Real Temp - New temp program for Intel Core processors

[unclewebb]

Degenerate83: CoreTemp assumes a TjMax=105C for the E8x00 desktop processors which is based on what the mobile 45nm processors are rated at.

My testing of an E8400 with an IR gun showed that TjMax=95C for these processors.

Reported Temp = TjMax - DTS

DTS is the data coming directly from the on chip digital thermal sensors. Both programs read that data the same. Because both programs are assuming different TjMax values, the reported temps will be different by exactly 10C. Obviously I believe that RealTemp, which is based on measured data, is more accurate.

Chrysalis: The theory that the original B2 series has perfect accurate temps across the entire operating range is simply not true. I have an E6400 - B2 with the Conroe core. All programs agree that TjMax for the E6x00 series is 85C and my IR thermometer agrees but that results in temperatures at idle that are below ambient. Post#1 outlines this. The data output from the DTS sensors does not move linearly with changes in core temperature. RealTemp is the only program that recognizes this fact and tries to provide a way for users to calibrate their processor for more accurate idle and full load temperatures.

Other programs like CoreTemp are changing the TjMax value, usually higher, to try to cover up below ambient temperatures being reported. If you change the assumed TjMax, you will screw up the reported load temperatures.

rge: Thanks for your data. After measuring a M0 processor I was starting to wonder if the G0 series was TjMax=95C or not but your data confirms that it likely is. Hopefully another user can do some testing or else I'll have to go buy an E6750 or similar.