Windows 10: Pc hard crashes anytime I game after being stable for a month

I have had this pc for 2 years.This started last year, pc is a 7900xstrix b650e-f32gb ddr5 5200mhz40701tb sn850 os1tb sn7701tb wavlink 880tI had to swap drives 3 times980 pro, 990 pro, and now sn850after a few weeks of a fresh install of windows my entire pc will crash every time I game seemingly out of nowhere without changing any settings.the 990 pro became so unstable after a fresh install it would crash just booting.I cannot check the crash dump because ever time it crashes it fails to log the filesplease help.I have tried so many settings and after 3 months of constant crashing I am fru

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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?

 

Game crashing all the time / PC freezes sometimes

Since about a month I have the problem that a game (Grand Theft Auto V) is crashing all the time. Sometimes the complete PC freezes too so that it displays the old image e.g. a few minutes ago (completely unresponsive, only restarting the PC helps). The time is not predictable, when it crashes. At one time it crashes after five minutes, another time it crashes after half an hour. But one thing is sure - it will crash.

I have contacted the Rockstar Support and they say they can't help me anymore. Things I did asked by the Rockstar Support:

• reinstalled the game and Social Club multiple times
  
• deleted game files in AppData/Local/Rockstar Games/GTA V and Documents\Rockstar Games\Social Club
  
• deleted C:\Program Files (x86)\Steam\steamapps\common\Grand Theft Auto V\GTAVLauncher.exe and restored via Steam option Verify integrity of game files
  
• DISM.exe /Online /Cleanup-image /Restorehealth and sfc /scannow multiple times
  
• uninstalled another app, which should be responsible for network timeouts/blocking
  
• switching to story mode/second character
  
• submitted the export of msinfo32 including crash reports to the support
  
• changed firewall settings
  

Things I tried myself:

• played in Safe Mode
  
• changed graphics settings
  
• removed OC
  
• updated to latest Nvidia driver (436.15)
  
• updated Windows 10
  
• checked the event log, but there is no entry
  
• executed memtest86 without problems
  
• made a stress test with FurMark without problems
  

I don't have expierenced similar problems in other games/apps.

System configuration:

• i5-6600K
  
• 16 GB RAM
  
• Nvidia GeForce GTX 780
  

Temperature is always OK.

Launcher.log from GTA V writes something like:

How can I find the cause of this error?

 

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.