So i bought a pc last week, its got a fx 6300, a gigabyte 970a-ds3p motherboard, 2x4gb corsair vengeance ram, a sapphire r9 270x and a 500gb HHD and a corsair VS450 psu. A nice little office pc for only £100. But after using it for a while i find that it keeps freezing up, more than i'v ever...