If you raise your voltage then your CPU will also age more quickly. AMD's sort of known to set their stock voltage to a height that will sort of make your chip age insanely fast (my Athlon II had an estimated lifespan of ~5 years on stock voltage, and I've already used it for 3, but it has the age of 4 because I increased the voltage for a bit), so, unless you have the money to replace it when you are unstable at stock in a year or so, do not raise the voltage above stock. In fact, I'd recommend finding the lowest voltage you can that is stable for a moderate overclock.
Also, just because nobody brought it up,
DO NOT OVERCLOCK IN LEAPS. Slowly overclock. DO NOT set the clock at your target and hope to get it first try. Work up to it. Also, DO NOT EVER try to get someone to tell you what to set your voltage to. EACH PERSON'S CPU IS UNIQUE, AND TAKES DIFFERENT VOLTAGES FOR DIFFERENT STABLES. You need to figure out your voltages for yourself.
Also, just because nobody brought it up,
DO NOT OVERCLOCK IN LEAPS. Slowly overclock. DO NOT set the clock at your target and hope to get it first try. Work up to it. Also, DO NOT EVER try to get someone to tell you what to set your voltage to. EACH PERSON'S CPU IS UNIQUE, AND TAKES DIFFERENT VOLTAGES FOR DIFFERENT STABLES. You need to figure out your voltages for yourself.
in a perfect world we would all be piles of sand with no ability to form coherent bodies of body