I bought my 15R laptop 3/29/2013. A few months later it wouldn't turn on after sometimes 50 or more attempts. It would try, but then shut down. Almost like trying to start a car that's out of gas. It was turning over, but no go. I never got around to doing anything about it until a few weeks ago. A Dell tech tried multiple ties to service it online, with-out success. Finally they gave in and sent me a box to return it to them for warranty service. It was just retuned to me after 2 weeks. They replaced free of charge under warranty the main mother board. My warranty is about to expire next week on 3/29. Just in time. Back up all your files because everything will be wiped out. Good luck!