PC Freezes randomly

[simplepcuser]

For quite some time now my PC has been freezing randomly - the last frame is still displayed but nothing is seems to be working - no IO, sound output and etc. The only thing that I can do is forcing the PC to shutdown via the power button (pressing it once / the restart button only works sometimes, for some reason..) and restarting the computer. After that it seems to be working fine - for a day or so, until the next freeze.
Things I have tried:
- Updating the drivers
- Fixing the windows installation
- Creating a new clean windows install
- Disabling windows update
- Strengthening all of the cable connections
- Looking for system events in the event logger around the time of the freeze (didn't find much, warnings and errors that didn't lead me anywhere..)

SYSTEM INFO:
motherboard: Jingsha x99-d8 (bios version: 5.11 UEFI) with 32GB DDR4 ram
CPU: Intel Xeon E5-2678 v3
GPU: NVIDIA GeForce RTX 2070
SSD: WD Blue SN570 500GB (nvme)
NETWORK: tp-link archer t5e ac1200
OS: windows 64 bit

[FI Fheonix]

18 minutes ago, simplepcuser said:

For quite some time now my PC has been freezing randomly - the last frame is still displayed but nothing is seems to be working - no IO, sound output and etc. The only thing that I can do is forcing the PC to shutdown via the power button (pressing it once / the restart button only works sometimes, for some reason..) and restarting the computer. After that it seems to be working fine - for a day or so, until the next freeze.
Things I have tried:
- Updating the drivers
- Fixing the windows installation
- Creating a new clean windows install
- Disabling windows update
- Strengthening all of the cable connections
- Looking for system events in the event logger around the time of the freeze (didn't find much, warnings and errors that didn't lead me anywhere..)

SYSTEM INFO:
motherboard: Jingsha x99-d8 (bios version: 5.11 UEFI) with 32GB DDR4 ram
CPU: Intel Xeon E5-2678 v3
GPU: NVIDIA GeForce RTX 2070
SSD: WD Blue SN570 500GB (nvme)
NETWORK: tp-link archer t5e ac1200
OS: windows 64 bit

What’s the name and brand of your PSU?

[simplepcuser]

42 minutes ago, FI Fheonix said:

What’s the name and brand of your PSU?

thermaltake 600w toughpower W0103

[IR76]

22 hours ago, simplepcuser said:

thermaltake 600w toughpower W0103

Send an image of the task manager processes please and I can go from there.