nah I want to know if my headphones will be overkill for the motherboard. i just found out that my mobo has got an inbuilt amp. (savitech sv3h712)i don't really get what your question is.
whatever your onboard sound processor can produce will be listed in the detailed tech specs.
but these headphones should be able to handle whatever that may be.
the sound quality produced depends on the source material and the settings you have put in place through your playback software and your audio processor.
are you afraid these might just be overkill for what your system can produce?