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# UNIDENTIFIED
PRIME-2 SUPER I/O
Data bus: 16-bit, ISA
Size: Half-length, full-height card
Hard drives Two IDE (AT) Interface drives
supported:
Floppy drives Two 360KB, 720KB, 1.2MB, or 1.44MB drives
supported:
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Location |
|-----------------------------------------------+------------|
| 25-pin parallel port | CN1 |
|-----------------------------------------------+------------|
| 9-pin serial port 1 - external | CN2 |
|-----------------------------------------------+------------|
| 10-pin serial port 2 - internal | CN3 |
|-----------------------------------------------+------------|
| 34-pin control cable connector - floppy drive | CN4 |
|-----------------------------------------------+------------|
| 40-pin IDE (AT) Interface connector | CN5 |
|-----------------------------------------------+------------|
| 4-pin connector - drive active LED | CN6 |
|-----------------------------------------------+------------|
| Game port | CN7 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Location | Setting |
|------------------------------------+----------+------------|
| » | Floppy drive enabled | JP1 | Pins 1 & 2 |
| | | | closed |
|---+--------------------------------+----------+------------|
| | Floppy drive disabled | JP1 | Pins 2 & 3 |
| | | | closed |
|---+--------------------------------+----------+------------|
| | Floppy drive address is | JP2 | Pins 1 & 2 |
| | 3FC-3F7h | | closed |
|---+--------------------------------+----------+------------|
| | Floppy drive address is | JP2 | Pins 2 & 3 |
| | 370-377h | | closed |
|---+--------------------------------+----------+------------|
| » | IDE port enabled | JP3 | Pins 1 & 2 |
| | | | closed |
|---+--------------------------------+----------+------------|
| | IDE port disabled | JP3 | Pins 2 & 3 |
| | | | closed |
|---+--------------------------------+----------+------------|
| » | IDE(AT) port address is | JP4 | Pins 1 & 2 |
| | 1F0-1F7, 3F0-3F7h | | closed |
|---+--------------------------------+----------+------------|
| | IDE(AT) port address is | JP4 | Pins 2 & 3 |
| | 170-177, 370-377h | | closed |
|---+--------------------------------+----------+------------|
| » | IDE(XT) port address is | JP5 | Pins 1 & 2 |
| | 320-323h | | closed |
|---+--------------------------------+----------+------------|
| | IDE(XT) port address is | JP5 | Pins 2 & 3 |
| | 324-327h | | closed |
|---+--------------------------------+----------+------------|
| » | IDE port is IDE (AT) | JP6 | Pins 1 & 2 |
| | | | closed |
|---+--------------------------------+----------+------------|
| | IDE port is IDE (XT) | JP6 | Pins 2 & 3 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 1 CONFIGURATION |
|------------------------------------------------------------|
| COM/Address | JP7 | JP8 |
|------------------+--------------------+--------------------|
| » | COM1/3F8h | Pins 1 & 2 closed | Pins 1 & 2 closed |
|---+--------------+--------------------+--------------------|
| | COM3/3E8h | Pins 1 & 2 closed | Pins 2 & 3 closed |
|---+--------------+--------------------+--------------------|
| | Disabled | Pins 2 & 3 closed | N/A |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 2 CONFIGURATION |
|------------------------------------------------------------|
| COM/Address | JP9 | JP10 |
|------------------+--------------------+--------------------|
| » | COM2/2F8h | Pins 1 & 2 closed | Pins 1 & 2 closed |
|---+--------------+--------------------+--------------------|
| | COM4/2E8h | Pins 1 & 2 closed | Pins 2 & 3 closed |
|---+--------------+--------------------+--------------------|
| | Disabled | Pins 2 & 3 closed | N/A |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PARALLEL PORT CONFIGURATION |
|------------------------------------------------------------|
| LPT/Address | JP11 | JP12 |
|------------------+--------------------+--------------------|
| » | LPT1/378h | Pins 1 & 2 closed | Pins 1 & 2 closed |
|---+--------------+--------------------+--------------------|
| | LPT2/278h | Pins 1 & 2 closed | Pins 2 & 3 closed |
|---+--------------+--------------------+--------------------|
| | Disabled | Pins 2 & 3 closed | N/A |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MISCELLANEOUS TECHNICAL NOTE |
|------------------------------------------------------------|
| The function of J2 is unidentified. |
+------------------------------------------------------------+