(TXT) View Source
       
       # NCR CORPORATION
       
          MODEL 3278-XXXX PC710/3392
       
          Processor        80286 (exact location unidentified)           
          Processor Speed  6/10MHz                                       
          Chip Set         Unidentified                                  
          Video Chip Set   None                                          
          Maximum Onboard  640KB (on mainboard), (16MB on external       
          Memory           memory card)                                  
          Maximum Video    None                                          
          Memory           
          Cache            None                                          
          BIOS             Unidentified                                  
          Dimensions       Unidentified                                  
          I/O Options      Expansion slot                                
          NPU Options      80287 (exact location unidentified)           
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose          | Location | Purpose           | Location |
          |------------------+----------+-------------------+----------|
          | External battery |    J2    | Auxiliary         |    J5    |
          |                  |          | keyboard          |          |
          |                  |          | connector         |          |
          |------------------+----------+-------------------+----------|
          | Keylock          |    J3    | Expansion slot    |   JM1    |
          |------------------+----------+-------------------+----------|
          | Volume control   |    J4    |                   |          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |              Function               | Label |   Position   |
          |-------------------------------------+-------+--------------|
          | » | BIOS type select 32KB           |  J1   | Pins 3 & 6,  |
          |   |                                 |       | 4 & 5 closed |
          |---+---------------------------------+-------+--------------|
          |   | BIOS type select 16KB           |  J1   | Pins 1 & 8,  |
          |   |                                 |       | 2 & 7 closed |
          |---+---------------------------------+-------+--------------|
          | » | Wait state select 1 wait state  |  JP1  |  Pins 1 & 2  |
          |   |                                 |       |    closed    |
          |---+---------------------------------+-------+--------------|
          |   | Wait state select 0 wait states |  JP1  |  Pins 2 & 3  |
          |   |                                 |       |    closed    |
          |---+---------------------------------+-------+--------------|
          | » | 10MHz CPU speed enabled         |  JP2  |  Pins 1 & 2  |
          |   |                                 |       |    closed    |
          |---+---------------------------------+-------+--------------|
          |   | 10MHz CPU speed disabled        |  JP2  |  Pins 2 & 3  |
          |   |                                 |       |    closed    |
          |---+---------------------------------+-------+--------------|
          | » | Memory expansion card installed |  JP5  |  Pins 1 & 2  |
          |   |                                 |       |    closed    |
          |---+---------------------------------+-------+--------------|
          |   | Memory expansion card not       |  JP5  |  Pins 2 & 3  |
          |   | installed                       |       |    closed    |
          |---+---------------------------------+-------+--------------|
          |   | Monitor type select graphics    |  S1   |     Left     |
          |   | display                         |       |              |
          |---+---------------------------------+-------+--------------|
          |   | Monitor type select             |  S1   |    Right     |
          |   | alphanumeric display            |       |              |
          |---+---------------------------------+-------+--------------|
          | » | Power on speed select 10MHz     |  S2   |  Pins 1 & 2  |
          |   |                                 |       |    closed    |
          |---+---------------------------------+-------+--------------|
          |   | Power on speed select 6MHz      |  S2   |  Pins 2 & 3  |
          |   |                                 |       |    closed    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DRAM CONFIGURATION                     |
          |------------------------------------------------------------|
          | Note: The location of the memory is unidentified. Board    |
          | accepts 256KB or 512KB memory.                             |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 DRAM JUMPER CONFIGURATION                  |
          |------------------------------------------------------------|
          |            Size            |              JP3              |
          |----------------------------+-------------------------------|
          |           256KB            |       Pins 2 & 3 closed       |
          |----------------------------+-------------------------------|
          |           512KB            |       Pins 1 & 2 closed       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 DRAM JUMPER CONFIGURATION                  |
          |------------------------------------------------------------|
          |            Setting            |            JP4             |
          |-------------------------------+----------------------------|
          |  All onboard memory enabled   |     Pins 1 & 2 closed      |
          |-------------------------------+----------------------------|
          |  All onboard memory disabled  |     Pins 2 & 3 closed      |
          +------------------------------------------------------------+