6. Ensure that all the NICs, hubs, and switches on the network are set to the same data transmission speed and duplex. For moreinformation, see the documentation for each network device.7. Ensure that all network cables are of the proper type and do not exceed the maximum length.Next stepsIf the problem persists, see the Getting help section.Related linksGetting helpUsing system diagnosticsTroubleshooting a wet systemPrerequisitesCAUTION: 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 supportteam. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safetyinstructions that 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. Remove the following components (if installed) from the system:• Power supply unit(s)• Optical drive• Hard drives• Hard drive backplane• USB memory key• Hard drive tray• Cooling shroud• Expansion card risers (if installed)• Expansion cards• Cooling fan assembly (if installed)• Cooling fans• Memory modules• Processor(s) and heat sink(s)• System board4. Let the system dry thoroughly for at least 24 hours.5. Reinstall the components you removed in step 3 except the expansion cards.6. Install the system cover.7. Turn on the system and attached peripherals.If the problem persists, see the Getting help section.8. If the system starts properly, turn off the system, and reinstall all the expansion cards that you removed.9. Run the appropriate diagnostic test. For more information, see the Using system diagnostics section.Next stepsIf the tests fail, see the Getting help section.Related linksGetting helpUsing system diagnostics165
