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Old April 13, 2011, 06:36 PM
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What size of PSU would be needed to do a SLI set-up using 2
MSI N560GTX-Ti Hawk video cards ?




Would a Corsair 80-plus Gold AX750 work ?

Or

Would the bigger brother the AX850 be better ?
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Old April 13, 2011, 06:39 PM
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750 is fine, probably the sweet spot.
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Old April 13, 2011, 07:25 PM
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Two of these (well not rly HAWKs but I think the twin frozr ii is what u ment) power draw as high as 710 from the wall when benching/folding for entire system. Now keep in mind PSU is not gold certified so its probably using somewhere around 670W.

So a single rail 750W psu will be enough to power such a setup...however I personally would chose to go with an 850W psu since i don't like stressing the PSU too much (they can get hot/loud/unreliable when functioning near their limits) so pay a little extra for the headroom!
Last edited by BrutalGreen; May 23, 2011 at 07:39 PM.
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Old April 13, 2011, 07:28 PM
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i figure around 300 watts on the 12v for the pair,in normal gaming mode.
in more stressfull applications, you could add another 100 watts to be sure.

MSI Radeon HD 6970 Lightning 2 GB Review - Page 21/27 | techPowerUp
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Old April 14, 2011, 04:04 PM
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I have two Twin Frozr II 560Ti in sLI using a XFX 850 watts Black edition 71a 80+ silver...those PSUs are good, but also competitively priced....it's a Seasonic-built unit...

The wattage might be a little overkill, but I also have a lot of fans, and overclocking my CPU...I figure I have a little bit of extra...never hurts...
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Old April 14, 2011, 05:26 PM
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Quote:
Originally Posted by Delavan View Post
I have two Twin Frozr II 560Ti in sLI using a XFX 850 watts Black edition 71a 80+ silver...those PSUs are good, but also competitively priced....it's a Seasonic-built unit...

The wattage might be a little overkill, but I also have a lot of fans, and overclocking my CPU...I figure I have a little bit of extra...never hurts...
I was reading this and was thinking "hey I don't remember having said it in those words" then I realized you were not me...
Last edited by BrutalGreen; May 23, 2011 at 07:40 PM.
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