Can I SLI with my current PSU?

I was thinking about buying a second 770 for my rig and I need to know if I also need a new psu. You can see the specs in my profile. 

The motherboard supports 2 way SLI. You would be cutting it too fine with that PSU, in my opinion. It is a good unit. Don't think you would be able to stress the hardware. So by leaving the cards at their stock speeds might be advisable. Or grab a 750W for the extra assurance.

I think you "should" be OK. Just grab another GPU and see if it works. If not, you'll have to get another PSU anyways ;)

Shouldn't be a problem.

Okay, thanks for the quick replies!