Windows 10: Crash diagnostic

[COLOR=rgba25, 30, 30, 1]I rebuilt my Pc fairly 30 daysrecently with a new case, CPU, RAM, and motherboard. The Pc 99% of the time runs completely fine even under heavy load gaming on several games eg CSGO, Tarkov, and AC odyssey.[/COLOR]
[COLOR=rgba25, 30, 30, 1]The only time the PC crashes is when watching Netflix on chrome and when loading into a game of League of Legends just load screen not the actual game. I have run some mem86 tests only a couple of passes 4 ish.[/COLOR]
[COLOR=rgba25, 30, 30, 1]With 0 errors I know more is often needed but it doesn't really seem like a RAM problem. League, I normally run-in Full-screen windowed.[/COLOR]
[COLOR=rgba25, 30, 30, 1]Programs running most of the time:[/COLOR]
Spotify
chrome 1tab
wallpaper engine
Rainmeter
Xbox App

[COLOR=rgba25, 30, 30, 1]The crashes however persist with all of these closed and sometimes don't happen at all when loading into League of legends. Seemingly happens most of the time when watching Netflix[/COLOR]
[COLOR=rgba25, 30, 30, 1]The PSU and graphics card ran in the previous system without these failures.[/COLOR]

[COLOR=rgba25, 30, 30, 1]Components & OS[/COLOR]
[COLOR=rgba25, 30, 30, 1]Win 10 pro[/COLOR]
[COLOR=rgba25, 30, 30, 1]MOBO: X570 Asrock steel legend[/COLOR]
[COLOR=rgba25, 30, 30, 1]PSU: corsair Tx 750m[/COLOR]
[COLOR=rgba25, 30, 30, 1]GPU: AMD 5700Xt[/COLOR]
[COLOR=rgba25, 30, 30, 1]CPU:AMD 5600x[/COLOR]
[COLOR=rgba25, 30, 30, 1]Storage: 500GB Sandisk and 1TB Sandisk SSD both nearly full [/COLOR]
[COLOR=rgba25, 30, 30, 1]Ram: corsair vengeance: 3600 running XMP profile[/COLOR]
[COLOR=rgba25, 30, 30, 1]running 5 fans in the case.[/COLOR]

[COLOR=rgba25, 30, 30, 1]The crashes seem to just insta- reboot the system with no BSOD the only error I can find in the event viewer is "70368744177664" kernel loss of power.[/COLOR]
[COLOR=rgba25, 30, 30, 1]any insight would be greatly appreciated and any info needed can be provided.[/COLOR]
[COLOR=rgba25, 30, 30, 1]pc auto-restart has been turned off but made no difference.[/COLOR]

[COLOR=rgba25, 30, 30, 1]Can Also swap out parts to brothers PC.[/COLOR]

:)

 

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?

 

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.

 

GPU-Z 0.8.7 crash on launch

W1zzard is asking you to test so that he can suggest next steps and be able to troubleshoot the issue you have.
If another version works, it would be one set of steps.
If several other versions also fail/crash, then it would be another.