Windows 10: Crashing [shuts down] ONLY 15 to 30 mins into gaming load with root cause undetectable

First of all, I am a computer engineer, I've tried all I could think of the past few days. I could use some help at this point. PC specs are listed down below.Crashes ONLY during gaming load with root cause undetectable. No other load makes it crash. Only 15 to 30 mins into gaming.Out of nowhere, the PC started crashing [shutting down] whenever I tried to play a game.However, with zero crashes, I ran:- GPU stress-testing tool from UNIGINE at max settings multiple times- Prime95 CPU stress tests for 24h- MemTest86 Pro Edition v.9 [zero errors, both with and without XMP profile active]I checked

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GPU-Z 0.7.5 causing crashes on load up

Any chance you could narrow it down to which running application causes GPU-Z to crash? Ideally steps to reproduce for me here.

 

Why Live Tile is updated in Windows Phone @ 30 Mins interval?

Hi Jay..



Thanks for response!!!



I tried as per suggested steps, unfortunalty does not help.



I think it is Windows OS Limitation to have tile update on every 30 mins.

 

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?