System interrupt specifications (switchable graphics)
Hardware IRQ System function
IRQ0 System timer
IRQ1 Standard PS/2 Keyboard
IRQ7 Intel 5 Series/3400 Chipset Family SMBus Controller -3B30
IRQ8 System CMOS/real time clock
IRQ10 Network Controller
IRQ12 Synaptics PS/2 Port TouchPad
IRQ13 Numeric data processor
IRQ16 Intel 5 Series/3400 Chipset Family PCI Express Root Port 2 - 3B44
IRQ17 High Definition Audio Controller
Intel® 5 Series/3400 Chipset Family PCI Express Root Port 1 -3B42
IRQ19 Intel 5 Series 4 Port SATA AHCI Controller - 3B29
Intel Turbo Boost Technology Driver
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-2 Relatek PCIe GBE Family Controller
IRQ-3 ATI Mobility Radeon HD 5650
ENWW
System interrupt specifications (switchable graphics)
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