Asus M2N68-CM - Manual (Page 33)

ASUS M2N68-CM 1-21
* These IRQs are usually available for ISA or PCI devices.
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.
Interrupt assignments
IRQ Standard function
0 High precision event timer
1 Standard 101/102-Key or Microsoft Natural PS/2 keyboard
4 Communications Port (COM1)*
6 Standard floppy disk controller
8 High precision event timer
9 Microsoft ACPI-Compliant System
10 NVIDIA nForce PCI System Management
11 PCI Device
13 Numeric data processor
20 NVIDIA Network Bus Enumerator
21 Standard Enhanced PCI to USB Host Controller
21 Standard Dual Channel PCI IDE Controller
22 Standard Enhanced PCI to USB Host Controller
22 NVIDIA GeForce 7050 PV / NVIDIA nForce 630a
23 Standard OpenHCD USB Host Controller
23 Standard OpenHCD USB Host Controller
IRQ assignments for this motherboard
A B C D
PCI slot 1 – shared – –
PCI slot 2 – shared – –
PCI Express x1 slot – shared – –
PCI Express x16 slot – shared – –