- Setup the driver for the Intel dynamic tuning (It its purpose is automated thermal control and fan regulation).This probably is a general feature and will probably be beneficial. It did not fix the fan or heat. - Disable Turbo Boost within BIOS. (Startup-F2-Settings-Performance- Intel Turboboost) After the turbo boost was disabled my Fan noise went to an acceptable level. The heating is probably also a bit less, but I think this is more a design issue. 
Hi! My Dell G15 5511 is really hot. I only use a browser, and gets hoter, and hoter, meanwhile the fans spins slow. I try "cool mode", "performance" mode etc, and all the same. How can is cool down the system?  
Dell G15 5511 heat, ventilation problem