Troubleshooting cooling fansRequisitos previosPRECAUCIÓN: Many repairs may only be done by a certified service technician. You should only perform troubleshooting andsimple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team.Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructionsthat are shipped with your product.NOTA: The fan number is referenced by the management software of the sistema. In the event of a problem with a particular fan,you can easily identify and replace it by noting down the fan numbers on the cooling fan assembly.1 Follow the safety guidelines listed in the Safety instructions section.2 Follow the procedure listed in the Before working inside your sistema section.Pasos1 Reseat the fan or the fan's power cable.2 Restart the sistema.Siguientes pasos1 Follow the procedure listed in the After working inside your sistema section.2 If the problem persists, see the Getting help section.Troubleshooting system memoryRequisitoPRECAUCIÓN: Many repairs may only be done by a certified service technician. You should only perform troubleshooting andsimple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team.Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructionsthat are shipped with your product.Pasos1 If the sistema is operational, run the appropriate diagnostic test. See the Using system diagnostics section for the available diagnostictests.If the diagnostic tests indicate a fault, follow the corrective actions provided by the diagnostic tests.2 If the sistema is not operational, turn off the sistema and attached peripherals, and unplug the sistema from the power source. Wait atleast for 10 seconds, and then reconnect the sistema to the power source.3 Turn on the sistema and attached peripherals, and note the messages on the screen.If an error message is displayed indicating a fault with a specific memory module, go to step 12.4 Enter System Setup, and check the system memory setting. Make any changes to the memory settings, if needed.If the memory settings match the installed memory but the problem still persists, go to step 12.5 Turn off the sistema and attached peripherals, and disconnect the sistema from the electrical outlet.6 Remove the sistema cover.7 Check the memory channels and ensure that they are populated correctly.NOTA: See the system event log or system messages for the location of the failed memory module. Reinstall the memorydevice.8 Reseat the memory modules in their sockets.9 Install the sistema cover.10 Enter System Setup and check the sistema memory setting.If the problem is not resolved, proceed with step 11.11 Remove the sistema cover.12 If a diagnostic test or error message indicates a specific memory module as faulty, swap or replace the module with a known workingmemory module.Solución de problemas del sistema 149