So I got a new build from Cyberpower and it works well. 5900x, 3090. I mine with it and it will mine and stay on for hours and days without problem. However, when gaming (cyberpunk and Star Wars Fallen Order) I get a complete system power off randomly. The temps seem fine with this happens. Everything powers off but sometimes the RAM led stay on. Won't turn back on until I reset the psu. Also I think I do hear a high pitched squeel coming from the psu. It's a brand new corsair RM850. Does this sound like it could be a bad psu?