low noise PSU

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sfield3

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Apr 28, 2017
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10,510
Can anyone recommend a reasonable cheap and reasonable low noise PSU? Budget needs to be kept to a minimum (or justification why I should spend more than £30)

Thanks
 
Solution
turkey3_scratch
I found a review of the Pure Power 10 700W http://www.kitguru.net/components/power-supplies/zardon/be-quiet-pure-power-10-700w-cm-psu-review/5/

The loudest it got under full load from 1m away was 33.8dB, which is nice and quiet. The 400W one will be even quieter, having a lower wattage and all. And also I see according to this http://www.jonnyguru.com/forums/showthread.php?t=14024 that the Pure Power 10 has DC-DC converters so it seems like a good power supply for that price TBH. I'd go for it especially since that seems like a low price for it.
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Generally, "won't destroy the computer in spectacular fashion or more slowly damage components long-term" strikes me as justification to not use a low-end fire hazard.
 
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My PC is; Asus P8Z68-V, Intel i5-2500k clocked to x45, 8Gb Vengeance DDR3, Nvidia GeForce GT 730, Kingston 240Gb SSD, WesternDigital 2TB HDD 7200rpm, 2 x 120mm and 2 x 140mm fans, CoolerMaster Hyper 212 Evo CPU air cooler with 120mm fan, running Windows 10.

Current PSU is 500w

I have owned a few PC's over the years and never had any PSU destroy the computer or be a fire hazard, but maybe I have been lucky. How much do I need to spend to power the system above and to have relatively low noise (I don't want to spend any more than is necessary).

Thanks


 
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Thanks GhislainG, the Corsair CX500 is £50, the CX500M is £65, the SilverStone SST-ST50F-ES230 v 2.0 - Strider Essential Series, 500W 80 Plus is £40 and (in the review https://uk.hardware.info/reviews/5777/7/500-550-watt-power-supplies-review-40-models-tested-noise-levels) the Silverstone is slightly quieter than the Corsair CX500M.

Is the Silverstone model any good? Should I go for that one?
 
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Wellthat's another psu and the Be quiet raing of that one is already higher,

dB(A) at 20% load 11
dB(A) at 50% load 11.8
dB(A) at 100% load 19.9
Click to expand...
other thing is that i don't see how they test these things.Even so might in the real world those nrs still be quiet anyway.

I had a Be Quiet psu and never really heard it,your system will not load that psu that much so shouldn't get too hot and the fan therefore shoudn't have to spin that high rpm,it's up to you.

Other thing looking at their conclusion is this,

There also appears to be truth to the claims about the PSU's lowered noise output. At low loads, even though the fan stays spinning, it's indistinguishable from silent units. Meanwhile, at full load we see a noise reduction of nearly 2 dB(A),
Click to expand...
 
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While it's true Be Quiet PSUs generally are quiet (and sometimes are more expensive than they should be or lack in performance), you can't really go by decibel ratings for any fans. Decibels is a function based on distance from the source. Speaker companies will often advertise the decibel ratings of their speakers, but if they are measuring it from 0.5 meters away it will be 6dB higher than the standard 1.0 meter distance.

I honestly call total bull crap that it is 14.5dB under 100% load. No PSU measured in any Tomshardware review has even gotten nearly that close to being that quiet.

The A++ Cybenetics rating for noise is <20dB average under all thousands of measured load scenarios https://www.cybenetics.com/index.php - it's not an easy feat to achieve that, the 14.5dB at 100% is definitely marketing at its finest.

Just for reference Corsiar has some very quiet power supplies. You can see the data on those here https://www.cybenetics.com/index.php?option=database&manfID=28 - none of them even get close to 14.5dB for average noise, and we're talking average.
 
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That's your opinion and i'm fine with that. I don't know how Be Quiet comes up with ratings like that,the above review linked by the op says they are quiet enough and my own experience says the same. Makes the point here that they are they silent enough for the purpose of the op.
 
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I know they're quiet (and I didn't mean to sound harsh or anything) but I just doubt they're that quiet.
 
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Thanks turkey3_scratch
If not the Be Quiet Pure Power 10 400w then what PSU would you recommend?
It's got to be reasonably priced (I was hoping around the £30 mark but seems I have to stretch to £45-£50) and it needs to be as quiet as possible.
 
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I found a review of the Pure Power 10 700W http://www.kitguru.net/components/power-supplies/zardon/be-quiet-pure-power-10-700w-cm-psu-review/5/

The loudest it got under full load from 1m away was 33.8dB, which is nice and quiet. The 400W one will be even quieter, having a lower wattage and all. And also I see according to this http://www.jonnyguru.com/forums/showthread.php?t=14024 that the Pure Power 10 has DC-DC converters so it seems like a good power supply for that price TBH. I'd go for it especially since that seems like a low price for it.
 
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