Black Screen Crashing with sounds and system still running

[Scooter]

Specs:

Strix 3090ti GPU (water cooled) 9(<1.5year old)
SuperNova 1600w PSU (unknown bought used)
AMD 5800x3D cpu (NZXT two fan radiator water cooled) (<8 months old)
Gskill NEO 3600 16CL Ram (<1 day)
Asus B550-F Motherboard (<8 months)
SeaGate 500gb ssd(OS SSD/60%usage) & 2tb Western Digital m.2 ssd 50% usage(Game storage) (<1.5year old)

I keep having a strange crash happening under load. All my screens go black whilst under load, but audio continues. I can hear what ever game audio was playing but new audio doesnt load, i can continue to hear my friends in discord temporally and the gpu-z log keeps recording for a couple of seconds. I have to force restart the system. It seems to occur more if the crank of the graphics or adjust ram and CPU performance settings in bios. Making me thing that the cpu and ram performance increase is causing an increased power draw. So Im under the suspicions that its the psu. But im not sure because maybe the increased cpu performace is letting the gpu work more causing the crash, so im worried its the gpu. I have been using gpu-z to log psu voltage before the crash, under load and during the crash the psu voltage is between 10.8-11.2. Also because the system seems to run for a little bit the logs keep going after the screen go black and it appears as if the gpu is turn off entirely with the voltage gpu dropping to 0v from 1.02v I have no over clocks to the gpu. I have us DDU and reinstalled the drivers. The ram listed is a day old replaced in an effort to fix the issue. I have tried the short cut keys to relaunch drivers. New psu coming in, considering reinstalling windows or contacting asus for gpu warrenty(scared about that XD) but im wondering if these symptom can be caused my a low voltage failing psu considering the whole system doesnt shut down, at least for a minute after the blackscreen. Or if the low voltage psu has caused damage due the gpu due to undervolting the gpu for an unknown amout of time.

also on medium setting in game i get 600 fps, but overtime (10-50mins) it can drop as low as 100) even with all temp below 60-70)

 

[Deleted member 229121]

It's likely the GPU, I'd swap in another and see if you have the same issues under load (if not you have your answer).

That's a good PSU you have too, but could also be up to 9x years old based on it's initial release date.
Swap the GPU out to test, and if you still have the same issues replace the PSU.

 

[thesmokingman]

Take a pic of your case specifically showing how you have the rad mounted for the gpu. Blackscreen w/o crashing is usually gpu related.

 

[Calenhad]

10.8 - 11.2 volts on the 12 volt rail is not, shall we say, optimal for stability either. Any chance to test with a different PSU? The ATX spec specifies that the 12V rail should be between 11.4 - 13.2V. Personally I would not accept any deviation below 11.9, preferably 11.95. I would rather have a PSU that push 12.1-12.5V under load. But as said, according to spec it should be at least 11.4V