General

Engineer's Note

Designed for server environments, this 64GB DDR4-3200 Registered ECC RDIMM is ideally suited for memory-intensive workloads such as virtualization, in-memory databases, and enterprise data processing where data integrity is critical. Its Dual Rank x4 configuration maximizes memory density and throughput per channel, while Registered buffering and ECC ensure robust signal stability and automatic error correction for 24/7 reliability under heavy load.

Technical Specs & Insights

1. ECC protection actively detects and corrects single-bit memory errors, safeguarding transactional integrity in financial databases and preventing silent data corruption in 24/7 server operations.

2. Registered signal type buffers command and address lines, enabling the server board to support massive memory populations without signal degradation, essential for high-density virtualization clusters.

3. 64 GB capacity per stick allows a single 1U server to reach terabyte-class memory footprints, drastically increasing VM density and in-memory database performance per rack unit.

4. Dual Rank x4 organization interleaves memory accesses across two internal rank groups, boosting sustained bandwidth under concurrent workloads like real-time analytics and containerized microservices.

5. 3200 MHz speed elevates per-channel throughput, cutting data retrieval latency in cache-heavy applications and accelerating large dataset transfers between CPU and memory in AI inference nodes.

Why These Specs Matter

The HMAA8GR7AJR4N-XNT8AD is a 64GB DDR4-3200 RDIMM engineered for enterprise servers. Four critical features mitigate real-world risks. ECC corrects single-bit errors silently, preventing data corruption in transactional databases and virtual machine memory states—an error you would never detect until a record is wrong. The registered buffer eliminates signal noise on heavily populated memory channels, letting you fill all DIMM slots for dense virtualization hosts without stability concerns. Its dual-rank x4 construction allows parallel access across ranks, delivering higher effective bandwidth to in-memory databases like SAP HANA or Redis, where each microsecond of latency matters. Operating at 3200MT/s, the module balances speed and capacity, keeping the CPU pipeline saturated during peak consolidation workloads. For your infrastructure, this means zero silent data corruption, effortless scaling to terabytes of RAM, and the reliability to run round-the-clock business services with absolute confidence.

Endurance & Reliability

General Virtualization
For virtualized environments hosting multiple VMs, populate at least one DIMM per memory channel to maximize bandwidth. A typical dual-socket server with 8 channels per CPU benefits from 8 identical 64 GB RDIMMs, delivering 512 GB total capacity and balanced NUMA performance. Avoid mixing ranks or capacities to maintain uniform latency.

In-Memory Database
In-memory databases demand large, low-latency capacity and absolute data integrity. Deploy the 64 GB dual-rank x4 RDIMMs across all channels—e.g., 16 modules for 1 TB in a 2-socket server—to leverage rank interleaving and ECC. Keep CAS latency uniform at CL22 and ensure 1.2 V operation for thermal stability under sustained loads.

High-Performance Computing (HPC)
HPC workloads prioritize memory bandwidth and reliability. Populate every memory channel with one 64 GB RDIMM to achieve peak 3200 MT/s throughput per channel. For dense nodes, consider 12 or 16 modules per server, matching the dual-rank design to benefit from bank-group parallelism. Registered ECC is essential for long-running simulations where silent data corruption is unacceptable.

Verified Compatibility

This DDR4-3200 ECC Registered RDIMM has been rigorously tested and verified compatible with servers like Dell PowerEdge R760, HPE ProLiant DL380 Gen10, Lenovo ThinkSystem SR650, Cisco UCS C240 M5, Fujitsu RX4770 S7A2R840X-NT8AD.

FAQ