iMac on Life Support

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Joined: Feb 10 2007
Posts: 3

Hi, this is my first post. I hope I am not asking a question that has been answered a dozen times before. My searches didn't find my exact problem

I have an iMac G4 17" 1GHz. It will not boot. When I turn it on, the fan in the top spins, but it does nothing else. Nothing.

A local Mac guru told me it was most likely the power supply. I ordered a new one and installed it today. The good news is that the top fan still spins. The bad news is: That is all it does.

Does anyone have any suggestions? If it is not the power supply, what can it be? I have seen the PAV board mentioned on this site, but I didn't find any details about it.

Any help would be appreciated.

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Offline
Joined: Dec 15 2004
Posts: 122
Try a PMU reset. See Rese

Try a PMU reset.

See Resetting the iMac (Flat Panel) Power Management Unit (PMU)
http://docs.info.apple.com/article.html?artnum=95165

Cheers, Tom

Offline
Joined: Feb 10 2007
Posts: 3
PMU Reset

I tried a PMU reset. I took the bottom off and pressed the little plastic covered button. Is there anything more to it than that?

I also have tried several different key stroke combinations, but nothing happens. It seems that there is nothing going on but the fan turning.

Offline
Joined: Dec 15 2004
Posts: 122
Did you...

Did you follow Apple procedure in the link I provided?

Cheers, Tom

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Joined: Feb 10 2007
Posts: 3
I did follow the procedure in

I did follow the procedure in the link as it was written.