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Detourr Author

Level 1

4 points

Hi there

My imac won't start .... 8 got some vertical bars 9n the screen... won't go past that

Posted on Nov 14, 2021 6:15 AM

Top-ranking reply

rkaufmann87

Level 10

144,838 points

Posted on Nov 14, 2021 8:14 AM

That sounds like a GPU failure. Try restarting in Safe Mode per Use Safe Mode to isolate issues with your Mac and then restart normally. If the problem continues, please take it to your local Apple Authorized Service Provider to be professionally diagnosed.

Also, when posting please let us know the model year and version of Mac OS installed.

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Hi there

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