Two days ago my iBook G4 1Ghz started to have a big problem in turning it on: when I pushed the power button the fan started to whirl speedier than usual and nothing happened. The monitor stayed turned off and the startup "Boeing" did not sound.
I tried to reset the PMU and the PRAM several times and the iBook finally turned on (I still don't know why!!). I did a hardware test and no problems were detected.
Then, I connected my connection Ethernet cable and the computer crashed down. Now I am in the same situation that Ive just described: I cant turn the computer on anymore and the fan starts wheeling.
I also showed this problem to a local Apple center and they told me that the motherboard is dead. I am still not convinced, because one time I have been able to restart the iBook.
What do you think? Is the motherboard really broken?
Thank you,
Lap.
I tried to reset the PMU and the PRAM several times and the iBook finally turned on (I still don't know why!!). I did a hardware test and no problems were detected.
Then, I connected my connection Ethernet cable and the computer crashed down. Now I am in the same situation that Ive just described: I cant turn the computer on anymore and the fan starts wheeling.
I also showed this problem to a local Apple center and they told me that the motherboard is dead. I am still not convinced, because one time I have been able to restart the iBook.
What do you think? Is the motherboard really broken?
Thank you,
Lap.