thermal paste on CPU pins

(sorry for bad photos couldn't get it to focus) there is a small patch of pins that have some thermal paste at the end of the pins, would this cause the issue seen in photos where bios has a weird yellow tint applied. It's the same with different gpus and fixed when I put in an old 3600, couldn't see any bent pins on the 5700x. Also what would be the best way to clean it off