[Luke]

It works !

I connected all cables to the respective pins and it works like a charm. So it was a current problem. Still get an orange led for a second after the chime, but then it becomes green again and all goes on well.

Is it normal ? Or can it be cause i didn't connected those signaling pins ? I mean the always on on stby pins +4.9.

Another important aspect, i don't want to cut the original psu connector, should i fix it in the future, so what kind of connector is this ? I tried an half-cutted atx connector but the pin pitch isn't the same...

Do you know ?