Well the problem was already "solved", the videocard really blew =/, it was when i was playing a high definition game, + the cooler of the videocard was malfunctioning because of excessive dirty (lol its 4 years old and i never cleaned it), well and my font overheated my pc a lot, I only noticed it when it was too late... then i exchanged my video card for a better one and fixed my font so it won't overheat my computer again