Are you sure it's not just the keyboard contacts?
The old carbon impregnated rubber contacts can harden and become less conductive as they age. They can also just become dirty and it's not uncommon...
I think you've answered your own question: You were sold a relabeled part. Try rubbing the top with alcohol and see if the original printing comes through.
Zalman made a super chunky copper fin cooler for...
Zalman made a super chunky copper fin cooler for socket 478/754/939/940 called the CNPS7000B-CU
GiGaBiTe Today, 11:21 PMhttps://www.ebay.com/c/1603909614
It's a bit awkward to install, but it has metal retainers that...