3 interrupt assignments, Irq assignments for this motherboard, These irqs are usually available for pci devices – Asus P5N7A-VM User Manual
Page 37

ASUS P5N7A-VM
1-25
1.8.3
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
IRQ holder for PCI steering*
13
8
Numeric data processor
14
9
Primary IDE channel
15
10
Secondary IDE channel
* These IRQs are usually available for PCI devices.
PIRQ1 PIRQ2 PIRQ3 PIRQ4 PIRQ5 PIRQ6
PCI slot 1
shared shared shared shared
—
—
PCI slot 2
shared shared shared shared
—
—
PCI Express x16 slot
—
—
—
—
shared
—
PCI Express x1 slot
—
—
—
—
—
shared
IRQ assignments for this motherboard
MCP
_USB
MCP
_MAC
MCP
_AZA
MCP
_IGPU
MCP
_IDE
MCP
_USB2
MCP
_AHCI
Onboard USB controller
shared
—
—
—
—
—
—
Onboard USB 2.0 controller
—
—
—
—
—
shared
—
Onboard USB controller 1
shared
—
—
—
—
—
Onboard USB 2.0 controller 1
—
—
—
—
—
shared
—
Onboard LAN
—
shared
—
—
—
—
—
Onboard SATA controller
—
—
—
—
—
—
shared
Onboard HD Audido
—
—
shared
—
—
—
—
Onboard VGA
—
—
—
shared
—
—
—
Internal devices interrupt
External devices interrupt