Forgot to mention...
The fan control knob turned out to be very useful for a uATX case with no exhaust fan. It takes out the heat from a very hot overclocked chip (old 130nm Athlon64 Clawhammer). Set it right, and it will purr along, very quiet, ramping up as needed, able to remove lots of hot air. Could use another one. Heat in another poorly ventilated case is limiting overclocking.