COMPAQ COMPUTER CORPORATION

DESKPRO 286e (Model 001226)

Processor               80286
Processor Speed         12MHz
Chip Set                Compaq
Max. Onboard DRAM       1MB (12MB on system memory card)
Cache                   None
BIOS                    Compaq
Dimensions              332mm x 333mm
I/O Options             VGA feature connector, floppy drive interface, IDE
                        interface, proprietary system memory card slot,
                        parallel port, serial port, VGA port, bus mouse
NPU Options             80287

[Image]

                                CONNECTIONS

  Purpose                 Location     Purpose                 Location

  Bus mouse port             CN1       IDE interface              FD2

  Parallel port              CN2       Proprietary system         M1
                                       memory card

  Serial port                CN3       Speaker                    SPK

  VGA port                   CN4       Main power                 P0

  Fan power                  FAN       Drive power plugs         P1-3

  3.5 inch floppy            FD1       VGA feature connector      V1
  drive interface

                        USER CONFIGURABLE SETTINGS

              Function                   Jumper/Switch        Position

  »   Mouse port enabled                      E4             pins 2 & 3
                                                               closed

      Mouse port disabled                     E4             pins 1 & 2
                                                               closed

  »   Local bus hidden refresh                E6             pins 2 & 3
      enabled                                                  closed

      Local bus hidden refresh                E6             pins 1 & 2
      disabled                                                 closed

  »   NPU speed select 12MHz                  E11            pins 2 & 3
                                                               closed

  »   NPU speed select 8MHz                   E11            pins 1 & 2
                                                               closed

  »   Option ROM disabled                    SW1/3              Off

      Option ROM enabled                     SW1/3               On

  »   CPU speed select automatic at          SW1/4               On
      power-on

      CPU speed select high at               SW1/4              Off
      power-on

  »   Factory configured - do not            SW1/5              Off
      alter

  »   Monitor type select color              SW1/6               On

      Monitor type select                    SW1/6              Off
      monochrome (MDA)

  »   IDE address select                     SW2/1              Off
      1Fx;primary floppy address
      select 3Fx

      IDE address select                     SW2/1               On
      17x;secondary floppy address
      select 37x

  »   Password enabled                       SW2/2              Off

      Password disabled                      SW2/2               On

  »   IDE drive interface enabled            SW2/3              Off

      IDE drive interface disabled           SW2/3               On

  »   VGA port enabled                       SW2/8              Off

      VGA port disabled                      SW2/8               On

     DRAM SWITCH CONFIGURATION

    Size       SW1/1      SW1/2

   256KB        Off        Off

   512KB        On         Off

   640KB        On          On

  Reserved      Off         On

        PARALLEL PORT CONFIGURATION

    Setting        SW2/6          SW2/7

  LPT1 at 3Bx        On            Off

  LPT2 at 37x       Off            On

   Disabled          On            On

           SERIAL PORT CONFIGURATION

    Setting          SW2/4          SW2/5

  COM1 at IRQ4        Off            Off

  COM2 at IRQ3        On             Off

    Disabled          On              On