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

   PEM-2530

   Processor          80386DX                                     
   Processor Speed    25MHz                                       
   Chip Set           VLSI                                        
   Max. Onboard DRAM  16MB (8MB on external memory card)          
   Cache              None                                        
   BIOS               DTK/Phoenix                                 
   Dimensions         333mm x 222mm                               
   I/O Options        32-bit external memory card slot (PEI-306)  
   NPU Options        80387/3167                                  

<gopher://bitreich.org/I/th99/m/C-D/30059-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose       | Location | Purpose              | Location |
   |---------------+----------+----------------------+----------|
   | Power LED &   |    J1    | 32-bit external      |    S1    |
   | keylock       |          | memory card          |          |
   |---------------+----------+----------------------+----------|
   | Reset switch  |    J2    | Turbo switch         |    W4    |
   |---------------+----------+----------------------+----------|
   | Speaker       |    J3    | Turbo LED            |    W5    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |               Function               | Jumper |  Position  |
   |--------------------------------------+--------+------------|
   |>> | DRAM (16-bit) speed select 2     |   W2   | pins 2 & 3 |
   |   | wait state                       |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | DRAM (16-bit) speed select 1     |   W2   | pins 1 & 2 |
   |   | wait state                       |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | DRAM (8-bit) speed select 5 wait |   W3   | pins 2 & 3 |
   |   | state                            |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | DRAM (8-bit) speed select 4 wait |   W3   | pins 1 & 2 |
   |   | state                            |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | CPU speed select fast            |   W4   |    Open    |
   |---+----------------------------------+--------+------------|
   |   | CPU speed select slow            |   W4   | pins 1 & 2 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | CPU speed switchable from        |   W4   | pins 2 & 3 |
   |   | keyboard                         |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | Monitor type select monochrome   |   W6   | pins 1 & 2 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | Monitor type select color        |   W6   | pins 2 & 3 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | NPU disabled                     |   W7   | pins 2 & 3 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | NPU enabled                      |   W7   | pins 1 & 2 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | BIOS type select 27256           |   W8   | pins 1 & 2 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | BIOS type select 27512           |   W8   | pins 2 & 3 |
   |   |                                  |        |   closed   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   |     Size     |        Bank 0         |       Bank 1        |
   |--------------+-----------------------+---------------------|
   |     1MB      |     (2) 256K x 9      |    (2) 256K x 9     |
   |--------------+-----------------------+---------------------|
   |     2MB      |     (2) 512K x 9      |    (2) 512K x 9     |
   |--------------+-----------------------+---------------------|
   |     4MB      |      (2) 1M x 9       |     (2) 1M x 9      |
   |--------------+-----------------------+---------------------|
   |     8MB      |      (1) 1M x 36      |     (1) 1M x 36     |
   |------------------------------------------------------------|
   | Note:The 1M x 36 SIPPs are a proprietary DTK design that   |
   | use two SIPP sockets.                                      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |              DRAM JUMPER/SWITCH CONFIGURATION              |
   |------------------------------------------------------------|
   | Size  | SW1/1  | SW1/2 | SW1/3 | SW1/4 |        W1         |
   |-------+--------+-------+-------+-------+-------------------|
   |  1MB  |   On   |  On   |  On   |  On   | pins 2 & 3 closed |
   |-------+--------+-------+-------+-------+-------------------|
   |  2MB  |   On   |  Off  |  On   |  On   | pins 2 & 3 closed |
   |-------+--------+-------+-------+-------+-------------------|
   |  4MB  |  Off   |  On   |  On   |  Off  | pins 1 & 2 closed |
   |-------+--------+-------+-------+-------+-------------------|
   |  8MB  |  Off   |  Off  |  Off  |  On   | pins 1 & 2 closed |
   +------------------------------------------------------------+