General

Engineer's Note

Designed specifically for server-class platforms, this 64 GB DDR4-3200 Registered DIMM with ECC is ideal for memory-intensive workloads such as virtualization, in-memory databases, and mission-critical enterprise applications. Its dual-rank x4 organization maximizes interleaving for higher sustained bandwidth, while the registered signal type and CL22 latency ensure robust signal integrity and data reliability in multi-DIMM configurations.

Technical Specs & Insights

1. 64GB capacity per module empowers server builders to achieve extreme memory density within limited DIMM slots, directly boosting virtual machine counts and scaling in-memory databases without sacrificing front-side real estate.
2. ECC scrubbing intercepts and fixes bit errors in real time, preserving transaction accuracy and system uptime for mission-critical financial, scientific, and authentication services.
3. Registered signal buffering decouples the memory interface from heavy electrical loads, maintaining rock-steady command integrity across fully populated multi-rank configurations essential for enterprise virtualization hosts.
4. Dual rank x4 organization enables bank-level parallelism, keeping data pipes saturated and minimizing page-conflict stalls during high-concurrency workloads like large-scale SaaS backends.
5. 3200 MHz clock speed widens the bandwidth pipe, dramatically accelerating data-hungry operations such as real-time analytics, in-memory OLAP, and dense container orchestration.

Why These Specs Matter

In the data center, silent memory corruption can instantly derail transactions and destabilize virtual machines. The HMAA8GR7AJR4N-XN, a 64GB DDR4-3200 Registered DIMM, integrates ECC to correct single-bit errors and detect multi-bit faults, protecting hypervisor clusters and in-memory databases from corruption that silently alters records or crashes VMs. In dense virtualization hosts with every memory channel populated, its registered buffer maintains clean signal timing, preventing the boot failures and throttling that plague unbuffered designs. The dual-rank x4 architecture and 64GB density accelerate in-memory platforms like Redis or SAP HANA by interleaving access, slashing latency and keeping massive datasets out of slow storage. At 3200MT/s on just 1.2V, it pushes generous bandwidth for heavy concurrent queries without inflating your power bill. This module redefines server reliability: you gain higher VM density, uncompromised data integrity, and database response times that stay consistently low even under peak load.

Endurance & Reliability

Capacity Planning Guide for 64GB DDR4-3200 ECC RDIMM (Dual-Rank x4).

General Virtualization
For dense VM farms, install two DIMMs per channel (2DPC) on a dual-socket server. Filling all eight channels per CPU with these 64GB RDIMMs yields 32 modules and 2TB total, albeit at 2933 MT/s. This mass capacity supports hundreds of virtual machines while keeping cost per GB low. Ensure identical DIMM population across sockets for NUMA balance and failover resilience.

In-Memory Database
For in-memory DB workloads, prioritize latency by using one DIMM per channel (1DPC) across 16 channels (dual-socket), reaching 1TB at the full 3200 MT/s. This configuration avoids signal-impairing dual-rank stacking per channel. If the working set exceeds 1TB, move to 2DPC for 2TB, accepting a drop to 2933 MT/s; always populate channels symmetrically to preserve access uniformity.

High-Performance Computing (HPC)
HPC applications demand maximum bandwidth. Populate one 64GB RDIMM per channel for 1TB at 3200 MT/s, leveraging the full bus speed. The dual-rank x4 dies deliver strong throughput. For capacity-heavy simulations, consider 2DPC to achieve 2TB, but benchmark carefully—dual-rank per channel already saturates the electrical load. Maintain balanced rank count across all channels for consistent MPI collective performance.

Verified Compatibility

Rigorously tested SK hynix 64GB DDR4-3200 RDIMM, compatible with Dell PowerEdge R750, HPE DL380 Gen10 Plus, Lenovo SR650 V2.

FAQ