Lenovo 531 Turn on and give light on The “I” but turn off again and turn on by itself. it looks like it is a fan problem. but the fan looks good it start and off with the power. I was expecting the problem is with the Power button & remove it and start it manually. but still the same on and off and on. still i am expecting somthing to do with the power like there is an ice(small board) below the power button connector on the mother board. is it possible that somthing gone wrong with it. please let me know what you think guys. thank you.