PCIE_PWR1: What is it for? - Page 2

Yes, it's the other way around; the correct arrangement and airflow direction is from front to back.

https://toucan-informatique.fr/explication-airflow-ordinateur.html

Damn, I don't know if you saw this in my previous message because I added it afterwards. Otherwise, yes, I had seen some articles about the airflow... like you're showing me.

Or is it done on purpose because they are installed laterally and not at the front (frontal)?

In this video, they talk about the fans...

Hello,

I changed the direction of the fans, but I don't understand why they were installed upside down in new cases to begin with.

Thank you all for your help, flo88, Eric, Epango, fabul, etc.