hello i have just got my phenom 2 940 i have tryed some overclocking i have just increased the multiplier and the vcore and left all the other settings at stock when i run prime 95 on blend test and small fft i get the blue screen of death aftera couple of minutes what could be causing this and do i need to change some other settings i know this cpu has an unlocked multiplier please could anyone help me with this issue as iam new to overclcking thanx