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| Product Type | Memory Module |
|---|---|
| Compliance Standards | RoHS |
| Memory Capacity | 32 GB |
| Memory Technology | DDR3 |
| Product Voltage | 1.5V |
| RAM Speed | 1866MHz |
| RAM Standard | DDR3-1866/PC3-14900 |
| Error Identifying | ECC |
| Signal Type | Registered |
| Column Access Strobe (CAS) | CL13 |
| Rank | Quad Rank x4 |
| Quantity of Pins | 240-pin |
| RAM Genre | RDIMM |
This Micron 32GB DDR3-1866 Registered ECC module is designed for legacy server platforms requiring maximum memory capacity and data integrity, making it ideal for virtualization hosts, in-memory databases, and mission-critical enterprise applications. Its Quad Rank x4 configuration enables ultra-high density per channel while the Registered signal type ensures stable multi-DIMM operation, and ECC protection delivers single-bit error correction to maintain system uptime under heavy 24/7 loads.
1. 32GB capacity per module enables higher VM density per server node, reducing the need for physical hosts in virtualized environments.
2. ECC protection detects and corrects single-bit memory errors in real time, safeguarding transactional data integrity for databases and financial workloads.
3. Registered signal buffering stabilizes command and address lines across fully populated server boards, ensuring reliable operation under heavy multi-DIMM configurations.
4. Quad Rank x4 organization maximizes memory bandwidth utilization by interleaving access across ranks, sustaining throughput during simultaneous analytics queries.
5. 1866MHz clock speed delivers elevated channel bandwidth, accelerating in-memory caching and reducing latency for frequently accessed enterprise datasets.
The Micron MT72JSZS4G72LZ-1G9E2A7 is a 32GB DDR3-1866 Registered DIMM built specifically for enterprise servers, where every computational error carries a financial cost. This module’s four defining characteristics translate directly into operational confidence for IT architects. First, ECC actively corrects single-bit memory errors that cosmic radiation or electrical noise can introduce; in an in-memory database like SAP HANA, an undetected bit flip could corrupt financial records, yet this module’s error correction ensures transactional integrity around the clock. Second, the registered signal buffer decouples the memory controller from the electrical load of the Quad Rank x4 organization. In a fully populated virtualization cluster running dozens of VMware guests, this buffering stabilizes high-density configurations, allowing you to pack 384GB or more into a single server without random lockups that lead to costly tenant downtime.
Third, the Quad Rank x4 design itself matters because it doubles the rank count compared to dual-rank modules, delivering stronger interleaved access patterns that improve database cache hit rates under heavy concurrency. When a Redis instance serves millions of keys per second, that extra bandwidth keeps latency flat. Finally, the genuine DDR3-1866 speed ensures sufficient throughput for legacy but still mission-critical platforms, where upgrading to DDR4 is not an option but where response times must remain competitive. Together, these features mean fewer silent data corruptions, denser virtual machine consolidation, and predictable performance for memory-bound workloads—exactly what enterprises demand from their aging but indispensable server fleets.
General Virtualization
Deploy six to eight of these 32 GB RDIMMs per host to provide 192–256 GB of total capacity, allowing comfortable overcommit ratios for dozens of mixed VMs. Populate at least one DIMM per memory channel to maintain the full 1866 MT/s speed, and leave room for future expansion without sacrificing balanced channel interleaving.
In-Memory Database
Maximize capacity by populating all available slots, even if population of two DIMMs per channel forces a slight speed reduction; typical configurations use eight or more modules for 256 GB and beyond. Enable mirroring or lockstep modes where supported to leverage the ECC and registered design for highest data integrity in latency‑sensitive workloads like Redis or SAP HANA.
High-Performance Computing (HPC)
Fill each memory channel with one 32 GB quad‑rank DIMM to sustain peak bandwidth of 1866 MT/s, delivering 128 GB on a four‑channel platform. Where capacity must scale higher, install two DIMMs per channel for 256 GB and accept a minor frequency drop, as the increased rank interleaving can still benefit throughput‑oriented simulations and computational fluid dynamics jobs.
Rigorously tested DDR3 Registered ECC server memory, compatible with Dell PowerEdge R720, HP ProLiant DL380p Gen8, Lenovo System x3650 M4.
Q: Can I mix this MT72JSZS4G72LZ-1G9E2A7 with other memory modules of different brands or speeds?
A: Mixing is not recommended in servers. Registered ECC modules require identical ranks and timings. Different speeds default to the lowest common denominator, often causing instability or POST failures.
Q: Is this memory compatible with my Intel or AMD server platform?
A: This 32GB DDR3-1866 RDIMM is compatible with select Intel Xeon E5-2600 v2 and AMD Opteron 6300 series platforms. Verify your board supports registered ECC, quad-rank x4, and 1.5V specifications.
Q: What is the recommended DIMM population order for optimal performance?
A: Populate identical quad-rank DIMMs per channel, starting with the farthest blue slot from the CPU. Consult your server's memory configuration guide; balanced channels maximize bandwidth and minimize latency.
Q: Does this module support overclocking or XMP profiles?
A: No. Server-grade Registered ECC memory adheres strictly to JEDEC standards for stability. Overclocking is not supported and would compromise data integrity on mission-critical systems.
Q: What warranty and typical failure rate can I expect?
A: This module includes a one-year warranty. Enterprise-class RDIMMs exhibit an annualized failure rate typically under 0.5%, provided proper cooling and within manufacturer voltage specifications.