imac keeps loading and shutting off

My iMac keeps shutting off automatically. When I press the power button, it turns on, the white screen with Apple appears and begins to load for about 3 minutes and then shuts off.

iMac, OS X 10.11

Posted on Sep 25, 2020 11:27 AM

Similar questions

iMac doesn't shut down Hello all, My iMac doesn't shut down correctly. The white timer displays on a black screen & turns indefinitely. Must reset the computer to shut down. But this is inconsistent: half the time, the computer does shut down normally. Safe boot has not fixed the problem. Any suggestions?
703 4
iMac problems I was working on a project and all of a sudden my iMac goes white and restarts with a bong. white screen with an apple and progress bar appears. Progress goes about 50% then restarts. Over and over. I tried resetting nvram. Nothing. any ideas.
372 1
IMac shut down ok, but now will not start up IMac shut down ok yesterday but today will not start up - no sound no screen display - no response from power button
1872 4

1 reply

rkaufmann87

Level 10

148,446 points

Sep 25, 2020 11:37 AM in response to tawny113

Please find the appropriate troubleshooting steps in Startup Screens Troubleshooting Steps.

This thread has been closed by the system or the community team. You may vote for any posts you find helpful, or search the Community for additional answers.

imac keeps loading and shutting off

Welcome to Apple Support Community

A forum where Apple customers help each other with their products. Get started with your Apple Account.

Learn more Sign up