dyno0919 Same thing here http://www.youtube.com/watch?v=sRo-1VFMcbc Looks like reports of it are starting to pop up, it's not an isolated incident.
farthestkris seems to be a heat issue eh ?
As a first step, I increased the voltage from 0.938 V default to 1.000 V, maximum stable clock was 815 MHz - faster than GTX 580! Moving on, I tried 1.2 V to see how much could be gained here, at default clocks and with NVIDIA's power limiter enabled.