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PSU for sli GTX660

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  • SLI
  • Graphics
Last response: in Graphics & Displays
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August 4, 2014 4:58:49 PM

I was considering picking up a new GTX 760 that's on sale at New Egg right now. But then I considered, "what about running another 660 instead?" Right now I'm running a Corsair 600w psu but I'm afraid that won't be enough. I never come close to oc, does anyone know if I can keep what I have and just pick up a bridge and run with it? Or, should I get maybe a 750w or 800w to play it safe? I wouldn't mind saving the money of course. Also, is there anything else I need and what would you recommend as far as the bridge goes?

More about : psu sli gtx660

August 4, 2014 6:47:28 PM

The 600W Corsir, if it has a pair of 6 pin PCIe connectors, will work, but be marginal. A 750W will give you better headroom.
The SLI bridge usually comes with SLI capable motherboards. If you can't find yours, then yes, you'll need to pick one up. But before you grab the 2nd GTX 660, be sure your board does SLI and not just CF. And be sure the 2nd PCIe x16 slot is not simply X4 lanes.
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August 4, 2014 6:50:16 PM

Grab the something like an EVGA Supernova G2 750W and you won't have to worry about not having any juice for your SLI configuration.
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August 4, 2014 7:01:37 PM

Can you tell if it's SLI capable by looking at my profile? If not, it's Intel series 7 C216 chipset. Does that help? If not, would you mind telling me how to check? I'm still learning ;) 
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August 4, 2014 7:08:51 PM

Wow Builder, it just so happens I was looking at that EXACT PSU earlier on New Egg for $5.00 less. I was just hoping to save a little money and that means another 100 bucks even if it IS on sale :p 
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August 4, 2014 7:24:55 PM

Interesting, I just realized that originally this pc came with an AMD Radeon HD 7570 1GB GDDR5. This more than likely means it's Crossfire doesn't it? I will be so pissed because when I bought it, I made it clear to the sales idiot at DELL that I was going to immediately put an Nvidia card in it. Sorry, I don't mean to sound so vehement but those sales people REALLY don't know any more than I do at times. Also, I had a huge battle with this one just to get my system and then it shipped with the wrong card anyway. But doesn't Intel handle both SLI & CF? Thanks for the help so far guys, I hope you can straighten me out here.
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August 5, 2014 12:20:10 AM

I'm running 660Ti's on a 600w PSU so you should be good with yours, no need for a 750w PSU.
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August 5, 2014 1:39:10 AM

Thank you Mousemonkey! That's all the answer that I needed and it just so happens it's the answer that I really wanted to hear. I suspected that a 600w would be sufficient but I wanted to be sure. Now if I can just figure out the rest of this stuff, I should be good to go...

Mousemonkey said:
I'm running 660Ti's on a 600w PSU so you should be good with yours, no need for a 750w PSU.


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August 5, 2014 11:44:25 AM

Nyphrodel said:
Can you tell if it's SLI capable by looking at my profile? If not, it's Intel series 7 C216 chipset. Does that help? If not, would you mind telling me how to check? I'm still learning ;) 


That chipset does support 2 x PCIe 3.0 @ x8 lanes. But w/o knowing the MB make/model, it would just be a guess on my part. The name of the board is usually printed on the board below the CPU socket.
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