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| Product Type | Memory Module |
|---|---|
| Compliance Standards | RoHS |
| Memory Capacity | 4 GB |
| Memory Technology | DDR3 |
| Product Voltage | 1.35V |
| RAM Speed | 1333MHz |
| RAM Standard | DDR3-1333/PC3-10600 |
| Error Identifying | ECC |
| Signal Type | Registered |
| Column Access Strobe (CAS) | CL9 |
| Rank | Dual Rank x8 |
| Quantity of Pins | 240-pin |
| RAM Genre | RDIMM |
This Micron 4GB DDR3-1333 RDIMM operates at a low 1.35V and leverages registered ECC with a dual-rank x8 organization, delivering robust signal integrity and single-bit error correction essential for virtualized environments and in-memory database workloads. Its 240-pin registered architecture and CL9 latency ensure stable, validated operation in entry-level servers where data reliability and power efficiency must coexist.
1. ECC protection detects and corrects single-bit errors on the fly, safeguarding data integrity in financial transaction servers where memory faults could silently corrupt critical records.
2. Registered signal buffering stabilizes high-capacity memory configurations, enabling dense virtualization hosts to scale up reliably without compromising command address integrity.
3. Dual Rank x8 organization amplifies bank-level parallelism, sustaining throughput on database servers that juggle hundreds of concurrent queries and large in-memory caches.
4. The 1.35V low-voltage design shrinks the power footprint of rack-scale deployments, directly lowering both electricity costs and cooling demands in always-on data centers.
5. PC3-10600 transfer rate delivers over ten gigabytes per second of bandwidth, keeping latency-sensitive enterprise workloads like real-time analytics responsive under load.
Judging by its 240-pin RDIMM form factor, ECC support, and registered signal type, the MT18KSF51272PDZ-1G4D1 is unequivocally server memory. In the data center, the four defining characteristics of this 4GB DDR3-1333 module translate directly into operational resilience and cost efficiency.
The ECC feature is a non-negotiable safeguard. In a virtualization cluster hosting dozens of VMs, a single bit-flip caused by background radiation can crash a guest operating system or corrupt a transaction in an in-memory database like Redis. ECC automatically detects and corrects single-bit errors, meaning your financial batch processing or user session states stay accurate without silent data corruption creeping in. Meanwhile, the registered interface buffers the address and control signals, so you can populate all 24 DIMM slots on a dual-processor board without signal degradation. For a database server running large in-memory tables, this translates to massive, stable capacity that won’t buckle under constant read-write storms. The dual-rank x8 organization further interleaves memory banks, giving the memory controller overlapping access patterns that lift effective bandwidth during sustained query execution. Finally, the 1.35V low-voltage design reduces thermal load and power draw across a fleet of racks; in a 24/7 co-location environment, that modest voltage reduction compounds into significant cooling savings and extends component lifespan. This memory doesn’t just meet a spec sheet—it underwrites the uptime and predictable performance your critical workloads demand.
General Virtualization
For cost-effective virtualization, install six to eight 4GB registered DIMMs per processor, yielding 24–32GB. Distribute modules equally across memory channels to maintain balanced performance, and leverage the low 1.35V voltage for energy efficiency in dense server farms. The ECC protection guards against data corruption during live migration.
In-Memory Database
To maximize in-memory dataset size, fill every available DIMM slot with these 4GB ECC RDIMMs. A dual-socket server can accommodate 128GB or more, providing robust error protection and capacity for real-time analytics workloads. Use identical modules in all channels to ensure predictable latency and interleaving.
High-Performance Computing (HPC)
HPC workloads require maximum memory bandwidth. Populate only one dual-rank DIMM per channel to sustain the full 1333MHz speed; adding a second module per channel may force a downgrade to 1066MHz. Balance this by selecting the minimal number of modules needed for your problem size, keeping the one-DIMM-per-channel rule to deliver consistent per-core throughput.
Server RDIMM compatibility: rigorously tested with Dell PowerEdge R720, HP DL380p G8, IBM x3650 M4.
Q: Can I mix this MT18KSF51272PDZ-1G4D1 with other memory modules of different brands or speeds?
A: Mixing different brands or speeds with this 4GB DDR3-1333 ECC RDIMM is not recommended. It may cause signal integrity issues or system instability. For reliable operation, always populate identical part numbers in the same server channel.
Q: Is this memory compatible with my system?
A: This RDIMM is designed for servers using Intel Xeon or AMD Opteron platforms that support DDR3 ECC Registered memory at 1333MHz. Please confirm your motherboard or server model supports 240-pin 1.35V registered DIMMs.
Q: What is the recommended DIMM population order for optimal performance?
A: Populate identical modules per channel, starting with the first slot (usually DIMM_A1 or DIMM_1A). For dual-socket servers, balance memory across CPU memory controllers. Always consult your server's platform guide for specific slot numbering and rank interleaving rules.
Q: Does this module support overclocking or XMP profiles?
A: No. As an enterprise-class ECC Registered DIMM, it adheres strictly to JEDEC DDR3-1333 standards. Overclocking and XMP are not supported, ensuring maximum data integrity and stability in mission-critical server environments.
Q: What warranty and typical failure rate can I expect?
A: This module includes a 1-year warranty. Typical failure rates are extremely low, well below 0.1% annually, due to rigorous production testing. For datacenter deployments, proactive sparing is recommended to prevent unplanned downtime.