Hi, any help would be greatly appreciated; I've been working on this for weeks now...
Specs:
cpu : AMD fx-8150
m/b : AM3+ ASUS M5A97 R2.0 AMD970
ram : 16g 1666mhz DDR3
v/c : sapphire radeon hd 7970 o/c with boost
h/d : kingston 240g ssd
o/s : win 8
p/s : corsair 650w
cooling : corsair H80
I have tried incremental steps, but constant freezing past 3.9Mhz ??!!!!! I've tried through bios, and even through AsusAI suite... I have done it all... Up the voltage, disable power saving options, tried playing around with the multipliers and frequencies... nothing seems to allow me to go past the 3.9 mark.
Even more sad, the only way it gets to 3.9mhz mark is with the automated 'Optimal Mode' in the bios EZ-mode... 

But when I start from there and deactivate settings and up the multiplier and voltages, it craches again... URGH.
I then put every setting in bios to default, put the multiplier to 20x, and kept everything else at default... Tried stress testing, and it freezes...
Do I have a dud ????