Hello. Built my system back in 2016 with no issues. I have a UBS backup that started powering off randomly. My PC did not seem affected.
Now when I'm gaming the PC powers off entirely bringing me to bios. Could this be the PSU and UBS need to be replaced?
fratt, best you can do if you have no other way to test is to take it to a service center. Otherwise start swapping out parts such as PSU, Memory, HDD and mobo.