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Old 02-02-17, 09:34 PM
GrassyUK GrassyUK is offline
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Question Noctua D15 Fan Swap?

Long story short.
Big cooler, small fractal case, can't get ram small enough. can't raise cooler fan as no sidepanel clearance.

Swap the 140 noctua with a 120 fractal from the front = more ram clearance. Not sure how it will affect performance though.

Opinions?



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Old 02-02-17, 09:38 PM
NeverBackDown NeverBackDown is offline
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Well I think the biggest difference will be noise. Other than that it's really hard to judge thermal performance. It's not like there's any data on it.
Although I suspect it might lose some, Noctua having the best fans and all. Shouldn't be drastic, probably a degree or two at load. Idle most likely won't change
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Old 02-02-17, 09:41 PM
GrassyUK GrassyUK is offline
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Originally Posted by NeverBackDown View Post
Well I think the biggest difference will be noise. Other than that it's really hard to judge thermal performance. It's not like there's any data on it.
Although I suspect it might lose some, Noctua having the best fans and all. Shouldn't be drastic, probably a degree or two at load. Idle most likely won't change
Yeah It feels kinda bad buying this cooler then stripping an amazing fan off it. I could and probably will replace the fractal with a 120mm Noctua.

This is my first time holding a Noctua fan and I can understand now why they cost so much. Pure quality.
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Old 02-02-17, 10:02 PM
NeverBackDown NeverBackDown is offline
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Yeah. A Noctua cooler without a Noctua fan. Seems really odd. Almost like.. frowned upon
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Old 02-02-17, 10:06 PM
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AlienALX AlienALX is offline
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When I fitted mine years ago it went into a MATX case that wasn't very wide. So I could literally only fit the middle fan. It made barely any difference and the reduction in noise was more than worth the sacrifice of a few degrees.
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Old 02-02-17, 10:14 PM
GrassyUK GrassyUK is offline
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Originally Posted by AlienALX View Post
When I fitted mine years ago it went into a MATX case that wasn't very wide. So I could literally only fit the middle fan. It made barely any difference and the reduction in noise was more than worth the sacrifice of a few degrees.
Nice! Reassuring.
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Old 06-02-17, 05:02 PM
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AngryGoldfish AngryGoldfish is offline
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Completely remove the front fan. That's what a NH-D15S is, and it performs only marginally behind the dual fan brother. Second fans on good heatsinks don't usually add very much.
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Old 07-02-17, 11:16 AM
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Originally Posted by AngryGoldfish View Post
Completely remove the front fan. That's what a NH-D15S is, and it performs only marginally behind the dual fan brother. Second fans on good heatsinks don't usually add very much.
Yeah I would do that. It only cost me 3-5'C.



I could not mount it the correct way around but still the temps were fantastic. Great cooler, just very cumbersome and prone to getting in the way. Still, if you're not a fiddler it's still one of the best coolers ever made

Just remembered why I could only mount it that way.. The board I had had a *massive* NB cooler.



As it was designed for AIO. I had to cut the Noctua up !



Yet it still performed amazingly well
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