Quote from: sethmo on August 15, 2011, 02:02:46 PM

I have two 4x5830 rigs, both on Corair 750w PSUs, they each pull about 750w with a Kill-a-watt meter. I've been running them like this for about a month, no issues.

You might want to look at adding a CX430 or such to this - I had a (probably identical) Corsair 750W pulling 800W at the wall and it was just a little too much for it. It handled it OK, still ran all of my components without any issues, but the PSU got really warm and started making an audible 'click' every few seconds. Removing one of my cards from it's rails got it back to it's happy place.

You're probably just fine at 750W at the wall, especially if it's not getting too warm, but just forewarning you might be near it's limits.