How Do I Stop My Imac From Restarting Constantly?

My iMac (2020) has been randomly restarting, and I suspect it might be related to the T2 security chip. What troubleshooting steps can I follow to confirm this and possibly fix the problem?

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Answer #1: Posted by Darla101 on October 26th, 2023 1:09 AM

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If your iMac (2020) is randomly restarting and you suspect it might be related to the T2 security chip, here are some steps you can follow to troubleshoot this problem:

Restart your Mac properly: an unexpected shutdown is not the same as a proper one. Correctly powering off your Mac, from the Apple menu, allows all the process and programs running in the background to close safely, reducing the risk of issues.

Force Quit unresponsive applications: press cmd+alt+esc and force quit any unresponsive applications. This can help if an application is causing your Mac to restart.

Reset the System Management Controller (SMC): To reset the SMC on a desktop MAC with a T2 chip such as an iMac Pro:

Shut down your Mac.

Hold down the power button for 10 seconds.

Release the power button, wait a few seconds, then restart the computer.

Reset NVRAM or PRAM: You can also try resetting NVRAM or PRAM on your Mac.

Check peripheral devices: problems with peripheral devices can cause your Mac to restart. If you've recently connected a new device to your Mac, try disconnecting it to see if that solves the problem.

Check for faulty software: some apps may cause problems and push your Mac into a reboot circle. If you've already installed new software or updates, try installing them to see if that resolves the issues.

Check for hardware issues: if none of the above steps work, you may have a hardware issue such as defective logic board. In this case, you should contact Apple support or take your iMac to an Apple store for further assistance.

Remember, it's always a good idea to back up your data before performing any of these steps.