Question Sudden Shutdowns and Immediate Reboots

[Francespo]

Problem Description:

Hi everyone, I'm seeking help with an issue I'm experiencing with my PC. The computer shuts down and immediately reboots by itself, without any error messages, usually shortly after the first startup of the day, and always during low-load situations, like idling or browsing.

Problem Timeline:

• Spring/Summer: I noticed the first sudden shutdowns and reboots. I tried resolving the issue by replacing the power supply, but I'm not sure if it was the actual cause.
• Temporary Fix: After trying a few things (unfortunately, I can't remember exactly what), the problem seemed to go away for a while.
• October/November: The issue returned. Learning about the problems related to Intel CPUs, I contacted Intel support and got a replacement CPU.
• Current Situation: Even with the new CPU, the problem persists.

PC Configuration:

• Motherboard: MSI Z790-P Pro WiFi
• CPU: Intel i7-13700KF
• GPU: Nvidia GeForce RTX 4070 Ti
• SSD: Seagate FireCuda 530
• RAM: 2 Patriot Viper Venom 6000MHz DDR5 16GB modules, currently running at 4800MHz because I reset the BIOS settings to avoid interference with troubleshooting.
• PSU: Corsair Rm850X
• Operating System: Windows 11

What I’ve Tried So Far:

• Replaced the power supply in spring.
• Replaced the CPU in November.
• Tested the RAM with Memtest86: no issues found.

Useful Details:

• The shutdowns and reboots don’t happen under load but during low-load situations like idling or browsing.
• There are no error messages or blue screens.
• Here are the event logs of the last week, the crash event is the one ID 41 - Latest7DaysCrashes.evtx

Does anyone have any ideas about what could be causing this? Could it be related to another component (motherboard, power supply, etc.) or a software configuration issue? Could the issue possibly be related to a virus?
If you have other troubleshooting advice, I'll be more than happy to follow them. Thank you very much for any suggestions!

 

[rgd1101]

brand and model of the psu?

 

[Francespo]

brand and model of the psu?

Corsair Rm850X. Sorry, I forgot to mention it, I updated the question too