Dell PowerEdge C6220 - Manual (Page 308)

308 | Troubleshooting Your System
system from the electrical outlet.
12 Remove the system-board assembly. See “Removing a System-Board
Assembly” on page 157.
13 Replace processor 1 with processor 2. See “Installing a Processor” on
page 164.
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” on page 324.
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 4-1. Assignment 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 RESERVE
IRQ8 RTC
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
NOTE: PCI_IRQ_POOL_DEFINITION means BIOS code assign in runtime.