3 interrupt assignments, Irq assignments for this motherboard, Standard interrupt assignments – Asus P5N-E SLI User Manual
Page 37

ASUS P5N-E SLI
1-23
1.8.3 Interrupt assignments
* These IRQs are usually available for ISA or PCI devices.
IRQ assignments for this motherboard
A
B
C
D
E
F
G
H
PCI Express x16 slot 1
—
—
—
— shared —
—
—
PCI Express x16 slot 2
—
—
—
— shared —
—
—
PCI Express x1 slot 1
—
—
—
—
—
— shared —
PCI slot 1
shared —
—
—
—
—
—
—
PCI slot 2
— shared
—
—
—
—
—
—
Onboard 1394
—
—
shared —
—
—
—
—
Onboard Ext SATA
—
—
—
—
— shared —
—
Onboard USB1.0 controller
— shared
—
—
—
—
—
—
Onboard USB2.0 controller
—
—
Onboard USB2.0 controller
—
—
—
—
—
—
—
—
— shared
Onboard SATA0 controller
shared —
—
—
—
—
—
—
Onboard SATA1 controller
—
—
—
—
—
—
—
shared
shared
shared
Onboard LAN
shared —
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Onboard IDE controller
shared —
—
—
—
—
—
—
Onboard Audio controller
shared —
—
—
—
—
—
—
Standard interrupt assignments
IRQ
Priority
Standard Function
0
1
System Timer
1
2
Keyboard Controller
2
—
Re-direct to IRQ#9
4
12
Communications Port (COM1)*
5
13
IRQ holder for PCI steering*
6
14
Floppy Disk Controller
7
15
Printer Port (LPT1)*
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
PS/2 Compatible Mouse Port*
13
8
Numeric Data Processor
14
9
Primary IDE Channel
15
10
Secondary IDE Channel