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

   EXP8561

   Device Type      Mainboard                                     
   Processor        CX 6X86/AM K5/Pentium/Pentium MMX             
   Processor Speed  75/90/100/120/133/150/166/200MHz              
   Chip Set         Unidentified                                  
   Video Chip Set   None                                          
   Maximum Onboard  128MB                                         
   Memory           
   Maximum Video    None                                          
   Memory           
   Cache            256/512KB                                     
   BIOS             Award                                         
   Dimensions       260mm x 220mm                                 
   I/O Options      32-bit PCI slots (4), floppy drive interface, 
                    IDE interfaces (2), parallel port, PS/2 mouse 
                    interface, serial ports (2), cache slot, USB  
                    connectors (2)                                

<gopher://bitreich.org/I/th99/m/C-D/35699-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose           | Location | Purpose          | Location |
   |-------------------+----------+------------------+----------|
   | PS/2 mouse        |   CN1    | USB connector 2  |   J14    |
   | interface         |          |                  |          |
   |-------------------+----------+------------------+----------|
   | Serial port 2     |   CN2    | Reset switch     |   J15    |
   |-------------------+----------+------------------+----------|
   | Serial port 1     |   CN3    | Power LED &      |   J18    |
   |                   |          | keylock          |          |
   |-------------------+----------+------------------+----------|
   | Floppy drive      |   CN4    | Speaker          |   J19    |
   | interface         |          |                  |          |
   |-------------------+----------+------------------+----------|
   | IDE interface 2   |   CN5    | IDE interface    |   J20    |
   |                   |          | LED              |          |
   |-------------------+----------+------------------+----------|
   | IDE interface 1   |   CN6    | Green PC         |   JP6    |
   |                   |          | connector        |          |
   |-------------------+----------+------------------+----------|
   | Parallel port     |    J4    | 32-bit PCI slots |  PC1 -   |
   |                   |          |                  |   PC4    |
   |-------------------+----------+------------------+----------|
   | USB connector 1   |   J13    | Cache slot       |   SL1    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |              Function               | Label |   Position   |
   |-------------------------------------+-------+--------------|
   |>> | AT bus CLK select PCICLK/4      |  JP7  |    Closed    |
   |---+---------------------------------+-------+--------------|
   |   | AT bus CLK select PCICLK/3      |  JP7  |     Open     |
   |---+---------------------------------+-------+--------------|
   |>> | CMOS memory normal operation    |  JP8  |     Open     |
   |---+---------------------------------+-------+--------------|
   |   | CMOS memory clear               |  JP8  |    Closed    |
   |---+---------------------------------+-------+--------------|
   |>> | Factory configured - do not     | JP12  | Unidentified |
   |   | alter                           |       |              |
   |---+---------------------------------+-------+--------------|
   |>> | Factory configured - do not     | JP13  | Unidentified |
   |   | alter                           |       |              |
   |---+---------------------------------+-------+--------------|
   |>> | Flash BIOS voltage select 5v    | JP14  |  Pins 1 & 2  |
   |   |                                 |       |    closed    |
   |---+---------------------------------+-------+--------------|
   |   | Flash BIOS voltage select 12v   | JP14  |  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     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    CACHE CONFIGURATION                     |
   |------------------------------------------------------------|
   | Size  |    Bank 0    |        SL1        |       TAG       |
   |-------+--------------+-------------------+-----------------|
   | 256KB | (2) 32K x 32 |   Not installed   | (1) 8K/16K/32K  |
   |       |              |                   |       x 8       |
   |-------+--------------+-------------------+-----------------|
   | 512KB | (2) 32K x 32 |   256KB module    | (1) 16K/32K x 8 |
   |       |              |     installed     |                 |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 CACHE JUMPER CONFIGURATION                 |
   |------------------------------------------------------------|
   |  Size   |   J16    |       JP15        |  JP19   |  JP21   |
   |---------+----------+-------------------+---------+---------|
   |  256KB  |   Open   |       Open        | Closed  |  Open   |
   |---------+----------+-------------------+---------+---------|
   |  512KB  |  Closed  | Pins 2 & 3 closed |  Open   | Closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |               CPU SPEED SELECTION (CX 6X86)                |
   |------------------------------------------------------------|
   |CPU speed|Clock speed|Multiplier|  JP9  | JP10  | JP22 |JP23|
   |---------+-----------+----------+-------+-------+------+----|
   | 120MHz  |   50MHz   |    2x    |Closed |Closed |Closed|Open|
   |---------+-----------+----------+-------+-------+------+----|
   | 133MHz  |   55MHz   |    2x    | Open  | Open  |Closed|Open|
   |---------+-----------+----------+-------+-------+------+----|
   | 150MHz  |   60MHz   |    2x    |Closed | Open  |Closed|Open|
   |---------+-----------+----------+-------+-------+------+----|
   | 166MHz  |   66MHz   |    2x    | Open  |Closed |Closed|Open|
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                CPU SPEED SELECTION (AM K5)                 |
   |------------------------------------------------------------|
   |CPU speed|Clock speed|Multiplier|  JP9  | JP10  |JP22 |JP23 |
   |---------+-----------+----------+-------+-------+-----+-----|
   |  75MHz  |   50MHz   |   1.5x   |Closed |Closed |Open |Open |
   |---------+-----------+----------+-------+-------+-----+-----|
   |  90MHz  |   60MHz   |   1.5x   |Closed | Open  |Open |Open |
   |---------+-----------+----------+-------+-------+-----+-----|
   | 100MHz  |   66MHz   |   1.5x   | Open  |Closed |Open |Open |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                CPU SPEED SELECTION (INTEL)                 |
   |------------------------------------------------------------|
   |CPU speed|Clock speed|Multiplier| JP9  | JP10 | JP22 | JP23 |
   |---------+-----------+----------+------+------+------+------|
   |  75MHz  |   50MHz   |   1.5x   |Closed|Closed| Open | Open |
   |---------+-----------+----------+------+------+------+------|
   |  90MHz  |   60MHz   |   1.5x   |Closed| Open | Open | Open |
   |---------+-----------+----------+------+------+------+------|
   | 100MHz  |   66MHz   |   1.5x   | Open |Closed| Open | Open |
   |---------+-----------+----------+------+------+------+------|
   | 120MHz  |   60MHz   |    2x    |Closed| Open |Closed| Open |
   |---------+-----------+----------+------+------+------+------|
   | 133MHz  |   66MHz   |    2x    | Open |Closed|Closed| Open |
   |---------+-----------+----------+------+------+------+------|
   | 150MHz  |   60MHz   |   2.5x   |Closed| Open |Closed|Closed|
   |---------+-----------+----------+------+------+------+------|
   | 166MHz  |   66MHz   |   2.5x   | Open |Closed|Closed|Closed|
   |---------+-----------+----------+------+------+------+------|
   | 200MHz  |   66MHz   |    3x    | Open |Closed| Open |Closed|
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |              CPU SPEED SELECTION (INTEL MMX)               |
   |------------------------------------------------------------|
   |CPU speed|Clock speed|Multiplier| JP9 | JP10  | JP22 | JP23 |
   |---------+-----------+----------+-----+-------+------+------|
   | 166MHz  |   66MHz   |   2.5x   |Open |Closed |Closed|Closed|
   |---------+-----------+----------+-----+-------+------+------|
   | 200MHz  |   66MHz   |    3x    |Open |Closed | Open |Closed|
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |               CPU VOLTAGE SELECTION (SINGLE)               |
   |------------------------------------------------------------|
   |            Voltage            |            JP18            |
   |-------------------------------+----------------------------|
   |            Single             |            Open            |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                CPU VOLTAGE SELECTION (DUAL)                |
   |------------------------------------------------------------|
   | Voltage |   V core    |     JP18     |    JPA1    |  JPA2  |
   |---------+-------------+--------------+------------+--------|
   |  3.3v   |    2.9v     |  Pins 2 & 3  |    Open    | Closed |
   |         |             |    closed    |            |        |
   |---------+-------------+--------------+------------+--------|
   |  3.3v   |    3.3v     |  Pins 2 & 3  | Pins 2 & 3 |  Open  |
   |         |             |    closed    |   closed   |        |
   |---------+-------------+--------------+------------+--------|
   |  3.3v   | 3.45 - 3.6v |  Pins 2 & 3  | Pins 1 & 2 |  Open  |
   |         |             |    closed    |   closed   |        |
   |---------+-------------+--------------+------------+--------|
   |  3.45v  |    2.9v     |  Pins 1 & 2  |    Open    | Closed |
   |         |             |    closed    |            |        |
   |---------+-------------+--------------+------------+--------|
   |  3.45v  |    3.3v     |  Pins 1 & 2  | Pins 2 & 3 |  Open  |
   |         |             |    closed    |   closed   |        |
   |---------+-------------+--------------+------------+--------|
   |  3.45v  | 3.45 - 3.6v |  Pins 1 & 2  | Pins 1 & 2 |  Open  |
   |         |             |    closed    |   closed   |        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   DMA CHANNEL SELECTION                    |
   |------------------------------------------------------------|
   |     Channel      |        JP4         |        JP5         |
   |------------------+--------------------+--------------------|
   |        1         | Pins 1 & 2 closed  | Pins 1 & 2 closed  |
   |------------------+--------------------+--------------------|
   |        3         | Pins 2 & 3 closed  | Pins 2 & 3 closed  |
   +------------------------------------------------------------+