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12 chapter 1: product introduction – Asus K8V-F User Manual

Page 22

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Chapter 1: Product introduction

IRQ assignments for this motherboard

INT A

INT B

INT C

INT D

INT E

PCI slot 1

shared

––

––

––

––

PCI slot 2

––

shared

––

––

––

PCI slot 3

––

––

shared ––

––

PCI slot 4

––

––

––

shared ––

PCI slot 5

shared

––

––

––

––

Onboard 1394

shared

––

––

––

––

Serial ATA

––

––

––

––

shared

AGP slot

shared

––

––

––

––

Onboard Audio

––

––

shared ––

––

Standard interrupt assignments

IRQ

Priority

Standard Function

0

1

System Timer

1

2

Keyboard Controller

2

N/A

Programmable Interrupt

4*

12

Communications Port (COM1)

5*

13

Sound card (sometimes LPT2)

6

14

Floppy Disk Controller

7*

15

Printer Port (LPT1)

8

3

System CMOS/Real Time Clock

9*

4

ACPI Mode when used

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.

When using PCI cards on shared slots, ensure that the drivers support
“ShareIRQ” or that the cards do not need IRQ assignments. Otherwise, conflicts
willarise between the two PCI groups, making the system unstable and the
cardinoperable.

This manual is related to the following products: