NEMIX RAM 64GB 4x16GB DDR5 4800 CL40 ECC RDIMM Supermicro H14SHM memory upgrade

Exact-match DDR5 ECC RDIMM kit

This 64GB kit contains four 16GB DDR5 4800 registered ECC modules built to the precise rank, voltage and timing the Supermicro H14SHM memory controller expects. It is for administrators who need the full 64GB recognised at rated speed without manual tuning. Buyers who want unbuffered UDIMMs or non-ECC memory cannot use this kit.

Straightforward 288-pin RDIMM install

Each module slots into the standard 288-pin DDR5 RDIMM sockets on the H14SHM. The usual issue is ignoring the board's population order; the manual specifies which slots must be filled first for four modules to train at 4800 MT/s. Mixing these registered DIMMs with any UDIMM or SODIMM prevents the system from posting.

Registered ECC architecture

The single specification that decides fit is the registered ECC RDIMM design with 1Rx8 organisation at 1.1V. The board's memory controller requires buffered modules to run all four slots at full capacity while ECC corrects single-bit errors on the fly. If your platform calls for unbuffered or non-ECC memory, this kit will not work.