Micron MTA9ASF51272PZ-2G3B1 4GB DDR4 RDIMM 2400MT/s | Reliable ECC RAM

General

Engineer's Note

This DDR4-2400 Registered ECC DIMM is purpose-built for server platforms that demand data integrity and 24/7 reliability, making it ideally suited for virtualization, in-memory databases, and enterprise workloads where memory errors are unacceptable. The registered signal type stabilizes high-capacity configurations by reducing electrical load on the memory controller, while ECC actively corrects single-bit errors and the single-rank x8 organization optimizes latency and thermal performance for dense multi-DIMM deployments.

Technical Specs & Insights

1. Registered signal buffering stabilizes high-density memory arrays, ensuring consistent uptime for virtualization hosts running dozens of VMs without signal integrity drift.
2. ECC error correction silently intercepts and repairs single-bit errors, preserving data accuracy essential for financial ledgers, inventory databases, and scientific computations.
3. DDR4 memory technology shifts the performance-per-watt curve, allowing modern server racks to pack greater compute density without exceeding power or cooling budgets.
4. 2400MHz transfer rate provides a balanced throughput sweet spot for mid-tier enterprise workloads, keeping response times low during concurrent user spikes.
5. 1.2V ultra-low voltage shrinks overall server energy draw, directly lowering total cost of ownership across hyperscale deployments through reduced electricity and thermal management overhead.

Why These Specs Matter

As a server-class Registered DIMM, the MTA9ASF51272PZ-2G3B1 is engineered for data centers where reliability and uptime are not merely desirable—they are mandatory. The module’s ECC capability silently corrects single-bit memory errors, which directly prevents silent data corruption in financial transaction logs or hypervisor memory spaces; without it, a random cosmic particle could flip a bit and crash a virtual machine or mangle a database index with no warning. Its registered architecture buffers address and command signals, stabilizing the memory bus when populating all channels in a virtualization cluster—this means you can deploy dozens of VMs per host without performance degradation or unpredictable reboots under heavy consolidation loads. With a single-rank x8 organization, the 4 GB capacity delivers consistent and predictable bandwidth, a critical advantage for in-memory databases like Redis or SAP HANA that demand uniform latency spikes. Lastly, the 1.2 V DDR4 design slashes power consumption per DIMM, reducing both operating costs and thermal stress in dense rack deployments, so a full-scale deployment remains stable and energy-efficient 24/7. These four pillars work in concert to keep your data accurate, your services available, and your total cost of ownership under control where it matters most.

Endurance & Reliability

General Virtualization
This 4GB DDR4-2400 ECC Registered DIMM is suited for entry-level virtualization hosts where total memory is built from multiple identical modules. For hypervisors running lightweight VMs, populate all channels symmetrically—install six or eight of these modules in a balanced configuration to ensure maximum memory bandwidth and reliable error correction. Avoid mixing ranks or capacities to maintain stable NUMA performance.

In-Memory Database
In-memory databases demand large capacity and low latency, so a single 4GB RDIMM is only a building block. Deploy a fully populated server using numerous identical 4GB RDIMMs to reach the required memory footprint while leveraging ECC to protect data integrity. To optimize throughput, fill each memory channel with identical single‑rank x8 modules and keep CAS latency (CL17) consistent across all DIMMs.

HPC
For HPC clusters running tightly-coupled parallel workloads, memory configuration must balance capacity per node and bandwidth. Use sets of these 4GB Registered DIMMs to populate all memory channels uniformly on each compute node, achieving optimal sustained bandwidth. Standardize on this single‑rank module across the cluster to simplify sparing, guarantee identical timing parameters, and avoid performance variations caused by mixed DIMM types.

Verified Compatibility

Validated server memory. Compatible with Dell PowerEdge R740, HPE ProLiant DL380 Gen10, Lenovo ThinkSystem SR650.

FAQ