ps4 pro random turn off like unplug the power

hi, my ps4 pro randomly shutdown like i unplugged the power cable and i need to detach the power cable and retach to power on. Some times it turns off after 2 minutes others after 10 moreover some times after I launch the game or quit the game. So I decided to go hard and open it by changing the thermal paste and checking the power supply with the multimeter (it gives me both 5V and 12V so it works). I haven't solved anything.

I also made a modification to the fan to send it to maximum power so as to understand if it was an overheating problem.

I haven't solved anything.

My last idea is to reflow the apu…

Anyone have a good idea ?