Exernal HD always turning on?

Discussion in 'Mac Basics and Help' started by downingp, May 4, 2008.

  1. downingp macrumors 6502a

    Jun 26, 2006
    Should my external HD always just randomly turn on? I understand the HD turning on if I need to access it, but why will the external HD turn on even while browsing the internet?
    I have a 1 TB My Book Premium.

    Thanks for the info.
  2. mreg376 macrumors 65816


    Mar 23, 2008
    Brooklyn, NY
    Are you using it with Time Machine?
  3. downingp thread starter macrumors 6502a

    Jun 26, 2006
    Sorry I forgot to mention that in my original post. Yes I am using it for time machine, but I have time machine turned off. I manually back up using time machine.
  4. DeuceDeuce macrumors 6502a


    Aug 8, 2007
    San Dimas, CA
    Same things happens to me with my 500gb My Book and my iMac. TM is off and every once in awhile my HD just starts doing its thing... :confused:
  5. Vader macrumors 65816


    Oct 11, 2004
    Saint Charles, MO
    I think it is something to do with spotlight or the finder. One of them decides to check that the HD is still there about every 15 minutes. There was a whole thread about this a while ago, here. Nothing conclusive on fixing the issue was found, but the cause was found.

Share This Page