6. Ensure that the NICs, hubs, and switches on the network are all set to the same data transmissionspeed and duplex. 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.If all troubleshooting fails, see Getting Help.Troubleshooting A Wet SystemCAUTION: 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 came with the product.1. Turn off the system and attached peripherals, and disconnect the system from the electrical outlet.2. Open the system.3. Disassemble the following components from the system:• Hard drives• Expansion cards• Power supply• System fan• Processor and heat sink• Memory modules4. Let the system dry thoroughly for at least 24 hours.5. Reinstall the components you removed in step 3.6. Close the system.7. Turn on the system and attached peripherals.If the system does not start properly, see Getting Help.8. Run the appropriate diagnostic test. For more information, see Using System Diagnostics.If the tests fail, see Getting Help.Troubleshooting A Damaged SystemCAUTION: 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 came with the product.1. Turn off the system and attached peripherals, and disconnect the system from the electrical outlet.2. Open the system.3. Ensure that the following components are properly installed:• Expansion cards• Power supply• System fan• Processor and heat sink65