Is Air Cooling Viable when using 3-SLI?

Secrios

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Sep 3, 2011
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Lets say I had three Titan Xs linked up in SLI.
Is the setup doomed to overheat without water cooling or can fan cooling suffice?
 

Would the Corsair 540 Air case with noctua fans do the trick?

 

Just took a look and it seems pretty cool. I'll stick with the air style I know and love for now but if I get round to it, I shall upgrade to liquid somehow.