
DIGITAL EQUIPMENT CORPORATION

PC 486 CE

Processor                  80486
Processor Speed            25/33MHz
Chip Set                   Unidentified
Video Chip Set             None
Maximum Onboard Memory     128MB
Maximum Video Memory       None
Cache                      None
BIOS                       Unidentified
Dimensions                 350mm x 329mm
I/O Options                External memory slots (2), floppy drive
                           interface, IDE interface, parallel port, serial
                           ports (2)
NPU Options                None

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  Parallel port              J12       Speaker                    J17

  Serial port                J13       Power LED & keylock        J18

  Serial port                J14       Reset switch               J19

  IDE interface              J15       LED connector              J20

  Floppy drive interface     J16       External memory cards    SL1 & SL2

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

     Speaker volume select normal             W3              Open
      volume

      Speaker volume select low volume         W3             Closed

     IDE interface enabled                    W5              Open

      IDE interface disabled                   W5             Closed

     I/O recovery time select extra          W14             Closed
      time provided

      I/O recovery time select no extra       W14              Open
      time provided

      Monitor type select color              SW1/1              On

      Monitor type select monochrome         SW1/1             Off

     Factory configured - do not alter      SW1/2             Off

                           DRAM CONFIGURATION

     Size         Bank 0         Bank 1         Bank 2        Bank 3

     4MB        (1) 1M x 36       None           None          None

     8MB        (1) 2M x 36       None           None          None

     8MB        (1) 1M x 36   (1) 1M x 36        None          None

     12MB       (1) 2M x 36   (1) 1M x 36        None          None

     12MB       (1) 1M x 36   (1) 1M x 36    (1) 1M x 36       None

     16MB       (1) 4M x 36       None           None          None

     16MB       (1) 2M x 36   (1) 1M x 36    (1) 1M x 36       None

     16MB       (1) 2M x 36   (1) 2M x 36        None          None

     16MB       (1) 1M x 36   (1) 1M x 36    (1) 1M x 36    (1) 1M x 36

     20MB       (1) 4M x 36   (1) 1M x 36        None          None

     20MB       (1) 2M x 36   (1) 1M x 36    (1) 1M x 36    (1) 1M x 36

     20MB       (1) 1M x 36   (1) 2M x 36    (1) 2M x 36       None

     20MB       (1) 1M x 36   (1) 4M x 36        None          None

     24MB       (1) 4M x 36   (1) 1M x 36    (1) 1M x 36       None

     24MB       (1) 4M x 36   (1) 2M x 36        None          None

     24MB       (1) 2M x 36   (1) 2M x 36    (1) 2M x 36       None

     28MB       (1) 4M x 36   (1) 1M x 36    (1) 1M x 36    (1) 1M x 36

     28MB       (1) 1M x 36   (1) 2M x 36    (1) 2M x 36    (1) 2M x 36

     32MB       (1) 8M x 36       None           None          None

     32MB       (1) 4M x 36   (1) 2M x 36    (1) 2M x 36       None

     32MB       (1) 4M x 36   (1) 4M x 36        None          None

                        DRAM CONFIGURATION (CONT)

     Size          Bank 0        Bank 1         Bank 2          Bank 3

     32MB       (1) 2M x 36    (1) 2M x 36    (1) 2M x 36    (1) 2M x 36

     36MB       (1) 8M x 36    (1) 1M x 36       None            None

     40MB       (1) 8M x 36    (1) 1M x 36    (1) 1M x 36        None

     40MB       (1) 8M x 36    (1) 2M x 36       None            None

     40MB       (1) 4M x 36    (1) 2M x 36    (1) 2M x 36    (1) 2M x 36

     44MB       (1) 8M x 36    (1) 1M x 36    (1) 1M x 36    (1) 1M x 36

     48MB       (1) 8M x 36    (1) 2M x 36    (1) 2M x 36        None

     48MB       (1) 8M x 36    (1) 4M x 36       None            None

     48MB       (1) 4M x 36    (1) 4M x 36    (1) 4M x 36        None

     52MB       (1) 1M x 36    (1) 4M x 36    (1) 4M x 36    (1) 4M x 36

     56MB       (1) 8M x 36    (1) 2M x 36    (1) 2M x 36    (1) 2M x 36

     56MB       (1) 2M x 36    (1) 4M x 36    (1) 4M x 36    (1) 4M x 36

     64MB       (1) 8M x 36    (1) 4M x 36    (1) 4M x 36        None

     64MB       (1) 8M x 36    (1) 8M x 36       None            None

     64MB       (1) 4M x 36    (1) 4M x 36    (1) 4M x 36    (1) 4M x 36

            Note: To use 128MB, install two fully populated memory cards
            in SL1 & SL2. If only one card is used, install in SL1.

  CPU SPEED SELECTION

   Speed        W13

   25MHz       Closed

   33MHz        Open

                         IDE CONTROLLER SELECTION

        Setting                W6              W8               W11

         Enabled             Open           Closed            Closed

          Disabled           Closed           Open              Open

                          BURN IN MODE SELECTION

           Setting                     W4                     W7

            Disabled                 Open                  Closed

             Enabled                 Closed                  Open

