
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

