I bought a new power supply And this. The problem was not solved
)))))
After I got a new power supply and the problem wasn't resolved, I took my system back to a specialist. He said the issue is related to the GPU BIOS because it operates in Legacy mode and not UEFI.
However, I checked in GPU-Z, and the UEFI checkbox for my GPU is ticked, so I don't understand what he meant. He said that if you can play games and the system boots up, but after several restarts, there's no problem with the power supply or any other hardware—it's just the GPU BIOS.
He advised me to get the BIOS file from Sapphire, but unfortunately, Sapphire said my warranty has expired and didn't provide me with any files. I also found two BIOS files for my GPU on TechPowerUp's website, but installing them didn't make any difference.
Can you help me?
I should also mention that when I turn off CSM, during the next boot, the system suddenly restarts on its own and automatically enables CSM again!
It always wants to be on CSM, but then again, the beep repeats!!!