freeze and black screen

[rems1989]

For some time now, my PC has been freezing and I have to turn it off. At the moment I can launch it, but few days ago I had a black screen 95% of the time on start-up.
The problem can occur after several hours of gaming, and I've had it in the office too, i'm not sure it's about power supplies but don't know where to post it.

I've already carried out quite a few tests with the help of chatgpt:
OCCT CPU/GPU/RAM test: no worries
Stress test GPU with Afterburner: RAS
Correct temperatures according to HWiNFO
Graphics drivers fully reinstalled via (uninstall via DDU and reinstall via GeForce Experience)
Windows system events sometimes indicate "unexpected shutdown" or "WUDFRd loading failure".

I suspected a power supply or graphics card problem. For this, I recorded the readings via HWiNFO up to the moment of the freeze yesterday (around 5:23 pm for a first temporary freeze, then at the end for a freeze over time).

Here's the HWiNFO log file (excel): https://gofile.io/d/z4MgPg

My config :
i7 10700KF
RTX 3070
MSI Z490 Gaming Plus
32 GB DDR4
SSD NVMe + HDD
Current power supply: TX750M which I'm going to try and replace with the Seasonic ATX 750W 80+ Gold which I can still cancel if I manage to resolve without the power supply change.

Thanks in advance to those who will take the time to take a look at my readings

 

[johnb35]

Have you ran an SSD diagnostic?

 

[rems1989]

yes, I used Get-PhysicalDisk in PowerShell → the status was “Healthy”
Additionally, I ran a sfc /scannow to make sure Windows system files were intact — no issues found.