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UNIDENTIFIED MAGIC I/O PM-540G
| Data bus: | 16-bit, ISA |
| Size: | Half-length, full-height card |
| Hard drives supported: | Two IDE (AT) Interface drives |
| Floppy drives supported: | Two 360KB, 720KB, 1.2MB, or 1.44MB |
| CONNECTIONS |
| Function | Location |
| 4-pin connector-drive active LED | J1 |
| 40-pin IDE Interface (AT) connector | J2 |
| 34-pin control cable connector-floppy drive | J3 |
| 9-pin serial port 2 (COM2)-internal | J4 |
| 9-pin serial port 1 (COM1)-external | J5 |
| 25-pin parallel port-external | J6 |
| 15-pin game port-internal | J7 |
| USER CONFIGURABLE SETTINGS |
| Function | Location | Setting |
| » | Floppy drive enabled | JP1 and JP2 | closed |
| | Floppy drive disabled | JP1 and JP2 | open |
| PARALLEL PORT (CN6) CONFIGURATION |
| LPT | JP3/pins 1 & 2 | JP3/pins 3 & 4 |
| » | LPT1 (378-37Fh) | open | closed |
| | LPT2 (278-27Fh) | closed | open |
| | Disabled | open | open |
| SERIAL PORT 2 (CN4) CONFIGURATION |
| COM | JP3/pins 5 & 6 | JP3/pins 7 & 8 |
| » | COM2 (2F8-2FFh) | open | closed |
| | COM4 (2E8-2EFh) | closed | open |
| | COM3 (3E8-3EFh) | closed | closed |
| | Disabled | open | open |
| SERIAL PORT 1 (CN5) CONFIGURATION |
| COM | JP3/pins 9 & 10 | JP3/pins 11 & 12 |
| » | COM1 (3F8-3FFh) | open | closed |
| | COM3 (3E8-3EFh) | closed | open |
| | COM4 (2E8-2EFh) | closed | closed |
| | Disabled | open | open |
| SERIAL PORT 1 (CN5) INTERRUPT REQUEST |
| IRQ | JP4/pins 1 & 2 | JP4/pins 3 & 4 | JP4/pins 5 & 6 |
| » | IRQ4 | closed | open | open |
| | IRQ5 | open | closed | open |
| | IRQ9 | open | open | closed |
| SERIAL PORT 2 (CN4) INTERRUPT REQUEST |
| IRQ | JP4/pins 7 & 8 | JP4/pins 9 & 10 | JP4/pin 11 & 12 |
| » | IRQ3 | closed | open | open |
| | IRQ9 | open | closed | open |
| | IRQ5 | open | open | closed |
| PARALLEL PORT (CN6) INTERRUPT REQUEST |
| IRQ | JP4/pins 13 & 14 | JP4/pins 15 & 16 |
| » | IRQ7 | open | closed |
| | IRQ5 | closed | open |
| | Disabled | open | open |
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