Standard Interrupt Assignments
IRQ | Priority | Standard function |
0 | N/A | System Timer |
1 | N/A | Keyboard Controller |
2 | N/A | Programmable Interrupt |
3 * | 8 | Communications Port (COM2) |
4 * | 9 | Communications Port (COM1) |
5 * | 6 | Sound Card (sometimes LPT2) |
6 * | 11 | Floppy Disk Controller |
7 * | 7 | Printer Port (LPT1) |
8 | N/A | System CMOS/Real Time Clock |
9 * | 10 | ACPI Mode when enabled |
10 * | 3 | IRQ Holder for PCI Steering |
11 * | 2 | IRQ Holder for PCI Steering |
12 * | 4 | PS/2 Compatible Mouse Port |
13 | N/A | Numeric Data Processor |
14 * | 5 | Primary IDE Channel |
15 * | 1 | Secondary IDE Channel |
* These IRQs are usually available for PCI devices.
EVGA Corporation 2900 Saturn St. Suite B, Brea, CA 92821
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