Windows 10: Brand New High end gaming PC having Crashes for multiple games

Specs:Rtx 4080 gpuI9 12900k cpu64gb ram Watercooled system with 1200w powersupply Msi Z790 motherboard 2 TB SSDIve recently aquired a brand new gaming PC but have encountered multiple crashes in multiple games Red dead redemption 2/witcher 3/cyberpunk/kingdom come deliverence/hell let loose/etc... The games will boot up and run great for a time but typically within 10-20 minutes my games will crashI've updated windows, updated drivers, tried lowering settings, checked temps nothing above 72 for either CPU or GPU amongst many other fix attempts 3 things to note: 1. Playing a very old game

:)

 

High End Game on a Low end PC

what happens when playing high end games on low end pc

 

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?

 

High end build, stuttering in every game

Nice piece of software right there......here's mine and I'm shocked.