Windows 10: My PC crashes only when I play

My brother built me a PC a couple years ago and I have never been able to play on it. I use it almost daily for work usually just on Google and Excel without any issues but when I try to play ex. Call of Duty, Elden Ring, and God of War it crashes after a certain amount of time. It crashes the fastest with Call of Duty. The crashes would consist of my screen freezing and I would be unable to do anything except click the power on/off button. Although when I run the game on safe mode on Steam it crashes to the desktop. I don't know much about fixing PCs so any help you can offer would be hig

:)

 

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?

 

MSI Afterburner Crashes PC

Please play nice here, the mods are cool guys but will step in when you are acting up. this forum is full of knowledge and good people. we know you are frustrated and TPU will help as much as possible

THANKS

 

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.