Asus P5GC-VM Pro - Manual (Page 34)

1-22 Chapter 1: Product introduction
1.8.3 Interrupt assignments
Standard interrupt assignments
IRQ Standard Function
0 System Timer
1 Keyboard Controller
2 Re-direct to IRQ#9
3 COM2
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 Microsoft ACPI-Compliant system
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
15 Slave IDE
* 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 Express X1 slot shared — — — — — — —
PCI Express x16 slot 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 controller — — — — — — shared —
Onboard SATA controller — — — — — — — shared
Onboard SMBus controller — — — — — — — shared
Onboard Azalia controller — — — shared — — — —
Onboard VGA shared — — — — — — —
Onboare LAN 8111C — shared — — — — — —
When using PCI cards on shared slots, ensure that the drivers support “Share
IRQ” or that the cards do not need IRQ assignments. Otherwise, conflicts will
arise between the two PCI groups, making the system unstable and the card
inoperable.