I reduced the vcore to allow for Asus overvoltage and restarted, everything seemed fine, aha I thought and then suddenly it destabilised again. I cried a little, shut it down and sulked and went and had some tea.
Decided to give it one more try, booted up, everything seemed ok, started photoshop, nothing, accessed the DVD drive, nothing. Then, all of a sudden there was the *berlink* from my speakers (which were previously off) as my PDA began to sync and guess what happened ? yes thats right..... Its my goddamn PDA. Turned the PDA off, voltages stabilised, man, I mean really. Its got its own seperate power supply its only when its on and synced that the voltages destabilise.
I'm not wether sure to be worried about my PDA or my MBs USB or my PSU now. Its only drawing 110W at the desktop when it does it !
Edit: it froze again with the pda disconnected but I now think thats coretemp.
edit: and another big dip seen when starting a game but nothing higher than 180w showing on the mains plug. 171W running orthos.