Hi,
If processors power management is set to lower than 100% then your processor's performance is limited and as per your description your facing issue when the game application which requires more processing and RAM so I'm suggesting to increase processors power management setting to 100%.
If you don't find this option desktop PC then I would suggest you do a clean boot by following the steps below and see if the crash happens in the clean boot as well or not.
Fix#1 Clean boot Windows 10
Right-click the Start button.
Click Search.
Type msconfig and hit Enter on your keyboard.
Click Services.
Click the checkbox next to Hide all Microsoft services.
Click Disable all.
Click Startup.
Click Open Task Manager.
Click any startup program you suspect might be interfering.
Click Disable. Repeat steps 9 and 10 for all startup programs.
Click the X to close Task Manager.
Click OK in the System Configuration window.
Restart your PC.
Let me know the status after performing the above.
Regards
Shuaib
Independent Advisor