My Sony Vaio Model: PCG-5B1L laptop is stuck on a black screen and the Fans/HDD does not move. Power Lights are on. The Laptop also has on-board RAM so I can not reseat the RAM. Tried holding Power Button for 20sec with Battery off, did not make a difference. The laptop does RARELY turns on but when it does turn on, it will freeze after a while. It freezes in windows and also in bios even at the vaio sign when you first turn on the laptop. Is there anyway to fix this? Plz help 
