User Manual

74 System Resources
B.5 Interrupt Request (IRQ) Lines
IRQ Lines APIC Mode
Table B-5: IRQ Lines APIC Mode
IRQ# Typical Interrupt Resource
0 System timer
1 Standard 101/102-Key or Microsoft Natural PS/2 Keyboard
2N/A
3N/A
4N/A
5 Communications Port (COM1)
6N/A
7 Communications Port (COM2)
8 System CMOS/real time clock
9 Microsoft ACPI-Compliant System
10 Communications Port (COM3)
11 Communications Port (COM4)
12 Microsoft PS/2 Mouse
13 Numeric data Processor
3 Intel 6 Series/C220 Series Chipset Family SMBus Controller-
16 Intel 6 Series/C220 Series Chipset Family PCI Express Root
16 Intel 6 Series/C220 Series Chipset Family USB Enhanced
16 Intel HD Graphics Family
16 Intel Management Engine Interface
17
Intel 6 Series/C220 Series Chipset Family PCI Express Root
19
Intel 6 Series/C220 Series Chipset Family 2 port Serial ATA
19
Intel 6 Series/C220 Series Chipset Family 4 port Serial ATA
19 Intel 6 Series/C220 Series Chipset Family PCI Express Root
19 Intel 82574L Gigabit Network Connection
20 Intel 82579LM Gigabit Network Connection
22 Microsoft UAA Bus Driver for High definition Audio
23 Intel 6 Series/C220 Series Chipset Family USB Enhanced