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Which Power Supply for 580 sli?

Last response: in Components
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November 13, 2011 9:59:23 PM

-ASUS P8Z68-V PRO
-Intel Core i5-2500K
-G.SKILL Ripjaws X Series 8GB (2 x 4GB)
-EVGA GeForce GTX 580 sli
-Intel 311 Series Larsen Creek 20GB SSD
-Western Digital Caviar Blue WD5000AAKS 500GB 7200 RPM
-CORSAIR H100 Liquid CPU Cooler

is 850W enough? i only plan on OCing my CPU.

More about : power supply 580 sli

a c 1108 ) Power supply
a b å Intel
November 13, 2011 10:58:47 PM

For a system running with two GeForce GTX 580 graphics cards in 2-way SLI mode NVIDIA specifies a power supply having a minimum of 900 Watts or greater with a combined +12 Volt continuous current rating of 62 Amps or greater and with at least two 6-pin and two 8-pin PCI-Express Supplementary Power Connectors.

The power supply unit's wattage should not be your major concern. Just make sure that the power supply you get has a combined +12 Volt continuous current rating of 62 Amps or greater. If your power supply is unable to produce the combined +12 Volt continuous current rating of 62 Amps or greater your system will not work properly no matter how high the power supply's wattage is.
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November 13, 2011 11:52:34 PM

thanks for the reply,
admittedly i don't fully understand what you're saying ko888 but i think i follow well enough.
I think i'll take you're advice on the -PC Power and Cooling Silencer Mk II 950W, mjmjpfaff.
November 14, 2011 4:57:36 AM

Davcon, those are a bit more than i was planning on spending.
I would defiantly consider if there is a good reason for going with of those though.
i was considering before this
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
but wasn't certain if it was the best fit.
i love modular PSU's but i don't mind a little cable management
a c 1108 ) Power supply
a b å Intel
November 14, 2011 6:59:25 PM

gnomio said:
Quote:
Our test system is a power hungry Core i7 965 / X58 based and overclocked to 3.75 GHz.


Total power usage 719w
http://www.guru3d.com/article/geforce-gtx-580-sli-revie...

750w wouldve been fine

If 750W would've been fine, as you claim, then why, in the article you linked to, does guru3d.com state "Also do the right thing and go for a Kilowatt PSU, have a little extra always ... at all times."?

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a c 1108 ) Power supply
a b å Intel
November 15, 2011 12:12:15 AM
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mjmjpfaff said:
why?

The PC Power & Cooling Silencer Mk II 950W (PPCMK2S950) has mediocre AC ripple and noise suppression. This seems to be a common characteristic with some of the power supplies made by Sirtec (i.e. High Power (Sirtec) is the OEM for the PPCMK2S950). The ripple and noise tends to rise with the power draw.

Reviews by many reputable review sites show that the Corsair TX950 is superior :

http://www.hardwaresecrets.com/article/846

http://www.jonnyguru.com/modules.php?name=NDReviews&op=...

http://hardocp.com/article/2009/12/01/corsair_tx950w_95...

http://www.pcper.com/article.php?aid=813

http://www.hardwareheaven.com/reviews.php?reviewid=879
a b ) Power supply
November 15, 2011 2:25:29 AM

ya looking at reviews the tx 950 is impressive. pretty much the same efficiency as the pc power & cooling 950w at the same price plus it is backed by corsair's great customer service. thanks for the info :D 
November 15, 2011 2:27:54 AM

Best answer selected by specfreq.
November 15, 2011 2:28:59 AM

Thats great, Corsair TX950 it is then.
!