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GTX 780ti SLI on 850W Power Supply

Last response: in Graphics & Displays
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July 4, 2014 3:39:27 AM

I am looking to get 2 780ti's for my system but unsure of whether my power supply will be able to support it. I have an XFX 850W Bronze rated power supply. I will probably be getting two of the zotac gtx 780ti oc for my system because they are the cheapest and still factory overclocked. Do you think this will be enough or should i get a 1000W Corsair Gold rated PSU?
Thanks
a b ) Power supply
July 4, 2014 3:43:33 AM

Hi tom_taylor97
two 780 ti in sli will require minimum 950 watts so 1000 watts will give you some headroom , your 850w will not be enough
where are you from i will try to find you the cheapest quality psu i can
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July 4, 2014 4:35:03 AM

thanks micky but i think ill stick with the corsair psu becuase its one of the cheapest on the site i buy parts from ans i can then use corsair link but thanks anyway
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a b ) Power supply
July 4, 2014 4:45:43 AM

thats fine m8 , just be sure to get a TX ,HX or AX psu from corsair as these all have high grade japanese capacitors
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a b ) Power supply
July 4, 2014 4:46:17 AM

dont get a cx or rm or vs , especially cx or rm
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July 4, 2014 6:28:17 AM

mickypheonix said:
the rm series have low grade capacitors and overheating issues , best to avoid them
http://www.scan.co.uk/products/1000w-evga-supernova-ful...
or
http://www.scan.co.uk/products/1050w-seasonic-x-series-...
EDIT: they both have high grade japanese capacitors and the evga has a ten year warranty


Thanks for the help... wanted to use corsair link but dont wanna pay the price for the good corsair power supplies... which would you advise out of the two you suggested?
Thanks

Edit: I was thinking of the EVGA because it mentions a 10 year warranty with the manufacturer as well as 2 years with retailer.
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Best solution

a b ) Power supply
July 4, 2014 6:32:05 AM

the supernova is only about £10 more expensive than the rm , has a ten year warranty and high grade caps
and will run your cards just fine
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July 4, 2014 6:34:18 AM

mickypheonix said:
the supernova is only about £10 more expensive than the rm , has a ten year warranty and high grade caps
and will run your cards just fine


Ok thanks a lot for the help... i know little to nothing about power supplies
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a b ) Power supply
July 4, 2014 6:37:23 AM

better to buy quality than throw your money away on a psu that lets you down with low grade capacitors , Poor quality capacitors break down quickly over time resulting in spiky voltage being delivered to the motherboard. This results in motherboard breakdown or poor cpu performance.
a ten year warranty also is hard to beat
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July 4, 2014 6:39:40 AM

mickypheonix said:
better to buy quality than throw your money away on a psu that lets you down with low grade capacitors , Poor quality capacitors break down quickly over time resulting in spiky voltage being delivered to the motherboard. This results in motherboard breakdown or poor cpu performance.
a ten year warranty also is hard to beat


Yeh i thought 5 years was good but 10 is great.
Thanks
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a b ) Power supply
July 4, 2014 6:40:34 AM

glad to help , i hope it all goes well for you , all the best
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