System configuration? motherboard, GPU, memory, PSU in particular.
And background...is this a new build or it just happened?
OK... it should power on out-of-the-box with a B550. Nothing about memory but I'll assume you've two DIMM's of DDR4 and they are in the 2nd and 4rth DIMM socket going away from CPU.New build. Corsair RM 750, PSU MSI MPG B550 Gaming Edge Wifi, Asus KO OC RTX 3060 ti.