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| Product Type | Memory Module |
|---|---|
| Memory Capacity | 64 GB |
| Memory Technology | DDR4 |
| Product Voltage | 1.2V |
| RAM Speed | 3200MHz |
| RAM Standard | DDR4-3200/PC4-25600 |
| Error Identifying | ECC |
| Signal Type | Registered |
| Column Access Strobe (CAS) | CL22 |
| Rank | Dual Rank x4 |
| Quantity of Pins | 288-pin |
| RAM Genre | RDIMM |
This 64GB DDR4-3200 Registered ECC RDIMM is designed specifically for server platforms, making it well-suited for virtualization, in-memory databases, and other mission-critical workloads that demand uncompromising data integrity. The dual-rank x4 configuration combined with registered signaling ensures robust signal stability across high-capacity memory channels, while integrated ECC actively corrects single-bit errors to prevent data corruption in 24/7 operation.
1. Registered signal buffering allows fully populating memory channels without signal degradation, sustaining enterprise uptime in dense multi-socket server deployments.
2. Error-correcting code protection eliminates single-bit soft errors in real time, preserving data accuracy for financial ledgers and long-running scientific computations.
3. Large module capacity dramatically raises memory-per-CPU ratios, letting hypervisors host more virtual machines per node while avoiding disk swap latency.
4. High clocked bandwidth feeds data-hungry analytics engines and in-memory databases, cutting query response times under concurrent user loads.
5. Dual-rank interleaving with wide device access pipelines balances command scheduling, maximizing throughput during sustained multi-threaded workloads.
The HMAA8GR7AJR4N-XNTGAA is a 64GB DDR4-3200 registered DIMM, purpose-built for enterprise servers where every transaction carries financial, operational, or reputational risk. In a dense virtualization cluster hosting dozens of VMs, a single undetected bit-flip from background radiation can corrupt a hypervisor page table and cascade into multi-tenant outages. Its integrated ECC scrubs those errors transparently, preserving data integrity without performance penalties, which directly protects your SLA uptime. For in-memory databases like SAP HANA or Redis clusters, the registered architecture buffers command and address signals, enabling stable population of all 24 DIMM slots per 2U node without signal degradation. This lets you scale to terabytes of low-latency capacity confidently. The dual-rank x4 organization further balances access parallelism and bus loading, sustaining the 3200MT/s bandwidth under heavy OLTP workloads. The 1.2V operating voltage keeps thermals predictable inside constrained chassis, ensuring clock stability even when neighboring CPUs are redlined. Server memory is not a commodity; it is the silent guardian of business continuity, and this module embeds that assurance into every cycle.
General Virtualization
For dense virtualization hosts, this 64GB RDIMM is an ideal building block. A balanced configuration of eight identical modules (512GB total) per dual-socket server, spread evenly across all memory channels, maximizes bandwidth while leaving room for future scaling. Prioritize populating one DIMM per channel to maintain 1 DPC speed, then add a second module per channel if you need to expand capacity without sacrificing excessive latency.
In-Memory Database
In-memory databases like Redis or SAP HANA demand both large capacity and data integrity, making this ECC Registered module essential. Configure a fully populated six or eight-channel platform with multiple 64GB sticks to reach 384GB–512GB, ensuring the working set resides entirely in RAM. Reliability is paramount, so deploy identical part numbers in a balanced layout to guarantee seamless error correction and stable 3200MT/s operation under persistent heavy write loads.
High-Performance Computing (HPC)
HPC clusters benefit from the high memory bandwidth of eight identical 64GB RDIMMs per node, delivering 512GB of capacity with all channels engaged. The dual-rank x4 design and CL22 latency provide the sustained throughput needed for tightly coupled parallel workloads like CFD or molecular dynamics. For large-scale simulations, consider populating all DIMM slots only after verifying the CPU’s rated speed at 2 DPC, tuning the balance between core count and memory bandwidth per job.
Rigorously tested server memory, validated for Dell PowerEdge R760, HPE ProLiant DL380 Gen10, and Lenovo ThinkSystem SR650.
Q: Can I mix this HMAA8GR7AJR4N-XNTGAA with other memory modules of different brands or speeds?
A: Mixing brands or speeds is not recommended for RDIMM servers. It risks signal integrity, disables ECC advantages, and may force all modules to the slowest common JEDEC profile, undermining stability.
Q: Is this memory compatible with my system?
A: This 64GB DDR4-3200 ECC Registered DIMM is designed for server platforms supporting 288-pin RDIMM, such as Intel Xeon Scalable or AMD EPYC 7002/7003 series. Consult your server's qualified vendor list for confirmation.
Q: What is the recommended DIMM population order for optimal performance?
A: Populate identical dual-rank x4 RDIMMs symmetrically across memory channels, usually starting with the farthest slot per channel. Follow your server board's population guide for balanced interleaving and full ECC bandwidth.
Q: Does this module support overclocking or XMP profiles?
A: No. This is a JEDEC-compliant server RDIMM operating at fixed 3200MHz with CL22. XMP and overclocking are not supported; enterprise memory prioritizes signal reliability and error correction over adjustable speeds.
Q: What warranty and typical failure rate can I expect?
A: This Hynix module includes a one-year warranty. Enterprise DDR4 RDIMMs exhibit very low annualized failure rates, with ECC correcting most single-bit errors; catastrophic failures are rare under compliant thermal and voltage conditions.