Chosen Solution
My RAM is fine, but when it gets seated, very little time passes before the System decides I only have GB. Someone told me that I should replace my motherboard. Does this seem to be a probable solution?
So to clarify your RAM socket lock clips are worn or the socket it’s self is distorted. While a new logic board might help lets see if we can save you a few bucks here. Sometimes wedging a piece of a credit card stock between the socket wall and the clip can force it more forward so the edge of the SO-DIMM is captured.To deal with a distorted socket (the logic board has warped due to heat) try loosing the screws a 1/4 turn. Update (12/03/2019) @zalel - Here’s a better view on what’s needed:
