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My iMac won't turn on!!!!

B

bluejay34

macrumors newbie
Original poster
Apr 30, 2007
6
0
My iMac G5 flat panel, which has worked flawlessly since I have had it, won't turn on. :mad: The light on front just flashes. Am I looking at a new logic board or what? Any ideas??
 
I took off the back, made sure the memory was plugged in good. It shows the computer it getting power when plugged in, but it won't turn on. So what exactly do I need to do??
 
bluejay34 said:
I took off the back, made sure the memory was plugged in good. It shows the computer it getting power when plugged in, but it won't turn on. So what exactly do I need to do??
Click to expand...
Hmm if it was anything like my G4 tower, when you press the power button it lights up but nothing else works. If that's the case my fix was to press the PMU reset button on the motherboard. But I wouldn't know where to look for it on an iMac. :eek:
 
I thought about that but there are two little gray buttons right beside each other, not for sure which if either is the PMU reset button. How long should I press it if one of them is the reset? I think I pushed them each, but didn't hold them down.
 
Can you tell us which model it is?

If it's a 2.0GHz 20" iMac G5 (Revision B) you might be covered under the power supply repair program - check here for details.

If you have an older 1.6GHz or 1.8GHz iMac G5 (Revision A) you might be covered under the video and power supply repair program - check here for details.


I had shutdown/power supply issues with my iMac G5 (rev B) and had the logic board and power supply replaced; chances are you might need the same thing. Before you take it back to Apple try resetting the SMU to see if it makes any difference.
 
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