I was looking for a project, so I bought an early 2008 MBP on eBay; the seller said the Genius bar told him the reason it wasn't turning on was the MagSafe board. When I tested the computer, the light on the adapter was amber, the battery never lit up, and the computer didn't power on. I replaced the board, and the battery charged and the light on the adapter is green, but the computer still won't start. I tried resetting SMC, removing and re-inserting the RAM (in all combinations), and I even removed and replugged the PRAM battery, to no avail. I'm guessing this is the nVidia issue? I just want to make sure before I preheat the oven. Thanks, everyone!