So I was playing then I realised that I was lagging. So I checked my CPU temps and saw it was 100 C. I checked everything and when I removed the side panel, I saw that my heatsink fan was not spinning. So I decided to put external cooling by using an electric fan. After for 2-3 hours of gaming, It was getting kinda cold so I removed the electric fan and to my suprise the heatsink fan was working and my cpu temps were back to normal. Can someone explain how did this happen and I need a perma fix. Thanks