
ABIT COMPUTER CORPORATION

FU325/FU333/FU340


Processor         80386DX
Processor Speed   25/33/40MHz
Chip Set          C & T/Peak DM
Max. Onboard DRAM 32MB
Cache             32/64/128/256KB
BIOS              AMI/C & T
Dimensions        330mm x 218mm
I/O Options       None
NPU Options       80387/3167


[Image]

                                CONNECTIONS

  Purpose                   Location   Purpose                   Location

  Turbo LED                   D4       Turbo switch                J50

  Speaker                     J18      Reset switch                J51

  Power LED & keylock         J19      External battery            JP2

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     Factory configured - do not alter        J21             Open

     Monitor type select monochrome           J23             Open

      Monitor type select color                J23            Closed

     CMOS memory normal operation             J42           pins 2 & 3
                                                              closed

      CMOS memory clear                        J42           pins 1 & 2
                                                              closed

              DRAM CONFIGURATION

      Size          Bank 0          Bank 1

      1MB         (4) 256K x 9       NONE

      2MB         (4) 256K x 9   (4) 256K x 9

      4MB         (4) 1M x 9         NONE

      8MB         (4) 1M x 9      (4) 1M x 9

      16MB        (4) 4M x 9         NONE

      32MB        (4) 4M x 9      (4) 4M x 9

                            CACHE CONFIGURATION

     Size         Cache          Location       Tag (U7)      Tag (U14 &
                                                                 U15)

     32KB       (4) 8K x 8         NONE        (1) 8K x 8        NONE

     64KB       (4) 8K x 8      (4) 8K x 8        NONE       (2) 16K x 4

    128KB       (4) 32K x 8        NONE        (1) 32K x 8       NONE

    256KB       (4) 32K x 8    (4) 32K x 8        NONE       (2) 64K x 4

                     CACHE JUMPER CONFIGURATION

   Size      J26      J27       J28       J29      J33       J34

   32KB     1 & 2     Open     Open      Closed   Closed     Open

   64KB     1 & 2    Closed    Open      Closed   Closed    1 & 2

  128KB     2 & 3    Closed    Open      Closed    Open     1 & 2

  256KB     2 & 3    Closed    Closed    Open      Open     1 & 2

  Note: Pins designated should be in the closed position.

                  CACHE JUMPER CONFIGURATION (CONT)

  Size      J35      J36     J37      J38     J39      J41      J52

  32KB     2 & 3    2 & 3    2 & 3   Open     2 & 3    Open    1 & 2

  64KB     Open     2 & 3    2 & 3   1 & 2    1 & 2    Open    1 & 2

  128KB    Open     1 & 2    1 & 2   2 & 3    2 & 3    1 & 2   2 & 3

  256KB    1 & 2    1 & 2    1 & 2   2 & 3    1 & 2    1 & 2   2 & 3

  Note: Pins designated should be in the closed position.

