Standard interrupt assignments, Irq assignments for this motherboard – Asus V2-PE3 User Manual

Page 29

Advertising
background image

2-13

ASUS Vintage V2-PE3

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.

Standard interrupt assignments

IRQ

Priority

Standard Function

0

1

System Timer

1

2

Keyboard Controller

2

-

Re-direct to IRQ#9

3

11

Communications Port (COM2)*

4

12

Communications Port (COM1)*

5

13

IRQ holder for PCI steering*

6

14

Floppy Disk Controller

7

15

Printer Port (LPT1)*

8

3

System CMOS/Real Time Clock

9

4

IRQ holder for PCI steering*

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

15

10

Secondary IDE Channel

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

IRQ assignments for this motherboard

A

B

C

D

E

F

G

H

PCI slot 1

shared —

PCI slot 2

— shared

PCI slot 3

shared —

Onboard USB controller 0-1

shared —

Onboard USB controller 2-3

shared —

Onboard USB controller 4-5

— shared

Onboard USB controller 6-7

— shared

Onboard USB 2.0 controller

shared —

Onboard AC `97 Audio

shared —

Onboard PCI LAN

— shared —

Onboard PCI 1394

— shared —

AGP Slot

shared —

Advertising