PC screen goes black, GPU fans ramp to 100%, forcing restart when gaming

[Sora1995]

Lately I've had this issue where my computer just completely freezes, goes black, the GPU fans ramp up all the way, and I have to manually restart the computer. This seems to happen near instantaneously in heavy, demanding games, but can take ages to happen in games with pixelated graphics. I initially thought it could be my power supply, as I had one that was known to fail and take parts with it, but it still continues to do this even after purchasing a new power supply. My system is as follows:

CPU: Ryzen 7 5800x
GPU: EVGA RTX 2070 Black Gaming
RAM: 64GB Corsair Vengeance Pro RGB
PSU: Corsair RM750x
Motherboard: ASUS ROG Strix B550-F Gaming
 

[Kmsample2028]

Is your computer up to date with drivers and updates?

[Sora1995]

1 minute ago, Kmsample2028 said:

Is your computer up to date with drivers and updates?

Yep, everything is up to date

[Apemanonline]

MEMTEST your memory. (Not shore if were allowed to post links)

 

let it complete the test if it does and your cpu has build in gpu i would removing the 2070 out of machine and try running a stress test on the cpu. But 64 gig!!!!!!!! this could take a while.

 

Prime95 monitor temps the cpu usage Coretemp would help here.

 

if all this works then ya left with 2070 so its power drivers or card.

 

clear your drivers DDU from guru3d run in safe mode instructions on site but its really easy (I can do it)

 

install latest stable driver.

 

test again FurMark 3d mark run a game.......

 

Now ya down to power can you test your card in another machine which has a known working psu upto running the 2070. I know you changed your psu but donor system works fine with existing stuff all ya change is GPU then if it stop working!

 

Clever people will be along soon to help you this should keep ya busy till they do

[Sora1995]

Memtest will have to be done overnight, but I did try DDU, it didn't help. I know my CPU temp is cool, as the cooler it has is overkill and has fresh paste. It's still doing this, so it's got to be the graphics card. I just wish I knew what caused it

 

[Apemanonline]

just fyi Power supply can cause all sorts of damage without ever killing the system. If your old psu was faulty spikes in voltage etc graphic cards are prone to power problems as off late (Nvidia most of all. Couldn't resit)