Irq Assignment Conflicts - Dell PowerEdge C6320 Owner's Manual

5. Reconnect the system to the electrical outlet, and turn on the system and attached peripherals.
6. If the problem persists, turn off the system and attached peripherals, and disconnect the system from
the electrical outlet.
7. Remove the system-board assembly.
8. Remove processor 2.
9. Install the system-board assembly.
10. Reconnect the system to the electrical outlet, and turn on the system and attached peripherals.
If the problem persists, the processor is faulty. See
11. Turn off the system and attached peripherals, and disconnect the system from the electrical outlet.
12. Remove the system-board assembly.
13. Replace processor 1 with processor 2.
14. Repeat step 9 through step 11.
If you have tested both the processors and the problem persists, the system board is faulty. See
Getting help.

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.
Table 4. Assignment specific IRQ requirements
IRQ Line Assignment
8254 timer
IRQ0
Keyboard controller
IRQ1
Cascade for IRQ9
IRQ2
Serial port (COM2) or PCI_IRQ_POOL_DEFINITION
IRQ3
Serial port (COM1) or PCI_IRQ_POOL_DEFINITION
IRQ4
PCI_IRQ_POOL_DEFINITION
IRQ5
PCI_IRQ_POOL_DEFINITION
IRQ6
RESERVE
IRQ7
RTC
IRQ8
PCI_IRQ_POOL_DEFINITION
IRQ9
PCI_IRQ_POOL_DEFINITION
IRQ10
PCI_IRQ_POOL_DEFINITION
IRQ11
Mouse controller
IRQ12
Getting help.
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