Mac Mini Mid 2011 820-3059-A = doesn't start, voltages pulse


New member
Not Macbook board related, but some info would be nice if someone knows. I'm a complete noob here.

Problem: doesn't start. 3.42V and 11.89V present. Other voltages pulse when the power button is pushed.

Board is clean and no previous work has been done. Actually, I even managed to start it after pushing power button like 10x and it gave me one beep (RAM wasn't physically installed).

As far as I have researched, there are no leaked documents for Mac Minis?


Staff member
No schematics, nor boardview available.
Try to start in SMC bypass.

"I even managed to start it"
Did you get it fully working?
Check if CPU coils pulse too.


New member
Okay, to start it, just connect a random keyboard, hold combo and power button?
As for the one time that it started, when I heard the beep, I turned it off since nothing was connected to it. It was just bare board.
As for the pulses, I believe pretty much everything pulses, including CPU coils.