One of the first things we do after building a PC is boot into the BIOS and make sure XMP is enabled so that our RAM runs at its rated speed. I clearly remember doing just that when I first built my current PC with a Ryzen 9 5900X in 2020. After that, I never gave my RAM speed another thought. Usually, you have almost no reason to. But then, when I eventually upgraded to the 5800X3D, I had to update the BIOS before swapping the CPU.