Ok, now that shutting down by itself doesn't happen anymore because a power cable was slightly unplugged. GTA IV and Crysis 2, even on the lowest settings, causes a system crash and an endless audio loop. The gpu does whir a bit, but temps don't seem to exceed 70 something degrees even under load. THe card is in a cooler master haf x!! This shouldn't be happening. Crysis 2 in windowed mode still freezes... Hard drive is defragged, crysis 2 runs off my ssd.