PC black screening multiple times while using

[dvstt]

For the last 2 weeks, my PC has started black screening randomly whilst using. Any help in fixing would be greatly appreciated.

 

The blacking screening doesn't happen after a particular amount of time, can be an hour or 5 hours. The PC doesn't turn off and you can still hear audio through the speakers along with system sounds.

 

I have updated to latest Nvidia drivers, ran Windows Memory test and have detected no issues. Health & Performance says everything is fine.

 

On the Event Viewer it displays: Critical - Kernal Power - Event ID 41 (Task category 63) at the time of of failure.

 

Using HWInfo, I looked at temps:

CPU Temps (45-70) and GPU temp (50-51) remain constant.

 

PC Specs:

MB: MSI 7808

Bios version: American Megatrends V1.1

CPU: Intel i7-3770

RAM: 16gb DDR2

GPU: GTX 970

PSU: XFX (I believe 750watts)

Windows: 10 - 10.0.1836. Build 18363

 

Would anyone be able to advise on the best course of action?

[NomNom_]

Could be loose connection to the monitor or faulty cables, or HDD/SSD failing

[dvstt]

Checked all cables. Has run fine on Wednesday, however its just done is again. I was running HWInfo and in the moments before my GPU Memory Allocated dropped from 2062mb to 266mb and my GPU D3D Memory Dedicated dropped from 2102mb to 8mb. Do you think this would cause the issue?