With a PowerColor HD6950 2GB Dual-Fan, I managed to unlock the shaders and now I have some doubt: 1. you know a bench / test or similar that uses the GPU at the same time and above all the RAM available (2GB)? ... to test if the overclock is stable 2. I would like to keep under control the temperature of the vrm which is detected only by the GPU-Z (this is the last version while with msi, rivatuner, aida is not detected): gpuz displays VREG Temperatures 1 always at 0 degrees and VREG Temperatures 2 which between 25 and 26 ° in Full: possible? ... reliable? .... other ways to measure them? 3. In Catalyst, "Power Control" what is it and how it set?