1.8.3Interrupt assignments

IRQ

Standard function

0System timer

1Standard 101/102-key or Microsoft natural keyboard

2Free

3Free

4Commnications Port (COM1)*

5Free

6Standard floppy

7(Free)

8System CMOS/Real Time Clock

9Microsoft ACPI-Compliant system

10Free

11(Free)

12Microsoft PS/2 port mouse

13Numeric data processor

14Free

15Intel® ICH10 Family SM bus controller-3A30

*These IRQs are usually available for PCI devices.

IRQ assignments for this motherboard

 

A

B

C

D

E

F

G

H

PCIEx1_1 slot

shared

shared

shared

shared

–

–

–

–

PCIEx1_2 slot

shared

shared

shared

shared

–

–

–

–

PCIEx16 slot

shared

shared

shared

shared

–

–

–

–

USB 1.1 controller 1

–

–

–

–

–

–

–

shared

USB 1.1 controller 2

–

–

–

shared

–

–

–

–

USB 1.1 controller 3

–

–

shared

–

–

–

–

–

USB 1.1 controller 4

shared

–

–

–

–

–

–

–

USB 1.1 controller 5

shared

–

–

–

–

–

–

–

USB 1.1 controller 6

–

–

–

–

–

shared

–

–

USB 1.1 controller 7

–

–

shared

–

–

–

–

–

USB 2.0 controller 1

–

–

–

–

–

–

–

shared

USB 2.0 controller 2

–

–

shared

–

–

–

–

–

IDE port

shared

–

–

–

–

–

–

–

HD audio

–

–

–

–

–

–

shared

–

LAN

–

shared

–

–

–

–

–

–

Onchip SATA 1

–

–

shared

shared

–

–

–

–

Onchip SATA 2

–

–

shared

–

–

–

–

–

PCI card 1

shared

shared

shared

shared

–

–

–

–

PCI card 2

shared

shared

shared

shared

–

–

–

–

PCI card 3

shared

shared

shared

shared

–

–

–

–

ASUS P5Q SE Plus

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