If the board's out of warranty, it may be time for a new laptop. You can pull your old hardrive out and possibly save your files with a similar system. New laptop motherboards and the installation fee are so high it's often cheaper to start over. You also may have a bad power supply; another reason to buy a brand new one. They're going to be fairly cheap on black friday weekend. Last year walmart had one for $199 if you were willing to stand in line several hours. I waited for a tv.