Dell DX6000 - Manual (Page 170)

170 Troubleshooting Your System
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" on page 113 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" 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 189.
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 173.
2 Turn off the system and attached peripherals, and disconnect the system
from the electrical outlet.
3 Open the system. See "Opening the System" on page 83.
4 Verify that the installed expansion cards are compliant with the expansion-
card installation guidelines. See "Expansion Card Installation Guidelines"
on page 120.
5 Reseat any expansion card that is not firmly seated in its connector. See
"Installing an Expansion Card" on page 121.
6 Close the system. See "Closing the System" on page 83.