NEMIX RAM DDR5 4800 384GB (4×96GB) CL40 1.1V 2Rx4 ECC RDIMM Supermicro H13DSG-O-CPU memory upgrade

Exact-fit DDR5 ECC RDIMM kit

This NEMIX RAM kit delivers 384 GB across four 96 GB DDR5-4800 registered ECC modules built to the Supermicro H13DSG-O-CPU motherboard's specifications. The 2Rx4 organisation, 1.1 V operating voltage and CL40 timing match the memory controller requirements so the full capacity is recognised at rated speed. Registered buffering offloads the controller when every slot is populated, while ECC corrects single-bit errors before they reach production workloads.

Upgrade from partial or lower-capacity DDR5 sets

Replacing a smaller RDIMM kit or mixed-rank configuration with this matched four-module set lets the server run fully populated at DDR5-4800 without downclocking. The jump is worth it when the workload demands the full 384 GB address space and the stability of registered ECC across all channels. Builders who need a different total capacity or a UDIMM form factor should look elsewhere, as this kit is fixed at four 96 GB registered modules.

DDR5-4800 registered ECC limits

The DDR5-4800 standard caps data-rate at 4800 MT/s and the registered interface adds one cycle of command latency, so peak bandwidth is bounded by the JEDEC PC5-38400 specification. Four 2Rx4 ranks per channel increase electrical loading, which the board's memory controller manages through the registered buffer; exceeding the validated population rules will prevent the kit from training at its rated speed. No higher DDR5 speed grade or alternative form factor is supported by this specific kit.