General

Engineer's Note

Ideal for entry-level virtualization hosts and scale-out memory caching applications, this 4GB DDR4-2400 RDIMM leverages ECC and register logic to maintain data integrity across multiple DIMMs per channel. Its single-rank x8 configuration minimizes electrical loading on the memory bus, enabling stable 2400MT/s throughput at 1.2V with a CL17 latency profile that suits density-focused server builds where deterministic response and reliability outweigh raw bandwidth.

Technical Specs & Insights

1. Embedded ECC mechanism seamlessly catches and corrects single-bit errors, safeguarding data accuracy in long-running, mission-critical server workloads.
2. Register buffering decouples the memory controller from heavy DRAM loads, maintaining command stability across large memory pools required for dense virtualization.
3. The fast DDR4 data rate ensures ample bandwidth for simultaneous VM transactions and real-time in-memory analytics, lifting overall server responsiveness.
4. Energy-efficient voltage supply minimizes thermal dissipation and power bills, a substantial advantage for scale-out data center environments demanding lower TCO.
5. Single Rank x8 topology reduces electrical loading per channel, delivering cleaner signals and higher reliability in fully populated rack server nodes.

Why These Specs Matter

When you’re running a dense virtualization cluster or an in-memory database like Redis, a single uncorrected memory error can silently corrupt data or bring down critical services. The Micron MTA9ASF51272PZ-2G3A2IK is engineered precisely for these workloads. Its ECC technology actively detects and corrects single-bit errors, effectively preventing cosmic-ray-induced data corruption that becomes statistically unavoidable in 24/7 operation. The registered DIMM architecture adds a buffer that stabilizes command and address signals, which is vital when your server bristles with multiple DIMMs per channel—without it, you risk signal degradation, boot failures, or erratic behavior under heavy memory load. Built with a single-ranked x8 organization, this module lowers the electrical load on the memory controller, improving signal integrity and allowing consistent 2400 MHz operation even when populating all slots. That translates into dependable throughput for hypervisor memory overcommit in vSphere environments and for high-volume query caches where latency jitter is simply not an option. It means you maintain data fidelity, system uptime, and predictable performance right where business continuity is non-negotiable.

Endurance & Reliability

General Virtualization
For light to moderate virtualization workloads, a single 4 GB RDIMM is insufficient. Deploy at least four identical modules (16 GB total) per host to comfortably run multiple VMs, leveraging quad-channel memory architectures common in server platforms. If your hypervisor demands memory overcommitment or runs heavier guest operating systems, scale to eight modules (32 GB) for balanced capacity and bandwidth.

In-Memory Database
In-memory databases require both capacity and low latency. A 4 GB DIMM alone is far too small—populate all available channels with these modules, aiming for a minimum of 64 GB (16x 4 GB) to hold meaningful datasets entirely in RAM. Registered ECC memory ensures data integrity during aggressive caching, but consider larger capacity DIMMs if board slots are limited, as these 4 GB sticks will quickly constrain dataset growth.

High-Performance Computing (HPC)
HPC clusters benefit from the reliability of registered ECC memory, but workload scale demands total memory far above 4 GB per node. Install these DIMMs in full channel sets (e.g., 12 or 16 modules) to maximize memory bandwidth per socket, which is critical for parallel simulations and scientific computing. For memory-bound HPC codes, 4 GB modules can be used to populate every slot for maximum aggregate capacity on dual-socket boards, though 8 GB or higher DIMMs are preferred to future-proof the cluster.

Verified Compatibility

Rigorously tested server memory, compatible with Dell PowerEdge R760, HPE ProLiant DL380 Gen10, Lenovo ThinkSystem SR650, and similar systems.

FAQ