I was thinking to buy Asus K556UR laptop. I'm a student so i need it for educational purposes. But i also like to play games and K556UR has 8GB of RAM, so i was thinking that maybe I'll install an additional 8GB of ram.... Is it possible that it can be upgraded to 16GB ram .. if yes, can u please recommend me which memory should i use.... And if no, then can u please tell how much max could it be upgraded. Thank you