SINGA
=====

   386/25 SYSTEM BOARD

   Processor             80386DX                                  
   Processor Speed       16/20/25MHz                              
   Chip Set              C & T                                    
   Max. Onboard DRAM     8MB                                      
   Cache                 None                                     
   BIOS                  CEI                                      
   Dimensions            330mm x 219mm                            
   I/O Options           32-bit external memory card slot         
   NPU Options           80287/80387                              

<gopher://bitreich.org/I/th99/m/S-T/31104-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose               | Location | Purpose      | Location |
   |-----------------------+----------+--------------+----------|
   | 32-bit external       |   J17    | Reset switch |   JP7    |
   | memory card           |          |              |          |
   |-----------------------+----------+--------------+----------|
   | Speaker               |   J19    | Turbo switch |   JP9    |
   |-----------------------+----------+--------------+----------|
   | Power LED & keylock   |   J20    | Turbo LED    |   JP10   |
   |-----------------------+----------+--------------+----------|
   | External battery      |   J21    |              |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |               Function               | Jumper |  Position  |
   |--------------------------------------+--------+------------|
   |>> | Monitor type select color        |  JP1   |   Closed   |
   |---+----------------------------------+--------+------------|
   |   | Monitor type select monochrome   |  JP1   |    Open    |
   |---+----------------------------------+--------+------------|
   |>> | Factory configured - do not      |  JP2   |   Closed   |
   |   | alter                            |        |            |
   |---+----------------------------------+--------+------------|
   |>> | Factory configured - do not      |  JP3   |   Closed   |
   |   | alter                            |        |            |
   |---+----------------------------------+--------+------------|
   |>> | Battery select internal          |  JP6   |   Closed   |
   |---+----------------------------------+--------+------------|
   |   | Battery select external          |  JP6   |    Open    |
   |---+----------------------------------+--------+------------|
   |>> | Factory configured - do not      |  JP8   | pins 1 & 2 |
   |   | alter                            |        |   closed   |
   |------------------------------------------------------------|
   | Note:The location of JP8 is unknown                        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     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        |
   |------------------+--------------------+--------------------|
   |       8MB        |     (4) 1M x 9     |     (4) 1M x 9     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     NPU CONFIGURATION                      |
   |------------------------------------------------------------|
   |        Type        |        JP4        |        JP5        |
   |--------------------+-------------------+-------------------|
   |       80287        |       Open        |      Closed       |
   |--------------------+-------------------+-------------------|
   |       80387        |      Closed       |       Open        |
   |--------------------+-------------------+-------------------|
   |      Disabled      |       Open        |       Open        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |              DRAM CONFIGURATION 386-MEM CARD               |
   |------------------------------------------------------------|
   | Size |   Bank 0    |   Bank 1    |   Bank 2   |   Bank 3   |
   |------+-------------+-------------+------------+------------|
   | 1MB  | (4) 256K x  |    NONE     |    NONE    |    NONE    |
   |      |      9      |             |            |            |
   |------+-------------+-------------+------------+------------|
   | 2MB  | (4) 256K x  | (4) 256K x  |    NONE    |    NONE    |
   |      |      9      |      9      |            |            |
   |------+-------------+-------------+------------+------------|
   | 4MB  | (4) 1M x 9  |    NONE     |    NONE    |    NONE    |
   |------+-------------+-------------+------------+------------|
   | 8MB  | (4) 1M x 9  | (4) 1M x 9  |    NONE    |    NONE    |
   |------+-------------+-------------+------------+------------|
   | 16MB | (4) 1M x 9  | (4) 1M x 9  | (4) 1M x 9 | (4) 1M x 9 |
   +------------------------------------------------------------+

<gopher://bitreich.org/I/th99/m/S-T/31104-2.png>