Does the hard drive spin when laptop is asleep?

Discussion in 'MacBook Pro' started by theprizefight, Feb 12, 2008.

  1. theprizefight macrumors member

    Oct 29, 2006
    My friend was arguing that I should turn my MBP off before I take it to class or whatever because the hard drive could be damaged. I countered with the fact that the hard drive does not spin when lid is closed / the MBP is in sleep mode.

    He claims that the hard drive DOES spin when the computer is asleep.

    Who is correct?
  2. JNB macrumors 604


    Oct 7, 2004
    In a Hell predominately of my own making
    In sleep mode, the HDD is parked. In addition, if you have SMS (Sudden Motion Sensor) enabled, it'll prevent HDD damage from, well, sudden motion, like a rapid lifting or tilting of the machine.

    Tell your friend to quit taking cheap drugs.
  3. squeeks macrumors 68040


    Jun 19, 2007
    i think in sleep mode the harddrive is completly powered off

    the drive will park its self when when the system is on if it hasent been used for like a minute
  4. DaLurker macrumors 6502

    Mar 30, 2006
    In sleep the hard drive is off. If you want to test for yourself, put your machine to sleep and the listen. It is completely silent.

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