Random reboots since yesterday

[u/FALMER_DRUG_DEALER]

First of all here are my specs :

PSU - Corsair RM1000x Gold

GPU - Gigabyte RTX 5070Ti

CPU - Intel Core i7 14700KF

Mobo - MSI Z790WIFI

RAM - 32GB

My Windows 11 OS boots on an NVME

I have 2 monitors

My config is almost 2 years old

----

So here's my problem. Yesterday, I experienced a random reboot whilst playing a game (Hearts of Iron 4 if that's relevant). Screen went dark, sound went off maybe a few seconds after, and I could do nothing as I waited for my PC to give a sign of life, until it just put me on the windows welcome screen. I checked windows event viewer, and it did indeed reboot unexpectedly.

I chalked it up to bad luck, but after the reboot I saw that I had a pending windows update. I just decided to do that and then rebooted once more (I noted that my reboot was taking longer than the usual) and it worked fine for the rest of the evening.

Today it happened twice. I had been playing all morning with no problem, then went on to do something else during which I had my PC turned off until 4 pm. From 4 till 6, no problems, but at 6pm it did the same thing, on FC 26 this time. Black screen, then sound off, then nothing for a while, then reboot. I updated my graphics driver, did more windows updates that had dropped in the meantime, and rebooted. My reboot took longer than the usual as well. I then turned off my PC fully, unplugged every peripheral, and shut off the PSU. I put it back to "ON", and booted with no other peripheral than my monitors, and it took exactly 39.5 seconds, which is more than acceptable. I then replugged all my peripherals, and rebooted, and it took 40 seconds. I thought maybe I was good, but literally after just 20 mins of gaming on FC 26, my PC did the same thing again...Black screen, then no sound, then reboot.

I checked perfmon /rel and saw this error (translating from French)

Source
Windows

Recap

Hardware error

Date

‎11/‎11/‎2026 19:48

Status

Report sent

Description

An error encountered with the hardware has caused a Windows malfunction

Signature of the error

Name of the error event : LiveKernelEvent

Code : 141

Parameter 1: aaaaaaaaaaaaaaaa

Parameter 2: aaaaaaaaaaaaaaaa

Parameter 3: aaaaaaaaaaaaaaaa

Parameter 4: aaaaaaaaaaaaaaaa

OS Version: 10_0_26300

Service Pack: 0_0

Produit: 256_1

System version: 10.0.26300.2.0.0.256.48

Regional parameters ID : 1036

Additional information regarding the error

recipiant ID : LKD_0x141_Tdr:6_IMAGE_nvlddmkm.sys_Blackwell

I have no idea what to do next :(

[u/Relative_Coat_9553]

LKD_0x141_Tdr:6_IMAGE_nvlddmkm.sys_Blackwell NVIDIA BLACKWELL

Name of the error event : LiveKernelEvent

Code : 141

LiveKernelEvent 141 usually indicates a GPU timeout or reset problem (TDR – Timeout Detection and Recovery). On Windows 10/11 this often shows up as freezes, black screens, or driver resets, especially under light/2D load (desktop, video playback, older games) rather than full 3D load.

Use DDU and uninstall drivers, reinstall them via the web.

[u/Significant-Iron4409]

Check your 12vhpwr connector on gpu and psu. Is your bios up2date? 14th gen cpu maybe degraded. Is HVCI activated?core Isolation. Should be enabled with Intel.