
DASH COMPUTER, INC.

DC-386 33/40C

Processor         80386DX
Processor Speed   25/33/40MHz
Chip Set          OPTI
Max. Onboard DRAM 32MB
Cache             32/64/128/256KB
BIOS              AMI
Dimensions        330mm x 218mm
I/O Options       32-bit external memory card slot
NPU Options       80387DX/3167

[Image]

                                CONNECTIONS

  Purpose                 Location     Purpose                  Location

  External battery           J10       32-bit external             S1
                                       memory card

  Power LED & keylock        J23       Reset switch               SW1

  Speaker                    J24       Turbo switch               SW2

  Turbo LED                  JP4

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     Monitor type select color                JP1             Open

      Monitor type select monochrome           JP1            Closed

     CMOS memory normal operation             JP2           pins 2 & 3
                                                              closed

      CMOS memory clear                        JP2           pins 1 & 2
                                                              closed

     Bus speed select ATCLK/8                 JP3           pins 1 & 2
                                                              closed

      Bus speed select ATCLK/6                 JP3        pins 1 & 2 open

  Note:JP3 is a 4-pin jumper, pins 3 & 4 are not used.

                            DRAM CONFIGURATION

    Size         Bank 0          Bank 1         Bank 2         Bank 3

    1MB       (4) 256K x 9        NONE           NONE           NONE

    2MB       (4) 256K x 9    (4) 256K x 9       NONE           NONE

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

    5MB       (4) 256K x 9     (4) 1M x 9        NONE           NONE

    8MB        (4) 1M x 9      (4) 1M x 9        NONE           NONE

    12MB       (4) 1M x 9      (4) 1M x 9     (4) 1M x 9        NONE

    16MB       (4) 1M x 9      (4) 1M x 9     (4) 1M x 9     (4) 1M x 9

    16MB       (4) 4M x 9         NONE           NONE           NONE

    20MB       (4) 1M x 9      (4) 4M x 9        NONE           NONE

    24MB       (4) 1M x 9      (4) 1M x 9     (4) 4M x 9        NONE

    28MB       (4) 1M x 9      (4) 1M x 9     (4) 1M x 9     (4) 4M x 9

    32MB       (4) 4M x 9      (4) 4M x 9        NONE           NONE

    36MB       (4) 1M x 9      (4) 4M x 9     (4) 4M x 9        NONE

    40MB       (4) 1M x 9      (4) 1M x 9     (4) 4M x 9     (4) 4M x 9

    48MB       (4) 4M x 9      (4) 4M x 9     (4) 4M x 9        NONE

    52MB       (4) 1M x 9      (4) 4M x 9     (4) 4M x 9     (4) 4M x 9

    64MB       (4) 4M x 9      (4) 4M x 9     (4) 4M x 9     (4) 4M x 9

  Note:Banks 2 & 3 are utilized when a 32-bit external memory card is
  installed at S1.

                            CACHE CONFIGURATION

    Size         Bank 0        Bank 1        TAG (U32,       TAG (U42)
                                               U33)

    32KB       (4) 8K x 8       NONE        (2) 4K x 4       (1) 4K x 4

    64KB       (4) 8K x 8    (4) 8K x 8     (2) 4K x 4       (1) 4K x 4

    128KB      (4) 32K x 8      NONE        (2) 16K x 4     (1) 16K x 1

    256KB      (4) 32K x 8   (4) 32K x 8    (2) 16K x 4     (1) 16K x 1

                        CACHE JUMPER CONFIGURATION

  Size      JP5       JP6        JP7        JP8         JP9       JP10

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

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

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

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

  Note:Pins designated should be in the closed position.

