Q: IMac2011 27" grey screen with grey verticals on startup, moves halfway thro process then restarts and stays on grey screen. Cannot ... IMac2011 27" grey screen with grey verticals on startup, moves halfway thro process then restarts and stays on grey screen. Cannot start with safe mode or utilities as far as I can see. Ideas? more
-
All replies
-
Helpful answers
-
Jan 5, 2015 11:19 AM in response to KPOriginalby Old Toad,Check to see if you iMac is part of this graphic card recall: iMac (27-inch): AMD Radeon 6970M Video Card Replacement Program - Apple Support
If it is and is within the 4 year time limitation make an appointment immediately at the nearest Apple Store Genius bar to get it looked at. I have similar issues (but could boot and work) and they replaced the card for free.
-
Jan 5, 2015 11:38 AM in response to Old Toadby KPOriginal,TThanks. How can I check this without access to the computer?
-
Jan 5, 2015 1:09 PM in response to KPOriginalby Old Toad,Do you have any of the purchase paperwork that came with your iMac. It might have some of the info on it, i.e. the CPU type and
First see if you can Boot into Safe Mode, Mac OS X: Starting up in Safe Mode. If you can you can access the About This Mac menu option and the System Report from there to see if you have the recalled graphic card.
If that fails see if you can Boot into the Recovery volume (boot with the Command + R keys held down) and access the About this Mac info from there.
Or look on the iMac for the serial number and compare to this info:
t
he iMacs must fall in the following serial number configurations:
The last four characters of the serial number must contain one of the following groups (for example, xxxxxxxxDHJQ):
-
DHJQ, DHJW, DL8Q, DNGH, DNJ9, or DMW8
-
DPM1, DPM2, DPNV, DNY0, DRVP, DY6F, F610
If the iMac falls within one of the above the serial number categories and is confirmed to have the graphics card issues, Apple will replace the AMD card free of charge up to three years from the computer’s purchase date
This is from this website: Apple opens graphics card replacement program for some ...
-