So I changed the passive cooler to an active one and the card isn't recognized by the motherboard anymore. I get a long beep followed by three short ones. The card worked with the passive rad.
Tried using a second card in the same slot and it works perfectly.
Did I somehow electrocute the card with static or maybe I rubbed the GPU chip too hard while cleaning it?
Anything else I could try? Tried removing the new cooler but that didn't change anything.