100 Troubleshooting Your System
• Change the autonegotiation setting, if possible.
• Use another connector on the switch or hub.
If you are using a NIC card instead of an integrated NIC, see the 
documentation for the NIC card.
4
Ensure that the appropriate drivers are installed and the protocols are 
bound. See the NIC's documentation.
5
Enter the System Setup program and confirm that the NIC ports are 
enabled. See "Integrated Devices Screen" on page 31.
6
Ensure that the NICs, hubs, and switches on the network are all set to the 
same data transmission speed. 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" on page 119.
Troubleshooting a Wet System
 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 came with the 
product.
1
Turn off the system and attached peripherals, and disconnect the system 
from the electrical outlet.
2
Open the system. See "Opening the System" on page 50.
3
Remove the following components from the system. See "Installing 
System Components" on page 47.
•Hard drives
• USB memory key
• NIC hardware key
• VFlash media
• Expansion card and expansion-card riser
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