
ABC COMPUTER COMPANY, LTD.

COMPACT 286 VER. 1.2

Processor         80286
Processor Speed   20MHz
Chip Set          C & T
Max. Onboard DRAM 8MB
Cache             None
BIOS              AMI
Dimensions        330.2mm x 218.4mm
I/O Options       None
NPU Options       80287

[Image]

                                CONNECTIONS

  Purpose                   Location   Purpose                   Location

  Turbo LED                   E3       External battery            J17

  Reset switch                E6       Speaker                     J19

  MIPS counter                E8       Power LED & keylock         J21

  Speed LED                   J15

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     NPU speed select fast                  E1 & E2         pins 1 & 2
                                                              closed

      NPU speed select slow                  E1 & E2         pins 2 & 3
                                                              closed

     BIOS type select 27128                   E4            pins 1 & 2
                                                              closed

      BIOS type select 27256                   E4            pins 2 & 3
                                                              closed

     CMOS memory normal operation             E5            pins 1 & 2
                                                              closed

      CMOS memory clear                        E5            pins 2 & 3
                                                              closed

     Reset enabled through hardware           E7            pins 2 & 3
      and keyboard                                            closed

      Reset enabled through hardware           E7            pins 1 & 2
      only                                                    closed

     Monitor type select monochrome           SW1             Open

      Monitor type select color                SW1            Closed

                            DRAM CONFIGURATION

   Size        Bank 0          Bank 1          Bank 2          Bank 3

  512KB     (2) 256K x 9        NONE            NONE            NONE

  640KB     (2) 256K x 9     (2) 64K x 9        NONE            NONE

   1MB      (2) 256K x 9    (2) 256K x 9        NONE            NONE

  1.5MB     (2) 256K x 9    (2) 256K x 9    (2) 256K x 9        NONE

  1.64MB    (2) 256K x 9     (2) 64K x 9    (2) 256K x 9     (2) 256K x 9

   2MB      (2) 256K x 9    (2) 256K x 9    (2) 256K x 9     (2) 256K x 9

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

   3MB      (2) 256K x 9    (2) 256K x 9     (2) 1M x 9         NONE

   4MB       (2) 1M x 9      (2) 1M x 9         NONE            NONE

  4.64MB    (2) 256K x 9     (2) 64K x 9     (2) 1M x 9      (2) 1M x 9

   5MB      (2) 256K x 9    (2) 256K x 9     (2) 1M x 9      (2) 1M x 9

   6MB       (2) 1M x 9      (2) 1M x 9      (2) 1M x 9         NONE

   8MB       (2) 1M x 9      (2) 1M x 9      (2) 1M x 9      (2) 1M x 9

