I wanted to do everything clean, possibly just once, so I ordered the 24v upconverter, bought the resistors, and put my hands on everything only today when I had all the components ready. Take it as a cautionary tale on the importance of fact checking. Now, I just need to share this with someone. Took me a while to find some spare time to devote to this project. If someone can confirm, or correct my guesses, please any help would be very welcome. I'm used to scenarios where +, - and GND are three distinct things, that's why I'm so confused. But I've learn not to connect anything basing on a guess. My guess is what dremeljunkie calls 'ground' is what I call '-' and what he calls 'line' is what I call '+'. I guess this is more a language barrier than a truly electrical problem (I'm Italian), nonetheless it leaves me scratching my head: Now the question is: how do I make sure I don't fry everything? Even If finding the inverter cable made everything clearer, I still wonder how do I connect the + and - of my power supplies? I do I make sure that I'm not inverting polarity and making a mess? On the inverter black cable, I separated the green and black (->ground) from the blue and red (->24v) from the orange and purple (->nowhere) You can see the 18 pin on the HDMI is still empty, i need the resistor I connected the pins I could connect from the monitor grey cable, and twisted together the blue, green and grey (which go to ground) and the orange, yellow and purple (which go to 12v). I already connected the pins from the black monitor black cable The solution was about as simple and cheap as you can get.Building a CustoMac Hackintosh: Buyer's Guide I wanted to know why it become loose, and how could it be fixed! I also did not want to buy a new motherboard or power supply. The only solutions that I found on the Internet were about replacing the motherboard, replacing the power supply, taking it to the Genius Bar, etc.īut I wanted to understand what the failure mode of this looseness was. Apparently some of the Time Capsule units have this power supply and the problem of loose power connector cables too, but I was not able to verify that. You can see in the second picture how the connector would sort of bend down and fall out.Ī search of the Internet revealed that there are a lot of people who have this same problem, even with brand new Mac Minis and Mac Mini Servers.

When you plug the power connector into the back of the Mac Mini, it would angle down and not grab on tight to the inner connector contacts.

Upon closer inspection, the cause was that the power cable's connection into the power jack on the back of the Mac Mini had become very sloppy and loose, and would fall out of the Mac Mini was disturbed in any way. Our little Mac Mini started turning off whenever we would move it or bump it at all.

2012 mac mini power supply pinout