cpu temperature

Lennart Sorensen lsorense-1wCw9BSqJbv44Nm34jS7GywD8/FfD2ys at public.gmane.org
Tue Sep 8 14:25:55 UTC 2009

On Sun, Sep 06, 2009 at 10:22:32PM -0400, Madison Kelly wrote:
> Adding to and expanding on Hugh's advice;
> Dust can block the exhaust fan or the CPU fan could have failed. Every  
> Thinkpad has a service and parts manual available on the download page  
> that has detailed tear-down instructions. This will help you  
> tremendously when it comes to clearing the fan and/or replacing it.
> If you have support in the hardware, install 'acpi' and then run 'acpi  
> -t'. That will show you the temperature on the CPU (and other thermal  
> sensors). From there, it should be a pretty easy task to hack up a  
> script to parse it's output periodically and record the temperature to a  
> file/DB.
> Let us know exactly what make/model you have for more help.

Yeah I try to clean the dust from the heatsink/heatpipe every 3 months
or so.  It tends to make the machine run way quieter, and makes the fan
happier, and the system cooler.  One time I did my wife's laptop and it
dropped the temperature of the CPU by 15C and the fan stopped running
at full blast.

I find that a Q-tip works well after removing the cpu fan.  Making the
tip damp makes it collect the dust better (but not soaking wet).

Len Sorensen
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