I have a 15" MBP 2017 base and my concern is even when hot i don't really see the fans spin up. I have installed a widget so I can read CPU temp and fan speeds. Today it hit 150 degrees with no speed change. The other day it was even hotter but I didn't have a way to get the exact temperature at that time. So at what CPU temp does your fans start to go beyond base of 2100 RPM? I checked with Genius bar today and to verify if this machine is faulty it would need to be sent away for a week. I would rather do a swap since I bought it 12 days ago and if so I need to do it on Saturday. Hence I need to quickly know if this is normal or not with no fan speed increase at 150F? Appreciate fast feedback!