HP ZE4900 User Manual
Page 141
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Specifications
Maintenance and Service Guide
6–13
Table 6-11
System Interrupts
Hardware IRQ
System Function
IRQ0
System timer
IRQ1
Standard 101-/102-Key or Microsoft Natural Keyboard
IRQ2
Cascaded
IRQ3
Intel 82801DB/DBM USB2 Enhanced Host
Controller—24CD
IRQ4
COM1
IRQ5*
Conexant AC—Link Audio
Intel 82801DB/DBM SMBus Controller—24C3
Soft V92 Data Fax Modem with SmartCP
IRQ6
Diskette drive
IRQ7*
Parallel port
IRQ8
System CMOS/real time clock
IRQ9*
Microsoft ACPI-compliant system
IRQ10*
Intel USB UHCI controller—24C2
Intel 82852/82855 GM/GME Graphic Controller
Realtek RTL8139 Family PCI fast Ethernet Controller
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