980Ti SLI Will my 850w evga 80plus gold psu be enough

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pcprophet

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Apr 24, 2014
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Will my 850w evga 80plus gold psu be enough for 2x oc 980Ti and an oc 4930k? I am currently running an oc cpu with 1.34v and two GTX 980s with 110% power. After adding up my system on pcpartpicker with TitanX SLI I was at 748w, but I calculated my oc cpu to add 91w and adding 10% power to add 56w. I don't know if the 980ti will be 220w or 250 or if max system draw will ever occur. I am willing to only add 5% power to my gpus to keep it safe if I can not buy a new psu.
 
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An overclock to 4.4Ghz will only increase power consumption by 50-60w. This is under stress testing scenario's as well. So it's not much to worry about.
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azathoth

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For regular usage, 850w will be enough for 2x 980Ti's. However, just do not run anything like Furmark on both GPU's. These programs will load your GPU's up enough to pull 100w or more over what you would ever see from gaming.
 
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pcprophet

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As long as I dont bottle neck Im fine cutting it close. I thought I would have plenty extra until I started looking up how much w oc adds to cpu. Will my cpu or gpus ever run 100%? I need to beable to game and record with oc.
 
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azathoth

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An overclock to 4.4Ghz will only increase power consumption by 50-60w. This is under stress testing scenario's as well. So it's not much to worry about.
 
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