Windows 10: computer crashing several times a day

Good morningI have posted this problem recently but have been unable to find the cause of my computer crashing numerous times. What happens is I am working away on documents with several windows open when without warning the screen goes black and is unresponsive. I have to turn the computer off and on again. I have done numerous tests including an extended Windows Memory Diagnostic, system scans, clean boot, checked the CPR is not overheating or fan damaged etc, Nothing has shown up as wrong, but the computer is still crashing. The first time it happened was the day Microsoft performed the aut

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Computer Crashing Once Per Day

I have an issue that whenever I play a video or start a game, my computer will crash, I see a black screen and then it reboots. It happens once per day. Once it crashes, it wont crash for the rest of the day, even if I
happen to shut down or restart the computer. I shut down the computer every night.

Recently, for the past week, I have been putting the computer to sleep every night instead and I have not crashed once. Even after restarting the computer to install several programs I believed to have been causing the
issue.

System Specs:

• MSI B450I motherboard
• Nvidia RTX 3070
• 16GB of RAM DDR4 3600
• AMD 3600 Processor

Troubleshooting steps:

• Cleaned the registry with CCleaner
• Tested Memory several times, no issues found
• Ran sfc /scannow, there was no corruption
• disabled all non essential startup processes and services, all the windows ones are active
• Updated all my hardware drivers, including video card and system board
• Ran stress tests of CPU, GPU, and Memory
• Replaced GTX 970 GPU

 

all games crash!

I suggest you run rthdribl > http://www.daionet.gr.jp/~masa/archives/rthdribl_1_2.zip
Increase the window size step by step and watch your vga temps permanently.
What happens?
If it crashes, run at stock speeds as suggested before and retry.

P.S.: When your system locks, does the display signal turn off after a time?
Stuttering sound or no sound at all when freezing?
What X1800XT model do you own exactly?

 

all games crash!

ive watch my temps and both the cpu and gpu are within normal ranges. when it freezes it simply freezes the image and stops the sound. i must reboot to get back to windows.