MITAC INTERNATIONAL CORPORATION
===============================

   PB5400S

   Processor        Pentium                                       
   Processor Speed  75/90/100/120/133/150/166MHz                  
   Chip Set         SIS                                           
   Video Chip Set   None                                          
   Maximum Onboard  128MB (EDO supported)                         
   Memory           
   Maximum Video    None                                          
   Memory           
   Cache            256/512KB                                     
   BIOS             Award                                         
   Dimensions       330mm x 218mm                                 
   I/O Options      32-bit PCI slots (4), floppy drive interface, 
                    green PC connector, IDE interfaces (2),       
                    parallel port, PS/2 mouse port, serial ports  
                    (2), VGA feature connector, VGA connector,    
                    cache slot, IR connector                      
   NPU Options      None                                          

<gopher://bitreich.org/I/th99/m/M-O/33838-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose           | Location | Purpose          | Location |
   |-------------------+----------+------------------+----------|
   | VGA feature       |   CO1    | Reset switch     |   J13    |
   | connector         |          |                  |          |
   |-------------------+----------+------------------+----------|
   | VGA connector     |   CO2    | Turbo LED        |   J14    |
   |-------------------+----------+------------------+----------|
   | PS/2 mouse port   |    J1    | Green PC         |   J15    |
   |                   |          | connector        |          |
   |-------------------+----------+------------------+----------|
   | Serial port 2     |    J5    | IDE interface    |   J16    |
   |                   |          | LED              |          |
   |-------------------+----------+------------------+----------|
   | Serial port 1     |    J6    | Turbo switch     |   J17    |
   |-------------------+----------+------------------+----------|
   | Parallel port     |    J7    | Speaker          |   J18    |
   |-------------------+----------+------------------+----------|
   | Floppy drive      |    J8    | Power LED &      |   J19    |
   | interface         |          | keylock          |          |
   |-------------------+----------+------------------+----------|
   | IDE interface 2   |    J9    | IR connector     |   JP1    |
   |-------------------+----------+------------------+----------|
   | IDE interface 1   |   J10    | 32-bit PCI slots |  PC1 -   |
   |                   |          |                  |   PC4    |
   |-------------------+----------+------------------+----------|
   | External battery  |   J12    | Cache slot       |   SL1    |
   |------------------------------------------------------------|
   | Note: J1 may not be present on all boards.                 |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |             Function             | Label |    Position     |
   |----------------------------------+-------+-----------------|
   |>> | CMOS memory normal operation | JP14  |   Pins 1 & 2    |
   |   |                              |       |     closed      |
   |---+------------------------------+-------+-----------------|
   |   | CMOS memory clear            | JP14  |   Pins 2 & 3    |
   |   |                              |       |     closed      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   |     Size     |        Bank 0        |        Bank 1        |
   |--------------+----------------------+----------------------|
   |     2MB      |    (2) 256K x 32     |         None         |
   |--------------+----------------------+----------------------|
   |     4MB      |    (2) 512K x 32     |         None         |
   |--------------+----------------------+----------------------|
   |     4MB      |    (2) 256K x 32     |    (2) 256K x 32     |
   |--------------+----------------------+----------------------|
   |     8MB      |     (2) 1M x 32      |         None         |
   |--------------+----------------------+----------------------|
   |     8MB      |    (2) 512K x 32     |    (2) 512K x 32     |
   |--------------+----------------------+----------------------|
   |     16MB     |     (2) 2M x 32      |         None         |
   |--------------+----------------------+----------------------|
   |     16MB     |     (2) 1M x 32      |     (2) 1M x 32      |
   |--------------+----------------------+----------------------|
   |     32MB     |     (2) 4M x 32      |         None         |
   |--------------+----------------------+----------------------|
   |     32MB     |     (2) 2M x 32      |     (2) 2M x 32      |
   |--------------+----------------------+----------------------|
   |     64MB     |     (2) 8M x 32      |         None         |
   |--------------+----------------------+----------------------|
   |     64MB     |     (2) 4M x 32      |     (2) 4M x 32      |
   |--------------+----------------------+----------------------|
   |    128MB     |     (2) 8M x 32      |     (2) 8M x 32      |
   |------------------------------------------------------------|
   | Note: Board accepts EDO memory. Banks are interchangeable. |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    CACHE CONFIGURATION                     |
   |------------------------------------------------------------|
   |     Size     |       Bank 0       |          SL1           |
   |--------------+--------------------+------------------------|
   |    256KB     |    (2) 32K x 32    |     Not installed      |
   |--------------+--------------------+------------------------|
   |    256KB     |        None        | 256KB module installed |
   |--------------+--------------------+------------------------|
   |    512KB     |    (2) 32K x 32    | 256KB module installed |
   |------------------------------------------------------------|
   | Note: The location of Bank 0 is unidentified.              |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 CACHE JUMPER CONFIGURATION                 |
   |------------------------------------------------------------|
   |            Size            |              JP5              |
   |----------------------------+-------------------------------|
   |           256KB            |       Pins 1 & 2 closed       |
   |----------------------------+-------------------------------|
   |           512KB            |       Pins 2 & 3 closed       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    CPU SPEED SELECTION                     |
   |------------------------------------------------------------|
   |  CPU   | Clock  | Multiplier |  JP2  | JP3  | JP4  | JP10  |
   | speed  | speed  |            |       |      |      |       |
   |--------+--------+------------+-------+------+------+-------|
   | 75MHz  | 50MHz  |    1.5x    | 2 & 3 | 2 &  | Open | Open  |
   |        |        |            |       |  3   |      |       |
   |--------+--------+------------+-------+------+------+-------|
   | 90MHz  | 60MHz  |    1.5x    | 1 & 2 | 2 &  | Open | Open  |
   |        |        |            |       |  3   |      |       |
   |--------+--------+------------+-------+------+------+-------|
   | 100MHz | 66MHz  |    1.5x    | 2 & 3 | 1 &  | Open | Open  |
   |        |        |            |       |  2   |      |       |
   |--------+--------+------------+-------+------+------+-------|
   | 120MHz | 60MHz  |     2x     | 1 & 2 | 2 &  | Open | 1 & 3 |
   |        |        |            |       |  3   |      |       |
   |--------+--------+------------+-------+------+------+-------|
   | 133MHz | 66MHz  |     2x     | 2 & 3 | 1 &  | Open | 1 & 3 |
   |        |        |            |       |  2   |      |       |
   |--------+--------+------------+-------+------+------+-------|
   | 150MHz | 60MHz  |    2.5x    | 1 & 2 | 2 &  | Open |  1 &  |
   |        |        |            |       |  3   |      | 3, 2  |
   |        |        |            |       |      |      |  & 4  |
   |--------+--------+------------+-------+------+------+-------|
   | 166MHz | 66MHz  |    2.5x    | 2 & 3 | 1 &  | Open |  1 &  |
   |        |        |            |       |  2   |      | 3, 2  |
   |        |        |            |       |      |      |  & 4  |
   |------------------------------------------------------------|
   | Note: Pins designated should be in the closed position.    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   CPU VOLTAGE SELECTION                    |
   |------------------------------------------------------------|
   |          Voltage           |             JP11              |
   |----------------------------+-------------------------------|
   |           STD/VR           |       Pins 2 & 3 closed       |
   |----------------------------+-------------------------------|
   |            VRE             |       Pins 1 & 2 closed       |
   +------------------------------------------------------------+