ACER, INC.

AP5CS

DUNNET INTERNATIONAL TRADING COMPANY

Widoshi Pentium 75,90,100,120,133

Processor             Pentium
Processor Speed       75/90/100/120MHz
Chip Set              SIS
Max. Onboard DRAM     128MB
Cache                 256/512/1024KB
BIOS                  Award
Dimensions            330mm x 218mm
I/O Options           32-bit PCI slots (4), floppy drive interface, green
                      PC connector, IDE interfaces (2), parallel port,
                      serial ports (2)
NPU Options           None

[Image]

                                CONNECTIONS

  Purpose                 Location     Purpose                Location

  Chassis fan power          FAN       Green PC                  JP4
                                       connector

  Parallel port              CN1       Power LED &          JP21 pins 1 -
                                       keylock                    5

  Serial port 2              CN2       Speaker              JP21 pins 7 -
                                                                 10

  Serial port 1              CN3       Turbo LED             JP21 pins 12
                                                                - 13

  Floppy drive               CN4       Turbo switch          JP21 pins 15
  interface                                                     - 17

  IDE interface              CN5       Reset switch          JP21 pins 19
  (secondary)                                                   - 20

  IDE interface              CN6       32-bit PCI slots       PC1 - PC4
  (primary)

  External battery           JP1

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   CMOS memory normal operation            JP2           pins 2 & 3
                                                              closed

      CMOS memory clear                       JP2           pins 1 & 2
                                                              closed

  »   Factory configured - do not             JP3           pins 1 & 2
      alter                                                   closed

  »   Floppy drive interface enabled          JP7           pins 1 & 2
                                                              closed

      Floppy drive interface disabled         JP7           pins 2 & 3
                                                              closed

  »   Factory configured - do not             JP12          pins 2 & 3
      alter                                                   closed

  »   Factory configured - do not             JP18          pins 2 & 3
      alter                                                   closed

  »   Factory configured - do not             JP19          pins 2 & 3
      alter                                                   closed

  »   Factory configured - do not             JP20          pins 1 & 2
      alter                                                   closed

                DRAM CONFIGURATION

      Size            Bank 0           Bank 1

       2MB        (2) 256K x 36         NONE

       4MB        (2) 256K x 36    (2) 256K x 36

       4MB        (2) 512K x 36         NONE

       8MB        (2) 512K x 36    (2) 512K x 36

       8MB         (2) 1M x 36          NONE

      16MB         (2) 1M x 36      (2) 1M x 36

      16MB         (2) 2M x 36          NONE

      20MB        (2) 512K x 36     (2) 2M x 36

      32MB         (2) 2M x 36      (2) 2M x 36

      32MB         (2) 4M x 36          NONE

      36MB        (2) 512K x 36     (2) 4M x 36

      40MB         (2) 1M x 36      (2) 4M x 36

      48MB         (2) 2M x 36      (2) 4M x 36

      64MB         (2) 4M x 36      (2) 4M x 36

      64MB         (2) 8M x 36          NONE

      80MB         (2) 2M x 36      (2) 8M x 36

      128MB        (2) 8M x 36      (2) 8M x 36

      128MB        (2) 16M x 36         NONE

                      CACHE CONFIGURATION

      Size          Bank 0          Bank 1           TAG

     256KB        (4) 32K x 8     (4) 32K x 8    (1) 32K x 8

     512KB        (4) 64K x 8     (4) 64K x 8    (1) 32K x 8

      1MB        (4) 128K x 8    (4) 128K x 8    (1) 32K x 8

                  CACHE JUMPER CONFIGURATION

        Size                 JP14                 JP16

        256KB          pins 1 & 2 closed   pins 1 & 2 closed

        512KB          pins 1 & 2 closed   pins 2 & 3 closed

         1MB           pins 2 & 3 closed   pins 2 & 3 closed

                          CPU SPEED CONFIGURATION

      Speed              JP10              JP11               JP17

      75MHz           pins 1 & 2         pins 1 & 2         pins 1 & 2
                        closed            closed             closed

      90MHz           pins 1 & 2         pins 2 & 3         pins 1 & 2
                        closed            closed             closed

      100MHz          pins 2 & 3         pins 2 & 3         pins 1 & 2
                        closed            closed             closed

      120MHz          pins 1 & 2         pins 2 & 3         pins 2 & 3
                        closed            closed             closed

                      BIOS CONFIGURATION

        Type                 JP13                 JP15

        Flash          pins 1 & 2 closed   pins 1 & 2 closed

       EEPROM          pins 2 & 3 closed   pins 2 & 3 closed

                      DMA CONFIGURATION

         DMA                 JP5                  JP6

        DMA1           pins 2 & 3 closed   pins 2 & 3 closed

        DMA3           pins 1 & 2 closed   pins 1 & 2 closed