
OCEAN INFORMATION SYSTEMS, INC.

HIPPO DCA 1 486 REV. 1.0

Processor    80486SX/80487SX/80486DX/80486DX2/80486DX4
Processor    25/33/50(internal)/66(internal)/75(internal)/100(internal)MHz
Speed
Chip Set     Unidentified
Max. Onboard 64MB
DRAM
Cache        None
BIOS         Unidentified
Dimensions   330mm x 218mm
I/O Options  32-bit VESA local bus slots (3)
NPU Options  None

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  Turbo switch                P1       Turbo LED                   P5

  Speaker                     P2       External battery            P8

  Reset switch                P3       Chassis fan power           P9

  Power LED & keylock         P4       32-bit VESA local bus   SL1 - SL3
                                       slots

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     Factory configured - do not alter        JP1           pins 1 & 2
                                                              closed

     Factory configured - do not alter        JP2              N/A

     Factory configured - do not alter        JP3             Open

     Monitor type select monochrome           JP7           pins 2 & 3
                                                              closed

      Monitor type select CGA/EGA/VGA          JP7           pins 1 & 2
                                                              closed

     CMOS memory normal operation            JP10           pins 1 & 2
                                                              closed

      CMOS memory clear                       JP10           pins 2 & 3
                                                              closed

     Factory configured - do not alter       JP11              N/A

     Factory configured - do not alter       JP12              N/A

     Factory configured - do not alter       JP13           pins 2 & 3
                                                              closed

     Factory configured - do not alter       JP14           pins 2 & 3
                                                              closed

     Factory configured - do not alter       JP15           pins 2 & 3
                                                              closed

     Factory configured - do not alter       JP16           pins 1 & 2
                                                              closed

                           DRAM CONFIGURATION

     Size         Bank 0         Bank 1         Bank 2        Bank 3

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

     8MB        (1) 1M x 36   (1) 1M x 36        NONE          NONE

     8MB        (1) 2M x 36       NONE           NONE          NONE

     12MB       (1) 1M x 36   (1) 1M x 36    (1) 1M x 36       NONE

     12MB       (1) 1M x 36   (1) 2M x 36        NONE          NONE

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

     16MB       (1) 2M x 36   (1) 2M x 36        NONE          NONE

     16MB       (1) 4M x 36       NONE           NONE          NONE

     20MB       (1) 1M x 36   (1) 1M x 36    (1) 1M x 36    (1) 2M x 36

     20MB       (1) 1M x 36   (1) 2M x 36    (1) 2M x 36       NONE

     20MB       (1) 1M x 36   (1) 4M x 36        NONE          NONE

     24MB       (1) 1M x 36   (1) 1M x 36    (1) 2M x 36    (1) 2M x 36

     24MB       (1) 2M x 36   (1) 2M x 36    (1) 2M x 36       NONE

     24MB       (1) 2M x 36   (1) 4M x 36        NONE          NONE

     28MB       (1) 1M x 36   (1) 2M x 36    (1) 4M x 36       NONE

     28MB       (1) 1M x 36   (1) 2M x 36    (1) 2M x 36    (1) 2M x 36

     32MB       (1) 2M x 36   (1) 2M x 36    (1) 2M x 36    (1) 2M x 36

     32MB       (1) 4M x 36   (1) 4M x 36        NONE          NONE

     40MB       (1) 2M x 36   (1) 4M x 36    (1) 4M x 36       NONE

     48MB       (1) 2M x 36   (1) 2M x 36    (1) 4M x 36    (1) 4M x 36

     56MB       (1) 2M x 36   (1) 4M x 36    (1) 4M x 36    (1) 4M x 36

     64MB       (1) 4M x 36   (1) 4M x 36    (1) 4M x 36    (1) 4M x 36

                          CPU TYPE CONFIGURATION

       Type               JP6                JP8               JP9

      80486SX          pins 2 & 3           Open            pins 1 & 2
                         closed                               closed

      80487SX          pins 1 & 2         pins 1 & 2        pins 2 & 3
                         closed            closed             closed

      80486DX          pins 1 & 2         pins 2 & 3        pins 2 & 3
                         closed            closed             closed

     80486DX2          pins 1 & 2         pins 2 & 3        pins 2 & 3
                         closed            closed             closed

     80486DX4          pins 1 & 2         pins 2 & 3        pins 2 & 3
                         closed            closed             closed

                   CPU SPEED CONFIGURATION

        Speed                JP4                  JP5

        25MHz          pins 2 & 3 closed   pins 2 & 3 closed

        33MHz          pins 1 & 2 closed   pins 1 & 2 closed

       50iMHz          pins 2 & 3 closed   pins 2 & 3 closed

       66iMHz          pins 1 & 2 closed   pins 1 & 2 closed

       75iMHz          pins 2 & 3 closed   pins 2 & 3 closed

       100iMHz         pins 1 & 2 closed   pins 1 & 2 closed

  CPU SPEED CONFIGURATION (80486DX4 ONLY)

        Speed                  JP17

          2x            pins 3 & 4 closed

         2.5x           pins 5 & 6 closed

          3x            pins 1 & 2 closed

