Firts, you need disable the C'n'Q, after, read this: http://www.tomshardware.com/reviews/amd-cpu-overclock,2396.html
the article was made with a X3 710, but with lock multiplier (like your CPU). So, read this and if you have some question write here.
P.D. Keep in mine that, with lock multiplier, if you rise the reference clock, also rise the HT link and memory frecuency. So, be carefull.