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Heatpipes......Do they REALLY work?

post #1 of 37
Thread Starter 
Ok, so i had an ASUS Star Ice heatsink (the ugly blue turbo looking heatsink) and this had the heatpipes and copper 100% in the fins. My question about this is that it was horizontal in my case. Do these heatpipes "evaporate" upside down? What i mean is do they transfer the heat down the pipe, is this possible for heat to travel aginst gravity? I put a new zalman 7700 and its awsome, lowering my temps by about 10 deg F. This cooler doesnt have the heatpipes, just the fins with a solid bottom. I am just wondering if anyone has any thoughts?
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post #2 of 37
Yes heatpipes do work, they are very effecient. And no it cannot defy gravitiy lol. Can you snap a pic of the area so we can get a better understanding?

pink
post #3 of 37
As long as your cpu isn't literally facing the floor, heatpipes should work well. There are heatpipes on two sides so half of them are bound to work.

Was the old hsf seated incorrectly? Too much/too little thermal paste? Things can go wrong mounting heatsinks...
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post #4 of 37
Yes, they do function very well because of the core. That my understanding of it.
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post #5 of 37
Thread Starter 
Ok, this is what i am talking about....see how the heatpipe goes down from the contact point with the cpu. I dont konw if this is an effective heat transfer and looks to be much more inefficnet than the zalman...

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post #6 of 37
... I have an xp 120, mounted sideways, trust me they work, and are effective cause its a liquid under pressure.
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post #7 of 37
Thread Starter 
Quote:
Originally Posted by Blue_Fire
Yes, they do function very well because of the core. That my understanding of it.
Yeah i know that the core is there and thats what i am talking about, and i thought (I could be wrong) that it worked like evaporation of hot "Core" up the heat pipe because hot air (I know its not air but same principle) rises....ne thoughts?

Here is the link that made me question the effectiveness in a horizontal position

http://en.wikipedia.org/wiki/Heat_pipe
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post #8 of 37
Yes but its a liquid, so the liquid gets hot, runs out of the core and raises to the fins(they are colder) then as it gets cold it seeps back into the core and flow toward the cpu again, think of like 7th grade science how they taught about convection in boiling water.
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post #9 of 37
Thread Starter 
Quote:
Originally Posted by Blue_Fire
Yes but its a liquid, so the liquid gets hot, runs out of the core and raises to the fins(they are colder) then as it gets cold it seeps back into the core and flow toward the cpu again, think of like 7th grade science how they taught about convection in boiling water.
hmmmm......7th grade....... Gotcha! I see what your saying thanks for the knowledege! I will sleep better tonight, lol
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post #10 of 37
lol
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