Display went black, GPU fan 100 percent while playing RDR 2

I just had a weird issue I've never experienced before on this PC (all new system I built when the 8700K was brand new). Was playing RDR 2. Played for 3+ hours no problem. Played for even longer yesterday no problem. I checked my temps in Afterburner after playing for hours yesterday. CPU peaked at ~60c GPU peaked at ~70c. But today while playing I noticed the screen start flashing black every 5 seconds or so. It did this 3 or 4 times. So I hit ESC and Ctrl Alt Del to pull up task manager. Task Manager showed the RDR2 exe as not responding. Which is correct because when I went back to the game clicking on the menu options did nothing. So I killed the game in task manager. Things were fine. I opened event viewer to see if I could figure anything out. Shortly after starting to look in event viewer the monitor goes black and the GPU fan instantly goes to 100 percent (pretty sure it was just the GPU, the fans on my CPU's CLC are so quiet I wouldn't have been able to tell. So I hit the power button, nothing happens. Hold the power button till the PC shuts off. I leave it alone for ~30 seconds and hit the power button again. Everything spins up but the monitor gets no signal. So I hold the button again to shut it down, and this time flick the switch on the PSU to kill the power completely. After that it booted back up perfectly fine.

Event viewer shows 4 entries of DWM.exe crashing at the time the issue occurred. I'm running Windows 10 Pro Version 2004 (build 19041.450) which is the latest non insider release with the latest cumulative update. Running the latest Nvidia drivers 451.67 released 07/09/2020.

Of course I've googled this and I have found plenty of links of people describing the exact same thing. One of them from reddit is only 23 days old. I've seen one person say it was their PSU but didn't give any info on how they verified that or how long it's been since replacing the PSU and not having the issue (the comment was edited multiple times).

I'm mainly more curious to see what you guys think than anything else. I'd be very surprised if it's hardware failure. Esp something major like the GPU. There has been zero artifcating or any of the other usual warning signs of GPU failure. As for my PSU I figured if it was gonna die it would just die suddenly (that's been my experience with them dying). Not causing this kind of issue.

I'll update if it happens again, below is a copy of what event viewer showed at the time of the problem. It repeats 4 times. I found nothing else in any section of event viewer other than the expected "computer did not shut down properly" entry. Thanks for taking the time to read this, if any other info might help let me know. I did run that log collection tool you guys offer for posting in the BSOD forums. I'll attach a copy for the heck of it even though it wasn't a BSOD.

Event[3769]: Log Name: Application Source: Application Error Date: 2020-08-16T22:34:54.4940000Z Event ID: 1000 Task: Application Crashing Events Level: Error Opcode: Info Keyword: Classic User: N/A User Name: N/A Computer: SEAN-DSKTP-MARCH202 Description: Faulting application name: dwm.exe, version: 10.0.19041.1, time stamp: 0x9a82ecd2Faulting module name: KERNELBASE.dll, version: 10.0.19041.423, time stamp: 0xed02c0bcException code: 0xe0464645Fault offset: 0x000000000010b3ccFaulting process id: 0xef0Faulting application start time: 0x01d674475e719517Faulting application path: C:\Windows\system32\dwm.exeFaulting module path: C:\Windows\System32\KERNELBASE.dllReport Id: be5de2f2-ab21-4f60-b663-cb061cb94438Faulting package full name: Faulting package-relative application ID:

V2 Log collector file.
SEAN-DSKTP-MARC-(2020-08-16_22-56-08).zip - Google Drive

Specs
Core i7 8700K @ 4.8 Ghz all core at 1.230v (been running this overclock since the 8700K came out and I got one)
EVGA GTX 1080 SC
MSI Z370 SLI Plus with latest BIOS
16 GB (2 x 8 GB) GSKILL DDR 4 3200
HP EX 920 1 TB PCI-E X4 SSD
2 3TB HDD's for storage

Long story short your card sustained a heat burst exceeding its cooling mechanism that triggered its fail safe procedure and then started operating back when it cooled to an optimum level .

EVGA claims :

Graphics card temperatures typically range from 30°C to 40°C at idle and from 60°C to 85°C under load. Most high end video cards typically have a maximum temperature between 95°C-105°C, at which point the system will shut off to prevent damage

So your case is that your card most probably - due to a glitch either by cooling fans / driver / psu - hit the 95°C+ marker and so it initiated the shut down mechanism till it cools down (this can happen in a blink so don't start a "but" argument) , you should start worrying if this repeats , determining which one of the three above was the cause is a little hard but then you can always service the fans , upgrade / downgrade the driver and try a different psu from a friend in turns to see which of these sort it for you in case it becomes a symptom that needs fixing .