New (used) iMac EMC 2389 help??

Discussion in 'iMac' started by daddyd, Oct 6, 2012.

  1. daddyd macrumors newbie

    Joined:
    Oct 6, 2012
    #1
    Hi, I just bought this iMac from a surplus retailer and I was informed it would be an as-is purchase but maybe yall can help me out?

    I'm really new to apple also so bear with me.

    When I boot the computer, it boots into a Windows XP version with a ctrl-alt-del style login. So I got a copy of snow leopard and I wanted to clear the entire hard disc and re-do everything with only snow leopard being on there, but absolutely none of the startup keys that i've tried have worked, ie. holding C, pressing option after startup, etc. Nothing changes it from booting up the copy of Windows XP. Here's exactly what happens. I press the power button, a solid blank white screen appears for a few seconds, the iMac chimes, and then it boots into Win XP.

    Can anyone give me any advice on how to re-install a different OS?

    Much thanks!
     
  2. daddyd thread starter macrumors newbie

    Joined:
    Oct 6, 2012
    #2
    OK so I found bad news, I held option after the chime and a padlock comes up. So I guess someone has locked it, is there anyway to remove this?

    Thanks
     
  3. justperry macrumors 604

    justperry

    Joined:
    Aug 10, 2007
    Location:
    In the core of a black hole.
    #3
    Open Firmware password is set, this Link might help, Or This One.
    Edit: Try the second link first.

    Or search in google for "bypass firmware password".
     
  4. fastlanephil macrumors 6502a

    fastlanephil

    Joined:
    Nov 17, 2007
  5. ruk110 macrumors regular

    ruk110

    Joined:
    Apr 8, 2010
    Location:
    England
    #5
    try to turn on the mac in target disk mode, connect it to another computer and carry out a full hard drive format and go from there. thats what i did with my other mac mini
     
  6. justperry, Oct 6, 2012
    Last edited: Oct 6, 2012

    justperry macrumors 604

    justperry

    Joined:
    Aug 10, 2007
    Location:
    In the core of a black hole.
    #6
    Lol, you forgot to add a wink, there are also legit ways to get a Mac.

    Hmmm, does that work, isn't the firmware preventing access?
    Edit: It IS, Target Disk Mode Disabled
     
  7. daddyd thread starter macrumors newbie

    Joined:
    Oct 6, 2012
    #7
    I googled around and found an answer. I removed a module of memory and rebooted holding, command + option + p + r, and then let it cycle a few times, then held option after chime and startup option appear. I then shutdown, reinstalled the RAM and started back up and the startup options still work. I tried to boot from DVD but I'm thinking my copy of OSX is only upgrade. But at least firmware password is gone. Thanks for the help!
     
  8. justperry macrumors 604

    justperry

    Joined:
    Aug 10, 2007
    Location:
    In the core of a black hole.
    #8
    Good on ya:)

    I think you need the full install disk.

    Cheers
     

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