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Specifications
Maintenance and Service Guide 6–13
Table 6-10
System Interrupts
Hardware IRQ System Function
IRQ0 System timer
IRQ1 Standard 101-/102-Key or Microsoft Natural Keyboard
IRQ2 Cascaded
IRQ3 USB2 Enhanced Host Controller—24CD
IRQ4 COM1
IRQ5* Conexant AC—Link Audio
Data Fax Modem with SmartCP
IRQ6 Diskette drive
IRQ7* Parallel port
IRQ8 System CMOS/real-time clock
IRQ9* Microsoft ACPI-compliant system
IRQ10* Realtek RTL8139 Family PCI fast Ethernet Controller