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When ever I start the console it starts up fine but the second I run a big game like COD or r6 it sounds like a jet engine is about to take off. I tried cleaning it and even replaced the fan but no good. Any suggestions?

Hi Did you replace the thermal paste? If the thermal paste has dried up it won’t do its job properly and won’t take heat away from the processor and it will just make it heat up with will make the fans run faster which means they will get alot louder Here’s a video guide on replacing thermal paste on a ps4 https://m.youtube.com/watch?v=oQLoBuZ-Zu… Hopefully this helps Any questions please ask Thanks:-)

This happens to mine. I just shop vac all the vent the best I can. Quites it down. People will tell that’s bad for it. I don’t know but that’s what I do.