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Linux - CPU Temperature above threshold

unix adm
Regular Advisor

Linux - CPU Temperature above threshold

Hi ,

I have ProLiant DL380 G4 server running with Linux on it

Getting following error in syslog.

Mar 15 16:30:51 BSICMDBDR kernel: CPU3: Temperature above threshold
Mar 15 16:30:51 BSICMDBDR kernel: CPU2: Temperature above threshold
Mar 15 16:30:51 BSICMDBDR kernel: CPU2: Running in modulated clock mode
Mar 15 16:30:51 BSICMDBDR kernel: CPU3: Running in modulated clock mode

Any idea what to do about this pleas?

Thanks and Regards
Rajeev
2 REPLIES
Matti_Kurkela
Honored Contributor

Re: Linux - CPU Temperature above threshold

CPU2 and CPU3 are not receiving enough cooling. The CPUs are slowing themselves down to prevent overheating damage.

Things to check:

- Is the server room too hot? (See the server's manual for specifications.) Increase cooling if necessary.

- Is the airflow into or out of the server blocked by dust, dirt or unorganized cables? Clean & reorganize if necessary.


- Is there dust build-up in the CPU heat sinks? (This might happen if the server is in a very dusty environment.)

MK
MK
Jeroen Peereboom
Honored Contributor

Re: Linux - CPU Temperature above threshold

Fan failure is another option?