(TXT) View Source
       
       # IBM CORPORATION
       
          PC/AT MODEL 5170-239
       
          Processor             80286                                    
          Processor Speed       6MHz                                     
          Chip Set              None                                     
          Max. Onboard DRAM     512KB                                    
          Cache                 None                                     
          BIOS                  IBM                                      
          Dimensions            355mm x 304mm                            
          I/O Options           None                                     
          NPU Options           80287                                    
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |      Purpose      | Location |     Purpose      | Location |
          |-------------------+----------+------------------+----------|
          | Speaker           |   J19    | External battery |   J21    |
          |-------------------+----------+------------------+----------|
          | Power LED &       |   J20    |                  |          |
          | keylock           |          |                  |          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |          Function           |  Jumper/Switch  |  Position  |
          |-----------------------------+-----------------+------------|
          | »   | 14MHz adjust          |       C26       |    N/A     |
          |-----+-----------------------+-----------------+------------|
          | »   | Monitor type select   |       SW1       |     On     |
          |     | color                 |                 |            |
          |-----+-----------------------+-----------------+------------|
          | »   | Monitor type select   |       SW1       |    Off     |
          |     | monochrome            |                 |            |
          |------------------------------------------------------------|
          | Note:Variable resistor C26 should not be altered except by |
          | competently trained technicians.                           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DRAM CONFIGURATION                     |
          |------------------------------------------------------------|
          | Size  |   Bank 0    |    P-0     |   Bank 1   |    P-0     |
          |-------+-------------+------------+------------+------------|
          | 256KB |    (16)     |    (2)     |    NONE    |    NONE    |
          |       |  ZA1250NL   |  ZA1250NL  |            |            |
          |-------+-------------+------------+------------+------------|
          | 512KB |    (16)     |    (2)     |    (16)    |    (2)     |
          |       |  ZA1250NL   |  ZA1250NL  |  ZA1250NL  |  ZA1250NL  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 DRAM JUMPER CONFIGURATION                  |
          |------------------------------------------------------------|
          |            Size            |              J18              |
          |----------------------------+-------------------------------|
          |           256KB            |       pins 1 & 2 closed       |
          |----------------------------+-------------------------------|
          |           512KB            |       pins 2 & 3 closed       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     BIOS CONFIGURATION                     |
          |------------------------------------------------------------|
          |            Size            |             U131              |
          |----------------------------+-------------------------------|
          |            2716            |   pins 1 & 8, 2 & 7 closed    |
          |----------------------------+-------------------------------|
          |            2732            |   pins 3 & 6, 4 & 5 closed    |
          +------------------------------------------------------------+