I have an early 2008 MBP that suddenly froze and now won't turn on. It was working fine and I was just surfing the net. It went to screensaver for a bit and when I moved the mouse, it froze. I did not spill any water on it or had any impact damage. So I did a hard restart by holding the power button and then power on. It would chime get to the grey screen and then the screen started flickering for 5 minutes without starting up. So I hard restarted again and this time, it only did the 2 beeps, but no chime. The sleep indicator light stays on steady with no blinks. After like 5 seconds, it does another 2 beeps by itself and it repeats itself until I force shut it down. It doesn't do the chime anymore and the screen stays black. I tried removing the battery and booting, resetting SMC, removed every device that was connected to it, same thing. I pressed the button on the battery compartment and it lit up 4 lights (out of 5). I'm wondering if this could be related to that NVIDIA defect that has plagued this particular model? If they end up replacing the logic board or any other hardware, will they wipe my data, too? Because I haven't backed up recently. Is there any way to back up before I take in my MBP to the Genius Bar?