My good ones actually look like your "bad" one. Did you mix up the images?
What I also see on your pictures as difference is the little "hole" in the leftmost cooling fin on the lower image that seem to not exist on the other one.
Might that be a more clear difference?
What I also see on your pictures as difference is the little "hole" in the leftmost cooling fin on the lower image that seem to not exist on the other one.
Might that be a more clear difference?