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#MAC POWERBOOK G4 SCREEN PROBLEM INSTALL#
I have been beating my head against the wall about this but luckily only for about 2 hours today, LOL! I read about this little fakeout prior to today, when I actually decided to try to install on my G4 Silver & 1GB/RAM & an old ass ATI Rage128 w/32mb, yikes!Īt the present, it is at almost one 3rd done. Apple has been accused of attempting to cover up a persistent hardware problem with its PowerBook G4 notebooks, in which screen quality degrades. I have replaced the battery once, the keyboard once, upgraded the ram, and upgraded the os to the highest that can be run on powerpc processors: 10.5.8. Recently, in the middle of a task, my screen will suddenly go entirely black. Hi folks, I have had my powerbook G4 for nearly 8 years and have had almost no problems with it. If youve got an Aluminium Powerbook, (either the last of the G4 models or the new intel mac pro models) they are a great machine (the 15 inch is my favourite) but after a few years the hinge can get loose. For those with 667Mhz PowerBooks (Or possibly other Macs that don't work with LeopardAssist):ġ.) Place the 10.5 Install disk in your drive.Ģ.) Restart your Mac (don't use on the installer on the disk)ģ.) After the chime, hold down COMMAND+OPTION+O+F until you see a light gray screen with black textĤ.) let go of the keys and type in the following commands EXACTLY as shown, and hit the RETURN key after each line (you will see an "ok" confirming what you typed was correct):ĭev 867000000 encode-int " clock-frequency" propertyĭ# 867000000 encode-int " min-clock-frequency" propertyĭ# 867000000 encode-int " max-clock-frequency" property Sadly, the backlight behind the screen has started to burn unevenly with bright spots - whats that all about Any connection with the problem above Alroma Question - Mac G4 Powerbook Screen Goes BlackJul 28 2005, 6:17pm Hi, I have a G4 powerbook, now several years old.