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Old 07-10-2010, 07:35 PM
Moritz Muehlenhoff
Default Bug#529750: linux-image-2.6.26-1-amd64: coretemp reports too-high temperatures on E6600

tags 529750 moreinfo

On Thu, May 21, 2009 at 11:18:46AM +0100, David Buckley wrote:
> Package: linux-image-2.6.26-1-amd64
> Version: 2.6.26-13
> Severity: normal
> Hi; I had an ACPI critical temperature error which caused a reboot
> (probably a different bug to this one), and so started looking at my
> temperatures. Notably, my "coretemp" readings are worryingly high - on
> the stock cooler I currently have:
> CPU Temp: +49.5C (high = +80.0C, hyst = +75.0C) sensor = diode
> Core 0: +78.0C (high = +78.0C, crit = +100.0C)
> Core 1: +78.0C (high = +78.0C, crit = +100.0C)
> (Read while burnP6 is running twice and my big 120mm fan is blasting
> the CPU HSF.)
> The first is from w83627ehf sensor on my ABIT IB9 motherboard (i965).
> Worried about this, I tried the 2.6.25 kernel (same results). That kernel
> is not tainted by fglrx.
> BIOS seems to agree roughly with the CPU temp. Booting Windows and
> running SpeedFan also agrees with this, however Speedfan reports the
> core temperatures to be around 60-62C while running the Windows burnP6
> twice under the same conditions.
> I theorise that coretemp is overestimating by 15-20C for some reason.
> I'm told that those temperatures should never be more than 15 or so
> degrees higher than the BIOS reported one.

The next release of Debian (6.0, code name Squeeze) will be based
on 2.6.32. Please test the current 2.6.32 from unstable/testing and tell
us whether the problem persists. If so, we should report it upstream
to the kernel.org developers.

The 2.6.32 kernel is available from packages.debian.org and can
be installed in both Debian stable, testing and unstable


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