Irq Assignment Conflicts - Dell PowerEdge C8220 Hardware Owner's Manual

CAUTION:
You should only perform troubleshooting and simple repairs as
authorized in your product documentation, or as directed by the online or
telephone service and support team. Damage due to servicing that is not
authorized by Dell is not covered by your warranty. Read and follow the safety
instructions that came with the product.
If the problem is not resolved by replacing the battery, see "Getting Help"
on page 241.
NOTE:
Some software may cause the system time to speed up or slow down. If the
system seems to operate normally except for the time kept in the System Setup
program, the problem may be caused by software rather than by a defective
battery.

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 Serial port (COM2) or
PCI IRQ pool definition
IRQ4 Serial port (COM1) or
PCI IRQ pool definition
IRQ5 PCI IRQ pool definition
IRQ6 PCI IRQ pool definition
IRQ7 Reserved
PCI IRQ pool definition is the BIOS code assigned at run time.
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
Troubleshooting
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