Interrupt Assignments - Asus Maximus II Gene User Manual

2.5.3

Interrupt assignments

Standard interrupt assignments
IRQ Priority
0
1
2
4
5
6
7
8
9
10
11
12
13
14
* These IRQs are usually available for PCI devices.
IRQ assignments for this motherboard
P45/MCH
PCIE16_1
PCIE16_2
ICH
PCIE1_1
LAN
PCI_1
USB controller 1
USB controller 2
USB controller 3
USB controller 4
USB controller 5
USB controller 6
USB 2.0 controller 1
USB 2.0 controller 2
SATA controller 1
SATA controller 2
Audio Azalia
2-26
Standard function
1 System Timer
2 Keyboard Controller
– Redirect to IRQ#9
12 Communications Port (COM1)*
13 IRQ Holder for PCI Steering*
14 Reserved
15 Reserved
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 Reserved
8 Numeric Data Processor
9 Primary IDE Channel
24 25
shared –
– –
A
shared
–
shared
–
–
–
shared
–
–
–
–
–
–
–
26 27
– –
– –
B C D
– –
– shared –
– – –
– – –
– – shared
– shared –
– – –
– – –
– – shared
– – –
– shared –
– – –
– – –
– – –
28 29 30
– – –
– – shared
E F
– –
– –
– –
– –
– –
– –
– –
– shared
– –
– –
– –
shared –
shared –
– –
Chapter 2: Hardware information
31
–
–
G H
– –
– –
– –
– shared
– –
– –
– –
– –
– –
– shared
– –
– –
– –
shared –