NEMIX RAM DDR5 6400 256GB 4x64GB CL52 1.1V 2Rx4 ECC RDIMM Supermicro H14DSH memory upgrade

Exact-match DDR5-6400 kit for Supermicro H14DSH

This 256 GB kit contains four 64 GB registered ECC RDIMMs built to the precise rank, voltage and timing the Supermicro H14DSH memory controller expects. Each module is a 288-pin DDR5 RDIMM rated at 6400 MT/s with CL52 latency and 1.1 V operation. The registered architecture offloads the controller so every slot runs fully populated at full capacity while ECC corrects single-bit errors on the fly.

Capacity and headroom

Four 64 GB modules deliver 256 GB of registered ECC memory for multi-socket workloads that demand large datasets in flight. The 2Rx4 organisation and registered buffering let the board run all slots populated at the rated 6400 MT/s without down-clocking. Headroom ends at the motherboard's maximum supported capacity per channel and total DIMM count; exceeding those limits will prevent the system from posting or force reduced speeds.

DDR5 RDIMM interface limits

The 288-pin DDR5 RDIMM form factor fits only boards wired for registered DDR5 memory; it will not seat in UDIMM or SODIMM slots. Bandwidth is bounded by the PC5-51200 data rate and the memory controller's maximum supported frequency. Population rules defined by the H14DSH manual dictate which slots must be filled first and how many ranks per channel the controller can address.