Completely dead iMac, black screen, power supply seems to be working?
Late 2009 imac 27’’
I had the imac on a power strip for a few weeks that I would turn off regularly after a proper shut down (I now know that was bad). Suddenly one morning, nothing happens when the power button is pressed. No fans, lights, or anything. There are zero LED lights on the logic board.
I tried various iterations of turning it on and off, replacing the power cord, and removing and replacing the ram. Im getting up to 12v output on the power supply and I can sometimes here it buzz. I tried a “new” ebay power supply and that didnt help the issue.
I am not sure if both power supplies are bad, if there is something wrong with the logic board itself, or would the pram battery need to be replaced?
Это хороший вопрос?