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There is a way to settle the issue. Anyone have a mobile dual core cpu (Tjmax documented in intel specs) and an accurate IR gun? IR the back of that cpu, and compare to core temp reading at idle with no heatsink and see if any gradient exists between die temp and IR to cpu. If gradient is near 0, then realtemp is accurate.
The theory that Tcase/cpu temp may in fact be near die temp most of the time is interesting. Intel talks about a die gradient of up to 10C between cores primarily since one core may be inactive and the 2 cores are separated from each other much further than either from IHS, and also transient hot spots. But when both cores are feeding the same temp to tjunction or tcase, especially across ?couple hundred microns of highly conductive material at idle... well they just don't say, but certainly would seem to be low.
So anyone with a mobile duo core cpu (with known Tjmax) and IR gun want to confirm one way or another?
Last edited by rge; 03-02-2008 at 04:15 PM.
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