AMD FX-6300 Voltage

I have an amd fx 6300 and an asus m5a99x evo r2.0 motherboard. I have not overclock anything yet. I have had some crashes during Prime95 and I think my core voltage is set to offset mode. Could that be the problem and should I set it to manual and does anyone know what the manual voltage for an amd fx 6300 on my motherboard?

well i have an Asus M5A97 evo R2.0,with FX8350 i never had crashes with prime, but, what you can try, is to disable cool and quiet in the first place, the voltage is indeed set to offset mode, you can put that on, and leave everything on auto and try  to do some prime test again.

Grtz Angel ☺