CHAINTECH COMPUTER COMPANY, LTD.
================================

   325SCD/333SCD/340SCD

   Processor         AM386DX/AM386DXL/80386DX                     
   Processor Speed   25/33/40MHz                                  
   Chip Set          Unidentified                                 
   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/C-D/32913-1.png>
   

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

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |              Function              | Jumper |   Position   |
   |------------------------------------+--------+--------------|
   |>> | Monitor type select color      |   J6   |    Closed    |
   |---+--------------------------------+--------+--------------|
   |   | Monitor type select monochrome |   J6   |     Open     |
   |---+--------------------------------+--------+--------------|
   |>> | NPU synchronous with CPU       |  J14   |  pins 1 & 2  |
   |   |                                |        |    closed    |
   |---+--------------------------------+--------+--------------|
   |   | NPU asynchronous with CPU      |  J14   |  pins 2 & 3  |
   |   |                                |        |    closed    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     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     |
   |------------------+--------------------+--------------------|
   |       32MB       |     (4) 4M x 9     |     (4) 4M x 9     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    CACHE CONFIGURATION                     |
   |------------------------------------------------------------|
   | Size  |   Bank 0    |   Bank 1   |    TAG0    |    TAG1    |
   |-------+-------------+------------+------------+------------|
   | 32KB  | (4) 8K x 8  |    NONE    | (1) 8K x 8 |    NONE    |
   |-------+-------------+------------+------------+------------|
   | 64KB  | (4) 8K x 8  | (4) 8K x 8 | (1) 8K x 8 | (1) 8K x 8 |
   |-------+-------------+------------+------------+------------|
   | 128KB | (4) 32K x 8 |    NONE    | (1) 32K x  |    NONE    |
   |       |             |            |     8      |            |
   |-------+-------------+------------+------------+------------|
   | 256KB | (4) 32K x 8 | (4) 32K x  | (1) 32K x  | (1) 32K x  |
   |       |             |     8      |     8      |     8      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 CACHE JUMPER CONFIGURATION                 |
   |------------------------------------------------------------|
   | Size  |     J10     |    J11     |    J12     |    J13     |
   |-------+-------------+------------+------------+------------|
   | 32KB  | pins 1 & 2  | pins 1 & 2 | pins 1 & 2 | pins 1 & 2 |
   |       |   closed    |   closed   |   closed   |   closed   |
   |-------+-------------+------------+------------+------------|
   | 64KB  | pins 1 & 2  | pins 2 & 3 | pins 1 & 2 | pins 2 & 3 |
   |       |   closed    |   closed   |   closed   |   closed   |
   |-------+-------------+------------+------------+------------|
   | 128KB | pins 1 & 2  | pins 2 & 3 | pins 1 & 2 | pins 2 & 3 |
   |       |   closed    |   closed   |   closed   |   closed   |
   |-------+-------------+------------+------------+------------|
   | 256KB | pins 2 & 3  | pins 2 & 3 | pins 2 & 3 | pins 2 & 3 |
   |       |   closed    |   closed   |   closed   |   closed   |
   +------------------------------------------------------------+