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List:       linux-poweredge
Subject:    Re: Temperature monitoring with OpenIPMI on Poweredge x9xx
From:       Peter Kjellstrom <cap () nsc ! liu ! se>
Date:       2007-05-28 19:06:01
Message-ID: 200705282106.05643.cap () nsc ! liu ! se
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On Monday 28 May 2007, Olivier BONHOMME wrote:
> Hello,
>
> I am writing on this list because I have a problem about monitoring CPU
> temperature On PowerEdge x9xx based on Core 2 Duo architecture.
>
> I am using OpenIPMI 2.0.6-1 version downloaded from official Fedora Core
> 6 repository.
>
> When I want to check the CPU Temperature, ipmitool returns to me
> negative temperatures as follows :
>
> Sensor ID              : Temp (0x1)
>  Entity ID             : 3.1 (Processor)
>  Sensor Type (Analog)  : Temperature
>  Sensor Reading        : -53 (+/- 1) degrees C
...
> Does anybody know if there is somewhere a way (patch, OpenIPMI
> customized by dell) in order to get the correct value for the CPU
> temperature ?

This happens to be the "correct" value. With woodcrest and clovertown intel 
decided (in it's infinite wisdom) that absolute temperatures were boring. So, 
now we have these very nice relative ones... -53 is to be read as "53 degrees 
below melting point for this specific cpu".

Cheers,
 Peter

> Thank you four your answers
>
> Best Regards,
> Olivier BONHOMME

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