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ASUS P5SD2-VM 1-23
1.8.3 Interrupt assignments
Standard interrupt assignments
IRQ Priority Standard Function
0 1 System Timer
1 2 Keyboard Controller
2 — —
3 11 IRQ holder for PCI steering
4 12 Communications Port (COM1)
5 13 Standard 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
* These IRQs are usually available for PCI devices.
IRQ assignments for this motherboard
A B C D E F G H
PCI1 shared shared shared shared — — — —
PCI2 shared shared shared shared — — — —
PCIEX16_1 shared — — — — — — —
PCIEX1_1 shared — — — — — — —
Onboard USB controller 1 — — — — shared — — —
Onboard USB controller 2 — — — — — shared — —
Onboard USB 2.0 controller — — — — — — shared —
Onboard HD audio — — shared — — — — —
Onboard LAN — — — shared — — — —
Onboard IDE port shared — — — — — — —
Onboard SATA port — shared — — — — — —