2.0 Ghz iMac G5 randomly shutting down

[sethypoo]

A friend of mine owns a 2.0 Ghz iMac G5, running the latest edition of Tiger. We've found that the computer will randomly shut down, and seems to shut down whenever we visit a webpage that has Flash on it (My Space, YouTube, etc.).

Now, the computer has shut down entirely, and won't restart. When the computer was new, 1.5 years ago, we did install a 1GB stick of Crucial RAM, as well as Virtual PC with Windows XP Professional.

Can anyone tell me why this might be happening? We're at a loss. This weekend I'll be taking out the extra stick of RAM to see if that's the problem.

Help!

 

[WildCowboy]

It's probably the power supply problem that led to the repair extension program for those machines.

 

[cardiac dave]

It's probably the power supply problem that led to the repair extension program for those machines.

I'll 2nd that. Some flash content can cause the processor to spike = increased power draw. Add a faulty power supply to the equation, and you crash.

 

[keysersoze]

This helped me with shutdown and fan issues:

http://docs.info.apple.com/article.html?artnum=301733

 

[sethypoo]

Thank you for your help! My friend called Apple, and is having the computer repaired at a local Apple reseller. Apple is covering the costs.