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ASUS P5N64 WS Professional 2-17
2.5.3 Interrupt assignments
IRQ assignments for this motherboard
A B C D E F G H
PCI 1 shared – – – – – – –
PCI 2 – shared – – – – – –
1394 – – – shared – – – –
LAN 1 – – shared – – – – –
LAN 2 – – – shared – – – –
Marvell 6121 – – – shared – – – –
Marvell 6320 shared – – – – – – –
PCIe x16 1 shared – – – – – – –
PCIe x16 2 shared – – – – – –
PCIe x16 3 – – shared – – – – –
PCIe x16 4 – shared – – – – – –
PCIe x1 – shared – – – – – –
Azalia shared – – – – – – –
USB controller 1 – shared – – – – – –
USB controller 2 – shared – – – – – –
SATA controller 0 shared – – – – – – –
SATA controller 1 shared – – – – – – –
SATA controller 2 shared – – – – – – –
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 IRQ holder for PCI steering*
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 IRQ holder for PCI steering*
15 10 IRQ holder for PCI steering*
* These IRQs are usually available for PCI devices.