I got the computer brand new. I updated it... downloaded Blizzard and then downloaded COD MW (Call of Duty: Modern Warfare). I rage quit and got a black screen and the rig was not useable. hard restart. Again this time no rage quit but once the match was over black screen and I had to power the pc down manually from the rig. Repeat a few more times. I factory reset then did all updates and driver updates carefully. Play COD WZ (Call of Duty: Warzone), black screen at the end of the match. Can't do any commands. It's the R12 that cost 5 grand so if you wanna check the specs, its the most expensive 1 they offer. 128 gigs, water cooled all that STUFF. I wanna factory reset it 1 more time. I dont have alotta pc knowledge. What am I supposed to exactly do to my pc after turning it on for the first time and downloading a video game?

11th Gen Intel Core i9-11900KF
NVIDIA GeForce RTX 3090 24GB G DDR6X
2TB M.2 PCIe SSD (Boot) + 2TB 7200RPM SATA 6Gb/s (Storage)
128GB Quad Channel DDR4 XMP at 3400MHz
Lunar Light chassis with High- Performance CPU Liquid Cooling and 1000W Power Supply