Flashing folder ? but HD is fine

Discussion in 'iMac' started by robcrouch, Aug 8, 2016.

  1. robcrouch macrumors member


    Jul 8, 2015
    Hey All, I have a strange boot problem with a 2008 iMac.

    I get a flashing folder icon but i have just installed my SSD (with OS X pre installed) it works fine in any other mac (my macbook, another iMac)

    I even managed to get it to boot the first time I turned it on (it loaded up to log in screen) but for some reason now I get the flashing question mark folder icon....

    when I take the drive out and use on another mac t boots fine.

    I also have a second HD 2.5 sata drive with a copy of OS X installed and it does the same with that (this also works with other macs)

    anyone know whats going on? at present i only have bluetooth keyboard so cannot connect it to try alternate booting methods.

  2. simonsi macrumors 601


    Jan 3, 2014
    As two drives do it (and assuming one wasn't made a clone of the other), then it points perhaps to a drive cable or interface problem on the iMac. If you put either drive in an external USB enclosure can you option-boot from there?
  3. robcrouch thread starter macrumors member


    Jul 8, 2015
    I was thinking similar.... I am suspecting a faulty Sata cable connection perhaps.

    I havnt been able to rest the drives in an external USB as I have only wireless keyboards that are not paired with the machine. (I have ordered a wired one on eBay) but meanwhile any other suggestions are welcomed....
  4. AppleNewton macrumors 68000


    Apr 3, 2007
    1 Finite Place
    is the version of OS X compatible? you may need to try and reset PRAM; command option p r
    and see if that works.
  5. maflynn Moderator


    Staff Member

    May 3, 2009
    Odds are that the preinstalled OS X version is not compatible with your 2008 iMac. What version of OS X is it?

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