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no boot device

  1. S

    imac mid-2011 won't boot from new ssd

    Greetings! Trying to re-purpose an imac (mid 2011 21.5") given to me. I bought the In-line Digital Thermal Sensor and the AdaptaDrive 2.5" to 3.5" Drive Converter Bracket specified by OWC for this model, to replace the hard drive with an SSD (ADATA SU650 480 GB) that I have, that has seen very...
    • sjsu2
    • Thread
    • no boot device
    • Replies: 7
    • Forum: iMac
  2. C

    iMac 2009 doesn't register key combinations and always ends up on windows 'No boot device found'

    Hi there, I have acquired some iMacs from 2009 which have had windows 7 put on them for whatever reason. I'm trying to get macOS back on them but whenever I boot them up (current OS is corrupted btw) I get a blank grey screen followed by the PC style 'No boot device available press enter to...
    • camerong123
    • Thread
    • boot camp grey screen imac 2009 mac not booting no boot device
    • Replies: 3
    • Forum: iMac
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