Windows 10: Kernal Power Crash while playing games

https://1drv.ms/u/s!ArZQjswAZJJOjw8TNJDLkWJWURVe?e=azrg5Wattached is a link to a Onedrive file with Memory.Dmp, MSinfo and a CPUID.txt for computer specifications.I've playing Back 4 Blood and can play for around <30mins before the computer will freeze for roughly 1-2secs, the sound studders for those secs, then turns off to reboot. It then attempts to turn back on but can either, get stuck in a loop or switching off then back on or its starts and the Monitor doesn't detected the tower and goes to standby. To 'fix' these actions, I have to turn the power off at the wall for 30 secs.This has

:)

 

Kernal Power Error Crashes

I can't seem to find my exact problem anywhere else, just very similar ones. My computer is fine normally but when i'm playing more cpu and gpu intensive games my computer will out of nowhere shut everything off completely, completely black. Then it immediately
turns back on. I seem to think it's a hardware issue but am unsure of how to figure it. With every crash is a kernal power error. I have tried a lot of things like changing the ram slots from 1 and 3 to 2 and 4 and vice versa. I have tried using different
cables for gpu. I was just wondering if any help could be offered. I have not tried using different ram or a different power supply. Also my computer should be able to handle intensive games just fine.

Specs:

i7 7700k

gtx 1080

evga 750 watt power supply

g skill ripjaws ddr4 16gb ram

 

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?

 

Critical Kernel Power 41 (63): Black screen, restart when playing game

Kernel Power 41 63

Computer turns black and automatically restarts when playing high demanding games, no BSOD, not overclocked.

Games that have crashed:

• Far Cry 4
  
• The Division
  
• Fortnite
  
• Overwatch
  
• Counter Strike GO
  
• Last Man Standing

Specs:

• Cooler master 550w PSU
  
• RX 470 4gb
  
• Pentium g4560
  
• Asrock MATX b250m MOBO
  
• 2x 4gb rip jaws RAM
  
• WD 1tb HDD
  
• Gammamax 300 CPU Cooler

OS: Windows 10

I built the PC myself, errors started when playing high demanding games for the first time. Ran stress tests when first built, prime95 and heaven whilst logging temps for 8 hours, no crashes or high temps (max cup temp 54 C, max gpu temp 76 C). However, when playing games, within an hour, computer crashes (always kernel 41 63). I sent the PC to the outlet where I purchased the parts from, they had their own technicians run tests on all the parts. Initially, they found a fault with the PSU, which was at that time a 500w EVGA bronze. They replaced it with a 550w Cooler master gold. Still experienced 41 63, black out and restarts. Took it back, I said I suspected the MOBO was the issue, so they replaced it under warranty, problem persisted. I took it back for a third time, they took it to their head office, did extensive testing and found a fault with the CPU, they replaced it. Took them 3 weeks to complete... issue is still not resolved.

At this point, my computer has been disassembled and parts replaced multiple times.

Things I have done:

• Updated all drivers (CPU, GPU, BIOS, sound etc)
  
• Clean installation of Windows 10 multiple times
  
• Stress tested with Heaven and Prime95
  
• Logged temperatures while stress testing and playing games, haven’t seen any high temps
  
• Disabled and enabled different sound drivers to test for conflicts
  
• Replaced PSU, MOBO and CPU

I’ve logged temps when both stress testing and while playing games. Here is my latest HWINFO log when playing Fortnite and then black screen and restart, kernel power 41 63. crash-test.CSV

Happy to run any tests, suggestions and upload further logs. Really stuck on what to do....