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3 interrupt assignments, Irq assignments for this motherboard – Asus P5VD2-VM SE User Manual

Page 34

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1-22

Chapter 1: Product introduction

1.8.3

Interrupt assignments

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

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.

IRQ assignments for this motherboard

A

B

C

D

PCI slot 1

shared

PCI slot 2

shared

PCIe x 1 slot

fixed fixed fixed fixed

Onboard USB controller 1

shared

Onboard USB controller 2

shared

Onboard USB controller 3

shared

Onboard USB controller 4

shared

Onboard USB 2.0 controller

shared

Onboard LAN

shared

Onboard audio

shared

Onboard VGA

shared

IRQ

Priority Standard function

0

1

System Timer

1

2

Keyboard Controller

2

Redirect to IRQ#9

4

12

Communications Port (COM)*

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

PCI-E x1

12

7

PS/2 Compatible Mouse Port*

13

8

Numeric Data Processor

14

9

Primary IDE Channel

15

10

Secondary IDE Channel