So I have an Alienware alpha r2 and it’s a round 1.3 year so old. Whenever I try to play games for a while it sometimes randomly just shuts off. It’s like the cord from the wall has been pulled. It’s always after some big gaming session and it’s really annoying. The warranty is expired I I don’t know what to do. I even bought a laptop cooling pad for it to sit on and a small desk fan to blow air away from the fan ports. PLEASE HELP!