I got the Y730 a few months back and everything was great. Recently I've experienced this problem were the laptop restarts while gaming, even 5 minutes into it. My temperatures stay around 70 degree but it still does this, I'm able to increase the time by turning of the better battery mode but it still restarts. Undervolting, Re-pasting I've tried it all. Is there a problem with the power supply, it not being able to provide enough power?