DIGITAL EQUIPMENT CORPORATION

PC 2230 CE

Processor                  80286
Processor Speed            12MHz
Chip Set                   Unidentified
Video Chip Set             ATI
Maximum Onboard Memory     4MB
Maximum Video Memory       64KB
Cache                      None
BIOS                       Unidentified
Dimensions                 238mm x 228mm
I/O Options                Floppy drive interface, IDE interface, parallel
                           port, serial ports (2), VGA port, riser slot
NPU Options                80287

[Image]

                                CONNECTIONS

  Purpose                  Location     Purpose                Location

  Floppy/hard drive           J5        Serial port              J10
  power interface

  IDE interface               J6        Parallel port            J11

  Floppy drive                J7        VGA port                 J12
  interface

  Serial port                 J9        Riser slot               SL1

                        USER CONFIGURABLE SETTINGS

                 Function                     Label          Position

      SIMM type select 256KB                    W6             Open

      SIMM type select 1MB                      W6            Closed

  »   BIOS type select 27256                    W8            Closed

      BIOS type select 27128                    W8             Open

      Shadow RAM enabled                        W9             Open

      Shadow RAM disabled                       W9            Closed

      SIMM type select all same type           W18             Open

      SIMM type select mixed SIMMs             W18            Closed

  »   Keyboard clock speed select 8MHz         W22           Pins 1 & 2
                                                              closed

      Keyboard clock speed select 4MHz         W22           Pins 2 & 3
                                                              closed

  »   Burn in mode not disabled                W26             Open

      Burn in mode enabled                     W26            Closed

  »   Manufacturing mode disabled              W27             Open

      Manufacturing mode enabled               W27            Closed

  »   Floppy drive interface enabled           W28             Open

      Floppy drive interface disabled          W28            Closed

  »   Video type select normal                 W29             Open

      Video type select slow                   W29            Closed

      Speaker volume select high               W30             Open

      Speaker volume select low                W30            Closed

  »   60ns CAS enabled                         W31            Closed

      60ns CAS disabled                        W31             Open

      I/O half speed enabled                   W33           Pins 1 & 2
                                                              closed

      I/O half speed disabled                  W33           Pins 2 & 3
                                                              closed

      Monitor type select color                S1/1             On

      Monitor type select monochrome           S1/1             Off

      Monochrome mode using a color            S1/2             On
      monitor

      Color mode using a monochrome            S1/2             Off
      monitor

                            DRAM CONFIGURATION

      Size          Bank 0        Bank 1         Bank 2         Bank 3

     256KB        (1) 256K x       None           None           None
                      9

     512KB        (1) 256K x     (1) 256K x       None           None
                      9              9

     768KB        (1) 256K x     (1) 256K x    (1) 256K x        None
                      9              9             9

      1MB         (1) 256K x     (1) 256K x    (1) 256K x    (1) 256K x 9
                      9              9             9

      1MB         (1) 1M x 9       None           None           None

     1.2MB        (1) 1M x 9     (1) 256K x       None           None
                                     9

     1.5MB        (1) 1M x 9     (1) 256K x    (1) 256K x        None
                                     9             9

     1.79MB       (1) 1M x 9     (1) 256K x    (1) 256K x    (1) 256K x 9
                                     9             9

                        DRAM CONFIGURATION (CON’T)

      Size          Bank 0        Bank 1        Bank 2          Bank 3

      2MB         (1) 1M x 9    (1) 1M x 9       None            None

     2.28MB       (1) 1M x 9    (1) 1M x 9    (1) 256K x 9       None

     2.5MB        (1) 1M x 9    (1) 1M x 9    (1) 256K x 9   (1) 256K x 9

      3MB         (1) 1M x 9    (1) 1M x 9    (1) 1M x 9         None

      4MB         (1) 1M x 9    (1) 1M x 9    (1) 1M x 9      (1) 1M x 9

  Note: The location of banks 0, 1, 2, & 3 is unidentified.

                 DRAM JUMPER SELECTION

  SIMMS installed         W16                W17

         1                Open               Open

         2                Open              Closed

         3               Closed              Open

         4               Closed             Closed

    DRAM SPEED SELECTION

  Speed      W13      W14

  100ns     Open     Closed

  120ns     Closed    Open

                   VIDEO MEMORY CONFIGURATION

  Note: The location of the 64KB video memory is unidentified.

                          ONBOARD VIDEO SELECTION

           Setting                     W10                   W21

  »          Enabled                 Closed                 Closed

             Disabled                 Open                   Open

             Disabled                 Open                  Closed

             Disabled                Closed                  Open