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Can a PSU be nearly silenced?

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Hey everyone. I have a geothermal loop on my PC and I took out almost all the fans (8 in total) from my PC. It is nearly silent. I have one 240mm on low blowing across my 4 8tb HDDS. My power supply is the main noise left. It is a Corsair AX1200. I replaced the fan in it with a Noctua NF-P14s and it's better but still there. My PC draws 600+/- watts under full load. I cut out the mesh at the bottom of my case but that made no difference. Does anyone have a suggestion or 2 for me to try? Thanks
 
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I have a P14S Redux and it is definitely on the louder side. Try a Be Quiet Silent Wings 3 140mm PWM fan, even at full speed of 1000rpm they're very quiet. I'm sure someone will say "but they're not as good for pressure situations", well unfortunately you can't win all the time (and it'll be plenty for a PSU anyway).
 

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I have a P14S Redux and it is definitely on the louder side. Try a Be Quiet Silent Wings 3 140mm PWM fan, even at full speed of 1000rpm they're very quiet. I'm sure someone will say "but they're not as good for pressure situations", well unfortunately you can't win all the time (and it'll be plenty for a PSU anyway).
^ This.

Noctuas are fantastic for performance (especially pressure), but there are definitely quieter fans out there - and a PSU doesn't need pressure.
 
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Thanks guys. I didn't realize there were quieter fans. I've always thought Noctua was the gold standard
 
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Thanks guys. I didn't realize there were quieter fans. I've always thought Noctua was the gold standard

I have had good experiences with Noctua, but mainly in the smaller (92mm and down) sizes. Can't comment on the NF-A12x25's because I haven't tried them. Especially in the 140mm size I have found Noctua fans to be not be all that good.
 

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Thanks guys. I didn't realize there were quieter fans. I've always thought Noctua was the gold standard

Not for noise.
 
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Thanks guys. I didn't realize there were quieter fans. I've always thought Noctua was the gold standard
My gold standard is Be Quiet.
 
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Yep. For low noise Silent Wings are fantastic option. One of the few fans with bearings quiet enough that I can't hear them at low rpms
Other ones I can vouch for would be Enermax TB Silence.
 

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Doesn't that AX1200 have a fan off mode? I know that the more advanced AX1200i does.
 
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Doesn't that AX1200 have a fan off mode? I know that the more advanced AX1200i does.
Good point, my new RM1000x has zero fan mode until a certain wattage starts being consumed. But with the top of the range AX models, it most certainly should have that feature!
 
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Corsair RM line usually have fan off mode that turn off the fan at <50% load, Idk about AX line
 
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No fan off mode that I know of. So what if I hook the fan to the motherboard and set it to be controlled by VRM temp maybe? Can't use CPU cause it never breaks 67 and my GPU never exceeds 45c. I am probably not thinking on it right but maybe finding a way to use the MOBO for speed might be effective
 
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i can not remember hearing my PSU once. (BeQuiet Straight Power 11 Platinum and Dark Power Pro 12) even with having only Noctua NF-A12x25 at low RPM that they are below the noise floor and inaudible.
are noise PSUs really a thing? i had one Corsair RM750x in a cheaper build that had massive coil whine but that's it.
 
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I'm being a bit silly about it I guess. It's just that its the only audible part of my system. I went from a near roar to a light whush when I took out all my case fans, radiator fans and VGA cooler. I just kinda figured I would make it as silent as it could be.
 
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Controversial opinion, but you should have bought Silverstone Nightjar or some other passive PSU. They are 0dB.
 
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I would be very cautious about replacing a power supply fan with something different as the cooling may be adversely affected; I believe this was discussed on the now defunct Jonney Guru site

A small presence remains on facebook
JonnyGURU.com | Facebook
 
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I like fan-less power supplies; but in reality, they depend on the case flow.
 
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What about moving the fan to the next room and channel the air to your pc through pipes
 
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Controversial opinion, but you should have bought Silverstone Nightjar or some other passive PSU. They are 0dB.
Either this, or a semi-passive one like @Braegnok mentioned. I think those are the best, as they don't depend on case airflow as much as fanless ones. They're passive when it matters (in idle), but they do a light fan spin when needed. I've had two Seasonic Prime units so far - both of them were inaudible even when the fan was spinning. I currently have a 750 W Gold unit that stays passive until 300 W is consumed. Paired with a 6500 XT, it stays passive nearly all the time.
 

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No fan off mode that I know of. So what if I hook the fan to the motherboard and set it to be controlled by VRM temp maybe? Can't use CPU cause it never breaks 67 and my GPU never exceeds 45c. I am probably not thinking on it right but maybe finding a way to use the MOBO for speed might be effective
I really wouldn't do that. The designers of that PSU took account of cooling at all power loads, so it's quite possible that some small, but vital component will overheat even at just a tiddly 200W load or something without some airflow. Only do this if you don't care about your PC and / or PSU as the PSU could take out the PC at the point of failure if modded from stock, even though it's a high quality model. Something tells me that you do care about them.
 
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P14S is probably the second loudest fan in Noctua’s lineup, behind the F12. I’d either go passive PSU or get a thermalright or bequiet 140mm
 
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Here are the Noctua noise ratings
Fans (noctua.at)

Noctuas are fantastic for performance (especially pressure), but there are definitely quieter fans out there - and a PSU doesn't need pressure.

Except for the crazy baffles many power supplies have right up against the fan.
 
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My EVGA Supernova P2 1200 was first purchased in Dec 2014.

It has a semi passive switch on the side of the case, which has been On since first installed.

I've NEVER heard or seen the fan operate in normal, benching or overclocking mode.

I even thought there was something wrong with the fan at one stage.

Best psu I've ever purchased !!!!
 
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most seasonics have passive upto drawing 450ish watts and when the fan kicks in there quite.
 
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