One feature that I wouldn’t say I like being enabled on a computer (especially from Dell) is the Intel Turbo Boost.
The CPU will have a slight overclock on AIO Computers and will run hotter. To compensate, the internal fans will kick into high gear to keep things cool. This creates unnecessary noise from the fans attempting to pull cool air from the base of the computer to exhaust the warm air inside through the vents located at the top. To correct this, save any open documents and restart the system. Before the system has a chance to go through the POST, hit the F2 key rapidly on the keyboard