
NCR CORPORATION

MODEL 3386-6XXX PC925/PC386

Processor              80386
Processor Speed        25MHz
Chip Set               Unidentified
Video Chip Set         None
Maximum Onboard Memory 16MB (8MB on external memory card)
Maximum Video Memory   None
Cache                  None
BIOS                   Unidentified
Dimensions             355mm x 304mm
I/O Options            External memory card
NPU Options            80387

[Image]

                                CONNECTIONS

  Purpose                   Location   Purpose                   Location

  Turbo LED                   J1       External battery            J9

  Speaker                     J7       External memory card        SL1

  Power LED & keylock         J8

                        USER CONFIGURABLE SETTINGS

                 Function                     Label          Position

      Jumper not used                           J2              N/A

     BIOS type select 27256                    J4           Pins 1 & 2
                                                              closed

      BIOS type select 27128                    J4           Pins 2 & 3
                                                              closed

     NPU installed                             J5           Pins 1 & 2
                                                              closed

      NPU not installed                         J5           Pins 2 & 3
                                                              closed

     Manufacturing diagnostics loop           SW/1             Off
      disabled

      Manufacturing diagnostics loop           SW/1             On
      enabled

      Monitor type select color                SW/2             On

      Monitor type select monochrome           SW/2             Off

                            DRAM CONFIGURATION

          Size                    Bank 0                   Bank 1

          4MB                     411000                    None

          8MB                     411000                 (4) 1M x 9

  Note: The location of banks 0 & 1 are unidentified. The number of chips
  for bank 0 are unidentified.

               DRAM JUMPER CONFIGURATION

            Size                        J27

            4MB              Pins 1 & 2, 3 & 4 closed

            8MB              Pins 2 & 3, 4 & 5 closed

          MISCELLANEOUS TECHINCAL NOTE

  The location of all pin 1s are unidentified.

