3 interrupt assignments, Standard interrupt assignments, Irq assignments for this motherboard – Asus M2N DH User Manual
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ASUS M2N / M2N DH
2-
2.5.3
Interrupt assignments
Standard interrupt assignments
* These IRQs are usually available for ISA or PCI devices.
IRQ
Priority Standard function
0
1
System Timer
1
2
Keyboard Controller
2
–
Redirect to IRQ#9
4
12
Communications Port (COM1)*
5
13
IRQ Holder for PCI Steering*
6
14
Floppy Disk Controller
7
15
Printer Port (LPT1)*
8
3
System CMOS/Real Time Clock
9
4
IRQ Holder for PCI Steering*
10
5
IRQ Holder for PCI Steering*
11
6
IRQ Holder for PCI Steering*
12
7
PS/2 Compatible Mouse Port*
13
8
Numeric Data Processor
14
9
Primary IDE Channel
15
10
Secondary IDE Channel
A
B
C
D
E
F
G
H
PCI Slot 1
shared
-
-
-
--
-
-
-
PCI Slot 2
-
shared
-
-
-
-
-
-
PCI Slot 3
-
-
shared
-
-
-
-
-
PCIe x16 slot
-
-
-
-
-
-
-
shared
PCIe x1 slot 1
-
-
-
-
-
shared
-
-
PCIe x1 slot 2
-
-
-
-
shared
-
-
-
IRQ assignments for this motherboard