A-Tech 256GB DDR5 4800 ECC RDIMM server RAM

256GB DDR5 4800 ECC RDIMM Server Module

This single 256GB module delivers DDR5 4800 speed with ECC registered reliability for HP/HPE server platforms. It targets administrators who need maximum capacity per slot in memory-intensive workloads such as virtualisation, large databases or in-memory analytics. The 2S4Rx4 rank structure uses 3DS/TSV stacking to reach this density in a standard 288-pin form factor. Major-brand DRAM ICs and a 1.10V operating voltage complete the specification.

Verify Slot Count and Platform Qualification

Confirm that your server model appears on the qualified vendor list for HP/HPE part numbers P50314-B21, P56155-001 or P43339-1A1 before ordering. Check how many DIMM slots remain free and whether the platform requires matched ranks per channel for optimal throughput. The module operates at 1.10V with a CAS latency of 40; ensure the system BIOS supports this speed and timing without manual adjustment. No heat spreader is fitted, so airflow across the DIMM area must be adequate.

Replaces Lower-Capacity DDR5 RDIMMs

This module replaces smaller DDR5 RDIMMs when the workload demands more memory per channel than those modules provide. The upgrade is worthwhile when the application is capacity-bound rather than bandwidth-bound and the platform can address the full 256GB per slot. It is not suited for systems limited to lower maximum module densities or for consumer desktop boards that lack registered ECC support.