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Blue Streaks on Monitor - iMac 27" Late 2013

Hi,


In the past few weeks, my iMac has " Blue Streaks" from top to bottom ( pic attached). It use to happen from time to time, but now I can't get to my desktop. Reading other forums it appears that the video card may be toast. Any suggestions on what can be done if anything? I'm resigned to the fact that I will probably need to buy a new comp. Any last minute things I could try? I don't have Apple Care.

iMac 27″, macOS 10.15

Posted on Oct 8, 2021 7:23 AM

Reply
Question marked as Apple recommended

Possibly a GPU failure. However please try restarting in Safe Mode per the directions in Use Safe Mode to isolate issues with your Mac. If that does not help, it is likely a hardware failure and it is time to replace the computer as the GPU is part of the main logic board. The last thing to do though is to post an EtreCheck report and we can look for obvious items that have been installed on the computer.


Please navigate to www.Etrecheck.com and download the free version of EtreCheck. Once you have you downloaded the app and installed it, please run the report and save it. This report will help us get a good idea what has been installed on your system and help us be able to diagnose what may be wrong.


When you have your report, you can attach it when you reply to this message and we can then review it and help you determine what is needed to get your system running well again. 


For instructions on how to download your EtreCheck report and attach it to your reply to this message please click https://discussions.apple.com/docs/DOC-250000211


Posted on Oct 8, 2021 8:10 AM

1 reply
Question marked as Apple recommended

Oct 8, 2021 8:10 AM in response to Supercat1970

Possibly a GPU failure. However please try restarting in Safe Mode per the directions in Use Safe Mode to isolate issues with your Mac. If that does not help, it is likely a hardware failure and it is time to replace the computer as the GPU is part of the main logic board. The last thing to do though is to post an EtreCheck report and we can look for obvious items that have been installed on the computer.


Please navigate to www.Etrecheck.com and download the free version of EtreCheck. Once you have you downloaded the app and installed it, please run the report and save it. This report will help us get a good idea what has been installed on your system and help us be able to diagnose what may be wrong.


When you have your report, you can attach it when you reply to this message and we can then review it and help you determine what is needed to get your system running well again. 


For instructions on how to download your EtreCheck report and attach it to your reply to this message please click https://discussions.apple.com/docs/DOC-250000211


Blue Streaks on Monitor - iMac 27" Late 2013

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