Overclocking athlon 2 x4 651 + asus F1a55 r2

[mux]

So i ve been looking for any decent guides to overclock my cpu, and i couldnt find anything but "raise this and if it fails raise that". Lets make it clear, i have absolutely no idea what to do in bios, how much voltage should i add and why would i even do that, because some people say i shouldnt raise voltage...:\
So i am looking for a proper instruction list on what to do exactly, i can raise the sliders or type numbers if i know exactly where to do this(please dont reply in bios, cos there are a lot of settings in bios,where exactly?) D:
I also have asus AIsuite 2 with settings like apu freq, cpu volt, vddnb volt, dram volt, sb 1.1 volt, apu 1.2 volt. i guess raising all those by the same amount would be a bad idea, there is also digi+ vrm with cpu load line, vrm frequency and cpu/nb loadline sliders that should do something for performance, right? so any help will be appreciated.

 

[LTC8K6]

x4 651 is not an unlocked chip, and it's tdp is already 100 watts.

Your overclocking options are limited to the 200mhz bus frequency I think.

You may need a better CPU cooler.

 

[SPBHM]

you can adjust the 100MHz bus, but the bus is tied to other things that are not locked, so you might lose digital display output signal and sata ports functionality if you OC to much