6–12
Maintenance and Service Guide
Specifications
Table 6-8
System Interrupts
Hardware IRQ
System Function
IRQ0
System timer
IRQ1
Quick Launch buttons
IRQ2
Cascaded
IRQ3
USB2 Enhanced Host Controller—24CD
IRQ4
COM1
IRQ5*
Conexant AC—Link Audio
SMBus Controller—24C3
Data Fax Modem with SmartCP
IRQ6
Diskette drive
IRQ7*
Parallel port
IRQ8
System CMOS/real-time clock
IRQ9*
Microsoft ACPI-compliant system
IRQ10*
USB UHCI controller—24C2
GM/GME Graphic Controller
Realtek RTL8139 Family PCI fast Ethernet Controller
IRQ11
USB EHCI controller—24CD
USB UHCI controller—24C4
USB UHCI controller—24C7
Pro/Wireless 2200BG
TI OHCI 1394 host controller
TI PCI1410 CardBus controller
*Default configuration
✎
ExpressCard may assert IRQ3, IRQ4, IRQ5, IRQ7, or IRQ20.
Summary of Contents for Compaq Presario,Presario V3000T
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