Interesting Heatsink Idea.

[VIAN]

Heat and popular metals.

Copper - absorbs quicker, dissapates slower
Aluminum - absorbs slower, dissapates quicker

Idea:

What if we had a multi-layered base. We start off with a copper base and place on top of it, aluminum round poles of the same height sort of like the Alpha 8045. Those poles connect to another copper plate smaller than the first one because it doesn't need to attract as much heat and then another layer of aluminum poles identically sized like the 2nd copper plate. Then comes the third and final copper plate even smaller than the 2nd. All copper parts are connected by thin aluminum fins that run up the sides of the round heatsink and over the heatsink.

I just seems like an interesting Idea since the first copper plate will attract heat and then the first aluminum will dissapate it and transfer it to the 2nd copper plate, therefore freeing the first copper plate easily to catch more heat and so on and so forth. What do you think?

 

[Rhombuss]

That wouldn't work primarily because of the multiple heat transfer mechanisms you have. Current heatsinks are inefficient as they are, either being CPU --> Al --> Air, CPU --> Cu --> Air, or CPU --> Cu --> Al --> Air. If what you're suggesting is something like CPU --> (Cu --> Al)² --> Air, that would simply add to the heat kept in the system and dissipate even slower. That, and considering your bonding surface between the metals generally has to be perfectly flat (or close to it), the fabrication cost would increase.

 

[Tab]

Copper - absorbs quicker, dissapates slower
Aluminum - absorbs slower, dissapates quicker

Is that really 100% true?

 

[KillaKilla]

Was pondering last night about HS/F setups (yes, I am a nerd) and was wondering:How would this CPU+case HS/F set up fare?

Standard (or slightly taller than normal) copper HS. The top, where the fan normally sits, is sealed. There is a tube going from one side of the HS to <U>a 120mm hole in the side of the case*</U> where a fan is mounted. The fan blows air in, through the tube, then through the CPU HS, and into the case. I like the idea because A: an extra case fan, and B: the CPU is being cooled by cool outside air instead of hot inner-case air.

*(not necesarilly custom, many cases have side vents. Doesn't even need to be 120mm, I just prefer them for their low RPM+high CFM+low noise all at the same time)