Not bootable after replace superdrive

Discussion in 'MacBook Pro' started by klucy0914, Jan 2, 2011.

  1. klucy0914 macrumors newbie

    Jun 29, 2010
    Happy Holiday, everyone!

    After I replace my super drive with Hitachi 500G 2.5mm HDD, I can not boot except I hold the option key and manually selecting OS X to boot.

    I think if I am able to reset HDD as 1st boot device as HDD like modifing BIOS in windows machine, it might help, how I don't know how.

    Does anyone have same problem and know how to fix it?


  2. Kyffin macrumors 6502

    Sep 5, 2010
    Have you looked at System Preferences>Startup Disk and selecting the disk with the OS on it? Might be worth a look...

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