hello, i am the happy owner of that procesor, it aint giving any problem, its just that u know humans, we always wanting more

i was reading some OC forums and i was wondering how far could i push mine without blowing my computer up, in BIOS it was set to 200 mhz, i moved it further and i reached 228mhz(3,42ghz) everything seem stable, but i want to push it a lil further lets say 3,80mhz(the max supported by my mobo) but when i pushed the mhz to 229, everything was ok until i rebooted for the first time after setting that speed, there appeared vertical strings on my screen, kinda if the video card was broken(integrated) but as soon as i re-setted back to 228mhz everything was normal again, point is: could i push it further by modding my cpu voltage?-how safe is it? tyvm.