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  1. #1
    Mini has no power
    Mid 2010 Mini. No power. Done PMU reset several times. Nothing indicates that it has power. I removed the power supply and measured 11.8V from the first 5 pins of the connector to the logic board. I am hoping that the PS is defective and not the logic board. I remember vaguely reading somewhere that the voltage should be 18V, but I am not that sure.
    1. Is this the correct voltage and should there be additional voltage from the other pins?
    2. The on-board battery measure 2.6V. Could this low voltage cause my "no power" problem?

  2. #2
    Mini has no power
    pigoo3's Avatar
    Member Since
    May 20, 2008
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    40,126
    Your Mac's Specs
    2011 17" MBP 2.2ghz, 16gig ram, OS 10.11.6
    Sorry to hear about the problem. As I'm sure you know...the 2010 Mac-Mini's have an internal power supply...versus the external power brick used on older Mac-Mini's.

    Here's a question posted on iFixit.com which seems to contain a good amount of the info you're looking for. The person answering mentions 5 of the wires have 12 volts...which seems close enough to the 11.8 volts you found:

    https://www.ifixit.com/Answers/View/...utput+voltages

    HTH,

    - Nick
    - Too many "beachballs", read this: Beachballs
    - Computer seems slower than it used to? Read this for some slow computer tips: Speedup
    - Almost full hard drive? Some solutions. Out of Space
    - Apple Battery Info. Battery

  3. #3
    Thanks, that eliminate the power supply.

  4. #4
    Mini has no power
    pigoo3's Avatar
    Member Since
    May 20, 2008
    Location
    U.S.
    Posts
    40,126
    Your Mac's Specs
    2011 17" MBP 2.2ghz, 16gig ram, OS 10.11.6
    Just for the heck of it...have you checked the continuity (ohms test) of the power cable itself? Probably a really really long shot...but worth checking to eliminate it as a possibility.

    - Nick
    - Too many "beachballs", read this: Beachballs
    - Computer seems slower than it used to? Read this for some slow computer tips: Speedup
    - Almost full hard drive? Some solutions. Out of Space
    - Apple Battery Info. Battery

  5. #5
    Yes, the first thing I did.

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