFIGURATION                     |
   |------------------------------------------------------------|
   |            Size            |            Bank 0             |
   |----------------------------+-------------------------------|
   |           512KB            |         (2) 64K x 32          |
   +------------------------------------------------------------+