
COMPAQ COMPUTER CORPORATION

DESKPRO 386s

(Models 001148, 001157, 001644)

Processor               80386SX
Processor Speed         16MHz
Chip Set                Compaq
Max. Onboard DRAM       1MB
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             80387SX

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  External battery           BAT       IDE interface              FD2

  Bus mouse port             CN1       Proprietary system          M1
                                       memory card

  Parallel port              CN2       Speaker                    SPK

  Serial port                CN3       Main power                  P0

  VGA port                   CN4       Drive power plugs         P1-P3

  Fan power                  FAN       VGA feature connector       V1

  3.5 inch floppy drive      FD1
  interface

                        USER CONFIGURABLE SETTINGS

              Function                   Jumper/Switch        Position

     Mouse port enabled                       E4             pins 2 & 3
                                                               closed

      Mouse port disabled                      E4             pins 1 & 2
                                                               closed

     Factory configured - do not              E3              Closed
      alter

     Factory configured - do not             E10              Closed
      alter

     Fail safe timer enabled                SW1/1               On

      Fail safe timer disabled               SW1/1               Off

     NPU enabled                            SW1/2               On

      NPU disabled                           SW1/2               Off

     Factory configured - do not            SW1/3               Off
      alter

     CPU speed 16MHz                        SW1/4               Off

      CPU speed 16MHz; 8MHz when             SW1/4               On
      accessing floppy drive

     Factory configured - do not            SW1/5               Off
      alter

     Monitor type select color              SW1/6               On

      Monitor type select                    SW1/6               Off
      monochrome

     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

         BASE MEMORY CONFIGURATION

  Base memory      SW3/1          SW3/2

     256KB          Off            Off

     512KB           On            Off

     640KB           On            On

   Reserved         Off            On

                            DRAM CONFIGURATION

      Size              Card            Module A            Module B

       1MB              NONE              NONE                NONE

       2MB              1MB               NONE                NONE

       3MB              1MB                1MB                NONE

       4MB              1MB                1MB                 1MB

       5MB              4MB               NONE                NONE

       6MB              1MB                4MB                NONE

       7MB              1MB                1MB                 4MB

       9MB              4MB                4MB                NONE

      10MB              1MB                4MB                 4MB

      13MB              4MB                4MB                 4MB

  Note:A 1MB or 4MB card may be installed and either 1MB or 4MB modules
  installed on that card.

         DRAM SWITCH CONFIGURATION

  Size     SW3/3   SW3/4    SW3/5    SW3/6

   1MB      On       On       On       On

   2MB      On       On       On      Off

   3MB      On       On      Off       On

   4MB      On       On      Off      Off

   5MB      Off      On       On      Off

   6MB      On      Off      Off       On

   7MB      On      Off       On       On

   9MB      Off      On      Off       On

  10MB      On      Off      Off      Off

  13MB      Off      On      Off      Off

        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

