seriously quiet PSU suggestions

Mercutio · 21 Apr 2015 at 01:14

I never seem to pull the trigger on the ones I should with this. Was looking at a CM V850 when they were about £73 around christmas, decided to leave it... they are now £115+.

Looking around at the moment, the superflower leadex based PSU's seem to be a decent setup but can anyone recommend a decent PSU from a GOOD OEM that's very quiet while supplying about 550w?

Might be a bit less than 550w these days as I've gone from a GTX480 to a 7950 and from 4 raid drives to a pair and an SSD but... just for the hell of it.

Now considering most PSU's are only quiet until around 60% load then they all ramp quite a bit, I'm guessing it's going to be a bigger unit. Would like to keep it under £100.

eVGA supernova G2 750w is looking like a possible at the moment (leadex based).

QUALITY psu recommendations please with a guesstimate of 550w load and a requirement of VERY quiet. Think like "Zen" or "hun, are you not talking to me?" kind of levels.

Mercutio · 21 Apr 2015 at 19:07

Cheers guys. There's a PSU i'm looking at on the members market, I think after that the evga supernova is probably the current favourite. Ta for the pointers

Mercutio · 21 Apr 2015 at 20:47

Well, missed the one I was after...

ended up with a Seasonic X-Series 1250w from the market so.. yeah, I think that'll do

had a look at Jonnyguru review first and it's still above 85% efficient on weak loads so it'll beat my current bronze for reading at the wall and... well, if I ever need the headroom.... :rolleyes:

Mercutio · 21 Apr 2015 at 21:33

Apparently it doesn't like being in the hybrid mode on low draw but still, it's going to be in the sub 300 rpm kinda regions so as good as not spinning

Mercutio · 21 Apr 2015 at 21:43

Just going on the jonnyguru review. He mentions:

"Now, about the semi-fanless mode. Where did I see the fan start? In test one. The unit would only run the low load test in fanless mode - the fan kicked on as soon as test one got going. Actually, I kind of prefer it that way. You don't want units this size getting that hot, even at low loads. Extreme heat cycling from jumping from a low load to a high load every time you fire up SLI is kind of hard on parts. Seasonic? Change not a thing on the fan controller. Those who want silence aren't often shopping for 1250W units anyway. And at no time could I hear the fan over the screamers in the load testers, so it's not really a loud power supply anyway."

So seems there's some sort of veeeeeeeeeeeeery minor issue with low draw and hybrid. He's a bit confusing there, think he means "semi fanless" and "fan on" rather than semi-fanless and fanless (as there's no option to completely disable fan). I might be reading it wrong though too. Still, it's totally going to fit the bill and then some

Everywhere says these are super, super quiet so I'll get something set up that works

Mercutio · 21 Apr 2015 at 23:45

Randall8686 said:
The Corsair HX i series dont use their fans until about 60-70% load. so using a 850w psu your unlikely to ever see it turn on

I hear good things about the HX and AX lines from corsair, if I found one cheap I'd have jumped on it. Seems I got a seasonic x-series sorted though (hopefully) so should all be good