So I just read that whole thread, and now I'm pissed. Basically, either you just lied to me and I wasted my everyone's time, which is why i'm pissed (at myself for being an idiot), or I completely missed the post where someone achieved 750 MH/s at 150W on a 5970 (because no such post exists outside my delusional mind). The best I saw was 550 MH/s at 250w... that's not even close (because I have difficulty reading).
I can't help that you can neither read nor follow a subject. Undervolting involves lowering voltage however that requires lowering the clock also. The goal is to increase system MH/W, not keep maximum clock and magically get something from nothing.
It is possible to acheive 5MH/W on a 5970. I have verified it myself at the wall using kill-a-watt and using clamp meter at the card level.
Nobody (I mean nobody on the entire forum in any thread including this one) claimed you can get 750MH/S @ 150W. NOBODY. Since you are easily confused I will say it one more time.
Nobody but you was that stupid. Nobody. I don't care if you are pissed.
I don't care if you are too stupid to read a thread properly.
I don't care if you don't believe.
Your ignorance doesn't really affect the efficiency of undervolting does it?
You have progressed past annoying into being downright stupid.