I do still have the old cpu. So i guess I will reinstall that and upgrade BIOS.
I dont think its my PSU, I have a good one thats has run many different setups, one including a 165 opty at 2.8GHz and 7900gt (different mobo though!!!)
Tried taking out the extra memory and resetting the cmos but that didnt work.
Ill be back in a sec i guess
Thanks for the help so far.... what a waist of my AS5 though lol.