Series X powered off unexpectedly

Hello Nik F, my name is Oskayra, and I will be happy to help you.

Beforehand, it is important that you keep in mind that this is a public community forum, so we are players like you, we are not employees of Microsoft or Xbox, so we do not have access to any user account or check anything from the forum. All users help each other with common problems.

I'm very sorry for the problem you're going through. I was researching Xbox Support and found this article (https://support.xbox.com/help/hardware-network/console/console-turns-off-unexpectedly)">https://support.xbox.com/help/hardware-network/console/console-turns-off-unexpectedly) where it shows that The solution to the problem can be solved by following these steps:

"Turn on the console.

Press the Xbox  button on your controller to open the guide.

Select Profile & system > Settings > General > Power options.

Under Options, select Shut down after and select Don't turn off automatically.

method 2:

Console shutdown can sometimes occur due to system corruption, requiring the console to be reset to factory defaults. For information on how to reset your console operating system, go to:

https://support.xbox.com/help/hardware-network/console/reset-console-to-factory-defaults

Important System corruption can sometimes extend to external storage devices, so disconnect any external storage (such as external hard drives) before performing a system reset and leave such devices disconnected until you can verify if the problem persists after the reset ".

Information Source (Credits): https://support.xbox.com/help/hardware-network/console/console-turns-off-unexpectedly

Thank you for your patience, I hope everything can be resolved. I will be attentive to your response. Blessings.

Sincerely,
Oskayra.

Thank you for your help! I have done everything else on the list short of a system factory restore, but I will give that a try next, and will post results

If games have a catastrophic crash the system will shut itself off to prevent data corruption

Titles such as COD and NBa are often cited, though that may be due to their popularity.

Have you verified the fan is operating?

Hi! My name is Pam. I'm an Independent Advisor and I'll be glad to help you today.

I'm sorry to hear that. Here are the steps that you can try for your concern.

Solution 1. Power cycle your console

Please Turn off console > (press and hold power button for 10 seconds) unplug everything from the console > wait for 2 minutes and plug everything back > Turn On the console.

Solution 2. On your Xbox, please go to Settings - tv and display options - set the resolution to 1080 - under Advanced to the right click on video modes - uncheck Allow 4K and HDR10. Then restart your console and launch the game.

Solution 3. Clear your local save games file.

Make sure that there’s no disc in the disc tray.

Scroll left on the Home screen to open the Guide.

Select Settings > All Settings

Choose System > Storage.

Now select Clear local saved games.

Choose Yes to confirm.

Restart your console

Solution 4. Try to do a soft factory reset without removing any games and apps.

Press the Xbox button to open the guide.

Select Settings > System > Console info > reset then keep my games and apps.

NOTE: This will delete the profiles on your account, make sure that you remember the email and password to your account.

I hope this helps. Feel free to ask back any questions and keep me posted.

This may be helpful:
support.xbox.com/.../console-turns-off-unexpectedly