Hi, I've had this machine for 7 months (base 15" model) and have started noticing the fans more. I could swear it used to be silent. When the CPU is idle (most of the time) and 40 degrees celsius (around 100F), the left fan is operating at ~2150rpm and the right fan at ~2000rpm according to iStat Menus. I'm not doing anything CPU intensive either, I have several apps open but nothing using a lot of CPU. I also have the MBP on a Rain Design mStand and can hear the fans when I'm sat a normal distance from the screen. If I put my ear close to the trackpad it is obviously more audible. Has anyone else experienced something like this?