Core temp vs CPU temp

[lousydood]

I have an E6600 and pumped the FSB to 1333 to run the CPU at 3GHz. RightMark and Speedfan both report load temps of low-40s for the cores. However, Speedfan also has a "CPU temp" which is in the 50s. Which should I believe?

 

[Arcanedeath]

Both, one is the actualy on the die temp of the "core" of the cpu and the other is just another sensor on the chips package. so both are typicaly accurate. Theirs a large thread over at XS forums about this, the best method is to just use core temp version .95 and go based on that usualy it reads higher.

 

[Capitalizt]

Originally posted by: Arcanedeath
Both, one is the actualy on the die temp of the "core" of the cpu and the other is just another sensor on the chips package. so both are typicaly accurate. Theirs a large thread over at XS forums about this, the best method is to just use core temp version .95 and go based on that usualy it reads higher.

Could you explain this a bit more for us noobs?

I was just about to ask this EXACT SAME QUESTION! I also have an E6600 and OCd it to 2.995ghz, and am getting the same results...39 degrees for the cores but 55 degrees for the CPU reading. I have a huge Zalman fan blowing constantly, and am really worried if 55 is the idle temperature..

I tried searching the XS forums but had no luck finding the thread about this subject..

Any help would be greatly appreciated.

 

[NoobyDoo]

You might want to have a look at this :

TAT vs. speedfan inconsistencies between cores

As uncle explained above and is documented in the document there is no Tjunction in these processors. You are getting tripped up by loose usage of terminology by enthusiasts. Intel engineers talk a different language.
...
For purposes of this discussion only, TCC = TJunction = The temp the computer will thermally trip (shutdown to protect itself) at, either 85 or 100C (and actually can be set to anything per individual processor at the factory so I am not sure those two numbers are written in stone. )
With understanding of the above the formula then becomes
Core temp = TCC - DTS
...
Note: it is unfortunate the author of core temp (a superb effort and great program, I hate to be anything negative with it) choose the label Tjunction as a reference to the maxium core temp referred to in the above as TCC. I dont know if the terminology has changed or what, but it is clear from the document that Intel is moving to the placement of DTS (digital temp sensors) into the cores instead of the thermal junction diode temp readings and it is causing confusion.
...
Conclusion: Speedfan can log temps as precisely as RMClock can and the offset is indeed -15 °C. Also, don't use TAT for a C2D or Quad C2D!

 

[Capitalizt]

That answer confuses me, lol

So what is the important temp to look at? CPU temp or Core temp?