DTK COMPUTER, INC.
==================

   KEEN-4000, GRAFIKA 3E, PEM 4000

   Processor          80386DX                                     
   Processor Speed    25/33MHz                                    
   Chip Set           VLSI                                        
   Max. Onboard DRAM  16MB (8MB on external memory card)          
   Cache              None                                        
   BIOS               AMI                                         
   Dimensions         330mm x 218mm                               
   I/O Options        32-bit external memory card slot            
   NPU Options        80387/3167                                  

<gopher://bitreich.org/I/th99/m/C-D/30367-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose       | Location | Purpose              | Location |
   |---------------+----------+----------------------+----------|
   | Power LED &   |    J1    | Speaker              |    J4    |
   | keylock       |          |                      |          |
   |---------------+----------+----------------------+----------|
   | Turbo LED     |    J2    | 32-bit external      |    S1    |
   |               |          | memory card          |          |
   |---------------+----------+----------------------+----------|
   | Reset switch  |    J3    |                      |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |           Function            | Jumper/Switch |  Position  |
   |-------------------------------+---------------+------------|
   |>> | Monitor type select color |     SW1/6     |     On     |
   |---+---------------------------+---------------+------------|
   |   | Monitor type select       |     SW1/6     |    Off     |
   |   | monochrome                |               |            |
   |---+---------------------------+---------------+------------|
   |>> | NPU disabled              |      W1       |   Closed   |
   |---+---------------------------+---------------+------------|
   |   | NPU enabled               |      W1       |    Open    |
   |---+---------------------------+---------------+------------|
   |>> | CPU speed select          |      W6       | Pins 2 & 3 |
   |   | switchable from keyboard  |               |   closed   |
   |---+---------------------------+---------------+------------|
   |   | CPU speed select forced   |      W6       | Pins 1 & 2 |
   |   | slow                      |               |   closed   |
   |---+---------------------------+---------------+------------|
   |   | CPU speed select forced   |      W6       |    Open    |
   |   | fast                      |               |            |
   |---+---------------------------+---------------+------------|
   |>> | BIOS type select 27256    |      W7       | Pins 1 & 2 |
   |   |                           |               |   closed   |
   |---+---------------------------+---------------+------------|
   |   | BIOS type select 27512    |      W7       | Pins 2 & 3 |
   |   |                           |               |   closed   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   |       Size       |       Bank 0       |       Bank 1       |
   |------------------+--------------------+--------------------|
   |       1MB        |    (4) 256K x 9    |        NONE        |
   |------------------+--------------------+--------------------|
   |       2MB        |    (4) 256K x 9    |    (4) 256K x 9    |
   |------------------+--------------------+--------------------|
   |       4MB        |     (4) 1M x 9     |        NONE        |
   |------------------+--------------------+--------------------|
   |       5MB        |    (4) 256K x 9    |     (4) 1M x 9     |
   |------------------+--------------------+--------------------|
   |       8MB        |     (4) 1M x 9     |     (4) 1M x 9     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |              DRAM JUMPER/SWITCH CONFIGURATION              |
   |------------------------------------------------------------|
   | Size | SW1/1 | SW1/2 | SW1/3 | SW1/4 | SW1/5 |  W2  |  W3  |
   |------+-------+-------+-------+-------+-------+------+------|
   | 1MB  |  On   |  On   |  On   |  On   |  On   | 2 &  | 2 &  |
   |      |       |       |       |       |       |  3   |  3   |
   |------+-------+-------+-------+-------+-------+------+------|
   | 2MB  |  On   |  On   |  On   |  On   |  On   | 2 &  | 2 &  |
   |      |       |       |       |       |       |  3   |  3   |
   |------+-------+-------+-------+-------+-------+------+------|
   | 4MB  |  On   |  On   |  Off  |  On   |  Off  | 1 &  | 1 &  |
   |      |       |       |       |       |       |  2   |  2   |
   |------+-------+-------+-------+-------+-------+------+------|
   | 5MB  |  Off  |  On   |  Off  |  Off  |  On   | 2 &  | 1 &  |
   |      |       |       |       |       |       |  3   |  2   |
   |------+-------+-------+-------+-------+-------+------+------|
   | 8MB  |  Off  |  On   |  Off  |  Off  |  Off  | 1 &  | 1 &  |
   |      |       |       |       |       |       |  2   |  2   |
   |------------------------------------------------------------|
   | Note:Pins designated should be in the closed position.     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    CACHE CONFIGURATION                     |
   |------------------------------------------------------------|
   |       Size       |       Bank 0       |        TAG         |
   |------------------+--------------------+--------------------|
   |       64KB       |    (8) 16K x 4     |    (2) 16K x 4     |
   |------------------+--------------------+--------------------|
   |      256KB       |    (8) 64K x 4     |    (2) 64K x 4     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 CACHE JUMPER CONFIGURATION                 |
   |------------------------------------------------------------|
   |       Size       |         W4         |         W5         |
   |------------------+--------------------+--------------------|
   |       64KB       | Pins 1 & 2 closed  | Pins 1 & 2 closed  |
   |------------------+--------------------+--------------------|
   |      256KB       | Pins 2 & 3 closed  | Pins 2 & 3 closed  |
   +------------------------------------------------------------+