|Sorry, not sure if you are making statements or asking questions.|
Reboot means restart (power off then on again). I wonder if you mean that or some sort of restore.
Have you tried cleaning the RAM edge connectors with a pencil eraser? That is not an uncommon reason for RAM apparently failing. I then ususally pop the sticks in and out a few times to ensure there is no oxide on the edge connectors.
Always pop back and let us know the outcome - thanks