PEAKTRON COMPUTER, INC.
=======================

   PA 286-16/20/25 & PA 386SX-16/20

   Processor             80286/80386SX                            
   Processor Speed       16/20/25MHz                              
   Chip Set              Peaktron                                 
   Max. Onboard DRAM     16MB                                     
   Cache                 None                                     
   BIOS                  AMI                                      
   Dimensions            330mm x 220mm                            
   I/O Options           None                                     
   NPU Options           80287/80387SX                            

<gopher://bitreich.org/I/th99/m/P-R/30310-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose        | Location | Purpose             | Location |
   |----------------+----------+---------------------+----------|
   | Reset switch   |    J1    | Speaker             |    J4    |
   |----------------+----------+---------------------+----------|
   | Turbo switch   |    J2    | Power LED & keylock |    J5    |
   |----------------+----------+---------------------+----------|
   | Turbo LED      |    J3    | External battery    |   JP1    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |            Function            | Jumper/Switch | Position  |
   |--------------------------------+---------------+-----------|
   |>> | CPU speed select           |      J6       |   open    |
   |   | switchable at turbo switch |               |           |
   |---+----------------------------+---------------+-----------|
   |   | CPU speed select           |      J6       | 1 & 2 or  |
   |   | switchable at keyboard     |               |   2 & 3   |
   |---+----------------------------+---------------+-----------|
   |>> | Monitor type select        |      J7       |   open    |
   |   | monochrome                 |               |           |
   |---+----------------------------+---------------+-----------|
   |   | Monitor type select color  |      J7       |  closed   |
   |---+----------------------------+---------------+-----------|
   |>> | NPU mode select            |      J11      | pins 2 &  |
   |   | synchronous with CPU       |               | 3 closed  |
   |---+----------------------------+---------------+-----------|
   |   | NPU mode select            |      J11      | pins 1 &  |
   |   | asynchronous with CPU      |               | 2 closed  |
   |---+----------------------------+---------------+-----------|
   |>> | Bus speed select ATCLK/2   |     SW1/1     |   Open    |
   |---+----------------------------+---------------+-----------|
   |   | Bus speed select ATCLK/3   |     SW1/1     |  Closed   |
   |---+----------------------------+---------------+-----------|
   |>> | Parity check enabled       |     SW1/2     |  Closed   |
   |---+----------------------------+---------------+-----------|
   |   | Parity check disabled      |     SW1/2     |   Open    |
   |---+----------------------------+---------------+-----------|
   |>> | DRAM select 0 wait states  |     SW1/3     |  Closed   |
   |---+----------------------------+---------------+-----------|
   |   | DRAM select 1 wait state   |     SW1/3     |   Open    |
   |---+----------------------------+---------------+-----------|
   |>> | Shadow BIOS ROM disabled   |     SW1/4     |  Closed   |
   |---+----------------------------+---------------+-----------|
   |   | Shadow BIOS ROM enabled    |     SW1/4     |   Open    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   | Size  | Bank 0  |   P-0   | Bank 1  |  P-1   | Bank | Bank |
   |       |         |         |         |        |  2   |  3   |
   |-------+---------+---------+---------+--------+------+------|
   | 512KB |   (4)   |   (2)   |  NONE   |  NONE  | NONE | NONE |
   |       |  44256  |  41256  |         |        |      |      |
   |-------+---------+---------+---------+--------+------+------|
   | 512KB |  NONE   |  NONE   |  NONE   |  NONE  | (2)  | NONE |
   |       |         |         |         |        | 256K |      |
   |       |         |         |         |        | x 9  |      |
   |-------+---------+---------+---------+--------+------+------|
   |  1MB  |   (4)   |   (2)   |   (4)   |  (2)   | NONE | NONE |
   |       |  44256  |  41256  |  44256  | 41256  |      |      |
   |-------+---------+---------+---------+--------+------+------|
   |  1MB  |  NONE   |  NONE   |  NONE   |  NONE  | (2)  | (2)  |
   |       |         |         |         |        | 256K | 256K |
   |       |         |         |         |        | x 9  | x 9  |
   |-------+---------+---------+---------+--------+------+------|
   | 1.5MB |   (4)   |   (2)   |   (4)   |  (2)   | (2)  | NONE |
   |       |  44256  |  41256  |  44256  | 41256  | 256K |      |
   |       |         |         |         |        | x 9  |      |
   |-------+---------+---------+---------+--------+------+------|
   |  2MB  |   (4)   |   (2)   |  NONE   |  NONE  | NONE | NONE |
   |       | 441000  | 411000  |         |        |      |      |
   |-------+---------+---------+---------+--------+------+------|
   |  2MB  |  NONE   |  NONE   |  NONE   |  NONE  | (2)  | NONE |
   |       |         |         |         |        | 1M x |      |
   |       |         |         |         |        |  9   |      |
   |-------+---------+---------+---------+--------+------+------|
   |  3MB  |   (4)   |   (2)   |   (4)   |  (2)   | (2)  | NONE |
   |       |  44256  |  41256  |  44256  | 41256  | 1M x |      |
   |       |         |         |         |        |  9   |      |
   |-------+---------+---------+---------+--------+------+------|
   |  4MB  |   (4)   |   (2)   |   (4)   |  (2)   | NONE | NONE |
   |       | 441000  | 411000  | 441000  | 411000 |      |      |
   |-------+---------+---------+---------+--------+------+------|
   |  4MB  |  NONE   |  NONE   |  NONE   |  NONE  | (2)  | (2)  |
   |       |         |         |         |        | 1M x | 1M x |
   |       |         |         |         |        |  9   |  9   |
   |-------+---------+---------+---------+--------+------+------|
   |  6MB  |   (4)   |   (2)   |   (4)   |  (2)   | (2)  | NONE |
   |       | 441000  | 411000  | 441000  | 411000 | 1M x |      |
   |       |         |         |         |        |  9   |      |
   |-------+---------+---------+---------+--------+------+------|
   |  8MB  |  NONE   |  NONE   |  NONE   |  NONE  | (2)  | NONE |
   |       |         |         |         |        | 4M x |      |
   |       |         |         |         |        |  9   |      |
   |-------+---------+---------+---------+--------+------+------|
   | 16MB  |  NONE   |  NONE   |  NONE   |  NONE  | (2)  | (2)  |
   |       |         |         |         |        | 4M x | 4M x |
   |       |         |         |         |        |  9   |  9   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 DRAM JUMPER CONFIGURATION                  |
   |------------------------------------------------------------|
   |Size |SW1/5 |SW1/6 |SW1/7 |SW1/8 |      J8       |    J9    |
   |-----+------+------+------+------+---------------+----------|
   |512KB| Open |Closed| Open | Open |  pins 2 & 3   |pins 1 & 2|
   |     |      |      |      |      |    closed     |  closed  |
   |-----+------+------+------+------+---------------+----------|
   |512KB| Open |Closed| Open | Open |  pins 1 & 2   |pins 2 & 3|
   |     |      |      |      |      |    closed     |  closed  |
   |-----+------+------+------+------+---------------+----------|
   | 1MB | Open |Closed| Open |Closed|  pins 2 & 3   |pins 1 & 2|
   |     |      |      |      |      |    closed     |  closed  |
   |-----+------+------+------+------+---------------+----------|
   | 1MB | Open |Closed| Open |Closed|  pins 1 & 2   |pins 2 & 3|
   |     |      |      |      |      |    closed     |  closed  |
   |-----+------+------+------+------+---------------+----------|
   |1.5MB| Open | Open |Closed| Open |  pins 2 & 3   |pins 1 & 2|
   |     |      |      |      |      |    closed     |  closed  |
   |-----+------+------+------+------+---------------+----------|
   | 2MB |Closed| Open | Open | Open |  pins 2 & 3   |pins 1 & 2|
   |     |      |      |      |      |    closed     |  closed  |
   |-----+------+------+------+------+---------------+----------|
   | 2MB |Closed| Open | Open | Open |  pins 1 & 2   |pins 2 & 3|
   |     |      |      |      |      |    closed     |  closed  |
   |-----+------+------+------+------+---------------+----------|
   | 3MB | Open |Closed|Closed| Open |  pins 2 & 3   |pins 1 & 2|
   |     |      |      |      |      |    closed     |  closed  |
   |-----+------+------+------+------+---------------+----------|
   | 4MB |Closed| Open | Open |Closed|  pins 2 & 3   |pins 1 & 2|
   |     |      |      |      |      |    closed     |  closed  |
   |-----+------+------+------+------+---------------+----------|
   | 4MB |Closed| Open | Open |Closed|  pins 1 & 2   |pins 2 & 3|
   |     |      |      |      |      |    closed     |  closed  |
   |-----+------+------+------+------+---------------+----------|
   | 6MB |Closed| Open |Closed| Open |  pins 2 & 3   |pins 1 & 2|
   |     |      |      |      |      |    closed     |  closed  |
   |-----+------+------+------+------+---------------+----------|
   | 8MB |Closed|Closed| Open | Open |  pins 2 & 3   |pins 1 & 2|
   |     |      |      |      |      |    closed     |  closed  |
   |-----+------+------+------+------+---------------+----------|
   |16MB |Closed|Closed| Open |Closed|  pins 1 & 2   |pins 2 & 3|
   |     |      |      |      |      |    closed     |  closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     BIOS CONFIGURATION                     |
   |------------------------------------------------------------|
   |       Type       |        J10         |        J12         |
   |------------------+--------------------+--------------------|
   |      27256       | pins 1 & 2 closed  | pins 2 & 3 closed  |
   |------------------+--------------------+--------------------|
   |      27512       |        Open        |       Closed       |
   +------------------------------------------------------------+