Asus P5N73-AM - Manual (Page 34)

1-22 Chapter 1: Product introduction
1.8.3 Interrupt assignments
Standard interrupt assignments
IRQ Standard Function
0 High precision event timer
1 Standard 101/102-key or Microsoft PS/2 keyboard
4 Communicators Port (COM1)
6 Standard floppy disk controller
8 High precision event timer
9 Microsoft ACPI-Compliant System
12 PS/2 Compatible Mouse
13 Numeric data processor
11 NVIDIA nForce PCI System Management
20 Standard OpenHCD USB Host Controller
21 Microsoft UAA Bus Driver for High Definition Audio
21 Standard Dual Channel PCI IDE Controller
22 NVIDIA GeForce 7050 / nForce 610i
22 Standard Enhanced PCI to USB Host Controller
23 NVIDIA Network Bus Enumerator
* These IRQs are usually available for ISA or PCI devices.
1.8.2 Configuring an expansion card
After installing the expansion card, configure it by adjusting the software settings.
1. Turn on the system and change the necessary BIOS settings, if any. See
Chapter 2 for information on BIOS setup.
2. Assign an IRQ to the card. Refer to the tables on the next page.
3. Install the software drivers for the expansion card.