Fan replacement worked fine - graphic card still makes trouble

Mi Problema

The bearing in the fan was stuck, hence the replacement.

Mi Solución

With the guide it was quite easy. Lots of screws but no major problem points.

Mi Consejo

I still don't know what that fan is for: gpu or cpu. After the replacement, the air flow probably is fine, but it seems the gpu got a knack before already, so the replacement is kinda useless.