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The [Official] Noctua Club - Page 220

post #2191 of 3060
"convection" type cooling would only work if you have an insanely large surface area, we're talking about a few square meters of surface area.
those passive fin stacks aren't even remotely enough to move air by itself, they're designed with an adequately breezy case in mind.

you know the tubings on the back of old fridges? those are convective cooling coils, they cool a 100W~200W heat-load and look at how huge the surface area is.
post #2192 of 3060
New owner of C14s.




post #2193 of 3060


before cable management and moving of bottom intake.



After 45 minutes of fine tuning cables. I'm planning on replacing the fractal front intakes with some 140mm noctuas. I need something that'll really move air across that front expanse, something strong, yet silent. I've thought of having a specialized bracket mounted in the bottom front 120mm slot that would allow you to swivel a fan, so that it was pulling the air from the top front intake, blowing it directly onto the motherboard. Would that be a bad idea?
I have 3 NF-P12s , 2 NF-F12s, and one NF-A8 currently in my setup. I don't mind the colors, I actually like the contrast they make against the black Fractal Define R5.
With the moving of the P-12 directly under the heavily overclocked 290, it never rises above 70 degrees when gaming.
Edited by Adraps11 - 1/10/16 at 3:40am
    
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post #2194 of 3060
Quote:
Originally Posted by doyll View Post



What I said was.

Define R5 with 2x front and 1x bottom intakes will cool at near silent noise levels. Your noise issues will be CLC and GPU fans and CLC pump.

Adding fans inside of case is more airblow than airflow. Where is this air blowing across mobo going to? It might help one area, but often causes problems elsewhere. Case airflow is just that, flow .. flowing the components' heated exhaust air out of case without it mixing and heating up the cool air flowing to components. wink.gif
"Ways to Better Cooling" link in my sig, 1st post is index, click on topic to see it. Sorry if I've said it before. I see that last sentence in my dreams now. Hope they do not become nightmares. tongue.gif

That's what I was thinking. If one did place a fan inside the case like that it would probably just be blowing warm air over the components and effecting other areas. It was just a thought! thumb.gif
    
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post #2195 of 3060
Quote:
Originally Posted by Adraps11 View Post

That's what I was thinking. If one did place a fan inside the case like that it would probably just be blowing warm air over the components and effecting other areas. It was just a thought! thumb.gif
If you have the fan you could try it and see. Air is a fickled witch who often does things least expected.

Much of your motherboard cooling issue is the result of using CLC on CPU. I rarely (make that only for testing) do I use CLCs. I see no reason to complicate a nice quiet and cooler overclocked system with a less dependable more complicated CLC. Top Tier air is cheaper, does as good or better job, runs quieter and if something fails its a fan .. quick easy and cheap to fix with no down time. If a CLC fails, it's the pump, system is dead until complete new system is installed, not cheap, not quick, no fun no having functioning system.
post #2196 of 3060
Quote:
Originally Posted by doyll View Post



What I said was.
Man... after re-reading what you quoted there I remembered on my own bad habit to read too much into things. I do own you a apology for my bad way to interpret things that otherwise would end in a completely different way. And for all those mistakes I am sorry.



worry not, I still believe in the whole convection thing, but just pretend it is some drunk man grumbling thumb.gif
post #2197 of 3060
Quote:
Originally Posted by vicyo View Post

Man... after re-reading what you quoted there I remembered on my own bad habit to read too much into things. I do own you a apology for my bad way to interpret things that otherwise would end in a completely different way. And for all those mistakes I am sorry.



worry not, I still believe in the whole convection thing, but just pretend it is some drunk man grumbling thumb.gif
By all means, keep grumbling. biggrin.gif
And if you find or develop any empirical data that shows convectin working in a case with fans running please post. I'm not perfect .. I make mistakes too. I've just found that air movement created by even a very slow fan overpowers an air movement convection can create within the temperature range and space of a normal computer case.

I have wondered what would happen if I was duct all computer case exhaust vents to an open fireplace. Would be interesting to see how much airflow the 20 feet of 8" round duct from room up and out of roof would produce. tongue.gif
post #2198 of 3060
Quote:
Originally Posted by doyll View Post

If you have the fan you could try it and see. Air is a fickled witch who often does things least expected.

Much of your motherboard cooling issue is the result of using CLC on CPU. I rarely (make that only for testing) do I use CLCs. I see no reason to complicate a nice quiet and cooler overclocked system with a less dependable more complicated CLC. Top Tier air is cheaper, does as good or better job, runs quieter and if something fails its a fan .. quick easy and cheap to fix with no down time. If a CLC fails, it's the pump, system is dead until complete new system is installed, not cheap, not quick, no fun no having functioning system.

I've already tried tying an 80mm fan blowing directly on the ram, pump head, and general motherboard area and it made no difference, not that I needed it anyway. My case and component temps are actually very good Adding that extra 80mm fan may have actually raised the temps by one degree, because of the hot air being expelled by the GPU rising up. Now I do need my vrm fan, that one makes a huge difference. The only issue I am having is a hot running socket, due to me pushing my motherboard to it's cpu overclocking limit. I have an fx8350 at 4.7ghz running in the mid-range 990fx Killer. I can run 4.8ghz stable, but the socket temp gets to high for comfort during IBT. I already have a socket fan in place, it's just that with the 990fx killer, when you introduce a voltage offset for stabilizing the overclock, things heat up quickly. The board lacks any LLC function, so the closest I can get is a +100mv offset.
Quote:
Originally Posted by doyll View Post

If you have the fan you could try it and see. Air is a fickled witch who often does things least expected.

Edited by Adraps11 - 1/10/16 at 11:39am
    
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post #2199 of 3060
Yes the AMD motherboards in general can not handle the FX cpu and the VRMs tend to overheat. Placing a fan on the VRMs is now standard procedure for any type of water cooling.

With air cooling I do the same thing by moving the center fan as close to the motherboard as possible so it blows some air onto the overheating VRMs.
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post #2200 of 3060
Hello there !
I recently got back to Noctua with a NH-D15S after a short water cooling period (my H220-X leaked mad.gif )
My first experience with Noctua was also my first aftermarket air cooler, the NH-U9B SE2 which is now in my gf's rig.

I also have 2 NF S12B redux fans installed as rear exhaust and bottom intake.

Here's a pic to join the club :

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