(TXT) View Source
       
       # J-MARK COMPUTER CORPORATION
       
          386-25
       
          Processor            AM386/80386 (exact location unidentified) 
          Processor Speed      25MHz                                     
          Chip Set             OPTI                                      
          Video Chip Set       None                                      
          Maximum Onboard      16MB ( 8MB on external card)              
          Memory               
          Maximum Video Memory None                                      
          Cache                None                                      
          BIOS                 AMI                                       
          Dimensions           330mm x 218mm                             
          I/O Options          External memory card                      
          NPU Options          80387/3167                                
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose           | Location | Purpose          | Location |
          |-------------------+----------+------------------+----------|
          | Turbo LED         |   CR4    | External memory  |   SL1    |
          |                   |          | card             |          |
          |-------------------+----------+------------------+----------|
          | External battery  |   J10    | Reset switch     |   SW1    |
          |-------------------+----------+------------------+----------|
          | Speaker           |   J22    | Turbo switch     |   SW2    |
          |-------------------+----------+------------------+----------|
          | Power LED &       |   J23    |                  |          |
          | keylock           |          |                  |          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |              Function              | Label |   Position    |
          |------------------------------------+-------+---------------|
          |   | Monitor type select color      |  JP1  |  Pins 1 & 2   |
          |   |                                |       |    closed     |
          |---+--------------------------------+-------+---------------|
          |   | Monitor type select monochrome |  JP1  |  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     |
          +------------------------------------------------------------+
       
 (IMG) IMG 2
          
       
          +------------------------------------------------------------+
          |                     DRAM CONFIGURATION                     |
          |------------------------------------------------------------|
          | 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      |            |            |
          |------+-------------+-------------+------------+------------|
          | 3MB  | (4) 256K x  | (4) 256K x  | (4) 256K x |    None    |
          |      |      9      |      9      |     9      |            |
          |------+-------------+-------------+------------+------------|
          | 4MB  | (4) 256K x  | (4) 256K x  | (4) 256K x | (4) 256K x |
          |      |      9      |      9      |     9      |     9      |
          |------+-------------+-------------+------------+------------|
          | 4MB  | (4) 1M x 9  |    None     |    None    |    None    |
          |------+-------------+-------------+------------+------------|
          | 5MB  | (4) 256K x  | (4) 1M x 9  |    None    |    None    |
          |      |      9      |             |            |            |
          |------+-------------+-------------+------------+------------|
          | 6MB  | (4) 1M x 9  | (4) 256K x  | (4) 256K x |    None    |
          |      |             |      9      |     9      |            |
          |------+-------------+-------------+------------+------------|
          | 6MB  | (4) 256K x  | (4) 256K x  | (4) 1M x 9 |    None    |
          |      |      9      |      9      |            |            |
          |------+-------------+-------------+------------+------------|
          | 6MB  | (4) 256K x  | (4) 1M x 9  | (4) 256K x |    None    |
          |      |      9      |             |     9      |            |
          |------+-------------+-------------+------------+------------|
          | 7MB  | (4) 256K x  | (4) 256K x  | (4) 1M x 9 | (4) 256K x |
          |      |      9      |      9      |            |     9      |
          |------+-------------+-------------+------------+------------|
          | 7MB  | (4) 256K x  | (4) 1M x 9  | (4) 256K x | (4) 256K x |
          |      |      9      |             |     9      |     9      |
          |------+-------------+-------------+------------+------------|
          | 7MB  | (4) 1M x 9  | (4) 256K x  | (4) 256K x | (4) 256K x |
          |      |             |      9      |     9      |     9      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 DRAM CONFIGURATION (CON’T)                 |
          |------------------------------------------------------------|
          | Size  |   Bank 0    |   Bank 1   |   Bank 2   |   Bank 3   |
          |-------+-------------+------------+------------+------------|
          |  8MB  | (4) 1M x 9  | (4) 1M x 9 |    None    |    None    |
          |-------+-------------+------------+------------+------------|
          |  9MB  | (4) 256K x  | (4) 1M x 9 | (4) 1M x 9 |    None    |
          |       |      9      |            |            |            |
          |-------+-------------+------------+------------+------------|
          |  9MB  | (4) 1M x 9  | (4) 1M x 9 | (4) 256K x |    None    |
          |       |             |            |     9      |            |
          |-------+-------------+------------+------------+------------|
          |  9MB  | (4) 1M x 9  | (4) 256K x | (4) 1M x 9 |    None    |
          |       |             |     9      |            |            |
          |-------+-------------+------------+------------+------------|
          | 10MB  | (4) 256K x  | (4) 256K x | (4) 1M x 9 | (4) 1M x 9 |
          |       |      9      |     9      |            |            |
          |-------+-------------+------------+------------+------------|
          | 10MB  | (4) 256K x  | (4) 1M x 9 | (4) 1M x 9 | (4) 256K x |
          |       |      9      |            |            |     9      |
          |-------+-------------+------------+------------+------------|
          | 10MB  | (4) 1M x 9  | (4) 1M x 9 | (4) 256K x | (4) 256K x |
          |       |             |            |     9      |     9      |
          |-------+-------------+------------+------------+------------|
          | 10MB  | (4) 1M x 9  | (4) 256K x | (4) 1M x 9 | (4) 256K x |
          |       |             |     9      |            |     9      |
          |-------+-------------+------------+------------+------------|
          | 12MB  | (4) 1M x 9  | (4) 1M x 9 | (4) 1M x 9 |    None    |
          |-------+-------------+------------+------------+------------|
          | 13MB  | (4) 256K x  | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 |
          |       |      9      |            |            |            |
          |-------+-------------+------------+------------+------------|
          | 13MB  | (4) 1M x 9  | (4) 1M x 9 | (4) 1M x 9 | (4) 256K x |
          |       |             |            |            |     9      |
          |-------+-------------+------------+------------+------------|
          | 13MB  | (4) 1M x 9  | (4) 256K x | (4) 1M x 9 | (4) 1M x 9 |
          |       |             |     9      |            |            |
          |-------+-------------+------------+------------+------------|
          | 16MB  | (4) 1M x 9  | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 |
          |------------------------------------------------------------|
          | Note: If this board has 16MB installed, the on board       |
          | memory is disabled.                                        |
          +------------------------------------------------------------+