Question Screen goes black while gaming (sound working) ?

[Hellgate]

Hello,

i bought a new pc like a week ago, and just now when i started gaming warzone, 5 minutes into the game the pc screen goes black but the pc is still on. I can hear sound in the background, and sometimes the pc does a complete restart.

I have i9 11900kf
rtx 3090
motherboard z590 ud ac

 

[AB2647]

Could you please state the brand, model, and make of your Power Supply Unit?

 

[Hellgate]

Could you please state the brand, model, and make of your Power Supply Unit?

i tried looking into that but i cant seem to find any label and i dont know how to unmount it from the h510i case to look at it.
I just now tried changing the cables that goes into the gpu first it was 2 - 8 pin cables i removed them and inserted the cables that are also the same but have 2 pin loose on each cable.
I still havent got black screen.