[ltp] Temperature problem with my T41p

[Ulrich Kuehn]

On Thu, 2005-12-01 at 15:13 +0800, Fred bobby wrote:
>=20
> I have a big problem with my T41p running debian etch : when the cpu
> burn (dvd rip for example) the temperature increase very quickly until
> shutdown (94=B0 Celsius).
>=20
At what frequency do you operate your CPU? Have you tried clocking it
down to 600 MHz? Same behavior?

> But in fact the REAL temperature is not high, because when I check the
> heat (put my hand beside the fan out) it's not very hot (not as hot as
> I play game under windows for example).
>=20
> But it's very strange because when the cpu idle the temperature is
> correct : between 45 and 50=B0, and in 1 minute increase until at least
> 85=B0 Celsius and go on until shutdown.
>=20
The 45 to 50 deg Celsius seem rather high. I have a T41, and have
between 35 and 39 deg Celsius when idle, and slightly less now that I
undervolt the CPU a little bit.

Have you tried a cpu freq daemon that also checks the temperature, like
cpuspeed? I personally like that one very much.

> I tried to solve this problem but I didn't succeed : recompiling
> kernel without ACPI and using APM : ok for temperature but even with a
> cpufreq governor on performance sometimes the CPU speed is higher
> sometimes lower. I changed the kernel (2.6.14 instead 2.6.12) but it's
> the same problem : temperature increase very quickly until shutdown.
>=20
> My motherboard is brand new : just changed by repair center (not for
> this problem) and it was the same with the old motherboard : shutdown
> when cpu burn.
>=20
I wonder if there is this heat conducting paste between the cpu and the
heat sink. But the repair people should not overlook such a problem,
should they?

Hope this helps a bit,

Ulrich