Dell PowerVault NX300 - Manual (Page 161)

Troubleshooting Your System
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10 Ensure that the cables are firmly connected to the SAS controller and the
SAS backplane board.
11 Close the system. See "Closing the System" on page 83.
12 Reconnect the system to its electrical outlet, and turn on the system and
attached peripherals.
If the problem persists, see "Getting Help" on page 177.
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 Online Diagnostics"
on page 167.
2 If installed, remove the optional front bezel. See "Removing and Replacing
the Optional Front Bezel" on page 81.
3 Turn off the system and attached peripherals, and disconnect the system
from the electrical outlet.
4 Open the system. See "Opening the System" on page 82.
5 Ensure that each expansion card is firmly seated in its connector.
See "Installing an Expansion Card" on page 93.
6 Close the system. See "Closing the System" on page 83.
7 Reconnect the system to the electrical outlet, and turn on the system and
attached peripherals.
8 Turn off the system and attached peripherals, and disconnect the system
from the electrical outlet.
9 Open the system. See "Opening the System" on page 82.
10 Remove all expansion cards installed in the system. See "Removing an
Expansion Card" on page 95.
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