Troubleshooting Expansion Cards; Troubleshooting Processors - Dell XC720xd Owner's Manual

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 diagnostic test. For more information, see Using system diagnostics in this
document.
2. Turn off the system and attached peripherals, and disconnect the system from the electrical outlet.
3. Remove the system cover.
4. Make sure that each expansion card is firmly seated in its connector.
5. Install the system cover.
6. If the issue is not resolved, turn off the system and attached peripherals, and disconnect the system
from the electrical outlet.
7. Remove the system cover.
8. Remove all expansion cards installed in the system.
9. Install the system cover.
10. Run the appropriate diagnostic test. For more information, see Using system diagnostics in this
document.
If the tests are unsuccessful, see Getting help in this document.
11. For each expansion card you removed in task 8, perform the following tasks:
a. Turn off the system and attached peripherals, and disconnect the system from the electrical
outlet.
b. Remove the system cover.
c. Reinstall one of the expansion cards.
d. Install the system cover.
e. Run the appropriate diagnostic test. For more information, see Using system diagnostics in this
document.
If the issue persists, see Getting help in this document.

Troubleshooting processors

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. Run the appropriate diagnostics test. For information about available diagnostic tests, see Using
system diagnostics in this document.
2. Turn off the system and attached peripherals, and disconnect the system from the electrical outlet.
3. Remove the system cover.
4. Make sure that the processor and heat sink are properly installed.
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