Faster memory will clock down to run at optimal speed depending on processor model and number of modules installed.
Mixing x4 and x8 modules is allowed, however not within the same bank.
Kingston offers both Registered (RDIMM) and Load Reduced (LRDIMM) memory modules. Registered and Load Reduced modules CANNOT be mixed within the same system.
Please note specific board revision and/or BIOS/firmware upgrade maybe required to utilize the following parts that use 16Gbit technology: