Standard Interrupt assignments

IRQ

Priority

Standard function

0

1

System Timer

1

2

Keyboard Controller

2

-

Programmable Interrupt

4

12

Communications Port (COM1)

5

13

IRQ Holder for PCI Steering

6

14

Reserved

7

15

Reserved

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

Reserved

13

8

Numeric Data Processor

14

9

Primary IDE Channel

IRQ assignments for this motherboard

 

A

B

C

D

E

F

G

H

PCIEx16_1

shared

PCIEx16_2

 

shared

PCIEx16_3

shared

PCIEx16_4

shared

PCIEx1_1

shared

PCI1

shared

VIA1394

shared

Asmedia USB3.0

shared

LAN1 (82574)

shared

LAN2 (82574)

shared

SATA Controller 1

shared

SATA Controller 2

shared

USB 2.0 Controller 1

shared

USB 2.0 Controller 2

shared

HD Audio

shared

I.G.D. DT

shared

ASUS P8B WS

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