Spurious thermal shutdowns on Dell Studio 1557
Ian Smith
smithi at nimnet.asn.au
Wed Apr 7 08:48:19 UTC 2010
On Tue, 6 Apr 2010, Bartosz Fabianowski wrote:
> > I think some of the frequencies, provided by acpi_throttle and TCC are
> > slowing down your machine without really cooling the CPU.
>
> After a couple of days of testing, I believe this did the trick. I reduced
> the number of frequencies as per Alexandre's tip. I also swapped _PSV and
> _CRT for good measure (_PSV is now 85°C and _CRT 95°C).
>
> I just rebuilt OpenOffice.org, using a parallel build that stresses all
> cores. The machine did not overheat. The highest temperature it reached was
> 84°C for a few minutes. This is still high but not too high.
A result, good.
> I will try hoovering the air vents and keep my eye on things. If they stay
> stable from here, I will not be bothering with Dell support.
Great. I'd still like to know what your remaining frequencies are, as I
couldn't correlate your previous full set with the throttling N * 12.5%?
cheers, Ian
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