If you want to learn how to OC rather than just have others telling you what to do, study this http://www.overclock.net/amd-general...ing-guide.html
It'll give a lot of real good info as in "How to" plus give you a path to follow. While others can get you there (your goal) it's always best to learn the basics and test your own chip as to it's own needs and demands. Even someone with the exact same components can't give you any more than a "real good guess" as to what voltages to use. This should get you close, but may not be optimal.
Not all chips and mobo are created equal and may require different voltages, maybe more, maybe less in some cases. If you want an optimum system OC you'll need to learn your own chips limits by making slow increases and follow with testing. It does make a difference for the end result and you'll spend less time chasing your tail when you can't figure out why your system it's stable.
Need or want more help? Feel free to PM me I'm more than happy to help those that ask for it.