PowerMac G4 desktop won't power on

Went to turn on my powermac G4 and nothing happened. No Light, no noise, nothing. Could this be a power supply or swithch problem?

You can convert an ATX PSU for use on a G4...
http://atxg4.com/sawtooth.html http://atxg4.com/gige-da.html
http://atxg4.com/quicksilver.html
http://atxg4.com/mdd.html
http://atxg4.com/

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This will transfer/copy music from the iPod to the computer like I said in my first reply.
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Hello brucefl,
I have read your post on how your friend's computer will not power on, and I would be happy to assist you in this matter!
Since the fan spins a little bit with the green light, I recommend following this document on Computer Does Not Start (Windows 7) or for (Windows 8). This resource should help power on your desktop, or specify if there is a hardware defect attributing to the issue.
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The Product and Model Number of your desktop computer.
The version of Windows you have installed on your computer.
If this is an on-going, or recent issue.
If you have added any new hardware or software recently to your computer.
Please re-post with the results of your troubleshooting, as well as the requested information above. I look forward to your reply!
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I work on behalf of HP
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos, Thumbs Up" on the right to say “Thanks” for helping!

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Hi,
You can use the below links to troubleshoot the issue.
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This question was solved.
View Solution.

This page may help, flipping the red voltage switch has worked for many people:
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Hello tizzy,
I have read your post on how your computer is not able to power on, and I would be happy to assist you in this matter! To begin, I will need to ask you a few questions:
Is this an on-going, or recent issue?
Have you added any new software or hardware recently to your desktop?
Is your computer plugged directly into a wall outlet?
In the meantime, I recommend following this document on Computer Does Not Start (Windows Vista). This should help enable your computer to startup once again.
Please re-post with the results of your troubleshooting, as well as the requested information above. I look forward to your reply!
Regards
MechPilot
I work on behalf of HP
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos, Thumbs Up" on the right to say “Thanks” for helping!

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Mirrored Doors G4. When you pressed the power button, the button would light up, but the computer would not turn on. The fans on the power supply wouldn't turn on.
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PowerMac G4 desktop won't power on

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