Released in 2003, the iBook G4 replaced the iBook G3 as Apple's portable consumer computer.

707 Questions View all

system locks up after power up.

unit only works on main power. After a short period horizontal lines appear across the bottom end of the screen and the system locks up.

Answered! View the answer I have this problem too

Is this a good question?

Score 0
Add a comment

1 Answer

Chosen Solution

Try the quick fixes I recommended on this will not start up from HD or CD.

Was this answer helpful?

Score 3

Comments:

Could the system have fried. The fan is not running.

by

Also the system does not work on battery power

by

As I told the Poster on the question i forwarded to you. If none of the software and hardware fixes rememdy the situation, the it's most likely a bad logic board. This particular machine had many logic board failures

by

+ very nice link

by

Good answer +

by

Add a comment

Add your answer

Aston Ffrench will be eternally grateful.
View Statistics:

Past 24 Hours: 0

Past 7 Days: 0

Past 30 Days: 0

All Time: 520