System x3550 M5 supports TruDDR4 Memory. TruDDR Memory uses the highest-quality components
sourced from Tier 1 DRAM suppliers and only memory that meets our strict requirements is selected. It is
compatibility tested and tuned on every System x server to maximize performance and reliability.
TruDDR4 Memory will have a unique signature programmed into the DIMM, which will enable System x
servers to verify whether the memory installed is qualified/supported. Because TruDDR4 Memory is
authenticated, certain extended memory performance features can be enabled to extend performance
over industry standards. From a service and support standpoint, System x memory automatically
assumes the system's warranty, and service and support provided worldwide.