Re: Wrong temperatures reported for Core2Duo CPU in Intel DG965WH motherboard

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On Fri, 12 Mar 2010 10:40:48 +0100, Luca Tettamanti wrote:
> On Wed, Mar 10, 2010 at 7:10 PM, Jean Delvare <khali@xxxxxxxxxxxx> wrote:
> > On Wed, 10 Mar 2010 08:41:52 -0800, lmsensorslist@xxxxxxxxxxxxxxx wrote:
> >> OK, I just tested this, by running the "stress" command for a few minutes,
> >> until the coretemp values were 91C and 92C.  I then immediately shut down
> >> and went into the BIOS.  Here's the BIOS numbers:
> >>
> >> 68C CPU Die/Package Temperature
> >> 54C Motherboard Temperature
> >> 44C Motherboard Temperature
> >> 82C ICH Temperature
> >> 58C MCH Temperature
> >>
> >> And here's the same BIOS numbers after sitting there in the BIOS for 10
> >> minutes:
> >>
> >> 63C CPU Die/Package Temperature
> >> 50C Motherboard Temperature
> >> 44C Motherboard Temperature
> >> 83C ICH Temperature
> >> 54C MCH Temperature
> >>
> >> I guess the die temp is the one that corresponds to the CPU?
> >
> > Yes, it probably comes from the CPU internal sensors, although only
> > disassembling the BIOS could tell for sure.
> 
> From my experience on Asus boards the "CPU" temperature shown in the
> BIOS is usually read from the external monitoring chip, and only
> rarely from the CPU itself (using PECI - with a totally wrong tjmax -
> sigh).

Yes, but this is an Intel board here, with the QST thing, so I wouldn't
rely on the usual assumptions.

> The ICH temperature is also suspiciously high.

Indeed.

-- 
Jean Delvare

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