ABC COMPUTER COMPANY, LTD.

A3263

Processor         80286
Processor Speed   25MHz
Chip Set          Headland
Max. Onboard DRAM 4MB
Cache             None
BIOS              AMI/Eurosoft
Dimensions        219mm x 234mm
I/O Options       None
NPU Options       80287

[Image]

                                CONNECTIONS

  Purpose                   Location    Purpose                  Location

  External battery            JP1       Reset switch               JP5

  Power LED & keylock         JP2       Speaker                    JP6

  Turbo switch                JP4       Turbo LED                  JP7

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   Monitor type select color                JP3            Closed

      Monitor type select monochrome           JP3             Open

  »   CMOS memory normal operation             JP8             Open

      CMOS memory clear                        JP8            Closed

                            DRAM CONFIGURATION

  Size     Bank 0      Parity     Bank 1      Parity     Bank 2   Bank 3
                       (P-0)                  (P-1)

  512KB      (4)         (2)       NONE        NONE      NONE      NONE
            44256      41256

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

   1MB       (4)         (2)        (4)         (2)      NONE      NONE
            44256      41256       44256      41256

   1MB       (4)         (2)       NONE        NONE      NONE       (2)
            44256      41256                                       256K x
                                                                     9

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

   2MB       (4)         (2)       NONE        NONE      NONE      NONE
           441000      411000

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

  2.5MB      (4)         (2)        (4)         (2)      NONE      NONE
            44256      41256      441000      411000

  2.5MB      (4)         (2)       NONE        NONE      NONE      (2) 1M
            44256      41256                                        x 9

  2.5MB     NONE        NONE       NONE        NONE       (2)      (2) 1M
                                                         256K x     x 9
                                                           9

   4MB       (4)         (2)        (4)         (2)      NONE      NONE
           441000      411000     441000      411000

   4MB       (4)         (2)       NONE        NONE      NONE      (2) 1M
           441000      411000                                       x 9

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