Dell PowerEdge R715 - Manual (Page 152)

152 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 62.
6 Ensure that the NICs, hubs, and switches on the network are all set to the
same data transmission speed and duplex mode. 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 183.
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 78.
3 Disassemble components from the system. See "Installing System
Components" on page 75.
• Hard drives
• Cooling shroud
• Cooling fan assembly
• SD cards
• USB memory key
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