External HDD ejecting itself

Discussion in 'Mac Basics and Help' started by phone5g, Jan 21, 2016.

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  1. phone5g, Jan 21, 2016

    phone5g macrumors newbie

    Joined:
    Jan 29, 2013
    #1
    I recently upgraded my 2012 MBP hdd to a ssd and bought an external enclosure for the old drive. I plugged it into my usb port and it was fine for about 30 minutes and then it began ejecting itself very frequently. Is this a common problem?
     
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  2. highlystrange, Jan 22, 2016

    highlystrange macrumors member

    highlystrange

    Joined:
    Aug 30, 2015
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    #2
    I have a similar problem: I have several external drives connected to my Mini. When the computer isn't used for a number of hours (overnight), each drive has a message about being ejected improperly. But when I dismiss the message, all is good. I was hoping the answer to your question might shed some light on my situation.
     
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  3. Fishrrman, Jan 22, 2016

    Fishrrman macrumors G5

    Fishrrman

    Joined:
    Feb 20, 2009
    #3
    I've seen that with some enclosures, myself.

    Might be:
    - problem with the enclosure (controller board? controller chip?)
    - problem with the cable
    - conflict between two or more enclosures/controllers (I realize you only have one)
    - something else.
     
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  4. ppenn, Jan 22, 2016

    ppenn macrumors regular

    ppenn

    Joined:
    Oct 22, 2013
    #4
    I'm prone to believe it's an OS issue. this has been happening to me for 3 years and I just gave up because everyone makes the same suggestions and none of them are applicable.
     
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