Standard Interrupt Assignments; Irq Assignments For This Motherboard - Asus A7N8X-XE User Manual

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

PCI slot 1
PCI slot 2
PCI slot 3 used
PCI slot 4
PCI slot 5
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.
ASUS A7N8X-XE Motherboard
A B
— —
— —
—
— used
— —
C D
shared —
— used
— —
— —
shared —
1-13