i have a big problem with my Late 2012 Mac Mini.
Whenever i start my Mac the fan spins up, makes a knocking noise along with a whistling noise and stops abruptly. This cycle continues for a while until eventually the fan spins up again and works as it should.
This has become a big problem because the fan takes more and more cycles until it works normally. I have reset the SMC many times, but that only solves the problem temporarily.
My question is: How can i fix this? Can i fix this by myself at all?