System open circuits and short circuits, External device problems – HP ProLiant DL120 G5 Server User Manual
Page 63
Troubleshooting 63
processor and its associated PPM (if applicable) one by one, restarting each time, to find the
faulty processor or processors. Be sure the processor configurations at each step are compatible
with the server requirements.
PPM problems
Action: If the PPMs are not integrated on the system board:
CAUTION:
Do not operate the server for long periods with the access panel open or removed.
Operating the server in this manner results in improper airflow and improper cooling that can
lead to thermal damage.
1.
If applicable, check the PPM LEDs to identify if a PPM failure occurred. For information on LEDs, refer
to the server documentation.
2.
Reseat each PPM, and then restart the server.
3.
If reseating the PPMs is not effective, remove all but one PPM, restart the server to see if the PPM is
working, and then install each PPM individually, cycling power each time. Follow the warnings and
cautionary information in the server documentation.
System open circuits and short circuits
Action:
CAUTION:
Do not operate the server for long periods with the access panel open or removed.
Operating the server in this manner 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
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
) 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
Mouse and keyboard problems (on page