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Bahamarod Author

Level 1

4 points

Startup screen

My IMac will not complete startup and the screen has an unusual pattern. Has anyone had a similar issue

Posted on Apr 1, 2021 10:09 AM

Top-ranking reply

rkaufmann87

Level 10

143,958 points

Posted on Apr 1, 2021 10:13 AM

It looks like your GPU is failing. However before your take it to your local Apple Authorized Service Provider to be professionally diagnosed please do the following steps as described in If your Mac doesn't start up all the way.

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Startup screen

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