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                                 

<gopher://bitreich.org/I/th99/m/P-R/33632-1.png>
   

   +------------------------------------------------------------+
   |                        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       |
   +------------------------------------------------------------+