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

   PA286

   Processor             80286                                    
   Processor Speed       12/16MHz                                 
   Chip Set              Peaktron                                 
   Max. Onboard DRAM     4MB                                      
   Cache                 None                                     
   BIOS                  AMI                                      
   Dimensions            330mm x 220mm                            
   I/O Options           None                                     
   NPU Options           80287                                    

<gopher://bitreich.org/I/th99/m/P-R/30308-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose           | Location | Purpose          | Location |
   |-------------------+----------+------------------+----------|
   | Turbo LED         |    J1    | Speaker          |   J12    |
   |-------------------+----------+------------------+----------|
   | Reset switch      |    J2    | Turbo switch     |   J13    |
   |-------------------+----------+------------------+----------|
   | Power LED &       |    J9    | External battery |   JP1    |
   | keylock           |          |                  |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |               Function               | Jumper |  Position  |
   |--------------------------------------+--------+------------|
   |>> | NPU mode select synchronous with |   J3   | pins 2 & 3 |
   |   | CPU                              |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | NPU mode select asynchronous     |   J3   | pins 1 & 2 |
   |   | with CPU                         |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | Parity check enabled             |   J4   |   Closed   |
   |---+----------------------------------+--------+------------|
   |   | Parity check disabled            |   J4   |    Open    |
   |---+----------------------------------+--------+------------|
   |>> | Shadow BIOS ROM enabled          |   J5   |    Open    |
   |---+----------------------------------+--------+------------|
   |   | Shadow BIOS ROM disabled         |   J5   |   Closed   |
   |---+----------------------------------+--------+------------|
   |>> | DRAM select 0 wait states        |   J7   |   Closed   |
   |---+----------------------------------+--------+------------|
   |   | DRAM select 1 wait state         |   J7   |    Open    |
   |---+----------------------------------+--------+------------|
   |>> | Bus speed select ATCLK/2         |   J8   |    Open    |
   |---+----------------------------------+--------+------------|
   |   | Bus speed select ATCLK/3         |   J8   |   Closed   |
   |---+----------------------------------+--------+------------|
   |>> | CPU speed select switchable at   |  J14   |    Open    |
   |   | turbo switch                     |        |            |
   |---+----------------------------------+--------+------------|
   |   | CPU speed select switchable at   |  J14   | pins 1 & 2 |
   |   | keyboard                         |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | Monitor type select monochrome   |  J15   |    Open    |
   |---+----------------------------------+--------+------------|
   |   | Monitor type select color        |  J15   |   Closed   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   |   Size   |   Bank 0    |   Bank 1    |  Bank 2  |  Bank 3  |
   |----------+-------------+-------------+----------+----------|
   |  512KB   |  (4) 44256  |    NONE     |   NONE   |   NONE   |
   |----------+-------------+-------------+----------+----------|
   |   1MB    |  (4) 44256  |  (4) 44256  |   NONE   |   NONE   |
   |----------+-------------+-------------+----------+----------|
   |   2MB    |    NONE     |    NONE     |   (16)   |   NONE   |
   |          |             |             |  441000  |          |
   |----------+-------------+-------------+----------+----------|
   |   4MB    |    NONE     |    NONE     |   (16)   |   (16)   |
   |          |             |             |  441000  |  441000  |
   |------------------------------------------------------------|
   | Note: Bank 0 = U65, U69, U74, U78, Bank 1 = U39, U43, U50, |
   | U54, Bank 2 = U65 - U72, U74 - U81, Bank 3 = U39 - U46,    |
   | U50 - U57                                                  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 DRAM PARITY CONFIGURATION                  |
   |------------------------------------------------------------|
   |  Size  |    U38     |    U49     |    U64     |    U73     |
   |--------+------------+------------+------------+------------|
   | 512KB  |    NONE    |    NONE    | (1) 41256  | (1) 41256  |
   |--------+------------+------------+------------+------------|
   |  1MB   | (1) 41256  | (1) 41256  | (1) 41256  | (1) 41256  |
   |--------+------------+------------+------------+------------|
   |  2MB   |    NONE    |    NONE    | (1) 411000 | (1) 411000 |
   |--------+------------+------------+------------+------------|
   |  4MB   | (1) 411000 | (1) 411000 | (1) 411000 | (1) 411000 |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 DRAM JUMPER CONFIGURATION                  |
   |------------------------------------------------------------|
   |       Size        |        J6         |        J10         |
   |-------------------+-------------------+--------------------|
   |       512KB       |       Open        | pins 2 & 3 closed  |
   |-------------------+-------------------+--------------------|
   |        1MB        |       Open        | pins 2 & 3 closed  |
   |-------------------+-------------------+--------------------|
   |        2MB        |      Closed       | pins 1 & 2 closed  |
   |-------------------+-------------------+--------------------|
   |        4MB        |      Closed       | pins 1 & 2 closed  |
   +------------------------------------------------------------+