PSU Advice - Long & Quiet & Efficient Enough

ginjaninja

ginjaninja

ginjaninja

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Looking for some advice please on new purchase in the next month or so. (in uk from ocuk)

for [email protected],1xGTX970,10x5400rpm sata (in 3,3,4 configuration),1xSSD,Asus X99-S,Cosmos II Case (V. Large Case), Air Cooling.

Priorities are (highest to lowest) Lowest Noise, Value (over 10 Years), Efficiency @ low loads, Price (Over 10 Years)...and that that the cables eg, ATX fit neatly around the back of board (ie are long)..Warranty (albeit it does go to value somewhat)

The server/gaming pc is on 24/7 and estimated to consume 75W at idle (it never sleeps), a state which it is 75% of time.

I entered the hardware into http://extreme.outervision.com/psucalculatorlite.jsp

and 530 Watts is recommended.

What PSUs would people recommend please?

points im musing over are...
Do i have to buy more Watts to get more quiet. looking for as close to silence at idle as possible and quiet at load.
Am i right to think more Watts is less efficient..Eg a 750W PSU would be 10% utilised @ idle which equates to a poor efficiency rating on PSU (unless titatium rated), a 1KW would be even less efficient (as even lower load at idle).
Am i right not to worry about how many sata cables come with unit, i can buy a 4 port extension for £5.
Needs to not exacerbate 970 coil whine.

thank you
 
The warranty is nice to have for sure, but is my lowest priority....
Any more quiet psus out there? or is the EVGA the best for no/low noise...
Anything as good with less watts (for greater efficiency at low loads)

thanks...
 
@Shivvy011

Superflower Fanless PSU's

http://www.overclockers.co.uk/showpr...odid=CA-000-SF
http://www.overclockers.co.uk/showpr...odid=CA-012-SF

I have 2 of these now the 500w and the 430w excellent PSU's very good on power showing 10w lower in my ESXI server which now consumes 45w as opposed to 55w before. Had to replace an aging Antec Phantom 500W.

Both are Platinum power Supplies.

The 500w is my main system replacing a coolermaster 1000w.

It can go to by overclock to 600W also.

Here is reviews

Silent PC review of Kingwyn Striker STR-500w which is same model.

http://www.silentpcreview.com/Fanless_PSUs_Kingwin_STR-500_Silverstone_ST50NF

http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story5&reid=244
 
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I'd look into Corsair's PSUs. Some of them (RM and AX series I believe) are 0% fan until some higher temps being reached. I recommend these, built few PCs with Corsair PSUs and neither of them failed (yet).
 
Nichrome said:
I'd look into Corsair's PSUs. Some of them (RM and AX series I believe) are 0% fan until some higher temps being reached. I recommend these, built few PCs with Corsair PSUs and neither of them failed (yet).
Click to expand...

im using corsair ax860 and its perfect.
u have a switch there on the psu. if u use hybrid mode the psu doesnt use its fan at all unless necessary(high loads=high temps). it takes a lot of load to make it spin to be honest.

check here:
http://www.gamespot.com/forums/pc-m...coolermaster-ax860-hybrid-or-normal-31426832/
 
Only look at ax corsair PSUs, the RM are pretty average with poor internals compared to supeflower PSUs and higher fail rates iirc
Super flower leadex also have hybrid modes :)
 
http://www.silentpcreview.com/Recommended_PSUs

suggests that the atx spec requires a fan in psu, and not having one might just mean more cooling/noise elsewhere, recommending fanless only for low power systems. So given this this have a somewhat meaty gpu in it and 10hdds, i will steer clear of fanless and look at a psu with a dynamic fan profile...

i would like to get a psu rated for 600w / high efficiency at 75W load, but the recommendations are all a bit bigger...but perhaps this is where the quality is.

thanks for advice
 
ginjaninja said:
http://www.silentpcreview.com/Recommended_PSUs

suggests that the atx spec requires a fan in psu, and not having one might just mean more cooling/noise elsewhere, recommending fanless only for low power systems. So given this this have a somewhat meaty gpu in it and 10hdds, i will steer clear of fanless and look at a psu with a dynamic fan profile...

i would like to get a psu rated for 600w / high efficiency at 75W load, but the recommendations are all a bit bigger...but perhaps this is where the quality is.

thanks for advice
Click to expand...

http://www.overclockers.co.uk/showproduct.php?prodid=CA-024-SF

One of these would be ideal for you i reckon.

90% efficiency at low loads(20%),high quality unit and it has Eco mode,which only turns on the fan when temps reach a certain threshold


I got the 750w version of this PSU when on desktop the psu fan does not turn on,even while gaming,it often doesn't even require the fan the turn on.

Excellent line of PSU's,The EVGA G2 psus can be had for around the same price/maybe a few £'s cheaper.They are basically the exact same PSU as the SF leadex,but come with a 10 rather than 5 year warranty.
 
the sf leadex 650w looks interesting....a bit nervous that one of the ocuk customer reviews say power cable is only just long enough for 450d case and cosmos ii is a lot bigger than that...

i was coming to the conclusion that the atx standard defines motherboard/cpu power cable length and they were all the same...but perhaps this is not the case...

indeed corsair psus cable lengths are almost identical across range for power cable length..
http://www2.corsair.com/training/psu_cable_lengths.pdf


although this one suggests otherwise for other older models
http://www.moddiy.com/pages/Power-Supply-Cable-Length-Comparison-.html


maybe just need to buy an extension cable
 
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ginjaninja said:
the sf leadex 650w looks interesting....a bit nervous that one of the ocuk customer reviews say power cable is only just long enough for 450d case and cosmos ii is a lot bigger than that...

i was coming to the conclusion that the atx standard defines motherboard/cpu power cable length and they were all the same...but perhaps this is not the case...

indeed corsair psus cable lengths are almost identical across range for power cable length..
http://www2.corsair.com/training/psu_cable_lengths.pdf


although this one suggests otherwise for other older models
http://www.moddiy.com/pages/Power-Supply-Cable-Length-Comparison-.html


maybe just need to buy an extension cable
Click to expand...
the cable length of the cpu and and atx cables are the only neagative aspects of these PSU's,they are shorter than most standard PSU's..


I missed you mention in your OP actually that you had a very large case.
With a leadex unit you would almost certainly need an extension cable for the CPU cable.In this case i would just go an EVGA G2,if its back in stock when you are ready to order,as the price would work out the exact same after buying an extensi9on anyways.
 
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Having read through lots of Dba graphs on techpowerup..i minded towards for the sf leadex 1000.
it has 35Dba at 400-600w which will be my peak.
platinum rating cant hurt..but twice the price.
still over 10 years (never had a psu fail on me)...its neither here nor there.
 
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