Interrupt Assignments - Asus P5B-MX - Motherboard - Micro ATX User Manual

1.8.3

Interrupt assignments

Standard interrupt assignments
IRQ
0
1
2
3
4
5
6
7
8
9
10
11
12
13
* These IRQs are usually available for PCI devices.
IRQ assignments for this motherboard
PCI1
PCI2
PCIEX16_1
PCIEX1_1
PCIE WiFi
Onboard USB controller 1
Onboard USB controller 2
Onboard USB controller 3
Onboard USB controller 4
Onboard USB 2.0 controller
Onboard HD audio
Onboard LAN
1-24
Priority
1
2
—
10
11
12
13
3
4
5
6
7
8
9
A
—
shared
shared
shared
—
—
—
—
shared
—
shared
—
Standard Function
System Timer
Keyboard Controller
Re-direct to IRQ#9
Communications Port (COM1)
IRQ holder for PCI steering*
Standard Floppy Disk Controller
Printer Port (LPT1)
System CMOS/Real Time Clock
IRQ holder for PCI steering*
IRQ holder for PCI steering*
IRQ holder for PCI steering*
PS/2 Compatible Mouse Port
Numeric Data Processor
Primary IDE Channel
B C D
— — shared
— — —
— — —
— — —
— shared —
— — —
— — shared
— shared —
— — —
— — —
— — —
Used — —
E F G
— — —
— — —
— — —
— — —
— — —
— — —
— — —
— — —
— — —
— — —
— — —
— — —
Chapter 1: Product introduction
H
—
—
—
—
—
shared
—
—
—
shared
—
—