(TXT) View Source
       
       # UNIDENTIFIED
       
          KMX-16A/-20A/-25A 386SX SYSTEM BOARD
       
          Processor         80386SX                                      
          Processor Speed   16/20/25MHz                                  
          Chip Set          C&T                                          
          Max. Onboard DRAM 16MB                                         
          Cache             32KB (with external cache card)              
          BIOS              AMI/C&T                                      
          Dimensions        220mm x 220mm                                
          I/O Options       None                                         
          NPU Options       80387SX                                      
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose      | Location | Purpose               | Location |
          |--------------+----------+-----------------------+----------|
          | Speaker      |    J1    | External Battery      |   J13    |
          |--------------+----------+-----------------------+----------|
          | Turbo switch |    J7    | Reset switch          |   J14    |
          |--------------+----------+-----------------------+----------|
          | Turbo LED    |    J8    | CD-10 32KB External   |   SL1    |
          |              |          | Cache Card            |          |
          |--------------+----------+-----------------------+----------|
          | Power LED &  |   J10    |                       |          |
          | keylock      |          |                       |          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |           Function            | Jumper/Switch |  Position  |
          |-------------------------------+---------------+------------|
          | » | Factory configured-do not |      J2       |    N/A     |
          |   | alter                     |               |            |
          |---+---------------------------+---------------+------------|
          | » | Turbo mode enabled        |      J9       |   Closed   |
          |---+---------------------------+---------------+------------|
          |   | Turbo mode disabled       |      J9       |    Open    |
          |---+---------------------------+---------------+------------|
          | » | Monitor type select color |      J12      | pins 1 & 2 |
          |   |                           |               |   closed   |
          |---+---------------------------+---------------+------------|
          |   | Monitor type select       |      J12      | pins 2 & 3 |
          |   | monochrome                |               |   closed   |
          |---+---------------------------+---------------+------------|
          | » | Cache card enabled        |      W1       | pins 1 & 2 |
          |   |                           |               |   closed   |
          |---+---------------------------+---------------+------------|
          |   | Cache card disabled       |      W1       | pins 2 & 3 |
          |   |                           |               |   closed   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DRAM CONFIGURATION                     |
          |------------------------------------------------------------|
          | Size  |   Bank 0    |   Bank 1   |   Bank 2   |   Bank 3   |
          |-------+-------------+------------+------------+------------|
          | 512KB | (2) 256K x  |    NONE    |    NONE    |    NONE    |
          |       |      9      |            |            |            |
          |-------+-------------+------------+------------+------------|
          |  1MB  | (2) 256K x  | (2) 256K x |    NONE    |    NONE    |
          |       |      9      |     9      |            |            |
          |-------+-------------+------------+------------+------------|
          |  2MB  | (2) 256K x  | (2) 256K x | (2) 256K x | (2) 256K x |
          |       |      9      |     9      |     9      |     9      |
          |-------+-------------+------------+------------+------------|
          |  4MB  | (2) 1M x 9  | (2) 1M x 9 |    NONE    |    NONE    |
          |-------+-------------+------------+------------+------------|
          |  5MB  | (2) 256K x  | (2) 256K x | (2) 1M x 9 | (2) 1M x 9 |
          |       |      9      |     9      |            |            |
          |-------+-------------+------------+------------+------------|
          |  8MB  | (2) 1M x 9  | (2) 1M x 9 | (2) 1M x 9 | (2) 1M x 9 |
          |-------+-------------+------------+------------+------------|
          | 16MB  | (2) 4M x 9  | (2) 4M x 9 |    NONE    |    NONE    |
          +------------------------------------------------------------+
       
 (IMG) IMG 2
          
       
          +------------------------------------------------------------+
          |                    CACHE CONFIGURATION                     |
          |------------------------------------------------------------|
          |        Size        |      Bank 0       |      Bank 1       |
          |--------------------+-------------------+-------------------|
          | 32KB(Two Way Set)  |    (4) 8KB x 8    |       NONE        |
          |--------------------+-------------------+-------------------|
          |  32KB(Direct Map)  |    (4) 8KB x 8    |       NONE        |
          |--------------------+-------------------+-------------------|
          |  32KB(Direct Map)  |       NONE        |   (4) 16KB x 4    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 CACHE JUMPER CONFIGURATION                 |
          |------------------------------------------------------------|
          |       Size        |   J2   |  J3   |  J4   |  J5   |  J6   |
          |-------------------+--------+-------+-------+-------+-------|
          | 32KB(Two Way Set) | 1 & 2  | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 |
          |-------------------+--------+-------+-------+-------+-------|
          | 32KB(Direct Map)  | 2 & 3  | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 |
          |-------------------+--------+-------+-------+-------+-------|
          | 32KB(Direct Map)  | 2 & 3  | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 |
          |------------------------------------------------------------|
          | Note: Pins designated should be in the closed position.    |
          +------------------------------------------------------------+