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| Product Type | Memory Module |
|---|---|
| Memory Capacity | 4 GB |
| Memory Technology | DDR4 |
| Product Voltage | 1.2V |
| RAM Speed | 2666MHz |
| RAM Standard | DDR4-2666/PC4-21300 |
| Error Identifying | ECC |
| Signal Type | Registered |
| Column Access Strobe (CAS) | CL19 |
| Rank | Single Rank x8 |
| Quantity of Pins | 288-pin |
| RAM Genre | RDIMM |
This 4GB DDR4-2666 Registered ECC RDIMM, featuring a single-rank x8 organization and CL19 latency, is tailored for entry-level server platforms running virtualization or light in-memory database workloads where data integrity and reliable signal integrity are paramount. Its registered signal buffering and ECC error correction maintain stable operation under sustained load, while the 1.2V low-power design aids thermal management in dense rack deployments.
1. ECC detects and corrects single-bit memory errors in real time, eliminating silent data corruption for financial transactions and critical database operations.
2. Registered signal buffering decouples electrical loading, allowing fully populated memory channels in multi-socket servers without compromising signal integrity.
3. The 2666 MT/s data rate supplies enough aggregate throughput to keep multiple virtual machines fed, preventing memory bandwidth saturation under consolidation workloads.
4. Single Rank x8 organization streamlines command scheduling and reduces access latency, which accelerates in-memory caching and real-time analytics queries.
5. A 1.2V operating voltage curbs power draw per DIMM, substantially lowering the overall energy and cooling burden in dense rack-scale deployments.
Designed specifically for server and enterprise environments, the Micron MTA9ASF51272PZ-2G6E1 RDIMM transcends basic memory functionality to become a pillar of infrastructure reliability. Its ECC technology actively corrects single-bit errors, silently preventing cosmic-ray-induced data corruption that could crash a virtualization cluster or poison financial transactions in an in-memory database like Redis. The registered signal buffer is equally critical: it redrives address and command signals, stabilizing the memory bus when multiple DIMMs per channel are deployed—exactly the scenario in a dense VMware ESXi host running dozens of virtual machines, where signal degradation would otherwise cause unpredictable system halts. Operating at a true 2666MHz with a PC4-21300 bandwidth, this single-rank x8 module delivers consistently low latency and high throughput without the inter-rank access conflicts that can penalize dual-rank designs in write-intensive workloads. For a SAP HANA instance or a real-time analytics platform, that translates to faster query responses and smoother transaction processing. With a 1.2V operating voltage, it also helps drive down power consumption across a fully populated rack, lowering cooling demands in 24/7 data centers where every watt matters. Ultimately, this module transforms a simple spec sheet into a guarantee of uptime and performance where it counts most.
General Virtualization
For moderate-density VM hosts, populate all memory channels with this 4GB RDIMM to build cost-effective capacity. A dual-socket server with 12 DIMM slots per CPU yields 96GB using 24 modules, comfortably running 20–30 light VMs. Stick to identical single‑rank x8 DIMMs per channel to maintain balanced load and reliable ECC protection.
In‑Memory Database
In‑memory databases demand maximum capacity and low latency, making high-density configurations essential. Although each stick is only 4GB, fully loading a 24‑slot server gives 96GB—sufficient for small Redis or Memcached clusters. For larger SAP HANA footprints, pair these RDIMMs in sets of 8 or 16 per socket, ensuring the registered clock driver stabilizes signal integrity under heavy transactional loads.
High‑Performance Computing
HPC workloads benefit from wide memory bandwidth, so prioritize uniform population across all memory channels. Deploy six identical 4GB RDIMMs per CPU in a hexa‑channel platform to achieve 24GB per socket with maximum throughput. The DDR4‑2666 speed and ECC help sustain error‑resilient floating‑point calculations; avoid mixing ranks to prevent speed degradation and maintain consistent CAS latency (CL19) across nodes.
Rigorously tested server DDR4 RDIMM, compatible with Dell PowerEdge R740, HPE ProLiant DL380 Gen10, Lenovo ThinkSystem SR650.
Q: Can I mix this MTA9ASF51272PZ-2G6E1 with other memory modules of different brands or speeds?
A: Mixing RDIMMs from different brands or speeds is not recommended. For server stability, always use identical modules with the same Micron part number, rank, and speed to avoid BIOS conflicts and signal integrity issues.
Q: Is this memory compatible with my system?
A: This DDR4-2666 ECC Registered DIMM is compatible with Intel Xeon Scalable and AMD EPYC platforms that support 1.2V RDIMMs. Please verify your server board’s Qualified Vendor List (QVL) for the exact MTA9ASF51272PZ-2G6E1.
Q: What is the recommended DIMM population order for optimal performance?
A: Populate DIMMs starting with the white or blue slots per channel, typically A1/B1 first for the first rank. Follow your server’s slot numbering guide to maintain balanced memory interleaving and avoid performance penalties.
Q: Does this module support overclocking or XMP profiles?
A: No. This is a JEDEC-compliant server RDIMM running at 2666MHz CL19. It does not support overclocking or XMP; it is designed for maximum reliability and stability in mission-critical environments.
Q: What warranty and typical failure rate can I expect?
A: This Micron module includes a one-year warranty. As an enterprise-class RDIMM built with rigorously screened DRAM, its typical failure rate is very low, often reflected in an annualized failure rate below 0.2%.