Dell POWEREDGE R710 - Manual (Page 168)

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Troubleshooting Your System
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.
5 Turn off the system and attached peripherals, and disconnect the system
from its electrical outlet.
6 Open the system. See "Opening the System."
7 Ensure that the controller card is firmly seated into the expansion-card
connector. See "Installing the Integrated Storage Controller Card."
8 If you have a battery-cached PERC controller, ensure that the RAID
battery is properly connected and, if applicable, the memory module on
the PERC card is properly seated.
9 Verify that the cable connections between the SAS backplane and the
integrated storage controller are correct. See "Installing the Integrated
Storage Controller Card" and Figure 6-3.
10 Ensure that the cables are firmly connected to the storage controller and
the SAS backplane board.
11 Close the system. See "Closing the System."
12 Reconnect the system to its electrical outlet, and turn on the system and
attached peripherals.
If the problem persists, see "Getting Help."
Troubleshooting Expansion Cards
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.
NOTE:
When troubleshooting an expansion card, see the documentation for your
operating system and the expansion card.
1 Run the appropriate online diagnostic test. See "Using Dell™ PowerEdge™
Diagnostics."
2 Turn off the system and attached peripherals, and disconnect the system
from the electrical outlet.