NCR CORPORATION

MODEL 3279-16XX PC916SX (REV. 03-92)

MODEL PC 710 KFC

Processor              80386SX (exact location unidentified)
Processor Speed        16MHz
Chip Set               Unidentified
Video Chip Set         None
Maximum Onboard Memory None
Maximum Video Memory   None
Cache                  None
BIOS                   Unidentified
Dimensions             Unidentified
I/O Options            None
NPU Options            80387SX

[Image]

                                CONNECTIONS

  Purpose                Location     Purpose                  Location

  External battery          J2        Speaker                     J4

  Power LED & keylock       J3        Auxiliary keyboard          J5
                                      connector

                        USER CONFIGURABLE SETTINGS

               Function                    Label           Position

  »   Factory configured - do not           JP3          Unidentified
      alter

  »   Monitor type select color              S1              Left

      Monitor type select monochrome         S1              Right

  »   Power on frequency speed select        S2              Left
      16MHz

      Power on frequency speed select        S2              Right
      8MHz

  »   Wait state select 4 wait states      SW3/1              Off

      Wait state select 3 wait states      SW3/1              On

  »   Auto switch enabled                  SW3/2              Off

      8MHz mode enabled                    SW3/2              On

  »   0 - 512KB enabled                    SW3/3              Off

      0 - 256KB enabled/256KB - 512KB      SW3/3              On
      disabled

  »   512KB - 1MB enabled                  SW3/4              Off

      512KB - 1MB disabled                 SW3/4              On

                       DRAM MEMORY MAPPING SELECTION

    External     Mapping area     SW3/5      SW3/6     SW3/7      SW3/8
    memory

        0MB      Not selected       On        On         On         On

  »     0MB        100000H -       Off        On         On         On
                    16000H

        1MB        200000H -        On        Off        On         On
                    26000H

        2MB        300000H -       Off        Off        On         On
                    36000H

        3MB        400000H -        On        On        Off         On
                    46000H

        4MB        500000H -       Off        On        Off         On
                    56000H

        5MB        600000H -        On        Off       Off         On
                    66000H

        6MB        700000H -       Off        Off       Off         On
                    76000H

        7MB        800000H -        On        On         On        Off
                    86000H

        8MB        900000H -       Off        On         On        Off
                    96000H

        9MB        A00000H -        On        Off        On        Off
                    A60000H

        10MB       B00000H -       Off        Off        On        Off
                    B60000H

        11MB       C00000H -        On        On        Off        Off
                    C60000H

        12MB       D00000H -       Off        On        Off        Off
                    D60000H

        13MB       E00000H -        On        Off       Off        Off
                    E60000H

        14MB       F00000H -       Off        Off       Off        Off
                    F60000H

  Note: The memory is located on the mainboard.

                   WAITSTATES AT DMA TRANSFERS SELECTION

     IOW/MEMR/MEMW            IOR             JP1               JP2

           250ns             500ns         Pins 2 & 3        Pins 2 & 3
                                             closed           closed

  »        500ns             750ns         Pins 2 & 3        Pins 1 & 2
                                             closed           closed

           750ns            1000ns         Pins 1 & 2        Pins 2 & 3
                                             closed           closed

           1000ns           1250ns         Pins 1 & 2        Pins 1 & 2
                                             closed           closed