Hardware problems 51
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.
Processor problems
Action
:
1.
If applicable, check the processor LEDs to identify if a PPM failure occurred. For LED information, see the
server documentation.
2.
Be sure each processor is supported by the server and is installed properly. For processor requirements,
see the server documentation.
3.
Be sure the server ROM is current.
If an "unsupported processor detected" message appears, see "Unsupported processor stepping with
Intel® processors (on page
85
)."
4.
Be sure you are not mixing processor stepping, core speeds, or cache sizes if this is not supported on
the server. For more information, see the server documentation.
CAUTION:
Removal of some processors and heatsinks require special considerations for
replacement, while other processors and heatsinks are integrated and cannot be reused once
separated. For specific instructions for the server you are troubleshooting, refer to processor
information in the server user guide.
CAUTION:
Before removing or replacing any processors, be sure to follow the guidelines
provided in "Performing processor procedures in the troubleshooting process (on page
17
)."
Failure to follow the recommended guidelines can cause damage to the system board, requiring
replacement of the system board.
5.
If the server has only one processor installed, replace it with a known functional processor. If the
problem is resolved after you restart the server, the original processor failed.
CAUTION:
Before removing or replacing any processors, be sure to follow the guidelines
provided in "Performing processor procedures in the troubleshooting process (on page
17
)."
Failure to follow the recommended guidelines can cause damage to the system board, requiring
replacement of the system board.
6.
If the server has multiple processors installed, test each processor:
a.
Remove all but one processor from the server. Replace each with a processor terminator board or
blank, if applicable to the server.
