Results 1 to 4 of 4
  1. #1


    Member Since
    Nov 20, 2011
    Posts
    9
    27" iMac freezing
    I have a 27inch intel imac.
    It's started to crash and freeze up regularly.
    When it freezes I cannot even access FORCE QUIT
    When I run fsck it says "FILE SYSTEM WAS MODIFIED"
    When I enter "exit" to restart it says, "Removed 5 orphaned files, unlinked file, Jettisoning Kernal Linker"
    It restarts but doesn't take long to freeze again.
    Could anyone explain what this means?
    Can I repair this?
    Is this a software or hardware problem?
    Any advice?
    I haven't backed up (I know)

    I might experience difficulty answering as it could freeze up any moment.

  2. #2

    chscag's Avatar
    Member Since
    Jan 23, 2008
    Location
    Keller, Texas
    Posts
    49,430
    Specs:
    Late 2013 27" iMac, iPad 3, iPhone 6s+, iPhone 6+, 3 iPods, Sierra
    The freezing may be the sign of a failing hard drive. The first thing you should do is backup all your data. Use Time Machine.

    After your data is backed up, boot the machine with your install DVD and run Disk Utility from the DVD. Do a verify and repair on the hard drive. Let us know the results. And lastly, is your iMac still covered by Apple care?

  3. #3


    Member Since
    Nov 20, 2011
    Posts
    9
    Thank you chscaq for responding.

    I bought one of the first batch of 27" intel imacs and in the last month of my 3 year Apple warrenty it packed up and a new hard drive was fitted. Judging from the dates of software installation this would in September 29 2009, so this hard drive is just over two years old, the imac 5 years old.

    I've just run disc utility verify and it says it appears OK. This might be because it hasn't been long since I last had to run fsck and the file system was modified, orphaned files removed, Kernal Linker jettisoned and so on.

    I haven't backed up yet. I intend to buy a backup hard drive tomorrow. (Any recommendation for an inexpensive fast hard drive to work with Time machine?).

    The pattern seems to be as before. It works for a period if I keep things simple, freezes, I run fsck and it says "The volume Macintosh HD was repaired succesfully" and it gets modified and as I restart and there's info about GFXO Family Specific Matching Fails. Some time later it freezes again.

    More warnings

    (1). Twice now a grey mist has descended down from the top of the screen which freezes and an error box in several languages states, "You need to restart your computer. Hold down power button ... etc"."

    (2) Earlier today I left the screen for a time. When I returned the screen had frozen and turned black with white text which repeated a line of text across the whole width , " Nov21 14:38:42 apples - imac/system/library/CoreServices/loginwindow.app ..."

    (3). I backed up some files to a CD. When I tried to back up to a double density DVD (8.5 meg DVD+R DL) it said "This disc can't be burned because the device failed to calibrate the laser power level for this media". However i have succesfully copied to one of these DVDs before. Is this connected?

    HELP! Can I do anything?Could this be a virus? Do I have to call in the undertakers?

  4. #4

    chscag's Avatar
    Member Since
    Jan 23, 2008
    Location
    Keller, Texas
    Posts
    49,430
    Specs:
    Late 2013 27" iMac, iPad 3, iPhone 6s+, iPhone 6+, 3 iPods, Sierra
    No virus, just a tell tale sign of a failing hard drive - getting worse by the hour.

    As I advised before, backup before you lose everything. Any good external hard drive will be OK. Current prices on hard drives are skyrocketing because of the recent Typhoon flooding in Thailand so don't delay.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. 24" imac freezing on gray startup screen
    By bill19 in forum Apple Desktops
    Replies: 7
    Last Post: 10-11-2012, 04:03 PM
  2. iMac 24" Freezing on boot from USB
    By KevGibs in forum Apple Desktops
    Replies: 2
    Last Post: 02-29-2012, 08:57 PM
  3. Early 2006 20" iMac: Freezing During Use
    By geekboy2000 in forum OS X - Operating System
    Replies: 16
    Last Post: 02-15-2009, 07:01 AM
  4. iMac 20" keeps freezing!
    By inkjs in forum Switcher Hangout
    Replies: 29
    Last Post: 08-21-2006, 08:24 PM
  5. 800Mhz 17" G4 iMac keeps freezing.
    By macgeek2005 in forum Apple Desktops
    Replies: 2
    Last Post: 06-30-2006, 10:24 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •