I have the older, original macbook from 2006. Had it running with OS 10.6.8. It will no longer power on at all. The battery light still shows green when I plug it in and the battery was recently replaced. Leading up to this, my macbook would just randomly restart itself. Sometimes it would be able to reboot, other times it would get stuck at the chime and just continue to attempt to reboot itself. Now, I can't get it to turn on at all. I already followed all of the troubleshooting steps that I could find including resetting the SMC. Any ideas? Thank you!