Responder a: My PowerBook makes a clicking sound but it won't turn on, why?Solution. I tried everything I could to get the disc out to no avail. I finally disassembled the optical drive and physically removed the disc but when I put it all back together it wouldn't let me put another one in, the drive was still thinking a disc was in because the mechanism was blocking the opening. I ended up purchasing a new logic board. Got one for $90 online (refurb). It took about an hour to install but that finally fixed it. The laptop is now booting once again into the OS and everything looks good. Hallelujah! Thank you for all your help.
Responder a: My PowerBook makes a clicking sound but it won't turn on, why?What was the solution? I have the same problem with my mothers powerbook g4. I turn it on, hear the chime and then the clicking, which I believe is the optical drive initializing, and then it just keeps repeating the clicking like it is stuck in a loop. The display is black the entire time. I pulled the hard drive and was able to access it externally through another mac so I know it isn't that. My thought is that it's the logic board but I don't want to replace it if that's not it.