Chosen Solution
When I put the heat sink on only 3 screws went in. The fourth didn’t line up no matter what I tried. Also the RAM chips were tight fit not like my other board. I need to return this board.
Looks like it might have been a heat sink from a slightly different model. We really need to know more about what you are doing, your exact model, if you bought a part where it came from and what part number it is.
