GUID-B1932160-4818-488E-B9B8-B71C4380C441Troubleshooting a damaged systemPrerequisitesCAUTION: Many repairs may only be done by a certified service technician. You should onlyperform troubleshooting and simple repairs as authorized in your product documentation, or asdirected by the online or telephone service and support team. Damage due to servicing that isnot authorized by Dell is not covered by your warranty. Read and follow the safety instructionsthat are shipped with your product.Steps1. Turn off the system and attached peripherals, and disconnect the system from the electrical outlet.2. Remove the system cover.3. Ensure that the following components are properly installed:• cooling shroud• expansion card risers (if installed)• expansion cards• power supply unit(s)• cooling fan assembly (if installed)• cooling fans• processor(s) and heat sink(s)• memory modules• hard drive carriers/cage• hard drive backplane4. Ensure that all cables are properly connected.5. Install the system cover.6. Run the appropriate diagnostic test. For more information, see the Using system diagnostics section.Next stepsIf the problem persists, see the Getting help section.Related LinksGetting helpUsing system diagnosticsGUID-9213BA37-8512-4024-8F90-8CC85EF46558Troubleshooting the system batteryPrerequisitesCAUTION: Many repairs may only be done by a certified service technician. You should onlyperform troubleshooting and simple repairs as authorized in your product documentation, or asdirected by the online or telephone service and support team. Damage due to servicing that isnot authorized by Dell is not covered by your warranty. Read and follow the safety instructionsthat are shipped with your product.NOTE: If the system is turned off for long periods of time (for weeks or months), the NVRAM maylose its system configuration information. This situation is caused by a defective battery.181