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       # PROLINK COMPUTER, INC.
       
          P386SX-16/20C OPTI (REV. D)
       
          Processor              80386SX                                 
          Processor Speed        16/20MHz                                
          Chip Set               OPTI                                    
          Video Chip Set         None                                    
          Maximum Onboard Memory 8MB                                     
          Maximum Video Memory   None                                    
          Cache                  32KB                                    
          BIOS                   AMI                                     
          Dimensions             330mm x 220mm                           
          I/O Options            None                                    
          NPU Options            80387SX                                 
       
   IMG IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose              | Location | Purpose       | Location |
          |----------------------+----------+---------------+----------|
          | External battery     |    J1    | Turbo LED     |   JP8    |
          |----------------------+----------+---------------+----------|
          | Speaker              |   J21    | Reset switch  |    S2    |
          |----------------------+----------+---------------+----------|
          | External memory card |   J22    | Turbo switch  |    S3    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |               Function               |  Label  | Position  |
          |--------------------------------------+---------+-----------|
          |   | Monitor type select color        |   JP2   |  Closed   |
          |---+----------------------------------+---------+-----------|
          |   | Monitor type select monochrome   |   JP2   |   Open    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DRAM CONFIGURATION                     |
          |------------------------------------------------------------|
          | Size  |   Bank 0    |   Bank 1   |   Bank 2   |   Bank 3   |
          |-------+-------------+------------+------------+------------|
          | 512KB | (2) 256K x  |    None    |    None    |    None    |
          |       |      9      |            |            |            |
          |-------+-------------+------------+------------+------------|
          |  1MB  | (2) 256K x  | (2) 256K x |    None    |    None    |
          |       |      9      |     9      |            |            |
          |-------+-------------+------------+------------+------------|
          |  2MB  | (2) 256K x  | (2) 256K x | (2) 256K x | (2) 256K x |
          |       |      9      |     9      |     9      |     9      |
          |-------+-------------+------------+------------+------------|
          |  3MB  | (2) 256K x  | (2) 256K x | (2) 1M x 9 |    None    |
          |       |      9      |     9      |            |            |
          |-------+-------------+------------+------------+------------|
          |  4MB  | (2) 1M x 9  | (2) 1M x 9 |    None    |    None    |
          |-------+-------------+------------+------------+------------|
          |  5MB  | (2) 256K x  | (2) 256K x | (2) 1M x 9 | (2) 1M x 9 |
          |       |      9      |     9      |            |            |
          |-------+-------------+------------+------------+------------|
          |  6MB  | (2) 1M x 9  | (2) 1M x 9 | (2) 1M x 9 |    None    |
          |-------+-------------+------------+------------+------------|
          |  8MB  | (2) 1M x 9  | (2) 1M x 9 | (2) 1M x 9 | (2) 1M x 9 |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    CACHE CONFIGURATION                     |
          |------------------------------------------------------------|
          |       Size       |       Bank 0       |        TAG         |
          |------------------+--------------------+--------------------|
          |       32KB       |     (4) 8K x 8     |    (2) 16K x 4     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    CPU SPEED SELECTION                     |
          |------------------------------------------------------------|
          |           Speed            |              JS               |
          |----------------------------+-------------------------------|
          |           16MHz            |       Pins 2 & 3 closed       |
          |----------------------------+-------------------------------|
          |           20MHz            |       Pins 1 & 2 closed       |
          +------------------------------------------------------------+