That's it. I'm looking for a case and I'm interested in Sentey J20. It has 4 fans incluided. 3 in the front and 1 in the rear. The one in the rear will be connected to de MOBO (B450M Ds3h), but the other 3 fans will go with the PSU. My question is: is a good idea? I mean, when I connect fans to psu i can't control the speed of them. What happens if I let the Pc on for more than 8 hours while fans are spinning at high speed? Will it affect fans' useful life?