320 | Troubleshooting Your System
12 Remove the system-board assembly. See “Removing a System-Board
Assembly” on page 163.
13 Replace processor 1 with processor 2. See “Installing a Processor” on
page 171.
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 339.
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.