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Originally released on January 22, 2005, the Mac mini is a small form-factor desktop computer made by Apple Inc. Currently, it is one of the four desktop models in the Macintosh lineup, and serves mainly as an alternative to the all-in-one iMac.

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Power supply output voltages?

What voltages does the internal power supply on the Mac Mini A1347 output? The guide mentions 12 volts, but there are a lot of conductors on that ribbon cable and most computers use voltages in addition to 12.

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I'm working on this same problem myself. So far I've determined that 4 of the wires from the internal power supply are +12V and 5 of them are 0V. I have a suspicion that at least one of the ground wires is a signal wire though.

I'm also trying to find out what kind of connector is used between the power supply and the 2011 Mac Mini A1347 as I'd rather not cut the wire supplied. So far I've noticed that the Mac Mini has a 9 pin header, whereas the power supply has 10 pins, one of which has no wire connected to it. I'm trying to run the computer directly off of DC batteries.

Update: The middle wire is definitely a signal wire. It goes to 2.5V when the Mac Mini is turned on.

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Here's the pinout on it: http://www.blisstonia.com/eolson/notes/k...

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I was wondering on the internal power supply on the A1347. Thanks though.

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albert wu will be eternally grateful.
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