NEMIX RAM DDR5 384GB (4x96GB) 4800 CL40 1.1V ECC RDIMM Supermicro H13SVW-NT-OS2 memory upgrade

384GB DDR5 RDIMM kit for Supermicro H13SVW-NT-OS2

This 384GB kit contains four 96GB DDR5-4800 registered ECC modules built to the exact rank, voltage and timing the Supermicro H13SVW-NT-OS2 memory controller expects. Each 288-pin RDIMM operates at 1.1V with CL40 latency and 2Rx4 organisation, so the board recognises full capacity and runs at rated speed without manual tuning. The registered architecture offloads the controller, allowing every slot to stay fully populated while ECC corrects single-bit errors on the fly.

Sustained-load behaviour

Registered buffering keeps electrical loading low across all four slots, so signal integrity remains stable during long compute runs rather than only in short bursts. ECC detects and corrects single-bit errors continuously, preventing silent data corruption that would otherwise surface under hours of heavy memory pressure. The 1.1V operating voltage reduces thermal stress on the memory controller, helping maintain consistent throughput when the system stays at high utilisation for extended periods.

Upgrade path from smaller or unregistered DDR5 kits

This kit replaces lower-capacity RDIMM sets or unbuffered modules that cannot reach 384GB on this platform. The jump is worth it when your workload needs the full 384GB addressable space and the registered ECC reliability the Supermicro H13SVW-NT-OS2 requires. Builders using UDIMMs or mixed-rank populations that the board rejects should not buy this kit; it only fits systems validated for 4 x 96GB 2Rx4 registered DDR5-4800 at 1.1V.