102 Troubleshooting Your System4 Ensure that the appropriate drivers are installed and the protocols arebound. See the NIC's documentation.5 Enter the System Setup program and confirm that the NIC ports areenabled. See "Integrated Devices Screen" on page 29.6 Ensure that the NICs, hubs, and switches on the network are all set to thesame data transmission speed and duplex. See the documentation for eachnetwork device.7 Ensure that all network cables are of the proper type and do not exceed themaximum length.If all troubleshooting fails, see "Getting Help" on page 123.Troubleshooting a Wet 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" on page 45.3 Disassemble components from the system. See "Installing SystemComponents" on page 43.• Hard drives• USB memory key• Cooling shroud and expansion-card stabilizer• Expansion cards• Power supply• Cooling fan• Processor and heat sink• Memory modules4 Let the system dry thoroughly for at least 24 hours.
