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Originally Posted by Varsis
N how do you suppose one should measure acurate core temps?
a prob under neeth wont do it, drilling a hole in the waterblock and putting one right over the core would kill cooling efficiency.
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With an external probe, there's no such thing as "accurate". You can achieve good consistency though with an external probe, just so long as you don't expect it to be accurate.
By that I mean that it is possible to setup an external thermal probe in such a way that it is able to reliably detect relative differences (with respect to itself) between different cooling scenarios.
Sticking a thermal probe "out there" on the edge where it is subject to both variations in air-flow and thermal contact with the CPU.
An under-the-socket probe is much maligned, but perhaps about the only way to get repeatable external results, so long as adequate measures are taken, such as sticking insulation around it in the socket, around the socket, and behind the motherboard, ensuring it directly touches directly behind the CPU with thermal paste.
That won't give you an accurate measurement, but it will give you a fairly repeatable one, which is the best one can hope for.
Probes hanging out "in the wind" in even very minor ways can be compromised very easily by any form of air-flow.