HP CQ40-417TU, CQ40-416TU manual System interrupt specifications, Hardware IRQ System function

System interrupt specifications

Hardware IRQ	System function
IRQ0	System timer
IRQ1	Standard 101-/102-Key or Microsoft® Natural Keyboard
IRQ8	System CMOS/real-time clock
IRQ9	Microsoft ACPI-compliant system
IRQ11	Intel (ICH9 Family) SMBus Controller
IRQ12	Alps PS/2 TouchPad pointing device (2-way) for 14-in LCD
IRQ13	Numeric data processor
IRQ16	Intel (ICH9 Family) USB Universal Host Controller—2937
	Intel (ICH9 Family) PCI Express Port 1—2940
	Intel (ICH9 Family) PCI Express Port 5—2948
	Mobile Intel 4 Series Express Chipset PCI Express Port 2—2A41
	nVIDIA GeForce G103 M
IRQ17	Intel (ICH9 Family) PCI Express Port 2—2942
	Intel (ICH9 Family) PCI Express Port 6—294A
	Intel (ICH9 Family) USB Universal Host Controller—2938
IRQ18	Intel (ICH9 Family) USB Universal Host Controller—2936
	Intel (ICH9 Family) USB2 Enhanced Host Controller—293C
IRQ19	Intel (ICH9 Family) PCI Express Port 4—2946
	Intel (ICH9 Family) USB Universal Host Controller—2939
	Realtek RTL8168C(P)/8111C(P) Family PCI-E Gigabit Ethernet NIC (NIDS 6.0)
IRQ20	Intel (ICH9 Family) USB2 Enhanced Host Controller—293A
IRQ21	Intel (ICH9MM/M-E Family) 4-port SATA AHCI Controller—2929
IRQ22	Intel (ICH9 Family) USB Universal Host Controller—2935
	High-definition audio controller

System interrupt specifications 95