Asus P5E3 Standard interrupt assignments, IRQ assignments for this motherboard, IRQ, 2.5.3Interrupt assignments

2.5.3Interrupt assignments

Standard interrupt assignments

IRQ Priority Standard Function

01 System Timer

12 Keyboard Controller

2—­ Re-direct to IRQ#9

39 IRQ holder for PCI steering*

412 Communications Port (COM1)*

513 IRQ holder for PCI steering*

614 Floppy Disk Controller

715 Printer Port (LPT1)*

83 System CMOS/Real Time Clock

94 IRQ holder for PCI steering*

105 IRQ holder for PCI steering*

116 IRQ holder for PCI steering*

127 PS/2 Compatible Mouse Port*

138 Numeric Data Processor

1410 Primary IDE Channel

1511 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 (8110SC)	shared­	—	—	—	—	—­	—­	—­
SATA (363)	shared	—	—	—	—	—	—­	—­
LAN(8056)	—­	shared	—	—	—	—	—­	—­
PCIe x16 1	shared	—	—	—	—	—­	—­	—­
PCIe x16 2	shared	—	—	—	—	—­	—­	—­
PCIe x16 3	—	—	shared
PCIe x1 1	—	—	shared	—	—	—­	—­	—­
PCIe x1 2	—	—	—	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	—	—	—	—­	—­	—

2-18 Chapter 2: Hardware information