PRAM Not Clearing

Discussion in 'macOS' started by legaleye3000, Dec 8, 2007.

  1. legaleye3000 macrumors 65816

    Jul 31, 2007
    Right when the computer turns on, as fast as humanly possible, I am holding down: command-option-p-r and it just keeps on booting... I'm running latest generation Macbook Pro.

    Someone help. Thanks!

    (Also, is holding down "d" the hardware diagnostic key as long as you have your restore cd in?)
  2. mad jew Moderator emeritus

    mad jew

    Apr 3, 2004
    Adelaide, Australia

    Is your volume muted? Do you have any speakers or headphones plugged in?

    Yep. :)
  3. legaleye3000 thread starter macrumors 65816

    Jul 31, 2007
    Figured it out !

    I have the firmware password set to "on" so if you have that on holding down ANY keys (except for option to go to Bootcamp/Windows) WILL NOT WORK!

    I turned it off and then it worked fine.
  4. resqguy77 macrumors newbie

    Oct 13, 2008
    firmware password?

    Where do you go, what menu, to turn the firmware password off ?? I think I'm having the same problem.
  5. hiddenpremise macrumors regular


    Jul 25, 2008
    Somewhere between my imagination and reality
    Firmware password utility is located on any os x install disk.

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