Hopefully this all makes sense.īe sure to let me know how it goes if you are still planning on carrying out your initial plan. I made sure to include the key on the end of the connector for reference. In other words, they are a mirror image of one another. Keep in mind while looking at the diagram that it is drawn from the POV of looking at the CONNECTION SIDE of both the male and female counterparts. Any decent size Lead Acid or Lithium battery you use will simply laugh at that. It has large voltage spikes during that process. The only reason it needs such a big supply is for when it is starting up. If too many break, it will have issues starting up.
#MAC PRO POWER SUPPLY PINOUT MAC#
Browse our website to find the Apple Mac Pro power supply replacement that you have been searching. Also because if one of the smaller wires break, it will probably still work. Mac Parts Depot sells genuine Mac Pro power supplies. There are no repair shops that fix mac power supplies around where I live, there are some which repair PCs supplies.
I was hoping to find a way not to spend that amount of money.
#MAC PRO POWER SUPPLY PINOUT HOW TO#
They chose to use multiple runs of thinner wire instead of two big fat wires which is perfectly acceptable. Ive searched for a way on Google, there are no websites telling how to diagnose or fix the power supply, it always envolves paying US 300 for a replacement part. Probably more like ground loop prevention in some other part of the machine.Īs for why they chose to use a 20pin connector to carry a single voltage… in a word - amperage. Doubtful since I was able to measure voltage potential with the 20pin cable not connected. Meaning… it could be designed to where the power supply has to see that connection or else it’ll shut the computer down. This could be Apple’s way of trying to foul up the not-so-savvy DIY enthusiast trying to convert his/her 2018 Mini to run on straight DC power. This is a little suspicious considering this connection is not made on the 20pin cable that connects the PSU to it. However (as noted in the drawing) the logic board connector shorts the pin marked with an asterisk (*) to 0V or GND. I ran my last Mini (i5 2014) on 13.6VDC because the point was to power it with a LiFEPO4 backup battery. As for the claims that these machines run on a “strict voltage tolerance”, I’m not buying that either. There is no basis to support this information as I have just confirmed for myself. The people claiming the 2018 power supply is outputting multiple voltages have clearly never opened one up and measured it. MacMini2018_DC_Connector.pdfĪs with the 2012 & 2014 models, the logic board needs ~12VDC. I just opened up my 2018 Mini and measured the voltage (not plural) coming from the power supply connector as well as a continuity measurement of the logic board connector.
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