Standard interrupt assignments, Irq assignments for this motherboard – Asus A8N-SLI User Manual
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A S U S A 8 N - S L I
A S U S A 8 N - S L I
A S U S A 8 N - S L I
A S U S A 8 N - S L I
A S U S A 8 N - S L I
1 - 1 5
1 - 1 5
1 - 1 5
1 - 1 5
1 - 1 5
Standard interrupt assignments
Standard interrupt assignments
Standard interrupt assignments
Standard interrupt assignments
Standard interrupt assignments
I R Q
I R Q
I R Q
I R Q
I R Q
P r i o r i t y
P r i o r i t y
P r i o r i t y
P r i o r i t y
P r i o r i t y
S t a n d a r d F u n c t i o n
S t a n d a r d F u n c t i o n
S t a n d a r d F u n c t i o n
S t a n d a r d F u n c t i o n
S t a n d a r d F u n c t i o n
0
1
System Timer
1
2
Keyboard Controller
2
–
Re-direct 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
* These IRQs are usually available for ISA or PCI devices.
IRQ assignments for this motherboard
IRQ assignments for this motherboard
IRQ assignments for this motherboard
IRQ assignments for this motherboard
IRQ assignments for this motherboard
A
A
A
A
A
B
B
B
B
B
C
C
C
C
C
D
D
D
D
D
E
EE
EE
F
FF
FF
G
G
G
G
G
H
H
H
H
H
PCI slot 1
shared
—
—
—
—
—
—
—
PCI slot 2
—
shared
—
—
—
—
—
—
PCI slot 3
—
—
shared
—
—
—
—
—
Onboard USB 1.0 controller
shared
—
—
—
—
—
—
—
Onboard USB 2.0 controller
shared
—
—
—
—
—
—
—
Onboard LAN1
shared
—
—
—
—
—
—
—
Onboard LAN2
—
shared
—
—
—
—
—
—
Onboard PCI SATA RAID (SI)
—
—
—
shared
—
—
—
—
Onboard 1394a
shared
—
—
—
—
—
—
—
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.