I wanted to post this because I had a horrible time finding any information on how to repair. There are a lot of posts on random forums, but the only suggested solution seems to be to just replace the logic board. I didn't think the mini was worth the ~$200 for a new logic board. I can't guarantee all these minis are failing in the same way, but this seems worth a shot considering it will cost you next to nothing if you're handy with a soldering iron. Just locate the capacitor bank on the back side of the board, closest to the power jack. I got a 10uF reading from the good ones so I found replacements from a dead g5 imac board. Fair warning, these are really hard to get off the board. I don't think my iron was hot enough, but I made do. It's ugly, but it gets the job done. Hope this helps someone.
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