Yeah well maybe the 50Gs don't unlock after all... Like I posted earlier, my 20G unlocked simply with the switch, nothing more. I tested it in Kombustor, ran the Heaven DX11 bench and played some games and all look well. Higher temp was 62 degrees in heavier games like Crysis 2 on Extreme and 1080p. I had a GTX 560 Ti before that but got an offer that I couldn't refuse. So I came back to the Red camp and don't regret the move at all. Love this card!