Switchable graphics system interrupt specifications
Hardware IRQ System function
IRQ0 System timer
IRQ1 Standard PS/2 keyboard
IRQ4 ENE CIR receiver
IRQ8 System CMOS/real-time clock
IRQ10 Intel 5 series/3400 chipset family SMBus controller — 3B30
IRQ12 Synaptics PS/2 TouchPad
IRQ13 Numeric data processor
IRQ16 Intel 5 series/3400 chipset family USB enhanced host controller — 3B3C
Intel 5 series/3400 chipset family PCI express root port 2 — 3B44
Intel management engine interface
Intel Graphics Media Accelerator HD
Intel processor PCI express root port 1 — 0045
IRQ17 High definition audio controller
Intel 5 series/3400 chipset family PCI express root port 1 — 3B42
IRQ19 Intel 5 series 4 port SASTA AHCI controller
Intel Turbo Boost technology drive
IRQ21 Intel 5 series/3400 chipset family USB enhanced host controller — 3B34
IRQ22 High definition audio controller
IRQ23 HP mobile data protection sensor
IRQ81–190 Microsoft ACPI-compliant system
IRQ-3 ATI Mobility Radeon HD 5470
IRQ-2 Intel Wifi Link 1000 BGN
100 Chapter 6 Specifications ENWW
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