On 10/27/2011 8:48 PM, Soren Kristensen wrote:
> Hmm, those numbers should not be possible. According to the Intel docs, 
> the commercial Atom E6xx parts we use have a Tjmax of 90°C, with an 
> onchip precision digital thermal sensor that will shut down the chip if 
> the Tjmax is exceeded.
> 
> The die temperature is readable using RDMSR reg 019C bits 16..22, as an 
> offset from Tjmax, can be done in the comBIOS monitor by:
> 
>  > rm 19c
> 
> If it t.ex. shows 00000000 88240000 then the offset is the 24 (hex), 
> which gives 90 - 36 = 54°C

After sending that I remembered there was a thread on the pfSense forum
where people found a similar calculation explanation, here:

http://forum.pfsense.org/index.php/topic,42313.msg219174.html#msg219174

Which in turn pointed out this:
www.lm-sensors.org/wiki/FAQ/Chapter3#coretempreturnsunrealisticvalues

It very well may be that things reading the temp are just getting it wrong.

Jim
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