MICRO COMPUTER SYSTEMS CORPORATION
==================================

   V-286

   Processor         80286                                        
   Processor Speed   12MHz                                        
   Chip Set          VLSI                                         
   Max. Onboard DRAM 4MB                                          
   Cache             None                                         
   BIOS              AMI                                          
   Dimensions        330mm x 218mm                                
   I/O Options       None                                         
   NPU Options       80287                                        

<gopher://bitreich.org/I/th99/m/M-O/32806-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose        | Location | Purpose             | Location |
   |----------------+----------+---------------------+----------|
   | Reset switch   |    W6    | Speaker             |   W15    |
   |----------------+----------+---------------------+----------|
   | Turbo LED      |    W7    | External battery    |   W16    |
   |----------------+----------+---------------------+----------|
   | Turbo switch   |   W11    | Power LED & keylock |   W18    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |           Function            | Jumper/Switch |  Position  |
   |-------------------------------+---------------+------------|
   |>> | Zero wait state enabled   |     SW1/1     |    Off     |
   |---+---------------------------+---------------+------------|
   |   | Zero wait state disabled  |     SW1/1     |     On     |
   |---+---------------------------+---------------+------------|
   |>> | Keyboard controlled speed |     SW1/2     |     On     |
   |   | switch enabled            |               |            |
   |---+---------------------------+---------------+------------|
   |   | Keyboard controlled speed |     SW1/2     |    Off     |
   |   | switch disabled           |               |            |
   |---+---------------------------+---------------+------------|
   |>> | Monitor type select color |     SW1/3     |    Off     |
   |---+---------------------------+---------------+------------|
   |   | Monitor type select       |     SW1/3     |     On     |
   |   | monochrome                |               |            |
   |---+---------------------------+---------------+------------|
   |>> | NPU clock speed select    |     SW1/4     |     On     |
   |   | 7.159MHz                  |               |            |
   |---+---------------------------+---------------+------------|
   |   | NPU clock speed select    |     SW1/4     |    Off     |
   |   | 14.318MHz                 |               |            |
   |---+---------------------------+---------------+------------|
   |>> | Fastmode enabled          |     SW1/5     |     On     |
   |---+---------------------------+---------------+------------|
   |   | Fastmode disabled         |     SW1/5     |    Off     |
   |---+---------------------------+---------------+------------|
   |>> | ROM wait state select 2   |     SW1/6     |     On     |
   |   | wait states               |               |            |
   |---+---------------------------+---------------+------------|
   |   | ROM wait state select 1   |     SW1/6     |    Off     |
   |   | wait state                |               |            |
   |---+---------------------------+---------------+------------|
   |>> | Factory configured - do   |     SW1/7     |    Off     |
   |   | not alter                 |               |            |
   |---+---------------------------+---------------+------------|
   |>> | AT bus speed select 6MHz  |     SW1/8     |     On     |
   |---+---------------------------+---------------+------------|
   |   | AT bus speed select 8MHz  |     SW1/8     |    Off     |
   |---+---------------------------+---------------+------------|
   |>> | Factory configured - do   |      W8       |   Closed   |
   |   | not alter                 |               |            |
   |---+---------------------------+---------------+------------|
   |>> | BIOS type select 27256    |      W9       | pins 2 & 3 |
   |   |                           |               |   closed   |
   |---+---------------------------+---------------+------------|
   |   | BIOS type select 27128    |      W9       | pins 1 & 2 |
   |   |                           |               |   closed   |
   |---+---------------------------+---------------+------------|
   |>> | Battery type select       |      W12      | pins 1 & 2 |
   |   | internal                  |               |   closed   |
   |---+---------------------------+---------------+------------|
   |   | Battery type select       |      W12      | pins 2 & 3 |
   |   | external                  |               |   closed   |
   |---+---------------------------+---------------+------------|
   |>> | Parity enabled            |      W13      | pins 2 & 3 |
   |   |                           |               |   closed   |
   |---+---------------------------+---------------+------------|
   |   | Parity disabled           |      W13      | pins 1 & 2 |
   |   |                           |               |   closed   |
   |------------------------------------------------------------|
   | Note: The locations of W12 & W13 are unidentified.         |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   | Size  | Bank 0 | Parity | Bank 1 | Parity | Bank 2 | Bank  |
   |       |        |   0    |        |   1    |        |   3   |
   |-------+--------+--------+--------+--------+--------+-------|
   | 512KB |  (16)  |  (2)   |  NONE  |  NONE  |  NONE  | NONE  |
   |       | 41256  | 41256  |        |        |        |       |
   |-------+--------+--------+--------+--------+--------+-------|
   | 640KB |  (16)  |  (2)   |  (16)  |  (2)   |  NONE  | NONE  |
   |       | 41256  | 41256  |  4164  |  4164  |        |       |
   |-------+--------+--------+--------+--------+--------+-------|
   | 640KB |  (16)  |  (2)   |  NONE  |  (2)   |  (4)   | NONE  |
   |       | 41256  | 41256  |        |  4164  | 44256  |       |
   |-------+--------+--------+--------+--------+--------+-------|
   |  1MB  |  (16)  |  (2)   |  (16)  |  (2)   |  NONE  | NONE  |
   |       | 41256  | 41256  | 41256  | 41256  |        |       |
   |-------+--------+--------+--------+--------+--------+-------|
   |  1MB  |  NONE  |  (2)   |  NONE  |  (2)   |  (4)   |  (4)  |
   |       |        | 41256  |        | 41256  | 44256  | 44256 |
   |-------+--------+--------+--------+--------+--------+-------|
   |  2MB  |  (16)  |  (2)   |  NONE  |  NONE  |  NONE  | NONE  |
   |       | 411000 | 411000 |        |        |        |       |
   |-------+--------+--------+--------+--------+--------+-------|
   |  4MB  |  (16)  |  (2)   |  (16)  |  (2)   |  NONE  | NONE  |
   |       | 411000 | 411000 | 411000 | 411000 |        |       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 DRAM JUMPER CONFIGURATION                  |
   |------------------------------------------------------------|
   |     Size     |      W1       |      W2      |      W3      |
   |--------------+---------------+--------------+--------------|
   |    512KB     |    Closed     |    Closed    |    Closed    |
   |--------------+---------------+--------------+--------------|
   |    640KB     |    Closed     |    Closed    |     Open     |
   |--------------+---------------+--------------+--------------|
   |    640KB     |    Closed     |    Closed    |     Open     |
   |--------------+---------------+--------------+--------------|
   |     1MB      |     Open      |    Closed    |    Closed    |
   |--------------+---------------+--------------+--------------|
   |     1MB      |     Open      |    Closed    |    Closed    |
   |--------------+---------------+--------------+--------------|
   |     2MB      |     Open      |    Closed    |     Open     |
   |--------------+---------------+--------------+--------------|
   |     4MB      |    Closed     |     Open     |    Closed    |
   +------------------------------------------------------------+