OCEAN INFORMATION SYSTEMS, INC.
===============================

   HIPPO-IV DCA

   Processor    80486SX/80487SX/80486DX/80486DX2/Pentium          
                Overdrive                                         
   Processor    25/33/50(internal)/50/66(internal)MHz             
   Speed        
   Chip Set     Unidentified                                      
   Max. Onboard 128MB                                             
   DRAM         
   Cache        None                                              
   BIOS         Unidentified                                      
   Dimensions   330mm x 218mm                                     
   I/O Options  VGA feature connector                             
   NPU Options  None                                              

<gopher://bitreich.org/I/th99/m/M-O/32105-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose           | Location | Purpose          | Location |
   |-------------------+----------+------------------+----------|
   | VGA feature       |   JP4    | Turbo LED        |    P4    |
   | connector         |          |                  |          |
   |-------------------+----------+------------------+----------|
   | Reset switch      |    P1    | Power LED &      |    P5    |
   |                   |          | keylock          |          |
   |-------------------+----------+------------------+----------|
   | Speaker           |    P2    | External battery |    P8    |
   |-------------------+----------+------------------+----------|
   | Turbo switch      |    P3    |                  |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |               Function               | Jumper |  Position  |
   |--------------------------------------+--------+------------|
   |>> | On board VGA disabled            |  JP2   | pins 1 & 2 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | On board VGA enabled             |  JP2   | pins 2 & 3 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | Monitor type select auto detect  |  JP3   | pins 1 & 2 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | Monitor type select monochrome   |  JP3   | pins 2 & 3 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | Monitor type select color        |  JP3   |    Open    |
   |---+----------------------------------+--------+------------|
   |>> | Monitor type select CGA/EGA/VGA  |  JP5   |   Closed   |
   |---+----------------------------------+--------+------------|
   |   | Monitor type select monochrome   |  JP5   |    Open    |
   |---+----------------------------------+--------+------------|
   |>> | CMOS memory normal operation     |  JP6   |    Open    |
   |---+----------------------------------+--------+------------|
   |   | CMOS memory clear                |  JP6   |   Closed   |
   |---+----------------------------------+--------+------------|
   |>> | Factory configured - do not      |  JP9   |    Open    |
   |   | alter                            |        |            |
   |---+----------------------------------+--------+------------|
   |>> | Factory configured - do not      |  JP10  |    Open    |
   |   | alter                            |        |            |
   |---+----------------------------------+--------+------------|
   |>> | Factory configured - do not      |  JP11  |    Open    |
   |   | alter                            |        |            |
   |---+----------------------------------+--------+------------|
   |>> | Factory configured - do not      |  JP14  |    Open    |
   |   | alter                            |        |            |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     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        |
   |------------------+--------------------+--------------------|
   |       5MB        |     (4) 1M x 9     |    (4) 256K x 9    |
   |------------------+--------------------+--------------------|
   |       8MB        |     (4) 1M x 9     |     (4) 1M x 9     |
   |------------------+--------------------+--------------------|
   |       16MB       |     (4) 4M x 9     |        NONE        |
   |------------------+--------------------+--------------------|
   |       17MB       |     (4) 4M x 9     |    (4) 256K x 9    |
   |------------------+--------------------+--------------------|
   |       20MB       |     (4) 4M x 9     |     (4) 1M x 9     |
   |------------------+--------------------+--------------------|
   |       32MB       |     (4) 4M x 9     |     (4) 4M x 9     |
   |------------------+--------------------+--------------------|
   |       64MB       |    (4) 16M x 9     |        NONE        |
   |------------------+--------------------+--------------------|
   |       65MB       |    (4) 16M x 9     |    (4) 256K x 9    |
   |------------------+--------------------+--------------------|
   |       68MB       |    (4) 16M x 9     |     (4) 1M x 9     |
   |------------------+--------------------+--------------------|
   |       80MB       |    (4) 16M x 9     |     (4) 4M x 9     |
   |------------------+--------------------+--------------------|
   |      128MB       |    (4) 16M x 9     |    (4) 16M x 9     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    CACHE CONFIGURATION                     |
   |------------------------------------------------------------|
   |       Size       |       Bank 0       |       Bank 1       |
   |------------------+--------------------+--------------------|
   |      256KB       |    (4) 32K x 8     |    (4) 32K x 8     |
   |------------------+--------------------+--------------------|
   |      512KB       |    (4) 128K x 8    |        NONE        |
   |------------------+--------------------+--------------------|
   |       1MB        |    (4) 128K x 8    |    (4) 128K x 8    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 CACHE JUMPER CONFIGURATION                 |
   |------------------------------------------------------------|
   |       Size        |        JP7         |        JP8        |
   |-------------------+--------------------+-------------------|
   |       256KB       |        Open        |       Open        |
   |-------------------+--------------------+-------------------|
   |       512KB       |        Open        |      Closed       |
   |-------------------+--------------------+-------------------|
   |        1MB        |       Closed       |       Open        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   CPU TYPE CONFIGURATION                   |
   |------------------------------------------------------------|
   |            Type            |              JP1              |
   |----------------------------+-------------------------------|
   |          80486SX           |       pins 1 & 2 closed       |
   |----------------------------+-------------------------------|
   |          80487SX           |       pins 3 & 4 closed       |
   |----------------------------+-------------------------------|
   |        80486DX/DX2         |       pins 3 & 4 closed       |
   |----------------------------+-------------------------------|
   |         Overdrive          |       pins 3 & 4 closed       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  CPU SPEED CONFIGURATION                   |
   |------------------------------------------------------------|
   |      Speed       |        JP12        |        JP13        |
   |------------------+--------------------+--------------------|
   |      25MHz       | pins 2 & 3 closed  | pins 1 & 2 closed  |
   |------------------+--------------------+--------------------|
   |      33MHz       | pins 1 & 2 closed  | pins 2 & 3 closed  |
   |------------------+--------------------+--------------------|
   |      50iMHz      | pins 2 & 3 closed  | pins 1 & 2 closed  |
   |------------------+--------------------+--------------------|
   |      66iMHz      | pins 1 & 2 closed  | pins 2 & 3 closed  |
   +------------------------------------------------------------+