Hello everyone, I just found a 2006 MacBook, ready to be thrown away. It is in very bad shape: the plastic is really scratched, the top case has cracks everywhere and they hastily removed the hard drive, so all the screws from step 5 to step 10 of the ifixit guide (even the ones not circled) are missing. The battery is completely dead. The only good points are the screen that looks good and the power adapter is new. When I connect the power adapter, it is orange for a few seconds then green, but nothing happens when I press the power button. I disassembled and cleaned it but nothing happens: no sound, the fans don't spin. I checked the voltage on the motherboard and it is correct, so it's not a Magsafe connector problem. I believe the motherboard is dead, and I found used one (but working) on ebay for $25, do you think it's worth it? Also is it possible for a MacBook to power on without a hard disk, or is there some combination keys that I can try? Thanks.