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Need help: PSU for new rig

post #1 of 10
Thread Starter 
Im getting a new rig with Sandy bridge or Bulldozer and i plan on getting a GTX 580 and SLI with another 580 by October, and i was wanted a PSU that would support two 580 and that is a modular unit. I found one but not sure if its any good
http://www.newegg.com/Product/Produc...82E16817121067

and my price range is around $130 max

EDIT: The price range can be a few dollars over like 10 dollars
Edited by kpnamja - 6/11/11 at 11:38pm
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Kpnamja
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post #2 of 10
IF you can add another 10 bucks, get this http://www.newegg.com/Product/Produc...82E16817139010 or even this http://www.newegg.com/Product/Produc...82E16817151088
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post #3 of 10
279.00 and you can get an AX1200. I have one and it's the beat PSU I have owned.
http://www.newegg.com/Product/Produc...dex-_-17139014
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post #4 of 10
Oops didn't see your spending limit.
I would save up and get the ax1200 if you are going dual 580s
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post #5 of 10
You want 750W--or possibly more maybe if you're going with the 8-core Bulldozer for some reason and overclocking everything a decent amount and running high loads all the time--for SLI GTX 580.

The best unit for the job is probably the XFX PRO750W XXX Edition ($130, $115 AMIR):
http://www.newegg.com/Product/Produc...82E16817207016

It's a Seasonic M12D unit, like the old Black Edition, just with a different exterior and color. As an idea of what to expect:
http://www.jonnyguru.com/modules.php...Story&reid=184
http://hardocp.com/article/2010/04/2..._supply_review
http://www.hardwaresecrets.com/article/933
post #6 of 10
well apparently an 850w PSU won't be enough for overclocked 580 SLI. In that case I would get a 900w+. I would normally have said a good 750w PSU will be enough and an 850w psu will be better, however in this thread I was corrected. http://www.overclock.net/power-suppl...u-480-sli.html

It originally started off about the 480s then went on to the 580 SLI.
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post #7 of 10
850W is plenthy for a two GTX580 SLI..

A single stock GTX580 uses ~220W in games CLICK HERE (in Crysis 2 benchmark, Average= 214W , Peak= 229W)

Even with overclock on GPU's a good 850W unit is all you need..


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post #8 of 10
Thread Starter 
Quote:
Originally Posted by mikeaj View Post
You want 750W--or possibly more maybe if you're going with the 8-core Bulldozer for some reason and overclocking everything a decent amount and running high loads all the time--for SLI GTX 580.

The best unit for the job is probably the XFX PRO750W XXX Edition ($130, $115 AMIR):
http://www.newegg.com/Product/Produc...82E16817207016

It's a Seasonic M12D unit, like the old Black Edition, just with a different exterior and color. As an idea of what to expect:
http://www.jonnyguru.com/modules.php...Story&reid=184
http://hardocp.com/article/2010/04/2..._supply_review
http://www.hardwaresecrets.com/article/933
Ive heard many people saying that 750w may not be enough for 580 SLI
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Kpnamja
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post #9 of 10
Quote:
Originally Posted by kpnamja View Post
Ive heard many people saying that 750w may not be enough for 580 SLI
It depends on how you use them and what you're running them with, as mentioned above. If you're upping the voltage and want to max out power consumption with stress tests, then yeah you'd want more than 750W. If you're running the GPUs near stock clocks or just gaming, then there's no problem.


But I just noticed the Lepa G900 (rebranded Enermax Modu87+) is selling for $130 now? Seasonic M12D is maybe a little better behaved than this, but really now, this is definitely sufficiently good, and it should be a little more efficient and much quieter too:
http://www.newegg.com/Product/Produc...82E16817194083

http://www.jonnyguru.com/modules.php...Story&reid=223
http://www.pcper.com/reviews/Cases-a...Review?aid=973
Edited by mikeaj - 6/12/11 at 12:05am
post #10 of 10
Quote:
Originally Posted by kpnamja View Post
Ive heard many people saying that 750w may not be enough for 580 SLI
It will be if it's a good unit. Here:

http://www.newegg.com/Product/Produc...-006-_-Product
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