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Huh? Copper or Aluminum?

post #1 of 42
Thread Starter 
I have a totally newb question for you guys. Can someone tell the me the difference in cooling abillities between heatsinks made of copeer and aluminum? Or Both? Gotta buy a new one soon and I'm having trouble picking.
    
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post #2 of 42
Well i think the copper is better at conducting heat and the aluminum is better at disipitating (sp?) the heat so most of the top end coolers you see have a copper base and heatpipes and aluminum fins.
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post #3 of 42
incorrect, copper is superior all around but is much more expensive to use hence why they try to use copper in the most important parts and then aluminium for other areas to save money.

However there is some improvement to be had with staying with the same metal, going from copper to aluminium diminishes heat transfer even though copper is a better thermal material, if the CPU heatsink was aluminium you can see how this would be an advantage.
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post #4 of 42
Well thats why i said i think...oh and all copper coolers are heavier aswell.
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post #5 of 42
Copper is better at conducting and dissipating heat. Its more expensive and heavier, so most companies (in an attempt to save money/weight) will use copper for the base and heatpipes as they recieve the highest amounts of heat, and the fins are commonly made of aluminum as tey are ligheter weight and cheaper.
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post #6 of 42
Aluminum corrodes and gets crappy heat transfer.
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post #7 of 42
copper owns aluminum

take it from an lumminum heatsink guy..........

ALluminum works well on things that don't need EXTREME cooling although
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post #8 of 42
Thread Starter 
Thanks GGuys...I'm Going All Copper Then!!
    
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post #9 of 42
I've been told that copper is better at conducting and aluminum is better at dissipating as well.
    
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post #10 of 42
coppers specific heat is lower.

it gets hotter quicker, and cooler faster.
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