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Standard interrupt assignments, Irq assignments for this motherboard – Asus A8V-VM User Manual

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ASUS A8V-VM

Standard interrupt assignments

IRQ

Priority

Standard Function

0

1

System Timer

1

Keyboard Controller

-

Programmable interrupt

3

11

Communications Port (COM)*

4

1

-

5

13

IRQ holder for PCI steering*

6

14

Floppy Disk Controller

15

Printer Port (LPT1)*

8

3

System CMOS/Real Time Clock

9

4

IRQ holder for PCI steering*

10

5

MIDI port*

11

6

IRQ holder for PCI steering*

1

PS/ Compatible Mouse Port*

13

8

Numeric Data Processor

14

9

Primary IDE Channel

15

10

Secondary IDE Channel

* These IRQs are usually available for ISA or PCI devices.

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.

A

B

C

D

E

F

G

H

PCI slot 1

shared —

PCI slot

— shared

PCI Express x16 slot

shared

shared

— shared

PCI Express x1 slot 1

shared

shared

— shared

Onboard USB controller 0

shared —

Onboard USB controller 1

shared —

Onboard USB controller

— shared

Onboard USB controller 3

— shared —

Onboard EHCI controller

shared —

Onboard SATA Controller

— shared

Onboard Audio Controller

— shared

Onboard LAN

shared —

Integrated graphics shared —