Here is youtube link
Can't really tell is it gpu or motherboard.
Sound coming bitween gpu and bottom of the case, in video sounds a lot louder then it actaully is.
Yes if i turn fans with my finger they spin freely.
Fans are connected to 3 wire that goes to the gpu socket.
But i tried connecting 2 fans seperatly stright to the socket and no luck.
Yes it have zero rpm but in nvidia setting there is no option for fans.