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Power Supply are there any silent SFX PSU?
- Thread starter Marzipan
- Start date
I am aware of this fanless SFX PSU only:- Silverstone Nightjar NJ450-SXL 450W
I have heard that Corsair SF450 is quiet too. But I suppose when it is under heavy load, its fan will spin at max speed and may produce some audible noise. Even if using a passive PSU like the Silverstone above and under heavy load, the case fans will probably spinning quite fast (as the system is under heavy load) and thus producing some aduible noise too, which might just cover up noise from the PSU. My 2 cents.
I have heard that Corsair SF450 is quiet too. But I suppose when it is under heavy load, its fan will spin at max speed and may produce some audible noise. Even if using a passive PSU like the Silverstone above and under heavy load, the case fans will probably spinning quite fast (as the system is under heavy load) and thus producing some aduible noise too, which might just cover up noise from the PSU. My 2 cents.
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I use Corsair SF450 Gold.
To me it's darn silent that sometimes I think the fan is faulty & never spins at all.
However, my load is indeed considered low. CPU TDP is 84w and GPU TDP is 95w.
To me it's darn silent that sometimes I think the fan is faulty & never spins at all.
However, my load is indeed considered low. CPU TDP is 84w and GPU TDP is 95w.
There are countless happy owners of the Corsair 600w and 750w platinum
i've never seen the fan on my SF600 platinum spin up. so for me its essentially fanless. load is pretty low though for my usage (no gaming, bursty productivity-type workloads)
This seems to be very much hit and miss. I have had my SF600 Gold for nearly 4 years now, bought it right after initial release. It has always been very quiet with no coil whine.
Agree with all the corsair SFX comments so far. Assuming the rest of the cooling in the case is managed competently, the SF series, especially the platinum ones are extremely quiet. The fans do not even spin up until a certain load/temp is reached. Of course ymmv since is something slips past their QA, an occasional unit may display coil whine...
Here is my setup with SF600 platinum, very notisable coil whine, also the fan is not silent at 350W load.
I think like what some mentioned, it's a hit or miss with the Corsair SFX power supply. I have the SF600 Gold for about 2 months. It is dead silent. The fan doesn't spin at all unless I am gaming for about 40min or more. Even if it spin, it's still much quieter than the GPU fan.
I guess I am from the unlucky users - mine has both coil whine and also the fan starts 5-10 minutes after boot without even touching the PC and never stops. Using Sliger SM550 which we know is very ventilated.
Granted, it spins very slow and I don't hear it at all.
Granted, it spins very slow and I don't hear it at all.
Well I had 2 Corsair SF600 Gold PSU, 1 Corsair SF450 Gold. Basically they tend to be pretty noisy in warm environnement. Corsair is using BS 92mm fan inside their SFX PSU...that could be really loud.
Fan on Corsair SFX PSU are starting/stopping following load OR internal temperature.
Basically everytime I was launching a game, SF600 fan start spinning, quite fast & noisy...but while gaming, it's ok. However when I was shutting down game, SFX PSU fan is still spinning (almost forever) fast & noisy while on idle...so very very distracting & annoying!
However I found best mod (really easy one) : replace psu fan by Noctua NF-A9x14 PWM (spinning around 1000 rpm)
Since this mod, SF600 is just running smoothly and silently..
Plenty of of SF series psu also did this mod.
After on SFX-L size, I love my SX800-LTI...as you have a true fanless mod, only related to load. Above 160w load, fan is starting to spin...and it's going back to sleep once load is over.
Fan on Corsair SFX PSU are starting/stopping following load OR internal temperature.
Basically everytime I was launching a game, SF600 fan start spinning, quite fast & noisy...but while gaming, it's ok. However when I was shutting down game, SFX PSU fan is still spinning (almost forever) fast & noisy while on idle...so very very distracting & annoying!
However I found best mod (really easy one) : replace psu fan by Noctua NF-A9x14 PWM (spinning around 1000 rpm)
Since this mod, SF600 is just running smoothly and silently..
Plenty of of SF series psu also did this mod.
After on SFX-L size, I love my SX800-LTI...as you have a true fanless mod, only related to load. Above 160w load, fan is starting to spin...and it's going back to sleep once load is over.
The NJ450-SXL 450W is what I am building my unit around - expensive but very well made.
Why is the power cord not connected to the connector inside the power supply?
Different tensions?
ok, I understand it connected to matherboard
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My SF600 Platinum is dead quiet unless I do a stress test, etc then still cannot hear it over the other fans, CPU, GPU and case fans. During normal use the fan never comes on, never heard any coil whine either. I might replace it soon as looking into a 4070, Super, Ti, etc but for the 3060 ti it does the job very well, I plan on getting the SF750 if I upgrade the GPU.
I also have a SF600 Platinum and I agree with what you say. I also have a 4070 Ti and 13600kf and I have never had problems with power, doubt you need to upgrade.
Great and thanks, I was not sure if needed or not yet, hoping not, if I get a regular 4070 or S or Ti, looks like it will be just fine with the 13600k CPU.
(I have quite a few of the parts and considering building an AIO FormD T1 so might sell my Fractal Ridge complete so would need a new PS so was considering the SF750)
Rick
(I have quite a few of the parts and considering building an AIO FormD T1 so might sell my Fractal Ridge complete so would need a new PS so was considering the SF750)
Rick
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