Windows 10: PC random reboot without BSOD

Hello Microsoft Community,my PC started randomly rebooting without any Bluescreen. It happens randomly and i cant recognize any pattern. Just a Black screen and suddenly rebooting.My specs are:Ryzen 5 7500FMSI GTX 1660TiMsi B 650 Gaming Plus Wifi32 GB Patriot Viper DDR5-60002TB Kioxia Exceria Plus M.2Deepcol PN750MI hope you can help me with this issue.Regards, Kadir

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PC reboots (no BSOD) on CPU stress

Hi fellow TPU members,

not too long ago, the box my gf's PC was transported in gave way on the stairs. Yes, you got it right, that sent a PC tumbling down a flight of steps alright.

Stuff broke. Also, stuff remained intact somehow.

I bought her a new case, new CPU cooler and we removed the floppy drive, so far so good. But the PC started crashing for no apparent reason, without a BSOD.

I tested:

• Memtest86+, left overnight, 0 errors
• Scanned the HDD for errors, nothing there
• Left FurMark burning up the GFX card and drawing some power, no problems there
• Ran Ubuntu from a Live CD doing nothing special, didn't crash
• Ran OCCT, Linpack, Prime95, all 3 caused reboots within minutes
• Oh, and I disabled "Restart on error" so I'm sure it's not a BSOD.

Now, I can still try and test something CPU intensive on Ubuntu, but my guess is the CPU didn't survive.
Before I do anything drastic like whippin' out the magic wallet and get her a new AMD quad, is there anything I didn't see?
I'm guessing the motherboard could be borkered as well, but can I check that other than replacing the CPU with a working one?
Any suggestions on which proggies I can use from an Ubuntu Live CD to stress the CPU?

 

Random BSOD while browsing internet


BitDefender is nothing special. mwac.sys causes BSODs anywhere.
A tiny documentation can be found here: Solved Random BSODs - Windows 10 Forums
In that very thread, the suggested action apparently worked.

The storage and network filters of any third party antivirus can cause BSODs. Neither MBAM nor BitDefender is any special. For a regular antivirus, it may be shifted to an alternative; but MBAM has no alternative. So a clean install of the said program is the most feasible first step.
As far as the first step is not failing, it is better to not think for the second step. Because the BSODs are not universal, failure at the first step is not universal; and success at the second step is also not universal.
That is why I posted that my suggestion may work, or may not. Let us see where it goes.

 

Random BSOD Reboots

Recently, my PC has started having random BSOD reboots. Sometimes these happen when the PC is not being used, so I'm assuming it's some sort of background process causing them. A few months back there was an issue with Norton Antivirus. I uninstalled and reinstalled it, and the BSODs stopped. Looking at Windows Reliability History, there are occasionally days where no BSODs occur. Currently, three days in a row it's happened, with today, it happening twice within 30 minutes.