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  1. #16
    Unable to restart iMac
    dtravis7's Avatar
    Member Since
    Jan 04, 2005
    Location
    Modesto, Ca.
    Posts
    30,104
    Your Mac's Specs
    iMac late 2012 21.5 i5 10:14. iMac 2010 27"QuadI7 OS10.13, MBPLate2011, iPad Pro10.5", iPhone7
    Rep Power
    38
    With so little info this is a shot in the dark but I wonder if his Hard Drive is dying? If he could get to Disk Utility with Command+R held down he could find out.

  2. #17
    Unable to restart iMac
    pigoo3's Avatar
    Member Since
    May 20, 2008
    Location
    U.S.
    Posts
    41,245
    Your Mac's Specs
    2011 17" MBP 2.2ghz, 16gig ram, OS 10.11.6
    Rep Power
    43
    Quote Originally Posted by dtravis7 View Post
    With so little info this is a shot in the dark but I wonder if his Hard Drive is dying?
    I think this is a possibility as well...issue is OP has not supplied us with the exact model 27" iMac they have (we've been asking for this since the beginning of the thread). OP could possibily have a newer 27" iMac with an SSD (not sure yet).

    - Nick
    - Too many "beachballs", read this: Beachballs
    - Computer seems slower than it used to? Read this for some slow computer tips: Speedup
    - Almost full hard drive? Some solutions. Out of Space
    - Apple Battery Info. Battery

  3. #18
    I'm using a wireless keyboard

  4. #19
    Unable to restart iMac
    pigoo3's Avatar
    Member Since
    May 20, 2008
    Location
    U.S.
    Posts
    41,245
    Your Mac's Specs
    2011 17" MBP 2.2ghz, 16gig ram, OS 10.11.6
    Rep Power
    43
    Quote Originally Posted by brianclark4 View Post
    I'm using a wireless keyboard
    I'm going to assume that you've given up on supplying us with exact model info of your 27" iMac...info has been asked for at least 3x in this thread. Of course maybe the problem has been solved....and we weren't updated.

    If the problem is not solved...we may be able to help further if we knew the exact model 27" iMac you have.

    - Nick
    - Too many "beachballs", read this: Beachballs
    - Computer seems slower than it used to? Read this for some slow computer tips: Speedup
    - Almost full hard drive? Some solutions. Out of Space
    - Apple Battery Info. Battery

  5. #20
    Sorry I've not got back as it was my sons wedding at the weekend. My mac model number is: A1312 100. I got this f4rom the info plate on the base of the stand

  6. #21
    Unable to restart iMac
    pigoo3's Avatar
    Member Since
    May 20, 2008
    Location
    U.S.
    Posts
    41,245
    Your Mac's Specs
    2011 17" MBP 2.2ghz, 16gig ram, OS 10.11.6
    Rep Power
    43
    Quote Originally Posted by brianclark4 View Post
    My mac model number is: A1312 100.
    Ok...that does narrow things down a bit...thanks for the extra info.

    This 27" iMac is older than I was expecting...it's either a 2009, 2010, or 2011 model. What this does tell us is...this 27" iMac almost certainly has a "spinner" HD in it (rather than an SSD).

    Given the age & the issues currently being experienced...and what's been tried so far...my guess is the iMac's internal hard drive very likely has "kicked the bucket"...and time for a replacement.

    - Nick
    - Too many "beachballs", read this: Beachballs
    - Computer seems slower than it used to? Read this for some slow computer tips: Speedup
    - Almost full hard drive? Some solutions. Out of Space
    - Apple Battery Info. Battery

  7. #22
    Unable to restart iMac
    pigoo3's Avatar
    Member Since
    May 20, 2008
    Location
    U.S.
    Posts
    41,245
    Your Mac's Specs
    2011 17" MBP 2.2ghz, 16gig ram, OS 10.11.6
    Rep Power
    43
    Here's a 2nd possibility. With the model number "A1312"...the absolute newest model 27" iMac this can be is a mid-2011.

    Earlier we were also told it was running the latest macOS "Mojave". Officially only "Late 2012 & newer" iMac's can run Mojave.

    Thus with this iMac being older than 2012...if it was running Mojave...it was installed via a patcher or a hack...and this install may not have been done correctly or it's unstable. Thus the internal HD may not have died...and the issue is the OS install.

    - Nick
    - Too many "beachballs", read this: Beachballs
    - Computer seems slower than it used to? Read this for some slow computer tips: Speedup
    - Almost full hard drive? Some solutions. Out of Space
    - Apple Battery Info. Battery

  8. #23
    I think its a m2011 model. I had the GPU replaced mid 2017 if that's any help, also I updated the OS from the apple site itself

  9. #24
    Yes the HD is a spinning model, not an SSD

  10. #25
    Unable to restart iMac
    MacInWin's Avatar
    Member Since
    Jan 01, 2009
    Location
    Winchester, VA
    Posts
    6,352
    Your Mac's Specs
    MBP 15" Mid 2015, iPhone XS, an iMac, plus ATVs, AWatch, MacMini
    Rep Power
    26
    So, it's NOT the latest, but probably High Sierra, you have installed. And the most likely issue is the HD is dead. Do you have a backup? If you have either a clone or even Time Machine backup you can see if it will boot from there, which will be confirmation that the most likely culprit is the internal drive.
    Jake

  11. #26
    I will have a time machine backup, but how di I back up if I cant start the Mac

  12. #27
    Unable to restart iMac
    ferrarr's Avatar
    Member Since
    May 21, 2012
    Location
    Pawtucket, RI, US
    Posts
    6,524
    Your Mac's Specs
    L2014 Mac mini macOS 14, iPhone 8+ iOS 12, 12.9" iPad Pro 1 iOS 12, Pencil 1
    Rep Power
    13
    Quote Originally Posted by brianclark4 View Post
    I will have a time machine backup, but how di I back up if I cant start the Mac
    If you already have a Time Machine backup drive, then if you restart your iMac with the TM drive connected, hold down option, you “may” be able to start up from that. If your internal drive is dead, then you will not have that ability.
    -- Bob --
    Please backup. Everything has a life cycle, unexpected and warning free. Nothing will last as long as you want it to.

  13. #28
    Thanks I will give that a try

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