I was using the oc'ing tool, for ati cards, And it was going for about 10 min, and it oc'ed the core from 324mhz, to 396. And it was still going. Its just that im on stock cooling, and i dont know what could happen. And i avhe the Ati x300SE. so its a crappy card alreay, but will it stop when it gets to hot, or what?