Asus P5W64 WS 2.5.3Interrupt assignments, Standard interrupt assignments, IRQ assignments for this motherboard

2.5.3Interrupt assignments

Standard interrupt assignments

I R Q	Priority	Standard Function
0	1	System Timer
1	2	Keyboard Controller
2	—	Re-direct to IRQ#9
3	11	IRQ holder for PCI steering*
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

* These IRQs are usually available for ISA or PCI devices.

IRQ assignments for this motherboard

	A	B	C	D	E	F	G	H
PCI slot 1	—	—	—	—	—	shared	—	—
PCI slot 2	—	—	—	—	—	—	shared	—
PCIX slot 1	—	—	shared	—	—	—	—	—
PCIX slot 2	—	—	—	shared	—	—	—	—
Onboard SATA	shared	—	—	—	—	—	—	—
Onboard 1394	—	—	—	—	—	shared	—	—
Onboard LAN 1/2	shared	—	—	—	—	shared	—	—
PCIE x16 1	shared	—	—	—	—	—	—	—
PCIE x16 2	shared	—	—	—	—	—	—	—
USB controller 1	shared	—	—	—	—	—	—	—
USB controller 2	—	shared	—	—	—	—	—	—
USB controller 3	—	—	shared	—	—	—	—	—
USB controller 4	—	—	—	shared	—	—	—	—
USB 2.0 controller	shared	—	—	—	—	—	—	—
Serial ATA	—	shared	—	—	—	—	— shared
HD Audio	shared	—	—	—	—	—	—	—

ASUS P5W64 WS Professional 2 - 21