Hi
Well i was having trouble with my 9850 overclock anything over 2.7 a few post back i pull my brand new 750w PS out of my
rig and put my 600w PS back in than BAM !! stable 2.81 trouble free doing anything i ask the PC to do. I have now hit 2.9 with
hight volts 1.45 stalbe air cool but the cpu get hot so i when back to 2.81 (before i was never able to run any clock over 2.7 stable at all with 750w ps ) so it maybe your power supply that mite be the trouble . It just something to think about keeping a open mine as
to what mine be the trouble.