So I added a 250GB EVO to my 2011 iMac (HOORAY!) but the paltry 500GB WD Blue was just not cutting it. I decided to replace it with a 3TB WD Black, and while I correctly installed it so the fans didn't immediately race, the drive really heats up and eventually the fans to kick in, sometimes up to 5900RPM. At idle it sits around 108-110, during a longer game of Civ 5 it will be at 129. First off, is this going to effect the longevity of the iMac? Secondly, should I return the Black and go with Green? Thanks!