Ryzen System Memory Temps

I don't know if this is a minor problem or not but...on my Ryzen Taichi X370 and ROG Hero VII X470 systems the memory temperatures show for Dimm[2] and Dimm[3].  On both systems the memory is installed in Dimm[2] and Dimm[4].  Never noticed since there is no memory temps showing on my ASRock Extreme6 systems.