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Originally Posted by AngryAlpaca
The IHS temperature is NOT important to overclocking, which is what Cathar is saying.
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But it is usable as a method for establishing heat exchanger performance.
However, as with any method the relationship to normal reality needs to be understood.
I'm trying to model this kind of behaviour.
There are differences between blocks on the TTV (and all test testups) that don't exist in reality. This is true with or without the IHS
Some modelling which I'm too fatigued to explain at this point.
Not visible in the gradient chart but there is a 0.02° difference between the two blocks in the two different scenarios at the die core, meaning that the test setup is itself dependent on the block it is testing.
This is exacerbated by TIM variations etc. which I have not modelled at this point. (too complex in a hurry) and even more significant with thin vs thick bases, concentrated cooling regions bla bla
Any test method is inherently flawed unless we understand it.
I am almost typing in my sleep here, forgive the incoherence.