Dell E28S Series, Owner'S Manual, Page: 204 / 220

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If the problem persists, use another connector on the switch or hub.
4. Ensure that the appropriate drivers are installed and the protocols are bound. For more
information, see the NIC documentation.
5. Enter System Setup and confirm that the NIC ports are enabled on the Integrated Devices
screen.
6. Ensure that all the NICs, hubs, and switches on the network are set to the same data
transmission speed and duplex. For more information, 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.
After you finish
If the problem persists, see the Getting help section.
Troubleshooting a wet system
Before you begin
CAUTION Many repairs may only be done by a certified service technician. You should only
perform troubleshooting and simple 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 instructions
that are shipped with your product.
Procedure
1. 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:
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Power supply unit(s)
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Optical drive
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Hard drives
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Hard drive backplane
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USB memory key
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Hard drive tray
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Cooling shroud
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Expansion card risers (if installed)
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Expansion cards
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Cooling fan assembly (if installed)
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Cooling fans
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Memory modules
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Processor(s) and heat sink(s)
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System board
4. Let the system dry thoroughly for at least 24 hours.
5. Reinstall the components you removed in step 3 except the expansion cards.
Troubleshooting your system
204 Dell PowerEdge R430 Owner's Manual