3 interrupt assignments, These irqs are usually available for pci devices – Asus P5KPL/1600 User Manual
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ASUS P5KPL/1600
1-23
1.8.3
Interrupt assignments
IRQ
Priority
Standard Function
0
1
System Timer
1
2
Keyboard Controller
2
—
—
3
11
IRQ holder for PCI steering*
4
12
Communications Port (COM1)
5
13
Standard IRQ holder for PCI steering
6
14
Floppy Disk Controller
7
15
Printer Port (LPT1)
8
3
System CMOS/Real Time Clock
9
4
Microsoft ACPI-Compliant Sytem
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
* These IRQs are usually available for PCI devices.
A
B
C
D
E
F
G
H
PCI1
—
—
—
— shared —
—
—
PCI2
—
—
—
—
— shared —
—
PCI3
—
—
—
—
—
— shared —
PCIEX16_1
shared —
—
—
—
—
—
—
PCIEX16_2
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
—
—
used
—
—
—
—
—
Standard interrupt assignments
IRQ assignments for this motherboard