3 interrupt assignments, Standard interrupt assignments, Irq assignments for this motherboard – Asus Maximus Extreme User Manual
Page 49
ASUS Maximus Extreme
2-21
2.5.3
Interrupt assignments
Standard interrupt assignments
IRQ
Priority
Standard Function
0
1
System Timer
1
2
Keyboard Controller
2
—
Re-direct to IRQ#9
3
11
IRQ holder for PCI steering*
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 PCI devices.
IRQ assignments for this motherboard
A
B
C
D
E
F
G
H
PCI slot 1
shared —
—
—
—
—
—
—
PCI slot 2
— shared —
—
—
—
—
—
LAN(8001)
shared —
—
—
—
—
—
—
SATA(363)
shared —
—
—
—
—
—
—
LAN(8056)
— shared —
—
—
—
—
—
PCIE x16 1
shared —
—
—
—
—
—
—
PCIE x16 2
shared —
—
—
—
—
—
—
PCIE x1 1
— shared —
—
—
—
—
—
PCIE x1 2
shared —
—
—
—
—
—
—
PCIE x1 3
—
— shared —
—
—
—
—
USB controller 1
—
—
—
—
—
—
— shared
USB controller 2
—
—
— shared —
—
—
—
USB controller 3
—
— shared —
—
—
—
—
USB controller 4
shared —
—
—
—
—
—
—
USB controller 5
—
—
—
—
— shared —
—
USB controller 6
—
— shared —
—
—
—
—
USB 2.0 controller 1
—
—
—
—
—
—
— shared
USB 2.0 controller 2
—
— shared —
—
—
—
—
SATA controller 1
—
—
—
—
—
— shared —
SATA controller 2
—
—
—
—
—
— shared —