How long has my computer been running?

Discussion in 'Mac OS X Lion (10.7)' started by George Jetson, May 23, 2012.

  1. George Jetson macrumors newbie

    Nov 21, 2010
    Is there any way to see how many hours an iMac has been awake and running since it was built?
  2. Intell macrumors P6


    Jan 24, 2010
    Download SmartReporter and copy its folder to the Applications folder. Then run this in the Terminal:
    /Applications/SMARTReporter/ /dev/disk0 -a
    The Terminal will then print out lots of stuff. Under the "Vendor Specific SMART Attributes with Thresholds:" heading look for "Power_On_Hours".
    In the Raw_Value column for this attribute will be how long the hard drive has been on in hours. If the iMac has the original hard drive, that'll be how long the iMac has been on.
  3. George Jetson thread starter macrumors newbie

    Nov 21, 2010
    Yes! Works great. Just what I needed and more. Thanks.

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