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Troubleshooting
159
System Open Circuits and Short Circuits
Action:
CAUTION: Do not operate the server for long periods without
the access panel. Operating the server without the access panel results
in improper airflow and improper cooling that can lead to thermal
damage.
1. Check the server LEDs to see if any statuses indicate the source of the
problem. For LED information, refer to the server documentation.
2. Remove all power sources to the server.
3. Be sure no loose connections (on page
141
) exist in the area.
4. Be sure each component in the area is working. Refer to the section for each
component in this guide.
If you cannot determine the problem by checking the specific area, perform each
of the following actions. Restart the server after each action to see if the problem
has been corrected.
·
·
Reseat all I/O expansion boards.
Be sure no loose connections (on page
141
) exist in the rest of the server,
particularly with the cables that connect to the system board.
·
Be sure no foreign material exists, such as screws, bits, or slot bracket
blanks, that may be short circuiting components.
External Device Problems
List of Problems:
Video Problems ..........................................................................................................................
160
Audio Problems ..........................................................................................................................
161
Printer Problems .........................................................................................................................
162
Mouse and Keyboard Problems..................................................................................................
162
Diagnostic Adapter Problems .....................................................................................................
163
Modem Problems........................................................................................................................
163
Network Controller Problems.....................................................................................................
167