Alright, so i've had my computer for a good 3 years now. Really sweet Asus g73 laptop, i've always played games on it. It's always runs high graphic games really smoothly. But recently i will be playing a game and then the game will freeze and will repeat the last sound that the game made (if thats happened to u b4 u will know what i mean) and then the computer suddenly turns off, then i hit the power button and it will light up then turn back off and i have to wait about 10 seconds to be able to turn it back on again. I just want to know whats wrong and if its something i can do at home or i should take it to a repair shop. any help will be appreciated.