Irq assignments for this motherboard, Standard interrupt assignments – Asus A7V400-MX User Manual
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ASUS A7V400-MX motherboard user guide
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IRQ assignments for this motherboard
A
B
C
D
PCI slot 1
shared
––
––
––
PCI slot 2
––
shared
––
––
PCI slot 3
––
––
shared
––
AGP slot
shared
––
––
––
Standard Interrupt Assignments
IRQ
Standard Function
0
System Timer
1
Keyboard Controller
2
Programmable Interrupt Controller
3*
USB Universal Host Controller
4*
Communications Port (COM1)
5*
Onboard Audio
6
Standard Floppy Disk Controller
7*
Printer Port (LPT1)
8
System CMOS/Real Time Clock
9*
Onboard LAN
10*
USB Universal Host Controller
11*
Onboard VGA
12*
PS/2 Compatible Mouse Port
13
Numeric Data Processor
14*
Ultra ATA Controller
15*
Secondary Ultra ATA Controller
*
These IRQs are usually available for ISA or PCI devices.