how about for the next few hours you play you keep f3 up and monitor the ram usage in the top right of the screen and then report what you find. if it ever hits 99 percent then memory is the problem and then while you keep monitoring it just start disableing things untill it stops going up like waypoints and chunkloaders in other dimensions and things like that.Well. Looks like I spoke too soon. Just crashed while changing the sound on the game. -_-