HP desktop sudden freeze/black screen and self-restart

[ssj0]

Hello, I have a destop that recently experiences random sympton of the following:

sudden freeze/sudden black screen and restart by itself

The former I have to force shut down and start the PC again. The sympton happens randomly without any specific sign, very often it does that while PC is on idle/lock.

Did anyone have similar issues? I had the same issue about a year ago for quite a few weeks and it just disappeared later. Is it the PSU issue? All I have done to the desktop after I bought it was adding another 12TB HDD to it.

I haven't seen much in system log, mostly just this: The system has rebooted without cleanly shutting down first. This error could be caused if the system stopped responding, crashed, or lost power unexpectedly. kernal-power. event id 41. Ran memory/disk check and everything is okay.

Any comments/suggstions are appreciated. 

[Bill_To]

Greetings @ssj0 

Welcome to the HP Forum.

A Windows PC shutdown and restart sequence could be: a hardware problem including a flaky power supply, a system file problem, or a hardware driver problem.

Set Windows to Bluescreen:

Enter Advanced System Properties in search. Select the result.

Select Settings in Startup and Recovery which is located in the Advanced tab.

Uncheck automatically restart and click okay. Click okay again.

The PC should blue screen the next time it does a restart. Recent Windows versions may now show a black screen instead of a bluescreen.

Get back to the Forum with any possible bluescreen error codes you see.

A bluescreen error code might help to figure out what's happening when your PC restarts.

The 12TB HDD could be an item of interest among many other possibilities. You could temporarily disconnect power to this drive to check the PC's stability as one of the future troubleshooting steps you may have to do.

Regards