IRQ Assignments: Dell OptiPlex GX1
IRQ Assignments: Dell™ OptiPlex™ GX1 Systems
| IRQ Line |
System Resource |
| IRQ0 |
System timer |
| IRQ1 |
Keyboard port |
| IRQ2 |
Enables IRQ8 through IRQ15 |
| IRQ31 |
Available |
| IRQ4 |
Serial port |
| IRQ5 |
Audio controller |
| IRQ6 |
Diskette/tape drive controller |
| IRQ7 |
Parallel port |
| IRQ8 |
RTC |
| IRQ9 |
Available |
| IRQ10 |
Available |
| IRQ112 |
NIC/default PCI IRQ |
| IRQ12 |
Mouse port |
| IRQ13 |
Math coprocessor |
| IRQ14 |
Primary EIDE channel |
| IRQ15 |
Secondary EIDE channel |
1 IRQ3 is available provided that no
other device in the computer (such as a modem) is using COM2 or COM4.
2 If an ISA expansion card is configured for IRQ11, the NIC or PCI IRQ is
assigned to another available IRQ line.
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