A:Answer The RAM may be 5600, but it's clocked at 5200. Here's an article piece that explains it:
"Fun fact on memory backwards compatibility
Did you know that within the same memory technology (DDR4/DDR5), higher speed memory can downclock when system specifications only support lower speed grades? For example: DDR5 5200MT/s memory can downclock if system specification only supports DDR5 4800MT/s. Similarly, DDR5 5600MT/s memory can downclock if system specification only supports DDR5 5200 or 4800MT/s."
Hope that helps!