Power Supplies and OC

[sin0822]

So as long as load isn't approaching rated wattage, any quality PSU will do a top job at extreme overclocking? For example, my XFX 750W is pretty high quality, but isn't going to power any multi-GPU extreme overclock... would it do about the same job powering just an extreme overclocked CPU as a high quality 1200W unit?

You got to worry about peaks when you are overclocking, yea maybe it fits within TDP, but when you OC TDP is all but nothing.

I measured with my wall socket, account for efficiency and losses, and figured that at 1.1v my GTX 570 reference was pulling 80 watts more than TDP at only 900/1000.

I have a XFX 650 i think they are great PSUs don't get me wrong but it can't handle my GTX 570s in SLI and my 990x OCed, that is a job for my sparkle 1kw. and when both were OCed i saw peak at 980watts from teh wall, even though this PSu can push something like 1250watts on the 12v rail. BTW its a new unit, sparkles first shot at the big top, JG rated it amazing in performance, tieing the AX1000.