MODULES MUST BE ORDERED AND INSTALLED IN IDENTICAL GROUPS OF EIGHT FOR MAXIMUM MEMORY PERFORMANCE.
Mixing x4 and x8 modules is not allowed.
Per Intel, only select Xeon Platinum 8400 series and Gold 6400 series processors support 4800MT/s DDR5. Mid- and lower-tier processor models will clock memory speeds down. Some processor models will limit speed to 4000MT/s. Kingston memory will automatically clock down to run at optimal speed depending on processor model.