Troubleshooting Your System 189Troubleshooting the MicroprocessorsProblem• Error message indicates a processor problem.• Front-panel status LCD indicates a problem with the processors or systemboard.• A heat sink is not installed for each processor.ActionCAUTION: Only trained service technicians are authorized to remove the systemcover and access any of the components inside the system. Before performing anyprocedure, see your Product Information Guide for complete information aboutsafety precautions, working inside the system and protecting against electrostaticdischarge.1 If possible, run the appropriate online diagnostics test. See "Using DellPowerEdge Diagnostics" on page 193.2 Turn off the system and attached peripherals, and disconnect the systemfrom the electrical outlet.3 Open the system. See "Opening the System" on page 68.4 Remove the expansion card shroud. See "Removing the Expansion CardShroud" on page 72.5 Remove the processor shroud. See "Removing the Processor Shroud" onpage 72.6 Ensure that each processor and heat sink is properly installed. See"Installing a Processor" on page 136.7 Install the processor shroud. See "Installing the Processor Shroud" onpage 74.8 Install the expansion card shroud. See "Installing the Expansion CardShroud" on page 75.9 Close the system. See "Closing the System" on page 70.10 Reconnect the system to the electrical outlet, and turn on the system andattached peripherals.