System interrupt specifications
Hardware IRQ
System function
IRQ0
System timer
IRQ1
Standard 101-/102-Key or Microsoft® Natural PS/2 Keyboard
IRQ8
System CMOS/real-time clock
IRQ9 *
Microsoft ACPI-compliant system
IRQ12
Synaptics PS/2 TouchPad
IRQ13
Numeric data processor
IRQ14
Primary IDE channel
IRQ15
Intel® 82801G (ICH7 Family) SMBus Controller—27DA
IRQ16
Broadcom 802.11b/g WLAN no. 2
Intel 82801G (ICH7 Family) PCI Express Root Port—27D0
Intel 82801G (ICH7 Family) USB Universal Host Controller—27CB
Microsoft UAA Bus Driver for High Definition Audio
Mobile Intel 945 Express Chipset Family
IRQ17
Intel 82801G (ICH7 Family) PCI Express Root Port—27D2
IRQ18
Intel 82801G (ICH7 Family) USB Universal Host Controller—27CA
IRQ19
Intel 82801G (ICH7 Family) USB Universal Host Controller—27C9
IRQ23
Intel 82801G (ICH7 Family) USB Universal Host Controller—27C8
Intel 82801G (ICH7 Family) USB2 Enhanced Host Controller—27CC
* Default configuration
System interrupt specifications 77