Hardware IRQ
IRQ0
IRQ1
IRQ2
IRQ3
IRQ4
IRQ5*
IRQ6
IRQ7*
IRQ8
IRQ9*
IRQ10*
Maintenance and Service Guide
Table 6-7
System Interrupts
System Function
System timer
Standard 101-/102-Key or Microsoft Natural Keyboard
Cascaded
Intel 82801DB/DBM USB2 Enhanced Host
Controller—24CD
COM1
Conexant AC—Link Audio
Intel 82801DB/DBM SMBus Controller—24C3
Data Fax Modem with SmartCP
Diskette drive
Parallel port
System CMOS/real-time clock
Microsoft ACPI-compliant system
Intel USB UHCI controller—24C2
Intel 82852/82855 GM/GME Graphic Controller
Realtek RTL8139 Family PCI fast Ethernet Controller
Specifications
6–9