Solved PC ist restarting while playing games

Hello,

recently i have this really annoying problem.

While i am playing EFT (escape from tarkov) my pc is irregular restarting.
First both my monitors are getting black, then the restart.

The logs says this:


I have tried so fixes yet, like this here:


PS:
i have a new gpu since 3 weeks, maybe the gpu itself is the problem(hardware) or the driver(software)

If anybody has an idea, i am thankfully for any help.
Every driver is up to date, and i have installed windows again after the gpu change.

Setup:
b450 tomahawk
32gb corsair
ryzen 7 3700x
rtx 7800 xt phantom gaming
thermaltake Rome 750 w

PS:
I did a prime95 run, with testing the ram and cpu, for 30 min. and the pc did not restartet or died.
Temperature was fine.

I have found the Problem.
Now that I have connected my GPU to my power supply with two separate cables, everything works.

Thanks for help.