Soldato
lmao, that isn't what the efficiency rating means
but by the by, as yes you can actually run most power supplies slightly past their rated maximum without any problems
From what I can remember the 80+ rating for efficiency basically tells you how much load you can put on a PSU while it remaining efficient and not creating any waste power which obviously turns into heat.
So for example a 1000w 80+ PSU can draw 1000w from the wall and deliver 800w actual.
So my point was that basically with these new PSUs that are 95% or what not you can draw 1000w from the wall and get 950w efficiently to the parts themselves.
Meaning that basically loading up a 850w with a 700w draw would be more than safe, and, won't start running very hot or guzzling waste power.
I will buy myself a power meter pretty soon and run some load tests on my PC with Prime 95 and Furmark. Any one know the name of a decent power meter?