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Are All Heat Pipes Created Equal?

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post #1 of 16 (permalink) Old 11-19-2019, 12:44 PM - Thread Starter
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Are All Heat Pipes Created Equal?

For heat pipes in different cooler units, are they likely to have fairly similar performance if they appear to be similar size and configuration? Are there "good" heat pipes and "not as good" heat pipes?

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post #2 of 16 (permalink) Old 11-19-2019, 01:19 PM
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No.

But for PC cooling the differences aren't that big and more heatpipes with good contact is better.
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post #3 of 16 (permalink) Old 11-19-2019, 01:56 PM
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Theres vastly different quality of heat pipes.
Firstly comes down to the meterial they use for the pipe. Then the vacume and working liquid inside the pipe. And lastly the wicking design.

Some of the cheaper coolers the heat pipes can purely be for show instead of function, Youll cut one open and its just a hollow pipe with ends crimped.
Where youll open your normal heat pipe up and its got a wick inside it and some fluid.


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post #4 of 16 (permalink) Old 11-19-2019, 02:52 PM - Thread Starter
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Quote: Originally Posted by bmgjet View Post
Some of the cheaper coolers the heat pipes can purely be for show instead of function, Youll cut one open and its just a hollow pipe with ends crimped.
Where youll open your normal heat pipe up and its got a wick inside it and some fluid.

Sounds like there are some potential differences. Would you suspect such differences with companies that focus on cooling products and make/market a lot of coolers, and also for instance between their lowest budget, mid-range and high end models?



I'm also wondering if the quality of soldering between the heat pipes and the cooling fins is likely to differ a lot.



When I'm "cooler shopping" I can look at the layout and components of a cooler, which often look very similar. Fans can be replaced, from my giant stockpile of Noctua fans, so I'm not too concerned about that aspect. Just the basic size, construction and thermal conductivity.

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post #5 of 16 (permalink) Old 11-19-2019, 02:58 PM
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Go with something with a good review. If you get the genuine product then it will perform as the review did.
If you get a cooler from the likes of ebay that looks exactly the same design but isnt that brand then youll get a dud with fake heat pipes like I did.


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post #6 of 16 (permalink) Old 11-19-2019, 02:58 PM
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why is it that there was no fluid or wick inside my GTX480 vapor chamber and tubes?

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post #7 of 16 (permalink) Old 11-19-2019, 03:02 PM
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Quote: Originally Posted by skupples View Post
why is it that there was no fluid or wick inside my GTX480 vapor chamber and tubes?
Because thats a vapor chamber lmao.


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post #8 of 16 (permalink) Old 11-19-2019, 03:03 PM
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just making sure

never knew if the vapor like, condensed, then re-vaporized based on temp, etc.

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post #9 of 16 (permalink) Old 11-19-2019, 03:41 PM - Thread Starter
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Quote: Originally Posted by bmgjet View Post
Go with something with a good review.

Problem is a lot of coolers are a tight fit between case, memory sticks, VRM heat sinks, etc. Sometimes the stuff with the good reviews don't fit, and since the range of coolers is so huge they don't all get reviewed side-by-side. I'm more going by brand name, but even that isn't foolproof.

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post #10 of 16 (permalink) Old 11-19-2019, 03:49 PM - Thread Starter
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Quote: Originally Posted by skupples View Post
just making sure

never knew if the vapor like, condensed, then re-vaporized based on temp, etc.

I used to test detector systems with cryocoolers that did about 0.25 Kelvin by evaporating condensed helium-3. THAT was a fun job.

one of my old babies: http://www.chasecryogenics.com/Files...FULL/IMG04.jpg






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