2-15
ASUS V-Series P5G31
* These IRQs are usually available for PCI devices.
IRQ assignments for this motherboard
A
B
C
D
E
F
G
H
PCI1
—
—
—
shared —
—
—
—
PCI2
shared
—
—
—
—
—
—
—
PCIEX16_1
shared
—
—
—
—
—
—
—
PCIEX1_1
shared
—
—
—
—
—
—
—
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 HD
audio
shared
—
—
—
—
—
—
—
Onboard LAN —
shared —
—
—
—
—
—
IRQ
Priority
Standard function
0
1
System Timer
1
2
Keyboard Controller
2
—
Re-direct to IRQ#9
3
10
Communications Port (COM1)
4
11
IRQ holder for PCI steering*
5
12
Standard Floppy Disk Controller
6
13
Printer Port (LPT1)
7
3
System CMOS/Real Time Clock
8
4
IRQ holder for PCI steering*
9
5
IRQ holder for PCI steering*
10
6
IRQ holder for PCI steering*
11
7
PS/2 Compatible Mouse Port
12
8
Numeric Data Processor
13
9
Primary IDE Channel
Standard interrupt assignment