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  1. #1
    Powered USB Hub turning off/losing power?

    Member Since
    Sep 06, 2008
    Posts
    847
    Your Mac's Specs
    13" MBP - 2.7 Ghz, Intel Core i7, 8GB RAM.
    Rep Power
    12
    Powered USB Hub turning off/losing power?
    I have this powered USB hub going into my iMac with only 3 external drives connected to it. The hub seems to be losing power and turning off at random times - why would this be if itís powered?

  2. #2
    Powered USB Hub turning off/losing power?
    ferrarr's Avatar
    Member Since
    May 21, 2012
    Location
    Pawtucket, RI, U.S.A.
    Posts
    7,849
    Your Mac's Specs
    L2014 Mac mini macOS 15, iPhone 11 iOS 13, 1st Gen 12.9" iPad Pro iPadOS 13
    Rep Power
    16
    What is the power cord plugged into? Also, it could be a loose cord connection, either at the plug end, or the input into the hub.

    When this happens, do all the drives become disconnected?
    Please backup. Everything has a life cycle, unexpected and warning free. Nothing will last as long as you want it to.
    PS: When there is an accident or error, is the tool to blame or is the fool to blame?

  3. #3
    Powered USB Hub turning off/losing power?

    Member Since
    Sep 06, 2008
    Posts
    847
    Your Mac's Specs
    13" MBP - 2.7 Ghz, Intel Core i7, 8GB RAM.
    Rep Power
    12
    It’s plugged into a power strip (perhaps needs its own socket?).
    When it happens, all drives get disconnected.

  4. #4
    Powered USB Hub turning off/losing power?
    jasongoldworthy's Avatar
    Member Since
    Aug 28, 2017
    Location
    Wales, UK
    Posts
    307
    Your Mac's Specs
    iMac 27" 32GB i7 2TB OSX 10.15.5 late 2013
    Rep Power
    3
    the problem here could be that the drives are drawing too much current what's the rating of the USB hub ?

    and is it while accessing one drive or two or three at the same time ?
    iMac Late 2013 27"
    Intel Core i7 4771 32GB Ram
    2TB HDD
    OSX 10.15.5

  5. #5
    Powered USB Hub turning off/losing power?
    ferrarr's Avatar
    Member Since
    May 21, 2012
    Location
    Pawtucket, RI, U.S.A.
    Posts
    7,849
    Your Mac's Specs
    L2014 Mac mini macOS 15, iPhone 11 iOS 13, 1st Gen 12.9" iPad Pro iPadOS 13
    Rep Power
    16
    Some green (smart) power strips have outlets that turn off power to them, if devices go into standby mode.
    Please backup. Everything has a life cycle, unexpected and warning free. Nothing will last as long as you want it to.
    PS: When there is an accident or error, is the tool to blame or is the fool to blame?

  6. #6
    Powered USB Hub turning off/losing power?
    jasongoldworthy's Avatar
    Member Since
    Aug 28, 2017
    Location
    Wales, UK
    Posts
    307
    Your Mac's Specs
    iMac 27" 32GB i7 2TB OSX 10.15.5 late 2013
    Rep Power
    3
    now see Ferrarr I didn't think of that lol,

    im glad one of us on the ball.
    iMac Late 2013 27"
    Intel Core i7 4771 32GB Ram
    2TB HDD
    OSX 10.15.5

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