PHS-memory 128GB (4x32GB) Kit RAM memory for Fujitsu Primergy RX900 S1 DDR3 RDIMM 1333MHz

This 128GB (4x32GB) RAM is 100% compatible with the Fujitsu Primergy RX900 S1. Maximum expansion with memory: Each CPU has 16 memory slots available. The memory slots can only be populated if the respective CPU is present. Maximum capacity per memory module: ECC UDIMM 8GB RAM, RDIMM 32GB RAM. You can use memory as UDIMM ECC or as RDIMM (Registered) memory. These different technologies cannot be operated together in the system. Therefore, when upgrading, you should know which memory is already installed or upgrade completely to RDIMM memory. To achieve good system performance, it is advisable to distribute the memory evenly across the memory slots and evenly across the CPUs. If more than one CPU is present, the memory should be populated identically (mirrored to the other CPU) per CPU. Only the memory slots where the respective CPU is present can be used.