MODULAR CIRCUIT TECHNOLOGY
==========================

   MCT-M386SX-40

   Processor         80386SX                                      
   Processor Speed   33/40MHz                                     
   Chip Set          Unidentified                                 
   Max. Onboard DRAM 16MB                                         
   Cache             None                                         
   BIOS              AMI                                          
   Dimensions        220mm x 220mm                                
   I/O Options       None                                         
   NPU Options       80387SX                                      

<gopher://bitreich.org/I/th99/m/M-O/32474-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose          | Location | Purpose           | Location |
   |------------------+----------+-------------------+----------|
   | External battery |    J4    | Turbo LED/turbo   |    J8    |
   |                  |          | switch            |          |
   |------------------+----------+-------------------+----------|
   | Reset switch     |    J6    | Power LED &       |    J9    |
   |                  |          | keylock           |          |
   |------------------+----------+-------------------+----------|
   | Speaker          |    J7    |                   |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |           Function            | Jumper/Switch |  Position  |
   |-------------------------------+---------------+------------|
   |>> | NPU synchronous with CPU  |      JP2      | pins 1 & 2 |
   |   |                           |               |   closed   |
   |---+---------------------------+---------------+------------|
   |   | NPU asynchronous with CPU |      JP2      | pins 2 & 3 |
   |   |                           |               |   closed   |
   |---+---------------------------+---------------+------------|
   |>> | Monitor type select color |      JP4      | pins 2 & 3 |
   |   |                           |               |   closed   |
   |---+---------------------------+---------------+------------|
   |   | Monitor type select       |      JP4      | pins 1 & 2 |
   |   | monochrome                |               |   closed   |
   |---+---------------------------+---------------+------------|
   |>> | Parity check enabled      |      JP6      |    Open    |
   |---+---------------------------+---------------+------------|
   |   | Parity check disabled     |      JP6      |   Closed   |
   |---+---------------------------+---------------+------------|
   |>> | Battery type select       |      JP8      |   Closed   |
   |   | internal                  |               |            |
   |---+---------------------------+---------------+------------|
   |   | Battery type select       |      JP8      |    Open    |
   |   | external                  |               |            |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   |       Size       |       Bank 0       |       Bank 1       |
   |------------------+--------------------+--------------------|
   |      512KB       |    (2) 256K x 9    |        NONE        |
   |------------------+--------------------+--------------------|
   |       1MB        |    (2) 256K x 9    |    (2) 256K x 9    |
   |------------------+--------------------+--------------------|
   |       2MB        |     (2) 1M x 9     |        NONE        |
   |------------------+--------------------+--------------------|
   |       4MB        |     (2) 1M x 9     |     (2) 1M x 9     |
   |------------------+--------------------+--------------------|
   |       8MB        |     (2) 4M x 9     |        NONE        |
   |------------------+--------------------+--------------------|
   |       16MB       |     (2) 4M x 9     |     (2) 4M x 9     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  CPU SPEED CONFIGURATION                   |
   |------------------------------------------------------------|
   |            Speed             |             JP9             |
   |------------------------------+-----------------------------|
   |            33MHz             |           Closed            |
   |------------------------------+-----------------------------|
   |            40MHz             |            Open             |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |               CPU CLOCK SPEED CONFIGURATION                |
   |------------------------------------------------------------|
   |      Speed       |        JP1         |        JP5         |
   |------------------+--------------------+--------------------|
   |      25MHz       | pins 1 & 2 closed  | pins 2 & 3 closed  |
   |------------------+--------------------+--------------------|
   |      33MHz       | pins 2 & 3 closed  | pins 2 & 3 closed  |
   |------------------+--------------------+--------------------|
   |      40MHz       | pins 1 & 2 closed  | pins 1 & 2 closed  |
   +------------------------------------------------------------+