2.5.3Interrupt assignments

IRQ

Standard function

0System timer

1Standard 101/102-key or Microsoft Natural Keyboard

4Communications Port (COM1)*

6Standard floppy disk controller

8System CMOS/real-time clock

9Microsoft ACPI-compliant system

9NVIDIA nForce networking controller #3

9NVIDIA nForce networking controller #4

10 NVIDIA nForce PCI system management

11 Mass storage controller

12 PS/2 compatible mouse port

13 Numeric data processor

14 Primary IDE channel

16 NVIDIA GeForce 6600 GT

19 VIA OHCI compliant IEEE 1394 host controller

20 NVIDIA nForce 590/570/550 Serial ATA controller

20 NVIDIA network bus enumerator

21 NVIDIA network bus enumerator

22 Standard OpenHCD USB host controller

22 NVIDIA nForce 590/570/550 Serial ATA controller

23 Standard Enhanced PCI to USB host controller

23 NVIDIA nForce 590/570/550 Serial ATA controller

IRQ assignments for this motherboard

 

A

B

C

D

E

F

G

H

PCIEx16_1

–

–

–

–

shared

–

–

–

PCIEx16_2

–

–

–

–

–

shared

–

–

PCIEx16_3

–

–

–

–

shared

–

–

–

PCIEx1_1

–

–

–

–

–

shared

–

–

PCI Slot_1

shared

–

–

–

–

–

–

–

PCI Slot_2

–

shared

–

–

–

–

–

–

USB 1.1

–

shared

–

–

–

–

–

–

USB 2.0

–

–

shared

–

–

–

–

–

LAN_1

–

shared

–

–

–

–

–

–

LAN_2

–

shared

–

–

–

–

–

–

PATA

shared

–

–

–

–

–

–

–

SATA_1

–

shared

–

–

–

–

–

–

SATA_2

–

–

shared

–

–

–

–

–

SATA_3

–

–

–

used

–

–

–

–

SATA_RAID

–

shared

–

–

–

–

–

–

1394

–

shared

–

–

–

–

–

–

Audio

–

–

shared

–

–

–

–

–

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