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Corsair H80 cooling concerns

  • S.A.F Dman
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5 years 10 months ago - 5 years 10 months ago #15997 by S.A.F Dman
S.A.F Dman created the topic: Corsair H80 cooling concerns
Ive noticed since summers starting to hit my case temps have been starting to rise and I believe this problem to be solely the H80's fault. My cpu and gpu temps seem to be running really cool temps but the case tempe have risen because of the way Corsair have instructed me to setup the H80 as inlet fans. Now although this helps keep cool fresh air pumping through the radiator doing a decent job cooling the cpu in doing so keeps forcing hot air into my case with now only 2 x 120mm top exhaust fans to pump it out again. Now I could switch the fans around using them as an exhaust, only issue is Corsair dont recommend this as this pumps your hot case temp air through the radiator causing slightly hotter cpu temps. Normaly this hasnt been an issue but since summer is heating up here Ive noticed my case temps to be abnormally high. Last night when I checked my top exhaust fans were hot along with my sticks of ram. Not sure what i could do.

I currently have 1 x 140mm inlet fan at 2000rpm, 3 x 120mm inlet fans at 2000rpm and 2 x 120mm exhaust fans situated at the top. Ive also been told that I should aim for positive CFM air pressure hence the reason for more intake fans then exhaust. I was thinking about getting the Coolermaster 4 in 3 device module 120mm inlet fan that sits in 4 of my drive bays since it will directly force cold air over my dimms. Or maybe I could just swap my 2 x 120mm top exhaust fans for 2 x 140 mm ones. Thoughts??

Last Edit: 5 years 10 months ago by S.A.F Dman.

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  • S.A.F Survival
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5 years 10 months ago #15998 by S.A.F Survival
S.A.F Survival replied the topic: Re: Corsair H80 cooling concerns
Take side panel off and aim a fan into it

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  • S.A.F majorpous
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5 years 10 months ago #15999 by S.A.F majorpous
S.A.F majorpous replied the topic: Re: Corsair H80 cooling concerns
That must be one noisy computer mate!. Thats a lot of fans, spinning fairly fast too.

Have as many fans pressurizing the case - the denser the air, the more latent heat capacity it has. Ie - it will carry more heat out.

Fluid dynamics are at play here ( air is a gas, gas and fluids have very similar properties other than density and viscosity ). Remember also that heat rises. Dont be trying to force hot air out down low.

Personally, I would be pushing air in at 2,3,4 and 5, and probably removing the top fans altogether and see what that does. Is the computer sitting on a hard surface or carpet? If its on carpet the bottom fans will be doing SFA. Even elevating the case 50mm to allow more free movement of air into the 2 bottom fans may be a considerable assistance. To put things in to perspective, think of how much heat is being generated in that case.

650w maybe? ( 580, I7 920, etc )

you have to remove 650w of heat to maintain case temp. The case itself has a large bearing on the amount it removes, an alloy or steel case will dump a lot more heat than a plastic case. But, for every 1 watt that the case is not dumping itself ( and at ambient temps, its not doing anything ), you have to pump through 850L/s of air to totally maintain the case temp at ambient tempratures. Thats approx 28cf. Trying to maintain ambient temps in the case is not practical, and Aarons suggestion is actually the easiest ( and often quietest ) way to keep a case cool, but look out dust.

FYI my case temp in a 20 degree room is about 26 degrees, one 6970 vents fully out the back ( ref design ) and the other semi expels the heat, the rest is collected pretty quickly by a 120mm fan and expelled. The CPU has a bit artic cooling cooler on it which has air drawn across it by a 120mm fan. Of course the PSU also sucks air out via a 120mm fan again. Hard drives are spun down most of the time. When I am not gaming its near silent. Gaming, the GPU's ( specially the ref design ) get quite loud if I manually set the fan speeds, but I dislike to see them over 60 devrees. Let them get to 80 and the fans are moderate volume, but it all gets too hot around the cards for my liking.



Want geekiness?
specific heat capacity of dry air is 1.006 kJ/kgC
Density of air at 30C is 1.165 kg/m³

sticking with SI units, you can convert.
1 m³ weighs 1.165 kg
to heat that by 1 degree C:
E = 1.006 kJ/kgC x 1.165kg x 1C = 1.17 kJ

1 m³ = 35.3 ft³
1 C = 5/9 F
1 kJ = 1kW-second

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  • S.A.F Dman
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5 years 10 months ago #16000 by S.A.F Dman
S.A.F Dman replied the topic: Re: Corsair H80 cooling concerns
Holy crap. I need to be a mathematician to understand u Major lol.

Thanks for the input guys.

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5 years 10 months ago #16001 by S.A.F Masterpetey
S.A.F Masterpetey replied the topic: Re: Corsair H80 cooling concerns
buy a bar fridge and drill holes into it to attach your fans and proceed to migrate your pc innards into the bar fridge for ze summer...

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5 years 10 months ago - 5 years 10 months ago #16002 by S.A.F Phantom
S.A.F Phantom replied the topic: Re: Corsair H80 cooling concerns
I have read multiple forum threads of people just turning the fans around to make them vent outwards and it only increases cpu temps by 2-8c ..... such an easy thing to try atleast.
Last Edit: 5 years 10 months ago by S.A.F Phantom.

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5 years 10 months ago #16006 by S.A.F M3RRiK
S.A.F M3RRiK replied the topic: Re: Corsair H80 cooling concerns
DMAN give Phantom's suggestion a go after noting your current temps... be interesting to see what happens to your CPU and case temps.

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5 years 10 months ago #16015 by S.A.F Dman
S.A.F Dman replied the topic: Re: Corsair H80 cooling concerns
When I get some time Ill switch the fans around to exhaust. I always thought having them as inlet was a silly idea even though I get an average load temp of mid 60•C I dont think the idea of pumping hot air into a case as a smart idea because once the case temp rises eventually itl start to effect temps for everything else.

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5 years 10 months ago #16016 by S.A.F Kastaboy
S.A.F Kastaboy replied the topic: Re: Corsair H80 cooling concerns
i just installed my antec 920 with fans pumping air out i have a 120mm side fan and i had to take out the 200mm top fan jsut to fit the antec 920 in cos it was so big!!

cpu temps are low 30 at idle and under load max 62-63

i'kk take a pic of my case soon its the CM HAF912 advanced

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5 years 10 months ago - 5 years 10 months ago #16017 by S.A.F Dman
S.A.F Dman replied the topic: Re: Corsair H80 cooling concerns
Just doing some more reading up on case cooling layouts.

I read up somewhere that you want to create a pathway for your air to pump in then back out again and try not to have your inlet fans facing eachother otherwise it'l create turbulance causing heat issues which is where I think I may be going wrong since my front fans and rear fans are both inlets and the top is exhaust. I think I may have to go against Corsairs suggestions and have the H80 fans as exhaust as Phantom suggested because there seriously heating up my case and dimms which will make them hard to overclock.

Last Edit: 5 years 10 months ago by S.A.F Dman.

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  • S.A.F Survival
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5 years 10 months ago - 5 years 10 months ago #16034 by S.A.F Survival
S.A.F Survival replied the topic: Re: Corsair H80 cooling concerns
I have always run
Front inlet
Back outlet
Side inlet
Top/ bottom no fans
Using my cooler master V8 on low speed, couldnt tell you what my temps are don't monitor it

What temp program are you using ?
Last Edit: 5 years 10 months ago by S.A.F Survival.

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5 years 10 months ago #16036 by S.A.F Dman
S.A.F Dman replied the topic: Re: Corsair H80 cooling concerns
CpuId I think its called along with the rest. CpuZ and GpuZ. Same as what Mayhem uses.

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5 years 10 months ago #16039 by S.A.F Phantom
S.A.F Phantom replied the topic: Re: Corsair H80 cooling concerns

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5 years 10 months ago #16043 by S.A.F Survival
S.A.F Survival replied the topic: Re: Corsair H80 cooling concerns
thanks Phantom

installed it and did a quick snap shot,
doesnt look like it is showing one of the fans, I have a front and a rear 120mm fan, dont know which one it is reading
I turned my CPU fan up to 1400MAX goes as slow as 910


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