I have an Ibook G4 that I have not turned on in a while because of this problem, when I turn it on the screen is black and the cooling fan is running at high speeds. I can not turn the laptop off with the power button, I have a CD in the CD ROM and can not get it out with the eject button, I would like to fix it myself if possible, I have taken it to a apple certified apple repair shop five years ago and the said it would be two hundred U.S dollars.
iBook
Read the URL I posted. Unfortunately Apple's new software has made a mess of the URLs I have archived so they no longer appear as active links in responses unless I spend a few more minutes with each response making them pretty. You will need to highlight them, copy and paste them into your location bar and go to the URL.
From that document:
"Start up in safe mode
To start up in safe mode:
To leave safe mode, restart your Mac without pressing any keys during startup."
About the screens you see when your Mac starts up - https://support.apple.com/HT204156
Use safe mode to isolate issues with your Mac (formerly: Try safe mode if your Mac doesn't finish starting up (formerly: What is Safe Boot, Safe Mode? (Mac OS X))) - http://support.apple.com/HT201262
How do I get in to safe mode?
Ibook g4 not booting up
