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ASUS P5V-VM Ultra Motherboard 1-19
Standard Interrupt Assignments
IRQ assignments for this motherboard
When using PCI cards on shared slots, ensure that the drivers support
“Share IRQ” or that the cards do not need IRQ assignments; otherwise,
conflicts will arise between the two PCI groups, making the system unstable
and the card inoperable.
IRQ Priority Standard Function
0 1 System Timer
1 2 Keyboard Controller
2 N/A N/A
3 11 IRQ Holder for PCI Steering
4 12 Communications Port (COM1)
5 13 IRQ Holder for PCI Steering
6 14 Floppy Disk Controller
7 15 Printer Port (LPT1)
8 3 System CMOS/Real Time Clock
9 4 Microsoft ACPI-Compliant System
10 5 IRQ Holder for PCI Steering
11 6 IRQ Holder for PCI Steering
12 7 PS/2 Compatible Mouse Port
13 8 Numeric Data Processor
14 9 Primary IDE Channel
15 10 Secondary IDE Channel
INT A INT B INT C INT D
PCI slot 1 shared –– –– ––
PCI slot 2 –– shared –– ––
OnBoard VGA shared –– –– ––