User Guide

ASUS A7N8X-XE Motherboard 1-13
Standard interrupt assignments
IRQ Standard Function
0 System Timer
1 Standard 101-102-key or microsoft natural keyboard
2 Programmable interrupt controller
3 ACPI IRQ hold for PCI IRQ steering
4 Communications Port (COM1)
5 C-Media AC 97 audio device
6 Standard floppy disk controller
7 ECP printer port
8 System CMOS/Real Time Clock
9 SCI IRQ used by ACPI bus
10 ACPI IRQ holder for PCI IRQ steering
11 ACPI IRQ holder for PCI IRQ steering
12 PS/2 Mouse and Keyboard
13 Numeric Data Processor
14
Primary IDE controller
15 Secondary IDE Channel
IRQ assignments for this motherboard
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.
A B C D
PCI slot 1 — — shared —
PCI slot 2 — — — used
PCI slot 3 used — — —
PCI slot 4 — used — —
PCI slot 5 — — shared —