User`s guide

1-34 Hardware Specifications and Configurations
System Interrupt Specification
Hardware IRQ System function
IRQ0 High precision event timer
IRQ1 PS/2 Standard Keyboard
IRQ08 High precision event timer
IRQ13 Numeric data processor
IRQ 81-190 Microsoft APCI-Compliant System
IRQ16 High definition Audio conntroller
IRQ17 Standard Enhanced PCI to USB Host controller
IRQ18 Standard OpenHCD USB Host Controller
IRQ19 High definition Audio conntroller/Standard AHCI 1.0 Serial ATA
Controller