I'm trying to make my Nvidia 6600GT GPU run quieter and would like to set the fan on it so it automatically changes speeds when needed. It was set at 100% all the time which was a bit loud, but now that I've reflashed it's bios so that it can display temperature settings, I can now use applications that will monitor the temperature and adjust the fan speed. So far I tried EXPERtool and I can adjust the fan to a "fixed" setting of 95% and the noise is greatly reduced. When I set it to "Dynamic" mode, it goes back to 100%, and it will stay at 100% and will not change. When it's at 100% I can hear the fan also speed up to maximum speed too. The GPU temperature is always around 55 to 60 degrees. I would like to set it at dynamic mode so the fan will automatically be controlled, but why isn't the fan speed changing in the EXPERtool software? Even if I'm doing nothing, when set at "dynamic", the fan stays at 100% and I hear it spinning loud too, with no fluctuations in speed. ?