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# 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
(IMG) IMG 1
+------------------------------------------------------------+
| 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 |
+------------------------------------------------------------+