Hi guys, yesterday I was doing some work on my pc like meeting and homeworks it's light work not heavy gaming, but then suddenly my PC turned off and then on but the screen won't work and then I noticed my CPU fan stopped spinning. So I thought it's from my CPU fan. I bought a new liqued cooler instead of my air fan cooler. Arrived today and plugged it in test the PC and same thing, all the fans working, motherboard lights working, gpu fans working, rams etc. Except my cpu fans. And the screen keep balck. I changed my PSU last week, upgraded from 600w to 850w. What is going on with my PC I nee