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1 iMac G5-Ambient- Unstable for Power Up
I have read many questions & answers on Fix It in order to hopefully find a solution to my problem, although my problem may differ slightly. At times the iMac G5 will power up & function normally for 3-5 minutes & then freeze completely forcing me to shut down.It will power up normally at random mostly when it was unplugged for a period of time. Although at times it will chime to a blank Grey Screen or Apple Logo or Wheel or mostly no chime to a Black Screen. There is no overheating. The Capacitors look fine visually, so does the Inverter.
What I noticed 1 time it started up normally was the Time/Date was incorrect therefore I replaced the Pram Battery, no improvements. I could reset the Pram only once, 2 chimes but the screen remained Black afterwards. At times when I remove the cover, I get 3 LEDS on & at times only 2,this iMac resets the SMU automatically when unplugged for 10 seconds. Frustrated, running out of patience & ideas. I do not want to ruin the Hard Drive with all these Start Ups. Any comments & advice will be greatly appreciated, Thanks again, Robert
2.6千 
3条评论
Thanks mayer for your response. The Serial # is W8538xxxxxx,perhaps the next Generation of iMac G5s produced. The Capacitors look as new, no swelling whatsoever or any form of residue visible anywhere.
由 RobertS 完成的
I just spoke with John Rodriguez, some head of customer service or something like that with Apple in California, he mentioned "It should be the Logic Board & there is nothing Apple can do, thanks for calling." I love the comment regarding Apple's policies to not stand behind their products (mayer) you posted previously. Anyone what to start a lawsuit against Apple?, it worked against GM. They went bankrupt for producing a bad gasket on their engines.
由 RobertS 完成的
Here's another class action suit against Apple. These folks would know how to do it: http://www.nvidiasettlement.com
由 mayer 完成的