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Is 750w big enough for SLI 680s?

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Last response: in Systems
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December 14, 2012 9:00:42 PM

Hey Guys.

I would just like to know how much Wattage I'll need for this setup:

CPU - i7 3930K
RAM - Corsair Vengeance 32 GB (8×4 DIMM) 1600Mhz
GPU - NVIDIA GTX 680 FTW 4gb
MOBO - ASUS Sabertooth X79 Motherboard
HDD - Seagate Barracuda 3 TB
SSD - Samsung 830 256 GB

Will a Corsair HX750 be enough for all this? If I add another 680 what would the requirement then be?

Thanks for your time!

- Sam

More about : 750w big sli 680s

December 14, 2012 9:07:48 PM

It will do for even for SLI setup of 680 gtx.
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December 14, 2012 9:08:32 PM

djangoringo said:
It will do for even for SLI setup of 680 gtx.


Okay. So would 850w be too much then?

- Sam
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December 14, 2012 9:14:32 PM

If you want and have the money, you can buy one with 850w, the 750w will do, but if you want to stay 30% of the max load, get the 850w.
This is with the 680 GTX in SLI in mind.
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December 14, 2012 9:16:31 PM

djangoringo said:
If you want and have the money, you can buy one with 850w, the 750w will do, but if you want to stay 30% of the max load, get the 850.


Okay. Thanks! :D  Is the corsair HX850 good or is there something else you would recommend?

- Samo
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December 14, 2012 9:25:08 PM

There's the SeaSonic X-850, it's the best psu with 850w.
But that one is also a good one, see what's the cheapest.
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December 14, 2012 9:41:46 PM

Here is Guru3D's power supply recommendation:

GeForce GTX 680 - On your average system the card requires you to have a 550 Watt power supply unit.
GeForce GTX 680 SLI - On your average system the cards require you to have a 750 Watt power supply unit as minimum.

If you are going to overclock GPU or processor, then we do recommend you purchase something with some more stamina. Source http://www.guru3d.com/articles_pages/geforce_gtx_680_re... Agree with above the SeaSonic X-850, it's the best psu with 850w.
But that one is also a good one, see what's the cheapest.
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December 14, 2012 9:43:26 PM

bigcyco1 said:
Here is Guru3D's power supply recommendation:

GeForce GTX 680 - On your average system the card requires you to have a 550 Watt power supply unit.
GeForce GTX 680 SLI - On your average system the cards require you to have a 750 Watt power supply unit as minimum.

If you are going to overclock GPU or processor, then we do recommend you purchase something with some more stamina. Source http://www.guru3d.com/articles_pages/geforce_gtx_680_re... Agree with above the SeaSonic X-850, it's the best psu with 850w.
But that one is also a good one, see what's the cheapest.


The corsair HX850 is cheaper than the seasonic but only but $30.

- Samo
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Best solution

December 14, 2012 9:50:58 PM

Then get the corsair HX850, not much quality difference though, they're both modular, 850w quality psu with enough amps for two 680 gtx.
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December 14, 2012 9:52:48 PM

djangoringo said:
Then get the corsair HX850, not much quality difference though, they're both modular, 850w quality psu with enough amps for two 680 gtx.


I will. Thank you for all your help!!

- Samo
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December 14, 2012 9:52:57 PM

Best answer selected by samotage.
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December 14, 2012 11:52:08 PM

id rather get a xfx xxx 750w for 84.99. 670s and 680s dont draw a ton of power, but the 3930k kinda does....
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