PSU Fan Spinning more in H440?

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Keir Nellyer

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Apr 3, 2014
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I have the Corsair GS800, its one of those power supplies where the fan only spins when it needs to. I recently moved my build into a new case, the NZXT H440. When the power supply was in my old case, the Zalman Z11 the fan on the PSU barely ever spun. However since putting it in the H440 it spins a lot more.

In the old case it was facing up towards the motherboard which I believe is the wrong way to do it and it should've in fact been facing down. When moving into the H440 I was forced to face the PSU down due to the cover that goes over the PSU. Since then the fan on the PSU spins a lot more than before. Before I'd usually only hear it spin whilst gaming.

Is there something I'm doing wrong? Anything I can do to make it spin less?
 
Solution
C12Friedman
Corsair's higher end models include Corsair Link which can control the PSU's fan profile but you've got no such option - outside of replacing the PSU (I know of an excellent deal if you're in the US BTW) or cutting into your PSU's case to create vents (highly NOT recommended - can be life threatening and will void your warranty), I think you're sort of stuck. The somewhat funny thing (in my mind) is: had you mounted the PSU fan down in the Zalman case, you wouldn't notice any difference now - it was only because of the fan up orientation that it ran cooler

I believe the marketing term for that type of PSU is "Semi-passive"
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C12Friedman

C12Friedman

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Jan 25, 2012
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The GS800 model has somewhat restricted airflow - it wasn't an issue in the Zalman case since with the fan in the up position, airflow from the case was being expelled through the PSU helping to cool it. Because the part of the PSU where the cables come out is not at all vented, you have no ambient airflow to assist in cooling - it's the PSU fan or nothing. It isn't a bad thing since the PSU will keep itself cooled properly but it may be annoying until you get used to it.
As far as making the GS800's fan spin less in the H440 case, I'm not sure that's possible without modding but I'll check out some reviews, see what I can find
 
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Keir Nellyer

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Okay, thanks for the detailed answer. Is there maybe a way to make the GS800 act like a normal PSU whereby the fan would spin but at a speed that's in-audible?

Is there a technical term for these types of PSUs?
 
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C12Friedman

C12Friedman

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Jan 25, 2012
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Corsair's higher end models include Corsair Link which can control the PSU's fan profile but you've got no such option - outside of replacing the PSU (I know of an excellent deal if you're in the US BTW) or cutting into your PSU's case to create vents (highly NOT recommended - can be life threatening and will void your warranty), I think you're sort of stuck. The somewhat funny thing (in my mind) is: had you mounted the PSU fan down in the Zalman case, you wouldn't notice any difference now - it was only because of the fan up orientation that it ran cooler

I believe the marketing term for that type of PSU is "Semi-passive"
 
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Solution
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Keir Nellyer

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Apr 3, 2014
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Okay, thanks a lot! On my 3rd PSU already so not sure if I'll change it. Out of interest what is the deal you were talking about? I don't live in the US but I'm just curious.
 
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Keir Nellyer

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Ah nice. Think I'll get a modular one next. The only part still existing from my original build is the SSD.
 
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C12Friedman

C12Friedman

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I was watching a Bill Owens video the other day (he's a pro modder) and he was working on an H440. During the video they commented about putting the PSU in either position. It occurs to me that there may be enough room above the PSU to get airflow from the front fans (the bottom fan does enter into the PSU area) - You may be able to simply pull it out in it's mount and flip it (depending on your cable management in there) see if it doesn't calm down some with the fan up. Worse case scenario, it runs the fan more, if so, simply flip it back
 
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Keir Nellyer

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Apr 3, 2014
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Thanks, I'll give that a shot

Edit; Actually I just realised that I haven't heard the PSU fan spinning much, I might've just gotten used to it but I'll keep an ear out for it over the next few hours.
 
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