Fans won’t spin enough to cool the APU

Hello, I remember a person with a same issue as yours and after diagnosing everything related to thermal it was a fan problem causing it to not accelerate and all what he did is to replace it. You can read our conversation and check the similarities.

Where is the temperature sensor on the ps4 located? (Low Fan Speed)

First of all, I want to let you know that you’re doing great..It’s all about learning.. Trying and trying again until you get it right.. never give up.. Let me try and help you because i feel like you may have to go back and recheck your work and possibly do a couple things differently.The right thermal paste is crucial when it comes to PS4s. If you use a cheap paste, then you ps4 will let you know.. Artic silver 5 is good but thermal grizzly is better. Just make sure you use a thermal paste that has at least a 8.9W/mK or higher. Another area that you might want to take a look at is the dust underneath the heatsink grill. Here’s a video on my facebook page to give you a better idea. Good luck. https://fb.watch/3ET-FiWkr0/