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Psu help!

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June 23, 2010 11:42:20 AM

Which psu is better for my setup

amd phenom 955
m4a88td-m-evo
corsair 6gb ddr3 @ 1600
asus hd 5970

Psu 1:

OCZ GameXStream 850W
http://www.bjorn3d.com/read.php?cID=1096&pageID=3381

4x 12v rails @ 20A ea, 2x 6+2pin pci and 2x 6pin pci.


Psu 2:
cooler master gx 750w
http://www.coolermaster.com/product.php?product_id=6643

single 12v rail @ 60A, 4x 6+2pin pci.


Which 1 of two will be better?
thanks in advance

More about : psu

a c 243 ) Power supply
June 23, 2010 11:46:36 AM

Any other choices ?
June 23, 2010 11:49:06 AM

if the psu is under £90/$140 delivered to my door in uk :) 
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a c 243 ) Power supply
June 23, 2010 12:09:59 PM

Check on the Antec EA750.
I'm in the States, so searching is up to you unless you provide a link to where you intend to purchase
June 23, 2010 5:37:59 PM

by looking at ur links i can see psu 2 is as powerfull as crosair hx 750w and its only £73 compared to £118.

coolermaster gx : 60a 12v+Single rail 750w psu £73
crosair 750whx: 62a 12v+Single rail 750w £118


so shell i get the cooler master?
a b ) Power supply
June 23, 2010 5:40:39 PM

There's no cooler master in my links. Stay away from cooler master.
June 23, 2010 6:12:44 PM

why stay away from coolmaster? it has some decent reviews.
a c 139 ) Power supply
June 23, 2010 6:25:30 PM

Did you find a good independent review of the CM 650GX? Those customer reviews ('it works good for me') don't always give you a good indication just how good a PSU it really is.
a c 121 ) Power supply
June 23, 2010 6:32:31 PM

Customer reviews are of extremely limited value. Look for a competent technical review (e.g. jonnyguru, hardwaresecrets) that includes load testing and waveform analysis under realistic operating conditions. Some Coolermaster PSUs are garbage, a few of the newer ones are good. All Antec (except <500W Basiq), all Corsair, and all Seasonic are good. Unless you're planning to Crossfire, then as mosox said 650W is enough.
June 23, 2010 6:33:45 PM

psu is the only part which i dont have deep understanding about, i dont get whats the difference between quad 12v rails compared to single powerfull rail. i DONT KNOW which 1 is better and provides higher power for sli or single card.

can any 1 explain should i get a quad rail psu or single and if so why?. and secondly which 1 will provide more then enough power for my setup. 1 last thing... whats the difference between the two i mentioned above^ ?

coolermaster gx : 60a 12v+Single rail 750w psu £73
crosair 750whx: 62a 12v+Single rail 750w £118


why is crosair better then coolmaster when they both are nearly identicle specs.

June 23, 2010 6:45:48 PM

just read the review, thanks you

1 last think for sinlge card and multi card config
is a single powerfull 12v rail better then quad 12vrail at lower Amps?

or shell i say whats the difference between the 2 for multi gpu /single gpu
a b ) Power supply
June 23, 2010 6:48:44 PM

That mobo doesn't support CF.
June 23, 2010 6:50:03 PM

yes i know, but i want to know whats the difference between quad 12v rails and single 12v rails. and does it have any effect on multi gpus?
a c 139 ) Power supply
June 23, 2010 6:50:42 PM

helloshayan said:
or shell i say whats the difference between the 2 for multi gpu /single gpu
It's not an indication of quality. Everything else being equal there isn't any reason to choose a single rail over multi-rail PSU.
June 23, 2010 6:54:31 PM

ty, understanding of psu has increased slightly:]

wr2 whats ur psu (750w) recomendation for my setup?
which is under £90/$140

what do u think about this 1:
http://www.ebuyer.com/product/124736
ocz gamer extremes 850w
a c 121 ) Power supply
June 23, 2010 10:17:43 PM

A multi-rail PSU can be safer. There's marketing in it too, of course, but read the vendor voice thingy from Antec on Tom's main page. That explains it pretty well.
a c 139 ) Power supply
June 23, 2010 10:42:38 PM

I could not find any review of the OCZ GameXStream 850Watts which is a little unusual.
Given the the price of the Corsair 850TX is only £24 more and it comes with a 5yr (vs 3yr for OCZ) warranty I think it might be a smart move going with Corsair.
Corsair TX850 Power Supply review @ JonnyGuru
a c 121 ) Power supply
June 23, 2010 11:53:49 PM

I would also choose Corsair over OCZ.
!