General

Engineer's Note

Designed as a server-class Registered DIMM with ECC, this Micron MTA9ASF51272PZ-2G3B module excels in virtualization, in-memory databases, and any deployment demanding uncompromising data integrity. Its single-rank x8 organization combined with registered signal buffering ensures superior electrical stability and consistent 2400 MT/s operation at a low CL17 latency, making it a reliable choice for dense rack and blade servers.

Technical Specs & Insights

1. Error-correcting code protection silently detects and corrects single-bit memory faults, preserving data integrity in mission-critical server workloads where uptime is non-negotiable.
2. The register buffer stabilizes signal integrity across high-density memory configurations, enabling reliable operation in multi-DIMM server boards under heavy load.
3. A 2400 MT/s transfer rate delivers ample memory bandwidth for moderate virtualization hosts, ensuring smooth I/O throughput without bottlenecking modern multi-core server CPUs.
4. DDR4’s low operating voltage reduces thermal stress and power draw in densely packed server racks, directly lowering data center cooling costs.
5. Single-rank organization minimizes electrical loading on the memory channel, allowing faster address strobe timing that benefits latency-sensitive caching and database applications.

Why These Specs Matter

This Micron DDR4-2400 Registered DIMM is engineered specifically for server platforms where uptime and data fidelity are non-negotiable. Its four defining characteristics translate directly into operational resilience for your infrastructure. The ECC function is your safeguard against silent data corruption; in a virtualization cluster hosting dozens of VMs, a single uncorrected bit flip can cascade into hypervisor failures, making ECC a frontline defense for workload continuity. The registered signal buffer decouples the module from the memory bus, enabling your system to populate all channels without signal degradation—critical when scaling in-memory databases like SAP HANA or Redis, where every nanosecond of latency impacts transaction throughput. Operating at a frugal 1.2 volts, the module reduces thermal load and cumulative power draw across a rack, which lowers both energy costs and cooling requirements in a colocation facility. Finally, the 2400MHz speed on a single-rank x8 design provides balanced bandwidth for moderate workloads, ensuring predictable performance without overprovisioning. For dedicated hosting nodes or edge servers demanding unwavering stability, this RDIMM delivers enterprise-grade reliability in a compact 4GB footprint.

Endurance & Reliability

General Virtualization
For basic virtualization hosts, deploy six to eight of these 4 GB RDIMMs across all memory channels to achieve 24–32 GB of available capacity, ensuring balanced interleaving for optimal throughput. Configure DIMMs in identical sets per memory channel to maintain NUMA locality and avoid performance penalties on multi-socket servers. This layout comfortably supports a dozen lightweight VMs while leaving headroom for memory overcommitment.

In-Memory Database
In-memory databases thrive on capacity and low latency, so populate every DIMM slot with this 4 GB ECC registered module to maximize total RAM under a given CPU. For a single-socket server with eight channels, a fully loaded configuration delivers 32 GB, suitable for moderate Redis or Memcached instances. Always use identical single-rank DIMMs across all channels to prevent clock skew and guarantee data integrity under heavy write loads.

High-Performance Computing
HPC workloads demand maximum memory bandwidth, so install one DIMM per channel across all available channels—typically six or eight modules—to enable full-speed interleaving. This 24–32 GB setup keeps frequently accessed datasets in RAM while feeding the CPU with consistent, low-latency data streams. Pair these RDIMMs with a matching set of spare modules to maintain fault tolerance during long-running compute jobs.

Verified Compatibility

Stringently tested server memory, verified compatible with Dell PowerEdge R760, HPE ProLiant DL380 Gen10, Lenovo ThinkSystem SR650.

FAQ