Power Supply enough for gtx 680

I would go with a 750 watt minimum modular power supply with at least a 50 amp 12V rail.

This one is fully modular with a 62A 12V rail. The GTX 680 is a POWER HUNGRY beast.

http://www.amazon.com/OCZ-Series-Fully-Modular-Performa...

It should be enough as the PSU states it has 741W total on the rails, and the amount of power is about half again what you need, but it doesn't have APFC (which while not a major problem on it's own is a bad sign) or any form of 80PLUS testing. I can't find any reviews on it either.

There are better cards out there for the money eg http://us.ncix.com/products/?sku=75186&vpn=GV-R797TO-3G... which should be cheaper than any GTX 680 and perform similarly too. GCN also OCs very well and destroys Kepler at high resolutions.

So this power supply won't run a single 680? or....

or can I power the card from both rails and be fine?

I just noticed something - 48A (the maximum you could draw from the 2 24A rails total at 12V is 576W. That probably isn't enough for a 680 and decent CPU. Get a 7970 (non-GHz) and a decent 600W PSU.

Edit: If you tell me your budget i'll find you a PSU+GPU.

Honestly with a GOOD 700w psu you have enough power to run 3 680s

http://www.guru3d.com/articles_pages/geforce_gtx_680_re...

Yours however to put it bluntly a horrid PoS. I would replace it, even a 500w model is more than enough for a 680 + any cpu. Since you have the cash for a 680 you really should replace it man. You could also drop down to a 670, overclock that, then spend your savings on a psu if you absolutely have to stay in budget.

170w x 3 = 310w + 190w (lets assume heavily OC'ed i5 3570k) and thats only at 400w. (lets then assume +50w for drives and fans.)

Edit: according to qbsinfos benchmark link it appears a 700w might not have enough power to run 3x 680s but you get my drift nonetheless.

I'm running an i5 2500 if that helps anything

a reference 680 needs 228 watts (which is slightly less than a "non Ghz" 7970 btw)
http://www.techpowerup.com/reviews/KFA2/GTX_680_Limited...
so 20 amps (which is 12V2 on that PSU) for that and over estimating 15 amps for your system (which is 12V1 on that PSU)

but that raidmax . . .something wrong with powering a high end card with a $60 PSU smells like fail . . .

Yea I think I'm just going to grab an upgrade power supply, before I get the 680 xD probably http://www.newegg.com/Product/Product.aspx?Item=N82E168...

I just want to know if thing would run stable at all on the raidmax, till I got a new psu

Yes. I wouldn't trust anything with that brand name on it to deliver the rated wattage.
I suggest:
CX600V2 - $60 http://www.newegg.com/Product/Product.aspx?Item=N82E168...
HD7970 - $400 + $20 rebate http://www.newegg.com/Product/Product.aspx?Item=N82E168...

While that may also be a $60 PSU I would trust it to deliver more power than the Raidmax..

EDIT: Missed OP's last two posts. The TX750 should run two 680s (or 7970s) ok, or you can save dosh and get the CX600V2 I linked.

You might be able to run stably on the Raidmax, but I wouldn't do any OCing, and if you had too many HDDs or fans it could kill it. No stress tests either.

I know it's a crappy power supply, but it's done a pretty good job of running my 2 6870s XD

Alright I'll get a new power supply, before I grab the 680 thank you guys  

The reason I'm headset on either a 680 or a 7970 is because I plan on buying a 2560x1440 monitor soon as well

Best answer selected by davey_63.

If you're going for that resolution you should get a 7970 as the extra memory bandwidth will make a big difference.

Also the reason I said you could run it for a while was that if it can run two 6870s it's only utter rubbish, not complete & utter explosive rubbish 

Got the 750 watt corsair   it's all hooked up and everything no more utter rubbish power supply ^^