SOFTSYS COMPUTER CENTERS, INC.
==============================

   80386SX

   Processor          80386SX                                     
   Processor Speed    8/16MHz                                     
   Chip Set           C & T NEAT                                  
   Max. Onboard DRAM  8MB                                         
   SRAM Cache         None                                        
   BIOS               AMI                                         
   Dimensions         330mm x 218mm                               
   I/O Options        None                                        
   NPU Options        80387SX                                     

<gopher://bitreich.org/I/th99/m/S-T/31277-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose          | Location | Purpose           | Location |
   |------------------+----------+-------------------+----------|
   | Power LED &      |    J1    | Turbo LED         |    J5    |
   | keylock          |          |                   |          |
   |------------------+----------+-------------------+----------|
   | Speaker          |    J2    | External battery  |    J6    |
   |------------------+----------+-------------------+----------|
   | Turbo switch     |    J3    | Auxiliary         |    J7    |
   |                  |          | keyboard          |          |
   |------------------+----------+-------------------+----------|
   | Reset switch     |    J4    |                   |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |               Function               | Jumper |  Position  |
   |--------------------------------------+--------+------------|
   |>> | NPU mode select synchronous with |  JP4   |    open    |
   |   | CPU                              |        |            |
   |   |                                  |  JP6   | pins 2 & 3 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | NPU mode select asynchronous     |  JP4   |   closed   |
   |   | with CPU                         |        |            |
   |   |                                  |  JP6   | pins 1 & 2 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | NPU enabled                      |  JP5   |   closed   |
   |---+----------------------------------+--------+------------|
   |   | NPU disabled                     |  JP5   |    open    |
   |---+----------------------------------+--------+------------|
   |>> | BIOS ROM type select 27256       |  JP7   | pins 1 & 2 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | BIOS ROM type select 27512       |  JP7   | pins 2 & 3 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | Monitor type select monochrome   |  JP8   | pins 2 & 3 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | Monitor type select color        |  JP8   | pins 1 & 2 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | 8042 switch CPU speed select pin |  JP9   | pins 1 & 2 |
   |   | 23                               |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | 8042 switch CPU speed select pin |  JP9   | pins 2 & 3 |
   |   | 30                               |        |   closed   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   |    Size    |    Bank     |  Bank 1   |  Bank 2  |  Bank 3  |
   |            |   0(SIMM)   |  (SIMM)   |  (DIP)   |  (DIP)   |
   |------------+-------------+-----------+----------+----------|
   |  512KB 1   | (2) 256K x  |   NONE    |   NONE   |   NONE   |
   |            |      9      |           |          |          |
   |------------+-------------+-----------+----------+----------|
   |  512KB 2   |    NONE     |   NONE    |   (18)   |   NONE   |
   |            |             |           |  41256   |          |
   |------------+-------------+-----------+----------+----------|
   |   1MB 1    | (2) 256K x  | (2) 256K  |   NONE   |   NONE   |
   |            |      9      |    x 9    |          |          |
   |------------+-------------+-----------+----------+----------|
   |   1MB 2    |    NONE     |   NONE    |   (18)   |   (18)   |
   |            |             |           |  41256   |  41256   |
   |------------+-------------+-----------+----------+----------|
   |  1.5MB 1   | (2) 256K x  | (2) 256K  |   (18)   |   NONE   |
   |            |      9      |    x 9    |  41256   |          |
   |------------+-------------+-----------+----------+----------|
   |  1.5MB 2   | (2) 256K x  |   NONE    |   (18)   |   (18)   |
   |            |      9      |           |  41256   |  41256   |
   |------------+-------------+-----------+----------+----------|
   |   2MB 1    | (2) 256K x  | (2) 256K  |   (18)   |   (18)   |
   |            |      9      |    x 9    |  41256   |  41256   |
   |------------+-------------+-----------+----------+----------|
   |   2MB 1    | (2) 1M x 9  |   NONE    |   NONE   |   NONE   |
   |------------+-------------+-----------+----------+----------|
   |   2MB 2    |    NONE     |   NONE    |   (18)   |   (18)   |
   |            |             |           |  411000  |  411000  |
   |------------+-------------+-----------+----------+----------|
   |   4MB 1    | (2) 1M x 9  | (2) 1M x  |   NONE   |   NONE   |
   |            |             |     9     |          |          |
   |------------+-------------+-----------+----------+----------|
   |   4MB 2    | (2) 1M x 9  |   NONE    |   (18)   |   (18)   |
   |            |             |           |  411000  |  411000  |
   |------------+-------------+-----------+----------+----------|
   |   5MB 1    | (2) 1M x 9  | (2) 1M x  |   (18)   |   (18)   |
   |            |             |     9     |  41256   |  41256   |
   |------------+-------------+-----------+----------+----------|
   |   5MB 1    | (2) 1M x 9  | (2) 1M x  |   (18)   |   NONE   |
   |            |             |     9     |  411000  |          |
   |------------+-------------+-----------+----------+----------|
   |   5MB 2    | (2) 1M x 9  | (2) 1M x  |   (18)   |   (18)   |
   |            |             |     9     |  41256   |  41256   |
   |------------+-------------+-----------+----------+----------|
   |   6MB 1    | (2) 1M x 9  | (2) 1M x  |   (18)   |   (18)   |
   |            |             |     9     |  411000  |  411000  |
   |------------+-------------+-----------+----------+----------|
   |   6MB 2    | (2) 1M x 9  | (2) 1M x  |   (18)   |   (18)   |
   |            |             |     9     |  411000  |  411000  |
   |------------+-------------+-----------+----------+----------|
   |   8MB 1    | (2) 4M x 9  | (2) 4M x  |   NONE   |   NONE   |
   |            |             |     9     |          |          |
   |------------------------------------------------------------|
   | Note 1 :Jumpers JP1 and JP2 pins 1 & 2, 3 & 4, 5 & 6, 7 &  |
   | 8, 9 & 10,and 11 & 12 closed.                              |
   |------------------------------------------------------------|
   | Note 2 :Jumpers JP1 and JP2 pins 1 & 12, 2 & 11, 3 & 10, 4 |
   | & 9, 5 & 8, and 6 & 7 closed.                              |
   +------------------------------------------------------------+