Asus P5LD2-C/IPAT - Manual (Page 38)

2-18 Chapter 2: Hardware information
2.5.3 Interrupt assignments
Standard interrupt assignments
IRQ Standard Function
0 System Timer
1 Keyboard Controller
2 Re-direct to IRQ#9
3 —
4 Communications Port (COM1)*
5 IRQ holder for PCI steering*
6 Floppy Disk Controller
7 Printer Port (LPT1)*
8 System CMOS/Real Time Clock
9 IRQ holder for PCI steering*
10 IRQ holder for PCI steering*
11 IRQ holder for PCI steering*
12 PS/2 Compatible Mouse Port*
13 Numeric Data Processor
14 Primary 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 — —
PCI slot 3 — — — — — — shared —
PCIe x16 slot shared — — — — — — —
PCIe x1 slot 1 shared — — — — — — —
PCIe x1 slot 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 IDE port — — — — — — shared —
Onboard HD Audio controller — — — shared — — — —
Onboard LAN controller — shared — — — — — —