My laptop Suddenly turn off and turn on automatically

manij2020 Posts 1 Registration date Monday June 30, 2014 Status Member Last seen June 30, 2014 - Jun 30, 2014 at 12:58 PM
recently i'm dealing with an problem on my laptop (Hp pavilion g6 series). i installed new windows 7 os. my laptop was over heat so i buy an new cooling pad & i'm currently using it. but for the past 4 to 5 days i had an problem what it is.... when i turn on it with in a 10-20 min it turn off suddenly and start with in 5-10sec time with out any splash screen and without dump screen what can i do with it now ? does anyone please help me ?