iMac suddenly not turning on!
My 2010 27‘ iMac is not turning on anymore.
It‘s completely dead.
I bought this iMac in a dented housing and transplanted all components into a new one.
I plugged it in and it worked!
Then I plugged my Catalina Patcher Installer stick in.
Halfway through installing the iMac just powered off. I powered it back on. And yes, it did turn back on. But this time it turned back off faster.
The last time I got it to power on it beeped quickly 3 times. No, it was NOT the faulty RAM beep. It sounded more like the broken EFI beep. But I turned it back off too soon to hear the three long beeps.
Then I tried to turn it back on. Nothing. No diagnostic lights 2, 3 and 4.
Only diagnostic light 1 blinks once about every second.
Any clue what this could be?
I think it isn’t the power supply as I already tried a different one.
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