Irq Assignment Conflicts - Dell PowerEdge C8000 Hardware Owner's Manual

Dell poweredge c8000 hardware owner's manual
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IRQ Assignment Conflicts

Most PCI devices can share an IRQ with another device, but they cannot use
an IRQ simultaneously. To avoid this type of conflict, see the documentation
for each PCI device for specific IRQ requirements.
IRQ Line Assignment
IRQ0
8254 timer
IRQ1
Keyboard controller
IRQ2
Cascade for IRQ9
IRQ3
Default for COM2
IRQ4
Default for COM1
IRQ5
PCI IRQ pool definition
IRQ6
PCI IRQ pool definition
IRQ7
PCI IRQ pool definition
PCI IRQ pool definition is the BIOS code assigned at run time.
180
Troubleshooting
IRQ Line
Assignment
IRQ8
Real-time clock
IRQ9
PCI IRQ pool definition
IRQ10
PCI IRQ pool definition
IRQ11
PCI IRQ pool definition
IRQ12
Mouse controller
IRQ13
Processor
IRQ14
Primary IDE controller
IRQ15
Secondary IDE controller

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