Standard Interrupt Assignments; Irq Assignments For This Motherboard - Asus M2N-X PLUS User Manual

Standard interrupt assignments

IRQ
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
* These IRQs are usually available for ISA or PCI devices.

IRQ assignments for this motherboard

PCI slot 1
PCI slot 2
PCI slot 3
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.
1-18
Priority Standard Function
1 System Timer
2 Keyboard Controller
– Re-direct to IRQ#9
11 IRQ holder for PCI steering*
12 Communications Port (COM1)*
13 IRQ holder for PCI steering*
14 Floppy Disk Controller
15 Printer Port (LPT1)*
3 System CMOS/Real Time Clock
4 IRQ holder for PCI steering*
5 IRQ holder for PCI steering*
6 IRQ holder for PCI steering*
7 PS/2 Compatible Mouse Port*
8 Numeric Data Processor
9 Primary IDE Channel
10 Secondary IDE Channel
A
used
—
—
B C D
— — —
used — —
— used —
Chapter 1: Product introduction