Wondering if my 700W Corsair GS700 will support GTX680 SLI? Any Ideas?

cardey88 · Apr 22, 2013

I have recently bought a custom gaming setup, including power supply mentioned. 1 GTX680 (no overclocking), Intel Core i7-3820 3.60GHz (No overclocking), Asus P9X79 Intel X79 motherboard, 16GB corsair vengeance (4X4) RAM.
I rushed into my purchase a little bit without fully thinking it through for the future... But I am still more than happy with the current end result.
Somewhere down the line though I will be upgrading to GTX680 SLI.
I know this will push my power supply probably to it's limit.
I was just looking for some help, firstly to see if you think this power supply will cope and if not a recommendation on what to upgrade too, would be of help.
Thanks

jemm · Apr 22, 2013

Perhaps -- theoretically 750W should be the minimum.

You can have a try, tough it may experiment some troubles if both cards reach full load.

cardey88 · Apr 22, 2013

Thanks jemm,
I will bare that in mind. I may give it a go, see if it runs. It won't cause any damage if it can't cope though will it?
I may just bump it up to a 800W or 1000w to be on the safe side though, one to think about.

clutchc · Apr 22, 2013

You could run your entire system through a PSU calculator to see if you are marginal or OK.
http://www.extreme.outervision.com/psucalculatorlite.jsp

Each GTX 680 will use 195W when maxed out. That relates to 16.25A load for each card. Plus your 130W (10.8A) CPU. So you will need a +12V rail that can handle that and more. Your 58A single +12V rail may be enough.... or may be marginal depending on the rest of the system. And don't forget you will need 2 6-pin connectors for each card.
http://www.hwcompare.com/12344/geforce-gtx-680/

jemm · Apr 22, 2013

The Corsair GS700 will not damage your system if it isn´t able to handle your SLI in full load -- the system will just crash -- if it happens check the OS events and see if a power failure had occurred -- if so then you need a more powerful PSU.

As you are not able to overclock your CPU, then a good quality 750W PSU should be enough http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&N=100006519%2050001697%2040000058%20600014023%20600014094&IsNodeId=1&name=750W&SpeTabStoreType=1

cardey88 · May 25, 2013

Thanks for the reply's everyone, really helped in my choice. I think i'll wait a year or so and perhaps upgrade to a GTX Titan as it seems like the better choice for future proofing.
Thanks again.

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Wondering if my 700W Corsair GS700 will support GTX680 SLI? Any Ideas?

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