Irq Assignment Conflicts - Dell PowerEdge C6220 Hardware Owner's Manual

12 Remove the system-board assembly. See "Removing a System-Board
Assembly" on page 124.
13 Replace processor 1 with processor 2. See "Installing a Processor" on
page 131.
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 269.

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
IRQ0
IRQ1
IRQ2
IRQ3
IRQ4
IRQ5
IRQ6
IRQ7
IRQ8
IRQ9
IRQ10
IRQ11
IRQ12
IRQ13
IRQ14
IRQ15
NOTE: PCI_IRQ_POOL_DEFINITION means BIOS code assign in runtime.
254 | Troubleshooting Your System
Assignment
8254 timer
Keyboard controller
Cascade for IRQ9
Serial port (COM2) or PCI_IRQ_POOL_DEFINITION
Serial port (COM1) or PCI_IRQ_POOL_DEFINITION
PCI_IRQ_POOL_DEFINITION
PCI_IRQ_POOL_DEFINITION
PCI_IRQ_POOL_DEFINITION
RTC
PCI_IRQ_POOL_DEFINITION
PCI_IRQ_POOL_DEFINITION
PCI_IRQ_POOL_DEFINITION
Mouse controller
Processor
Primary IDE controller
Secondary IDE controller