Question Random BSOD and Event 41 Kernel-Power |NVMe drive -> off

[6_ERALDI]

Hi all,

I've been getting random BSOD (for less than a second) then the automatic reboot sends it to BIOS (UEFI), without ever succeeding at a restart.
I noticed the booting SSD (NVMe) wasn't blinking, so it's off. (also it doesn't appear on BIOS screen) After that, the only way to get the PC running again is to shut it off completely, and powering it back on again.
On Event Viewer, I can only see Critical-> Event 41-> Kernel-Power. But I cannot find the reason for the BSOD

My specs:
MoBo: MSI MAG Tomahawk B550
CPU: Ryzen 5 5600
GPU: MSI something RX570 8GB OC
Storage:
- NVMe: Samsung 990 Pro with Heatsink 1TB
- SATA: Kingston something SSD 480GB
- SATA: Toshiba something HDD 2TB
- SATA: Toshiba something else HDD 500GB

The NVMe drive is plugged in the slot right next (above) to the GPU, figured it's the main slot?
Let me know if you have any ideas, at least to get the BSOD code, which up to now I couldn't find anywhere.
Thanks

 

[6_ERALDI]

ok, to give more context (which I don't know what to make out of):

the sequence of the event, in practice, was this:

BSOD -> probably around 6:30
Successful boot ->7:10
first tom's hardware post -> ~7:27
second BSOD -> 7:29
second successful boot -> 7:33

But in the first picture, there's a _suspicious_ error, that says "The previous system shutdown at 7:10:36 PM on ‎1/‎24/‎2025 was unexpected."
BUT there is no system shutdown on that time. In the second picture you can see I have captured all the events for that specific time, 7:10:36, and you can see the PC was up and running, no shutdowns.

1st

https://imgur.com/a/yON1RJv

View: https://imgur.com/a/yON1RJv

Three red events on the 1st picture:
Critical: The system has rebooted without cleanly shutting down first. This error could be caused if the system stopped responding, crashed, or lost power unexpectedly. | 24-Jan-25 07:33:02 PM
Error: Dump file creation failed due to error during dump creation. BugCheckProgress was: 0x00040049 | 24-Jan-25 07:33:02 PM
Error: The previous system shutdown at 7:10:36 PM on ‎1/‎24/‎2025 was unexpected. | 24-Jan-25 07:33:08 PM
2nd

https://imgur.com/a/lgfvD0Z

View: https://imgur.com/a/lgfvD0Z


Let me know if I can provide anything else

 

[6_ERALDI]

Also,
Why I put this in the Motherboard section:
The main problem here (since BSOD was later discovered) is that the NVMe drive doesn't power up after this kind of error. I have to power cycle in order to get it running again.
I read somewhere that the solution to that might be:
1. Disable the lights on the drive (Activity LED)
2. Select Gen4 in the BIOS
3. Disabled VMD (which IDK)

so before I try anything else, I need to see what I'm doing here 😉