R730 Poweredge Add RAM 32 GB

Hi,

I have a PowerEdge Server R730, which i installed 6x16GB RAM the previous year.

I buy and put a 2x32GB RAM (lrdimm), but i received this error "  Memory detected, but is not configurable. Error detected during memory configuration." and the system canno't boot

Any Idea to resolve this ?

Thank YOU Sir !