QDI COMPUTER, INC.
==================

   P5I430VX-250 EXPLORER

   Processor        CX M1/AM K5/Pentium                           
   Processor Speed  75/90/100/120/133/150/166/180/200MHz          
   Chip Set         Intel                                         
   Video Chip Set   None                                          
   Maximum Onboard  128MB (EDO supported)                         
   Memory           
   Maximum Video    None                                          
   Memory           
   Cache            256/512KB                                     
   BIOS             Award                                         
   Dimensions       250mm x 220mm                                 
   I/O Options      32-bit PCI slots (4), floppy drive interface, 
                    green PC connector, IDE interfaces (2),       
                    parallel port, PS/2 mouse interface, serial   
                    ports (2), IR connector, USB connectors (2)   
   NPU Options      None                                          

<gopher://bitreich.org/I/th99/m/P-R/33900-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose           | Location | Purpose          | Location |
   |-------------------+----------+------------------+----------|
   | Serial port 2     |   CN1    | Reset switch     |    J3    |
   |-------------------+----------+------------------+----------|
   | Serial port 1     |   CN2    | Turbo LED        |    J4    |
   |-------------------+----------+------------------+----------|
   | Parallel port     |   CN3    | Speaker          |    J5    |
   |-------------------+----------+------------------+----------|
   | Floppy drive      |   CN4    | Power LED &      |    J6    |
   | interface         |          | keylock          |          |
   |-------------------+----------+------------------+----------|
   | IDE interface 2   |   CN5    | PS/2 mouse       |    J7    |
   |                   |          | interface        |          |
   |-------------------+----------+------------------+----------|
   | IDE interface 1   |   CN6    | Chassis fan      |    J8    |
   |                   |          | power            |          |
   |-------------------+----------+------------------+----------|
   | IR connector      |   IR1    | USB connector 1  |   J10    |
   |-------------------+----------+------------------+----------|
   | Green PC          |    J1    | USB connector 2  |   J11    |
   | connector         |          |                  |          |
   |-------------------+----------+------------------+----------|
   | IDE interface LED |    J2    | 32-bit PCI slots |  PC1 -   |
   |                   |          |                  |   PC4    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |             Function             | Label |    Position     |
   |----------------------------------+-------+-----------------|
   |>> | CMOS memory normal operation |  JP1  |   Pins 1 & 2    |
   |   |                              |       |     closed      |
   |---+------------------------------+-------+-----------------|
   |   | CMOS memory clear            |  JP1  |   Pins 2 & 3    |
   |   |                              |       |     closed      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM 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     |
   |------------------------------------------------------------|
   | Note: Board accepts EDO memory. Board also accepts x 32    |
   | SIMMs.                                                     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    CACHE CONFIGURATION                     |
   |------------------------------------------------------------|
   |       Size       |       Bank 0       |        TAG         |
   |------------------+--------------------+--------------------|
   |      256KB       |    (2) 32K x 32    |    Unidentified    |
   |------------------+--------------------+--------------------|
   |      512KB       |    (2) 64K x 32    |    Unidentified    |
   |------------------------------------------------------------|
   | Note: The location of bank 0 is unidentified.              |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                CPU SPEED SELECTION (CYRIX)                 |
   |------------------------------------------------------------|
   |  CPU   | Clock  | Multiplier |  JC1   |  JC2   | JS1 | JS2 |
   | speed  | speed  |            |        |        |     |     |
   |--------+--------+------------+--------+--------+-----+-----|
   | 120MHz | 50MHz  |     2x     | Closed | Closed | 2 & | 1 & |
   |        |        |            |        |        |  3  |  2  |
   |--------+--------+------------+--------+--------+-----+-----|
   | 133MHz | 55MHz  |     2x     |  Open  |  Open  | 2 & | 1 & |
   |        |        |            |        |        |  3  |  2  |
   |--------+--------+------------+--------+--------+-----+-----|
   | 150MHz | 60MHz  |     2x     | Closed |  Open  | 2 & | 1 & |
   |        |        |            |        |        |  3  |  2  |
   |--------+--------+------------+--------+--------+-----+-----|
   | 166MHz | 66MHz  |     2x     |  Open  | Closed | 2 & | 1 & |
   |        |        |            |        |        |  3  |  2  |
   |------------------------------------------------------------|
   | Note: Pins designated should be in the closed position.    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 CPU SPEED SELECTION (AMD)                  |
   |------------------------------------------------------------|
   |  CPU   | Clock  | Multiplier |  JC1   |  JC2   | JS1 | JS2 |
   | speed  | speed  |            |        |        |     |     |
   |--------+--------+------------+--------+--------+-----+-----|
   | 75MHz  | 50MHz  |    1.5x    | Closed | Closed | 2 & | 2 & |
   |        |        |            |        |        |  3  |  3  |
   |--------+--------+------------+--------+--------+-----+-----|
   | 90MHz  | 55MHz  |    1.5x    |  Open  |  Open  | 2 & | 2 & |
   |        |        |            |        |        |  3  |  3  |
   |--------+--------+------------+--------+--------+-----+-----|
   | 90MHz  | 60MHz  |    1.5x    | Closed |  Open  | 2 & | 2 & |
   |        |        |            |        |        |  3  |  3  |
   |--------+--------+------------+--------+--------+-----+-----|
   | 100MHz | 66MHz  |    1.5x    |  Open  | Closed | 2 & | 2 & |
   |        |        |            |        |        |  3  |  3  |
   |------------------------------------------------------------|
   | Note: Pins designated should be in the closed position.    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                CPU SPEED SELECTION (INTEL)                 |
   |------------------------------------------------------------|
   |  CPU   | Clock  | Multiplier |  JC1   |  JC2   | JS1 | JS2 |
   | speed  | speed  |            |        |        |     |     |
   |--------+--------+------------+--------+--------+-----+-----|
   | 75MHz  | 50MHz  |    1.5x    | Closed | Closed | 2 & | 2 & |
   |        |        |            |        |        |  3  |  3  |
   |--------+--------+------------+--------+--------+-----+-----|
   | 90MHz  | 60MHz  |    1.5x    | Closed |  Open  | 2 & | 2 & |
   |        |        |            |        |        |  3  |  3  |
   |--------+--------+------------+--------+--------+-----+-----|
   | 100MHz | 66MHz  |    1.5x    |  Open  | Closed | 2 & | 2 & |
   |        |        |            |        |        |  3  |  3  |
   |--------+--------+------------+--------+--------+-----+-----|
   | 120MHz | 60MHz  |     2x     | Closed |  Open  | 2 & | 1 & |
   |        |        |            |        |        |  3  |  2  |
   |--------+--------+------------+--------+--------+-----+-----|
   | 133MHz | 66MHz  |     2x     |  Open  | Closed | 2 & | 1 & |
   |        |        |            |        |        |  3  |  2  |
   |--------+--------+------------+--------+--------+-----+-----|
   | 150MHz | 60MHz  |    2.5x    | Closed |  Open  | 1 & | 1 & |
   |        |        |            |        |        |  2  |  2  |
   |--------+--------+------------+--------+--------+-----+-----|
   | 166MHz | 66MHz  |    2.5x    |  Open  | Closed | 1 & | 1 & |
   |        |        |            |        |        |  2  |  2  |
   |--------+--------+------------+--------+--------+-----+-----|
   | 180MHz | 60MHz  |     3x     | Closed |  Open  | 1 & | 2 & |
   |        |        |            |        |        |  2  |  3  |
   |--------+--------+------------+--------+--------+-----+-----|
   | 200MHz | 66MHz  |     3x     |  Open  | Closed | 1 & | 2 & |
   |        |        |            |        |        |  2  |  3  |
   |------------------------------------------------------------|
   | Note: Pins designated should be in the closed position.    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |               CPU VOLTAGE SELECTION (SINGLE)               |
   |------------------------------------------------------------|
   |  Voltage  |   JV1    |   JV2    |   JV3    |  JV4   | JV5  |
   |-----------+----------+----------+----------+--------+------|
   |   3.3v    |  Closed  |  Closed  |   Open   | 1 & 2  | N/A  |
   |-----------+----------+----------+----------+--------+------|
   |   3.5v    |  Closed  |  Closed  |  Closed  | 1 & 2  | N/A  |
   |------------------------------------------------------------|
   | Note: Pins designated should be in the closed position.    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                CPU VOLTAGE SELECTION (DUAL)                |
   |------------------------------------------------------------|
   |    I/O     | V core | JV1  | JV2  |  JV3   |  JV4  |  JV5  |
   |  voltage   |        |      |      |        |       |       |
   |------------+--------+------+------+--------+-------+-------|
   |    3.3v    |  2.5   | Open | Open |  Open  | 2 & 3 | Open  |
   |------------+--------+------+------+--------+-------+-------|
   |    3.3v    |  2.7   | Open | Open |  Open  | 2 & 3 | 1 & 2 |
   |------------+--------+------+------+--------+-------+-------|
   |    3.3v    |  2.9   | Open | Open |  Open  | 2 & 3 | 2 & 3 |
   |------------+--------+------+------+--------+-------+-------|
   |    3.5v    |  2.5   | Open | Open | Closed | 2 & 3 | Open  |
   |------------+--------+------+------+--------+-------+-------|
   |    3.5v    |  2.7   | Open | Open | Closed | 2 & 3 | 2 & 3 |
   |------------+--------+------+------+--------+-------+-------|
   |    3.5v    |  2.9   | Open | Open | Closed | 2 & 3 | 2 & 3 |
   |------------------------------------------------------------|
   | Note: Pins designated should be in the closed position.    |
   +------------------------------------------------------------+