Troubleshooting Your System 159• Memory modules4 Let the system dry thoroughly for at least 24 hours.5 Reinstall the processors and heat sinks, memory modules, power supplies,and cooling shroud.6 Close the system. See "Closing the System."7 Place the system upright and on its feet on a flat and stable surface,reconnect the system to the electrical outlet, and turn on the system andattached peripherals.If the system does not start properly, see "Getting Help."8 If the system starts properly, shut down the system and reinstall the rest ofthe components that you removed. See "Installing System Components."9 Run the appropriate online diagnostic test. See "Using Dell™ PowerEdge™Diagnostics."If the tests fail, see "Getting Help."Troubleshooting a Damaged SystemCAUTION: Many repairs may only be done by a certified service technician. Youshould only perform troubleshooting and simple repairs as authorized in yourproduct documentation, or as directed by the online or telephone service andsupport team. Damage due to servicing that is not authorized by Dell is not coveredby your warranty. Read and follow the safety instructions that came with theproduct.1 Turn off the system and attached peripherals, and disconnect the systemfrom the electrical outlet.2 Open the system. See "Opening the System."3 Ensure that the following components are properly installed:• Expansion cards• Power supplies• Fans• Processors and heat sinks• Memory modules• Hard-drive carriers