(TXT) View Source
       
       # PRECISION AMERICA, INC.
       
          SUPER 486 REV: D2
       
          Processor         80486SX/80486DX                              
          Processor Speed   20/25/33MHz                                  
          Chip Set          Unidentified                                 
          Max. Onboard DRAM 32MB                                         
          Cache             64/128/256/1024KB                            
          BIOS              AM/MR/Phoenix                                
          Dimensions        330mm x 218mm                                
          I/O Options       None                                         
          NPU Options       4167                                         
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose             | Location | Purpose        | Location |
          |---------------------+----------+----------------+----------|
          | Speaker             |   JP1    | Turbo switch   |   JP10   |
          |---------------------+----------+----------------+----------|
          | Reset switch        |   JP2    | Turbo LED      |   JP11   |
          |---------------------+----------+----------------+----------|
          | Power LED & keylock |   JP5    |                |          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |               Function               | Jumper |  Position  |
          |--------------------------------------+--------+------------|
          | » | Factory configured - do not      |  JP3   | Pins 2 & 3 |
          |   | alter                            |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | Monitor type select              |  JP6   |    Open    |
          |   | monochrome/EGA                   |        |            |
          |---+----------------------------------+--------+------------|
          |   | Monitor type select color        |  JP6   |   Closed   |
          |---+----------------------------------+--------+------------|
          |   | CPU frequency select 1x          |  JP27  |   Closed   |
          |---+----------------------------------+--------+------------|
          |   | CPU frequency select 2x          |  JP27  |    Open    |
          |---+----------------------------------+--------+------------|
          |   | Wait state select 0 wait states  |  JP32  |   Closed   |
          |---+----------------------------------+--------+------------|
          |   | Wait state select 1 wait state   |  JP32  |    Open    |
          |---+----------------------------------+--------+------------|
          | » | Factory configured - do not      |  JP33  | Pins 2 & 3 |
          |   | alter                            |        |   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) 256K x 9    |     (4) 4M x 9     |
          |------------------+--------------------+--------------------|
          |       17MB       |     (4) 4M x 9     |    (4) 256K x 9    |
          |------------------+--------------------+--------------------|
          |       20MB       |     (4) 1M x 9     |     (4) 4M x 9     |
          |------------------+--------------------+--------------------|
          |       20MB       |     (4) 4M x 9     |     (4) 1M 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  |
          |------------+---------------+---------------+---------------|
          |    1MB     | (4) 128K x 8  | (4) 128K x 8  | (1) 128K x 8  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 CACHE JUMPER CONFIGURATION                 |
          |------------------------------------------------------------|
          |   Size   |   JP22   |   JP23   |  JP24  |  JP25  |  JP26   |
          |----------+----------+----------+--------+--------+---------|
          |   64KB   |  1 & 2   |  1 & 2   | 1 & 2  | 1 & 2  |  Open   |
          |----------+----------+----------+--------+--------+---------|
          |  128KB   |  2 & 3   |  1 & 2   | 1 & 2  | 1 & 2  | Closed  |
          |----------+----------+----------+--------+--------+---------|
          |  256KB   |  2 & 3   |  2 & 3   | 1 & 2  | 1 & 2  |  Open   |
          |----------+----------+----------+--------+--------+---------|
          |   1MB    |  2 & 3   |  2 & 3   | 2 & 3  | 2 & 3  |  Open   |
          |------------------------------------------------------------|
          | Note: Pins designated should be in the closed position.    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |             CACHE JUMPER CONFIGURATION (CON’T)             |
          |------------------------------------------------------------|
          |   Size   |   JP28   |   JP34   |  JP35   |  JP36  |  JP37  |
          |----------+----------+----------+---------+--------+--------|
          |   64KB   |  Closed  |  1 & 2   |  2 & 3  | 2 & 3  | 2 & 3  |
          |----------+----------+----------+---------+--------+--------|
          |  128KB   |   Open   |   Open   |  1 & 2  | 1 & 2  | 1 & 2  |
          |----------+----------+----------+---------+--------+--------|
          |  256KB   |  Closed  |  2 & 3   |  2 & 3  | 2 & 3  | 2 & 3  |
          |----------+----------+----------+---------+--------+--------|
          |   1MB    |  Closed  |  2 & 3   |  2 & 3  | 2 & 3  | 2 & 3  |
          |------------------------------------------------------------|
          | Note: Pins designated should be in the closed position.    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |             CACHE JUMPER CONFIGURATION (CON’T)             |
          |------------------------------------------------------------|
          |   Size   |   JP38   |  JP39   |  JP40   |  JP41   |  JP42  |
          |----------+----------+---------+---------+---------+--------|
          |   64KB   |   Open   |  2 & 3  |  2 & 3  |  Open   | 2 & 3  |
          |----------+----------+---------+---------+---------+--------|
          |  128KB   |  Closed  |  Open   |  1 & 2  | Closed  | 2 & 3  |
          |----------+----------+---------+---------+---------+--------|
          |  256KB   |   Open   |  2 & 3  |  2 & 3  |  Open   | 2 & 3  |
          |----------+----------+---------+---------+---------+--------|
          |   1MB    |   Open   |  2 & 3  |  2 & 3  |  Open   | 2 & 3  |
          |------------------------------------------------------------|
          | Note: Pins designated should be in the closed position.    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   CPU TYPE CONFIGURATION                   |
          |------------------------------------------------------------|
          |     Type     |    J12     |       JP13        |    JP14    |
          |--------------+------------+-------------------+------------|
          |   80486SX    |    Open    | Pins 2 & 3 closed |    Open    |
          |--------------+------------+-------------------+------------|
          |   80486DX    |   Closed   | Pins 1 & 2 closed |   Closed   |
          +------------------------------------------------------------+