my ps4 lights solid blue for 20 sec and turns off

Hello everybody
my ps4 lights up solid blue then turns off after 20 seconds, the fan runs for 2 to 3 seconds and stops. I hear the hard drive trying to boot up. I have the 12v and the 4.85 v. Do you have any idea of ​​the failure?
thank you in advance

I’m having a very similar issue, I don’t know if you have fixed it yet but I’m thinking it’s a fan/overheating issue

Merci de votre réponse, mais non aucun soucis de surchauffe ou de ventilateur . C’est peut être le pont sud, je ne sais pas je n’ai pas eu le temps de regarder à nouveau.