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Originally posted by bigben2k
Well, that's the problem isn't it? If there's the possibility of contradiction, then it's in error?
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You have to consider the article in context of what me/we are trying to prove or disprove, which is the argument that "Aluminum sheds heat faster than Copper". So in this context, yes the author is in error when makes a claim to the contrary IMO.
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Read it again: it's correct. I believe that you're confusing the material density, with the thermal resistance.
The machinability of Aluminium is not in question.
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I am not questioning the machinability of Aluminum, but the author of the article most certainly is, more specifically by omitting such an important fact, in order to advance his conclusions.
What is important is that in general you will not able to find one single shred of experimental data supporting any of the arguments exposed by the author at amdmb.com's article. Please consider that I am not denying the (very valid) use of copper plate on a very concentrated heat source, such as is the case of an Athlon CPU core, but as pointed out in the article I linked in the prior message, you should leave open the possibility that same or higher efficiency can be achieved by optimizing for Aluminum. There is no shame in admitting these simple facts.