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

   PKM-0031Y (VER. 1.00)

   Processor          80486SX/80487SX/80486DX/ODP486SX/80486DX2   
   Processor Speed    16/20/25/33/50(internal)/50/66(internal)MHz 
   Chip Set           Symphony                                    
   Max. Onboard DRAM  32MB                                        
   Cache              64/256KB                                    
   BIOS               AMI/DTK                                     
   Dimensions         330mm x 222mm                               
   I/O Options        None                                        
   NPU Options        None                                        

<gopher://bitreich.org/I/th99/m/C-D/31042-1.png>
   

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

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |               Function               | Jumper |  Position  |
   |--------------------------------------+--------+------------|
   |>> | CPU speed select forced high     |   J2   |    Open    |
   |---+----------------------------------+--------+------------|
   |   | CPU speed select switchable at   |   J2   | pins 2 & 3 |
   |   | keyboard                         |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | Cache write select 0 wait states |   J9   |   Closed   |
   |---+----------------------------------+--------+------------|
   |   | Cache write select 1 wait state  |   J9   |    Open    |
   |---+----------------------------------+--------+------------|
   |>> | Monitor type select monochrome   |  J13   | pins 1 & 2 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | Monitor type select color        |  J13   | 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     |
   |------------------+--------------------+--------------------|
   |       5MB        |     (4) 1M x 9     |    (4) 256K x 9    |
   |------------------+--------------------+--------------------|
   |       8MB        |     (4) 1M x 9     |     (4) 1M x 9     |
   |------------------+--------------------+--------------------|
   |       16MB       |     (4) 4M x 9     |        NONE        |
   |------------------+--------------------+--------------------|
   |       17MB       |     (4) 4M x 9     |    (4) 256K x 9    |
   |------------------+--------------------+--------------------|
   |       17MB       |    (4) 256K x 9    |     (4) 4M x 9     |
   |------------------+--------------------+--------------------|
   |       20MB       |     (4) 4M x 9     |     (4) 1M x 9     |
   |------------------+--------------------+--------------------|
   |       20MB       |     (4) 1M x 9     |     (4) 4M x 9     |
   |------------------+--------------------+--------------------|
   |       32MB       |     (4) 4M x 9     |     (4) 4M x 9     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    CACHE CONFIGURATION                     |
   |------------------------------------------------------------|
   |       Size       |       Bank 0       |        TAG         |
   |------------------+--------------------+--------------------|
   |       64KB       |     (8) 8K x 8     |     (1) 8K x 8     |
   |------------------+--------------------+--------------------|
   |      256KB       |    (8) 32K x 8     |    (1) 32K x 8     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 CACHE JUMPER CONFIGURATION                 |
   |------------------------------------------------------------|
   | Size  |       J6        |       J7        |       J8       |
   |-------+-----------------+-----------------+----------------|
   | 64KB  |   pins 1 & 2    |   pins 1 & 2    |   pins 1 & 2   |
   |       |     closed      |     closed      |     closed     |
   |-------+-----------------+-----------------+----------------|
   | 256KB |   pins 2 & 3    |   pins 2 & 3    |   pins 2 & 3   |
   |       |     closed      |     closed      |     closed     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   CPU TYPE CONFIGURATION                   |
   |------------------------------------------------------------|
   |     Type     |    J10     |        J11        |    J12     |
   |--------------+------------+-------------------+------------|
   |   80486SX    |    Open    | pins 2 & 3 closed |    Open    |
   |--------------+------------+-------------------+------------|
   |   80486DX    |   Closed   | pins 1 & 2 closed |   Closed   |
   |--------------+------------+-------------------+------------|
   |   80486DX2   |   Closed   | pins 1 & 2 closed |   Closed   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  CPU SPEED CONFIGURATION                   |
   |------------------------------------------------------------|
   |  Speed   |   J14    |   J15    |  J16   |  J17   |   J18   |
   |----------+----------+----------+--------+--------+---------|
   |  16MHz   |  Closed  |   Open   |  Open  | 1 & 2  |  Open   |
   |----------+----------+----------+--------+--------+---------|
   |  20MHz   |  Closed  |   Open   |  Open  | 1 & 2  |  Open   |
   |----------+----------+----------+--------+--------+---------|
   |  25MHz   |  Closed  |   Open   |  Open  | 1 & 2  |  Open   |
   |----------+----------+----------+--------+--------+---------|
   |  33MHz   |  Closed  |   Open   |  Open  | 1 & 2  |  Open   |
   |----------+----------+----------+--------+--------+---------|
   |  50iMHz  |  Closed  |   Open   |  Open  | 1 & 2  |  Open   |
   |----------+----------+----------+--------+--------+---------|
   |  50MHz   |   Open   |  Closed  |  Open  | 2 & 3  | Closed  |
   |----------+----------+----------+--------+--------+---------|
   |  66iMHz  |  Closed  |   Open   |  Open  | 1 & 2  |  Open   |
   |------------------------------------------------------------|
   | Note: Pins designated should be in the closed position.    |
   +------------------------------------------------------------+