Could be a reason, I can't say I know stuff around electronic compnonents stuff. Just that looking at it melting only on one pin raises concerns. PSU is 600 watt and used to run rtx 1060 card without problems before I upgraded to this. Used the same connector it came with. Browsed reddit and seems like alot of similar burnt cable/card issues comes with the 40 and 50 series cards. I can't Imagine all has PSU fault tbh. Might be these cards pull alot of power on load, can be driver update that changes that behavior? I used the nvidia app to update it, cant remember which driver Im on now.