PHS-memory RAM suitable for Dell PowerEdge R820

This 8GB RAM is 100% compatible with Dell PowerEdge R820. Information regarding memory configuration: The following technical specifications should be noted in advance: The device can be equipped with RDIMM (Registered DIMM) or LRDIMM (Load Reduced DIMM) RAM. LRDIMM memory is recommended when large memory capacities are required. RDIMM memory modules cannot be mixed with LRDIMM memory. If a memory upgrade is to be made with the existing RAM, it must be checked which memory technology (RDIMM / LRDIMM) is currently in use. Memory slots without a processor present must not be populated. A higher memory clock speed of the memory module will automatically adjust to the clock speed set by the system. This can especially be the case with larger capacities. Low Voltage memory with 1.35V will be clocked at 1.5V when mixed with 1.5V memory due to the fallback option present in the memory. There are 4 memory channels per CPU, each with 3 memory slots.