DTS Specs from IDF!

Here's the important part!

Desktop TJ For Dual and Quad Core CPUs
45nm Desktop Dual-Core Processors TJ
• Intel® Core™2 Duo processor E8000 and E7000 series 100°C

45 nm Desktop Quad-Core Processors
• Intel® Core™2 Quad processor Q9000 and Q8000 series 100°C
• Intel® Core™2 Extreme processor QX9650 95°C
• Intel® Core™2 Extreme processor QX9770 85°C
 
Carefully read slide 7 ( Sensor Calibration) and think about what it is saying in regards to picking a Tj for your monitoring software.

This is interesting, Nehalem will have a software register were we can read the factory calibrated temp where PROCHOT is asserted (typically called Tj Max)

Software visible register contains the target TJ
–A new feature in the Intel®Core™i7 processor is a software readable field in the IA32_TEMPERATURE_TARGET register that contains the minimum temperature at which PROCHOT# will be asserted. The PROCHOT# activation temperature is calibrated on a part-by-part basis and normal factory variation may result in the actual activation temperature being higher than the value listedin the register. PROCHOT# activation temperatures may change based on processor stepping, frequency or manufacturing efficiencies.

"Note again that this value (like slide 7) is adjusted on a part by part basis for each individual chip and thus any one generic Tjmax value, while being close enough, is still not the actual value to use. But on Nehalem at least we can see what they put in at the factory. (Keeping in mind that all Tjmax means it that the CPU thinks its hot and signals the fans to speed up 100%. It would have been very interesting if they had given values on the true Tj catastropic trip point at which temp the cpu will shutdown.

Franly little new here on existing CPUs other than to throw out some target numbers for the 45nm chips that by their own data/slides are not absolute values anyway due to factory calibration. eh. its something.
 
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