It seems the minimum fan speed is 1200 rpm. My cpu normally hovers around ~35°C which is very cool. However, I often work in a silent environment and can always hear the fan (I have been spoiled after a year with the MB12). I have tried fan apps (Mac Fan Control and iStat Menus) and they are able to increase the fan speed. But is there any solution to lower the minimum speed? I would be more happy to slightly decrease the minimum speed and still hover at ≤50°C.