On Mon, May 31, 2010 at 22:44, Camaleón <noela...@gmail.com> wrote:

> On Mon, 31 May 2010 02:24:57 -0700, freeman wrote:
>
> > Today my CPU seemingly jumped to 85' C and remained there without one
> > change during three 15 min. sessions.
>
> Did you check that values from BIOS or other sources?
>
> (...)
>
> > I guess I'll never know. How could a dust buildup cause a sudden change
> > in the course of one session?  I didn't see anything that seemed to have
> > been sucked in all at once.
>
> Bad heatsink or old fan?
>
> > The Debian part is, could sensor reporting by ACPI, I8K (for Dell) and
> > libsensors be dead-ended at 85' C?
>
> "lmsensors" reads the values provided by the BIOS but can they be wrong
> unless you load the right modules.
>
> > I am thinking that physically removing and replacing the cooling unit
> > maybe got me a lucky realignment of sensors or something.  85' C would
> > just have been a default on failing.
>
> As you changed "nothing" is quite strange, but I would just replace the
> whole heatsink with a newer one, put a new layer of thermal paste and
> check for any BIOS update.
>
> > But the fan had to be in on the bad information too.  Does it's
> > information come from the kernel.
>
> It comes from BIOS. You better check the BIOS values to reassure.
>
> > BTW, this is a Pentium M, 1.6 GHz., which is suppose to handle heat
> > well.
>
> IIRC, Pentium M saga was not very "wattage hungry", I mean, it had a very
> low TDP (<30W) :-?
>
> Greetings,
>
> --
> Camaleón
>
>
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>
I found a problem like that once with athlon x2, it used to go to more than
100C during some oridinary work.  I opened the case, used a vacuum cleaner
to clean everything thoroghly, and after that the cpu remained at 45C only.

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