122 Troubleshooting Your System12 For each expansion card you removed in step 9, perform thefollowing steps:a Turn off the system and attached peripherals, and disconnect thesystem from the electrical outlet.b Open the system. See "Opening the System" on page 58.c Reinstall one of the expansion cards.d Close the system. See "Closing the System" on page 59.Troubleshooting ProcessorsCAUTION: Many repairs may only be done by a certified service technician.You should only perform troubleshooting and simple repairs as authorized inyour product documentation, or as directed by the online or telephone serviceand support team. Damage due to servicing that is not authorized by Dell isnot covered by your warranty. Read and follow the safety instructions thatcame with the product.1 Turn off the system and attached peripherals, and disconnect thesystem from the electrical outlet.2 Open the system. See "Opening the System" on page 58.3 Ensure that each processor and heat sink are properly installed.See "Installing the Processor" on page 66.4 Close the system. See "Closing the System" on page 59.5 Reconnect the system to the electrical outlet, and turn on the system andattached peripherals.6 If the problem is not resolved, turn off the system and attachedperipherals, and disconnect the system from the electrical outlet.7 Open the system. See "Opening the System" on page 58.8 Remove processor 2. See "Removing the Processor" on page 64.9 Close the system. See "Closing the System" on page 59.10 Reconnect the system to the electrical outlet, and turn on the systemand attached peripherals.11 If the problem is not resolved, turn off the system and attachedperipherals, and disconnect the system from the electrical outlet.12 Open the system. See "Opening the System" on page 58.
