Acer TravelMate 8481T Acer TravelMate 8481, 8481T, 8481TG Notebook Service Gui - Page 50

System Interrupt Specification Hardware IRQ IRQ0 IRQ1 System Function Standard 101-/102-Key or Microsoft® Natural Keyboard Cascaded IRQ2 IRQ3 IRQ5* IRQ6 IRQ7* IRQ8 IRQ9* IRQ10* IRQ11 IRQ12 Intel 82801DB/DBM USB2 Enhanced Host Controller-24CD IRQ4 * Diskette drive  AHCI 1.0 SATA controller  SMBus  HD Audio controller  USB controller  Ethernet controller System CMOS/real-time clock System timer Microsoft ACPI-compliant system  VGA compatible controller  Communication controller  EHCI USB controller - 1C2D  SD Host controller  HD Audio controller  EHCI USB controller - 1C26 Synaptics PS/2 TouchPad IRQ13 Numeric data processor IRQ14 Primary IDE channel IRQ15 Secondary IDE channel *Default configuration; audio possible configurations are IRQ5, IRQ7, IRQ9, IRQ10, or none. NOTE: ExpressCards may assert IRQ3, IRQ4, IRQ5, IRQ7, IRQ9, IRQ10, IRQ11, or IRQ15. Either the infrared or the serial port may assert IRQ3 or IRQ4. 1-40