Can you help my friend? :'(

First thing would be to remove any overclocking and return bios settings to default.

Next no one [other than you] has any idea what we are attempting to fix. Post ALL of the exact specs; ie exact mb installed, exact pw supply installed, exact ram installed, etc, etc. Note do not post "500W pw supply" Post the exact make and model.

Since the problem persists after clean installing windows, it is pretty safe to assume you have a hardware problem; ie failing mb, failing pw supply, etc.