COMPAQ COMPUTER CORPORATION

Portable II (Model 000318)

Processor         80286
Processor Speed   8MHz
Chip Set          None
Max. Onboard DRAM 640KB
Cache             None
BIOS              Compaq
Dimensions        302mm x 256mm
I/O Options       External memory card
NPU Options       80287

[Image]

                                CONNECTIONS

  Purpose                  Location   Purpose                   Location

  Drive power                J110     Main power                  J117

  Speaker                    J114     Internal monitor power      J201

                        USER CONFIGURABLE SETTINGS

                Function                     Switch          Position

  »   Monitor type select Compaq VDU,          ED            pins 2 & 3
      EGA or RGBI                                             closed

      Monitor type select monochrome           ED            pins 1 & 2
      (MDA)                                                   closed

  »   CPU speed select 8MHz                    ES            pins 1 & 2
                                                              closed

      CPU speed select 6MHz                    ES            pins 2 & 3
                                                              closed

  »   Factory configured - do not alter        EM               N/A

                  DRAM CONFIGURATION

     Size        Bank 0          P-0         Bank 1

    128KB       (4) 4464      (2) 4164        NONE

    256KB       (4) 4464      (2) 4164     (18) 4164

    640KB       (4) 4464      (2) 4164     (18) 41256

                            DRAM CONFIGURATION

  Memory recognized          MS1              MS2               MS3

         None             Setting G        Setting G            N/A

        256KB             Setting V        Setting G            N/A

        512KB             Setting G        Setting V            N/A

        640KB             Setting V        Setting V            N/A

         1MB                 N/A              N/A            Setting V

        1.5MB                N/A              N/A            Setting G

  Note:The settings G and V are silk-screened on the board. The actual
  pin connections are unknown.

  1MB and 1.5MB configurations require the system memory card to be
  installed.