2.5.3
Interrupt assignments
IRQ
Priority
0
1
1
2
2
–
3
11
4
12
5
13
6
14
7
15
8
6
9
4
10
5
11
6
12
7
13
8
14
9
15
10
* These IRQs are usually available for ISA or PCI devices.
IRQ assignments for this motherboard
PCI slot 1
PCI slot 2
PCI slot 3
Onboard IDE (JMicron
Onboard 1394
Onboard LAN1
Onboard LAN2
PCIE x16 1
PCIE x16 2
PCIE x1
PCIE x1
USB controller 1
USB controller 2
USB controller 3
USB controller 4
USB 2.0 controller
Serial ATA
IDE
HD Audio
ASUS P5W DH Deluxe
Standard function
System Timer
Keyboard Controller
Redirect to IRQ#9
IRQ Holder for PCI Steering*
Communications Port (COM1)*
IRQ Holder for PCI Steering*
Floppy Disk Controller
Printer Port (LPT1)*
System CMOS/Real Time Clock
IRQ Holder for PCI Steering*
IRQ Holder for PCI Steering*
IRQ Holder for PCI Steering*
PS/2 Compatible Mouse Port*
Numeric Data Processor
Primary IDE Channel
Secondary IDE Channel
A
B
–
–
–
–
–
)
–
shared
®
–
–
–
–
shared
–
shared
–
shared
–
shared
–
–
–
shared
–
–
–
shared
–
–
shared
–
–
–
–
–
–
–
–
–
–
C
D
E
–
–
–
shared
–
–
–
–
–
–
–
–
–
–
–
–
shared
–
shared
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
shared
–
–
–
–
–
–
shared
–
–
–
shared
–
–
–
–
–
–
–
shared
–
F
G
H
–
–
–
shared
–
–
–
shared
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
shared
–
shared
–
–
–
–
2-2