Hi, I have an AMD Phenom x6 1055T @ 2.88GHz, on a BIOSTAR A870U3 mobo, and I can't seem to over clock it, using any of the features.  my mobo page online says its compatible,  and I just updated my BIOS, in case that helps.  if you need other info, just ask and I'll post it.

AMD Overdrive is for overclocking graphics cards, to overclock a CPU, you should do it from BIOS itself, if you don't know how, you should check into guides on how to do that, cause messing with wrong settings can kill the cpu, motherboard, ram..  and get aftermarket cooling.