(TXT) View Source
       
       # DTK COMPUTER, INC.
       
          PKM-0037Y (VER. 1.01)
       
          Processor         80486SX/80487SX80486DX/ODP486SX/80486DX2     
          Processor Speed   20/25/33/50 (Internal)/50/66 (Internal)MHz   
          Chip Set          Symphony                                     
          Max. onboard DRAM 32MB                                         
          Cache             64/128/256KB                                 
          BIOS              AMI/DTK                                      
          Dimensions        229mm x 221mm                                
          I/O Options       None                                         
          NPU Options       None                                         
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose             | Location | Purpose        | Location |
          |---------------------+----------+----------------+----------|
          | Power LED & keylock |    J1    | Reset switch   |    J4    |
          |---------------------+----------+----------------+----------|
          | Speaker             |    J2    | Turbo LED      |    J5    |
          |---------------------+----------+----------------+----------|
          | Turbo LED           |    J3    |                |          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |           Function            | Jumper/Switch |  Position  |
          |-------------------------------+---------------+------------|
          | » | Monitor type select       |      J8       | pins 1 & 2 |
          |   | monochrome                |               |   closed   |
          |---+---------------------------+---------------+------------|
          |   | Monitor type select color |      J8       | pins 2 & 3 |
          |   |                           |               |   closed   |
          |---+---------------------------+---------------+------------|
          | » | Cache write wait state    |      J9       |   Closed   |
          |   | select 0 wait states      |               |            |
          |---+---------------------------+---------------+------------|
          |   | Cache write wait state    |      J9       |    Open    |
          |   | select 1 wait state       |               |            |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     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     |
          |------------------+--------------------+--------------------|
          |       16MB       |     (4) 4M x 9     |        NONE        |
          |------------------+--------------------+--------------------|
          |       17MB       |    (4) 256K x 9    |     (4) 4M 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     |    Bank 1     |      TAG      |
          |------------+---------------+---------------+---------------|
          |    64KB    |  (4) 8K x 8   |  (4) 8K x 8   |  (1) 8K x 8   |
          |------------+---------------+---------------+---------------|
          |   128KB    |  (4) 32K x 8  |     NONE      |  (1) 32K x 8  |
          |------------+---------------+---------------+---------------|
          |   256KB    |  (4) 32K x 8  |  (4) 32K x 8  |  (1) 32K x 8  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 CACHE JUMPER CONFIGURATION                 |
          |------------------------------------------------------------|
          | Size  | J14  | J15  | J16  | J17  | J18  | J19 | J20 | J21 |
          |-------+------+------+------+------+------+-----+-----+-----|
          | 64KB  | 1 &  | 1 &  | 1 &  | 1 &  | 1 &  | 1 & | 1 & | 1 & |
          |       |  2   |  2   |  2   |  2   |  2   |  2  |  2  |  2  |
          |-------+------+------+------+------+------+-----+-----+-----|
          | 128KB | 2 &  | 1 &  | 1 &  | 2 &  | 2 &  | 2 & | 2 & | 2 & |
          |       |  3   |  2   |  2   |  3   |  3   |  3  |  3  |  3  |
          |-------+------+------+------+------+------+-----+-----+-----|
          | 256KB | 2 &  | 2 &  | 2 &  | 1 &  | 1 &  | 1 & | 1 & | 1 & |
          |       |  3   |  3   |  3   |  2   |  2   |  2  |  2  |  2  |
          |------------------------------------------------------------|
          | Note:Pins designated should be in the closed position.     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  CPU SPEED CONFIGURATION                   |
          |------------------------------------------------------------|
          |  Speed   |   J7    |   J10   |        J12        |   J13   |
          |----------+---------+---------+-------------------+---------|
          |  20MHz   |  Open   |  Open   | pins 1 & 2 closed |  Open   |
          |----------+---------+---------+-------------------+---------|
          |  25Mhz   |  Open   |  Open   | pins 1 & 2 closed |  Open   |
          |----------+---------+---------+-------------------+---------|
          |  33Mhz   |  Open   |  Open   | pins 1 & 2 closed |  Open   |
          |----------+---------+---------+-------------------+---------|
          | 50i MHz  | Closed  |  Open   | pins 1 & 2 closed |  Open   |
          |----------+---------+---------+-------------------+---------|
          |  50MHz   | Closed  | Closed  | pins 2 & 3 closed | Closed  |
          |----------+---------+---------+-------------------+---------|
          | 66i MHz  |  Open   |  Open   | pins 1 & 2 closed |  Open   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   CPU TYPE CONFIGURATION                   |
          |------------------------------------------------------------|
          |   Type   |   J6   |     J11      |    J30     |    J31     |
          |----------+--------+--------------+------------+------------|
          | 80486SX  | Closed |     Open     | pins 2 & 3 |    Open    |
          |   PGA    |        |              |   closed   |            |
          |----------+--------+--------------+------------+------------|
          | 80486SX  |  Open  |     Open     | pins 1 & 2 |    Open    |
          |   PQFP   |        |              |   closed   |            |
          |----------+--------+--------------+------------+------------|
          | 80487SX  | Closed |  pins 2 & 3  | pins 1 & 2 | pins 2 & 3 |
          |   PGA    |        |    closed    |   closed   |   closed   |
          |----------+--------+--------------+------------+------------|
          | 80486DX  | Closed |  pins 1 & 2  | pins 1 & 2 | pins 1 & 2 |
          |   PGA    |        |    closed    |   closed   |   closed   |
          |----------+--------+--------------+------------+------------|
          | ODP486SX | Closed |  pins 1 & 2  | pins 1 & 2 | pins 1 & 2 |
          |   PGA    |        |    closed    |   closed   |   closed   |
          |----------+--------+--------------+------------+------------|
          | 80486DX2 | Closed |  pins 1 & 2  | pins 1 & 2 | pins 1 & 2 |
          |   PGA    |        |    closed    |   closed   |   closed   |
          +------------------------------------------------------------+