PC BRAND
========

   386DX/20 & 386DX/25

   Processor         80386DX                                      
   Processor Speed   20/25MHz                                     
   Chip Set          Unidentified                                 
   Max. Onboard DRAM 16MB                                         
   Cache             None                                         
   BIOS              AMI                                          
   Dimensions        330mm x 218mm                                
   I/O Options       None                                         
   NPU Options       80287/80387/3167                             

<gopher://bitreich.org/I/th99/m/P-R/32899-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose           | Location | Purpose          | Location |
   |-------------------+----------+------------------+----------|
   | Turbo LED         |    J1    | External battery |   J13    |
   |-------------------+----------+------------------+----------|
   | Power LED &       |    J2    | Reset switch     |   J15    |
   | keylock           |          |                  |          |
   |-------------------+----------+------------------+----------|
   | Speaker           |    J3    |                  |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |               Function               | Jumper |  Position  |
   |--------------------------------------+--------+------------|
   |>> | Factory configured - do not      |   J5   | pins 2 & 3 |
   |   | alter                            |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | Factory configured - do not      |   J6   | pins 1 & 2 |
   |   | alter                            |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | Factory configured - do not      |  J12   |    N/A     |
   |   | alter                            |        |            |
   |---+----------------------------------+--------+------------|
   |>> | CMOS memory normal operation     |  J14   | pins 1 & 2 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | CMOS memory clear                |  J14   | pins 2 & 3 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | Reset switch active at all times |  J16   | pins 2 & 3 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | Reset switch active only when    |  J16   | pins 1 & 2 |
   |   | keyboard is locked               |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | Monitor type select color        |  J17   | pins 2 & 3 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | Monitor type select monochrome   |  J17   | pins 1 & 2 |
   |   |                                  |        |   closed   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   | Size |   Bank 0    |   Bank 1    |   Bank 2   |   Bank 3   |
   |------+-------------+-------------+------------+------------|
   | 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      |
   |------+-------------+-------------+------------+------------|
   | 4MB  | (2) 1M x 9  | (2) 1M x 9  |    NONE    |    NONE    |
   |------+-------------+-------------+------------+------------|
   | 8MB  | (2) 1M x 9  | (2) 1M x 9  | (2) 1M x 9 | (2) 1M x 9 |
   |------+-------------+-------------+------------+------------|
   | 16MB | (2) 4M x 9  | (2) 4M x 9  |    NONE    |    NONE    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     NPU CONFIGURATION                      |
   |------------------------------------------------------------|
   |    Type    |  J4   |  J7   |  J8   |  J9   |  J10  |  J11  |
   |------------+-------+-------+-------+-------+-------+-------|
   |   80287    | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 1 & 2 | 2 & 3 |
   |   <10MHz   |       |       |       |       |       |       |
   |------------+-------+-------+-------+-------+-------+-------|
   |   80287    | 2 & 3 | 2 & 3 | 1 & 2 | 1 & 2 | 1 & 2 | 2 & 3 |
   |   10MHz    |       |       |       |       |       |       |
   |------------+-------+-------+-------+-------+-------+-------|
   |   80387    | 2 & 3 | 1 & 2 | 1 & 2 | 1 & 2 | 2 & 3 | 1 & 2 |
   |------------+-------+-------+-------+-------+-------+-------|
   |    3167    | 1 & 2 | 2 & 3 | 1 & 2 | 1 & 2 | 1 & 2 | 2 & 3 |
   |------------------------------------------------------------|
   | Note: Pins designated should be in the closed position.    |
   +------------------------------------------------------------+