Windows 10: Games crashing on startup and Norton crash during heavy scans.

Good morning everyone,Firstly, thank you for taking the time to read and perhaps help me.So, for a while now i've seen my computer get weirder... It started with game crashed while playing, and now i have games crashing during startup.I can play games like RIMWORLD mostly without an issue, but others like stellaris crashes during startup at 79% and fallout new vegas during a new game start and i tried other heavy games with the same issue.I've run into a similar issue multiple times while scanning for viruses, since i thought it was a virus that was causing this, and i leave my pc scanning, so

:)

 

Hard crashes with ANY heavy load

Out of the blue, my computer has been crashing upon heavy loads. For example, playing a game. I can load into the menu fine, but when it finishes loading the game, either the game will crash or my computer will black screen and restart. Specs and what I have tried already are as follows:

• CPU: AMD Ryzen 5 5600G
  
• RAM: 32GB Corsair DDR4-3200MHz
  
• MOBO: ASUS X470 Prime Pro
  
• GPU: ZOTAC GTX-1070
  
• PSU: Corsair CX450
  

What I have tried:

• Updated drivers for CPU, GPU and MOBO BIOS updated
  
• reinstall GPU drivers via NVIDIA software utilities
  
• unplugged and reconnected all PSU connections, reseated GPU
  

I'm out of ideas. Any suggestions you have to fix my issues are greatly appreciated.

 

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.