My friend got this Gateway LX awhile ago and he was wondering if the motherboard will work with a phenom II 920. The motherboard has a phenom I 9500 right now. The cerial number on the motherboard is no where to be found and it seems to be a pretty basic motherboard. Does anyone know the generic motherboard that comes with the Gateway LX desktop? And if so, is it compatible with a phenom II 920?