UPADATE: Was the PSU, replaced with Corsair RMx and working great now!
Just got a new PC, all parts brand new, but when i play games my PC has a power failure and powers off, then restarts.
All temperatures are normal (CPU around 50c, and GPU around 70c max load). Stress testing the psu and cpu using tools did not seem to cause the issue.
I have an old graphics card i tested with for 10 minutes and it did not seem to cause the issue, but it is very old and does not draw much power, nor can it even load games like metro exodus which have b