General

Engineer's Note

Designed for server platforms, this DDR5-6400 RDIMM module with ECC and registered signaling delivers exceptional data integrity and stability for memory-intensive workloads such as virtualization, in-memory databases, and large-scale data analytics. Its dual-rank x8 configuration interleaves memory accesses across two ranks on a single module, increasing effective bandwidth and allowing the memory controller to overlap commands for reduced latency under heavy loads.

Technical Specs & Insights

1. Registered DIMM architecture buffers command and address lines, preserving signal integrity across fully populated server nodes and maximizing uptime for mission-critical enterprise applications.
2. ECC protection actively detects and corrects single-bit errors, preventing silent data corruption during long-running database transactions and in-memory analytics.
3. The DDR5-6400 transfer rate dramatically expands memory bandwidth per core, accelerating simultaneous VM operations and large-scale container orchestration.
4. The 48GB capacity module, built with high-density 24Gb DRAM components, provides an optimal footprint for memory-constrained 1DPC server configurations while maintaining balanced cost per gigabyte.
5. Dual rank x8 organization enables rank interleaving, sustaining near-peak throughput under heavy mixed-workload conditions typical of software-defined storage and hyperconverged infrastructure.

Why These Specs Matter

Identifying the module as a DDR5 48GB Registered DIMM immediately places it in the server arena, where uptime and data fidelity are non-negotiable. The four defining characteristics translate directly into operational resilience for critical enterprise workloads.

ECC is your last line of defense against silent data corruption. In a high-density virtualization cluster hosting dozens of VMs, a single cosmic ray-induced bit flip in memory can crash an entire hypervisor or silently poison transactional data. ECC detects and corrects these errors in real time, preserving service continuity. The Registered architecture, via an onboard command/address buffer, stabilizes signal integrity when populating multiple DIMMs per channel. For an in-memory database like SAP HANA or a Redis cluster where terabytes of data must reside close to the CPU, this buffering is what allows you to fill all slots without timing failures, enabling massive, reliable datasets. Finally, the Dual Rank x8 organization interleaves memory banks for better bandwidth utilization. Under the relentless parallel requests of a virtualized environment, this rank interleaving reduces latency and raises throughput, directly increasing the number of VMs a single server can host without swapping. Combined with the 6400MT/s speed, it feeds modern multi-core server CPUs properly, turning raw compute potential into measurable business performance.

Endurance & Reliability

General Virtualization
For a mid-density virtualization host, populate the server with eight or twelve of these 48 GB RDIMMs across all memory channels to achieve 384–576 GB total capacity. This balanced configuration supports a high consolidation ratio of VMs while maintaining memory bandwidth through uniform channel distribution, avoiding NUMA imbalances.

In-Memory Database
Maximize capacity per socket by installing one DIMM per channel initially, then expand to two DIMMs per channel if larger datasets are required. Due to the dual-rank design, populating all channels with these modules yields low-latency, high-throughput memory access ideal for Redis or SAP HANA; avoid mixing with smaller DIMMs to prevent bandwidth degradation.

High-Performance Computing
Configure a fully symmetric population across all memory channels—typically one 48 GB DIMM per channel—to deliver peak memory bandwidth for memory-bound simulations. The registered ECC and DDR5-6400 speed ensure data integrity during long-running parallel jobs, while dual-rank x8 organization provides a sweet spot between capacity and command rate for HPC workloads.

Verified Compatibility

Rigorously tested DDR5 RDIMM compatible with Dell PowerEdge R760, HPE ProLiant DL380 Gen11, Lenovo ThinkSystem SR650 V3.

FAQ