AMPTRON INTERNATIONAL, INC.
===========================

   DX-5400

                                                                  
   Processor             80386DX                                  
   Processor Speed       33/40MHz                                 
   Chip Set              OPTI                                     
   Max. Onboard DRAM     32MB                                     
   Cache                 32/64/128/256KB                          
   BIOS                  AMI                                      
   Dimensions            330mm x 218mm                            
   I/O Options           None                                     
   NPU Options           80387DX/3167                             
                                                                  

<gopher://bitreich.org/I/th99/m/A-B/31024-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose          | Location | Purpose           | Location |
   |------------------+----------+-------------------+----------|
   | External battery |    J3    | Reset switch      |    J6    |
   |------------------+----------+-------------------+----------|
   | Turbo switch     |    J4    | Power LED &       |    J7    |
   |                  |          | keylock           |          |
   |------------------+----------+-------------------+----------|
   | Turbo LED        |    J5    | Speaker           |    J8    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |               Function               | Jumper |  Position  |
   |--------------------------------------+--------+------------|
   |>> | CMOS memory normal operation     |  JP1   | pins 2 & 3 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | CMOS memory clear                |  JP1   | pins 1 & 2 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | Monitor type select color        |  JP2   |    Open    |
   |---+----------------------------------+--------+------------|
   |   | Monitor type select monochrome   |  JP2   |   Closed   |
   |---+----------------------------------+--------+------------|
   |>> | Bus speed clock select OSCIN/4   |  JP3   |   Closed   |
   |---+----------------------------------+--------+------------|
   |   | Bus speed clock select OSCIN/3   |  JP3   |    Open    |
   |---+----------------------------------+--------+------------|
   |>> | NPU mode select synchronous with |  JP4   |    Open    |
   |   | CPU                              |        |            |
   |---+----------------------------------+--------+------------|
   |   | NPU mode select synchronous with |  JP4   |   Closed   |
   |   | oscillator                       |        |            |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     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     |
   |------------------+--------------------+--------------------|
   |       8MB        |     (4) 1M x 9     |     (4) 1M x 9     |
   |------------------+--------------------+--------------------|
   |       16MB       |     (4) 4M x 9     |        NONE        |
   |------------------+--------------------+--------------------|
   |       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      |
   |------------+---------------+---------------+---------------|
   |    32KB    |  (4) 8K x 8   |     NONE      |  (2) 16K x 4  |
   |------------+---------------+---------------+---------------|
   |    64KB    |  (4) 8K x 8   |  (4) 8K x 8   |  (2) 16K x 4  |
   |------------+---------------+---------------+---------------|
   |   128KB    |  (4) 32K x 8  |     NONE      |  (2) 16K x 4  |
   |------------+---------------+---------------+---------------|
   |   256KB    |  (4) 32K x 8  |  (4) 32K x 8  |  (2) 16K x 4  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 CACHE JUMPER CONFIGURATION                 |
   |------------------------------------------------------------|
   |  Size  |  JP5   |  JP6   |  JP7   |  JP8  |  JP9  |  JP10  |
   |--------+--------+--------+--------+-------+-------+--------|
   |  32KB  | 1 & 2  | 1 & 2  | 1 & 2  | 2 & 3 | 2 & 3 |  Open  |
   |--------+--------+--------+--------+-------+-------+--------|
   |  64KB  | 1 & 2  | 1 & 2  | 2 & 3  | 2 & 3 | 1 & 2 |  Open  |
   |--------+--------+--------+--------+-------+-------+--------|
   | 128KB  | 2 & 3  | 1 & 2  | 2 & 3  | 2 & 3 | 1 & 2 | Closed |
   |--------+--------+--------+--------+-------+-------+--------|
   | 256KB  | 2 & 3  | 2 & 3  | 2 & 3  | 1 & 2 | 1 & 2 | Closed |
   |------------------------------------------------------------|
   | Note: Pins designated should be in the closed position.    |
   +------------------------------------------------------------+