Irq assignments for this motherboard, Standard interrupt assignments – Asus A7V400-MX User Manual

Page 21

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ASUS A7V400-MX motherboard user guide

1-11

IRQ assignments for this motherboard

A

B

C

D

PCI slot 1

shared

––

––

––

PCI slot 2

––

shared

––

––

PCI slot 3

––

––

shared

––

AGP slot

shared

––

––

––

Standard Interrupt Assignments

IRQ

Standard Function

0

System Timer

1

Keyboard Controller

2

Programmable Interrupt Controller

3*

USB Universal Host Controller

4*

Communications Port (COM1)

5*

Onboard Audio

6

Standard Floppy Disk Controller

7*

Printer Port (LPT1)

8

System CMOS/Real Time Clock

9*

Onboard LAN

10*

USB Universal Host Controller

11*

Onboard VGA

12*

PS/2 Compatible Mouse Port

13

Numeric Data Processor

14*

Ultra ATA Controller

15*

Secondary Ultra ATA Controller

*

These IRQs are usually available for ISA or PCI devices.

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