Having coil whine is really common. My strix had it for a while but after gaming on it for a few months the coil whine quietens down and now after a couple of years I can't hear it at all. Things need to "loosen" up a bitFirst PSU was a Corsair TX850 which is about 9 years old. I replaced it for a NZXT C850. Coil whine from the GPU was exactly the same with either PSU.