Hi folks! MSI Afterburner allows us to set fan speed of my 5870 below 21% with custom fan profiles. Despite the readings showing fan working with, for example, 10% rotation speed, it's RPM is almost equal with RPM at 21% (~1100). Is there a way to make it go ~500 RPM? I'm asking because at 21% the card is perfectly cool (38°C) but still hearable. I'd like to make it silent in idle (50-55°C won't be bad either). Thx in advance for any help!