BrBea
Level 1 (0 points)

Q: imac startup issues- green vertical lines changing to grey screen

Help!  I think my 27" i7 iMac just died!

 

Yesterday morning, I had a kernal panic while using Safari.  Restarted, ran disk utility twice.  A bunch of "library shoyuld be r- instead of -rw" type errors that could not be repaired were found both times.

 

After second round of computer restart/disk utility, the computer started displaying green lines running vertically down the grey screen.iMac dying.jpg

 

After around a minute and a half, the screen became grey only, no green lines- no apple logo.

 

I attempted to restart holding down the shift key, I saw the startup/repair process "kick in" (the horizontal repair bar running across the bottom of the screen).

 

Once that was finished, I got about a minute and a half worth of "spinning cursor" and then a pretty blue-lined screen (of death)

IMG_0286.JPG

(NOTE--bright white lights are flash from camera- not on screen)

 

 

I cannot access anything now.  I know that I am running whatever the current version of OS 10.8X is now.

 

I am stuck- anybody got any ideas?

iMac, OS X Mountain Lion (10.8.3)

Posted on Jan 6, 2014 11:16 AM

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BrBea

Q: imac startup issues- green vertical lines changing to grey screen

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  • by baltwo,

    baltwo baltwo Jan 6, 2014 12:13 PM in response to BrBea
    Level 9 (62,256 points)
    Jan 6, 2014 12:13 PM in response to BrBea

    Contact Apple's Support, formerly Apple Express Lane.

  • by BrBea,

    BrBea BrBea Jan 6, 2014 2:49 PM in response to baltwo
    Level 1 (0 points)
    Jan 6, 2014 2:49 PM in response to baltwo

    I have to have my serial number to give them to start the call.  I have no way to access the serial number on the computer because I cannot advance past the grey/blue screen to access it.  Is there a way to get the serial number on this computer off of the hardware itself?

  • by rkaufmann87,

    rkaufmann87 rkaufmann87 Jan 6, 2014 2:56 PM in response to BrBea
    Level 9 (58,184 points)
    Photos for Mac
    Jan 6, 2014 2:56 PM in response to BrBea

    BrBea wrote:

     

    I have to have my serial number to give them to start the call.  I have no way to access the serial number on the computer because I cannot advance past the grey/blue screen to access it.  Is there a way to get the serial number on this computer off of the hardware itself?

    Look on the bottom of the stand, Apple used to print them there I don't know if they still do or not. Also if you have the original box it's printed on that too.

     

    In addition if you click about this Mac and click the version of OS X installed a couple of times the serial number will appear. In addition you can run System Information and get the serial number there too.

     

    Finally it's not going to do much good to call Apple, you need to take the machine in for repair at your local Apple Store or AASP. I suspect your graphics card has failed.

  • by In-Line,

    In-Line In-Line Aug 22, 2016 2:22 PM in response to BrBea
    Level 1 (4 points)
    Desktops
    Aug 22, 2016 2:22 PM in response to BrBea

    It is a video card flaw .....

  • by Old Toad,

    Old Toad Old Toad Aug 22, 2016 2:56 PM in response to BrBea
    Level 10 (140,940 points)
    Photos for Mac
    Aug 22, 2016 2:56 PM in response to BrBea

    It could be a video card issue.  If you have a AMD Radeon HD 6970M video card and the machine was purchased between May, 2011 and October, 2012,  you could be part of this replacement program:  iMac (27-inch): AMD Radeon 6970M Video Card Replacement Program - Apple Support.  It all depends on when you purchased the iMac.

     

    The only way to find out is to make an appointment at your nearest Genius bar for a diagnosis.

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