Sudden PC Shutdowns - HWInfo Logs Analysis Help Needed

[divi]

Hello everybody,

I'm experiencing an issue where my PC suddenly turns off (suddent power off without any warning) and then turns on on its own. This happens randomly under normal load (browsing), and I’m trying to diagnose the cause. I logged system data using HWInfo. I see some spikes in 12V data, but really don't understand it fully.

System Details:
CPU:intel i5-12400F
GPU: FRONTECH GT 610 2 GB DDR3
PSU: Cooler Master MWE 550 Bronze V2 Power Supply - Non-Modular
Motherboard: ASUS Prime H610M-E D4
RAM: G.SKILL Ripjaws V 8GB (2 * 8GB) DDR4 3200 MHz CL16-18-18-38 1.35V
OS: Windows 10 IoT Enterprise LTSC

I build this new PC 5-6 months back.

Query:
Could someone help me analyse these logs to see if there is a way to understand the cause?

If this is insufficient, please let me know what else I should monitor to diagnose the problem better?
Could it be related to motherboard or PSU?
Any suggestions for additional stress tests or troubleshooting steps?

I'm attaching the HWInfo logs.

Thanks in advance for your help!

 

[VictorVG]

divi​

Take a voltmeter/multimeter and manually measure the voltage on the plates, especially +12V - in the log it looks strange - "12" and does not change. And this is impossible in a working scheme, such a value can be explained only by the fact that this EC controller sensor on the board is not connected and the plug in the System.efi module transmits a fixed number of "12" monitoring programs.