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| Product Type | Memory Module |
|---|---|
| Compliance Standards | RoHS |
| Memory Capacity | 4 GB |
| Memory Technology | DDR3 |
| Product Voltage | 1.5V |
| RAM Speed | 1333MHz |
| RAM Standard | DDR3-1333/PC3-10600 |
| Error Identifying | ECC |
| Signal Type | Unbuffered |
| Column Access Strobe (CAS) | CL9 |
| Rank | Dual Rank x8 |
| Quantity of Pins | 240-pin |
| RAM Genre | UDIMM |
This UDIMM with ECC is a server-class module ideal for entry-level servers and small business NAS systems running virtualization or memory-intensive databases where data integrity is critical. Its dual-rank x8 organization improves memory bandwidth utilization, and the unbuffered ECC design with CL9 latency delivers a balance of error correction and responsive access for stable 24/7 operation.
1. ECC protection silently corrects single-bit errors in real time, preventing silent data corruption that could jeopardize financial transactions or database integrity in always‑on small office servers.
2. Four gigabyte capacity delivers a focused memory footprint ideal for lightweight virtualization, letting a single‑socket host comfortably run multiple containerized services without oversubscription.
3. Unbuffered signal design eliminates register latency, giving cost‑sensitive entry‑level servers a responsive edge for latency‑critical tasks like domain authentication or caching.
4. Dual‑rank x8 organization interleaves internal banks to sustain higher bandwidth utilization, which keeps file‑sharing throughput steady when multiple clients stream data simultaneously.
5. 1333 MT/s speed supplies consistent, predictable bandwidth that smoothly handles legacy ERP workloads and background backup jobs without becoming the I/O bottleneck.
The Micron MT18JSF51272AZ-1G4M1ZG is a 4GB DDR3-1333 Unbuffered ECC UDIMM built specifically for entry-level servers and workstations where every bit of data integrity matters. In a virtualized cluster running multiple VMs on a hypervisor, a single undetected memory bit-flip can silently corrupt a virtual disk or crash a guest without warning. The onboard ECC instantly corrects single-bit errors and detects multi-bit faults, turning memory from a blind spot into a hardened line of defense for your critical services.
Its dual-rank x8 organization drives interleaved access that noticeably lifts effective bandwidth. When you deploy an in-memory database like Redis or Memcached, this translates directly into faster key-value lookups under concurrent load, reducing tail latency for real-time analytics. Because the module is unbuffered, command-to-DRAM latency stays minimal compared to registered alternatives, giving you snappier response in light-to-moderate workloads where every cycle counts – think a small business file server handling simultaneous document edits or a build server churning through continuous integration.
The standard 1.5V operating voltage and 240-pin UDIMM form factor ensure plug-and-play compatibility across a wide range of Intel Xeon E3 and AMD Opteron platforms. For the IT manager, this means you can safeguard data consistency in a cost-effective manner without over-provisioning hardware, relying on proven DDR3 technology that delivers the right balance of reliability, responsiveness, and value exactly where your everyday workloads run.
General Virtualization
For light virtualization hosts, populate all memory channels symmetrically with these 4GB ECC UDIMMs to reach 16–32GB total capacity. Install two identical modules per channel to enable dual-channel interleaving while maintaining error correction for multiple virtual machines.
In-Memory Database
Maximize capacity by filling every available DIMM slot; an 8-slot server yields 32GB, sufficient for small in-memory datasets. The dual-rank x8 configuration boosts bank-level parallelism—install modules in matched pairs per channel to improve transaction throughput and data integrity.
High-Performance Computing (HPC)
Achieve peak bandwidth by placing one identical 4GB module per memory channel in a fully balanced, symmetric layout. The 1333MHz clock and dual-rank design provide uniform low-latency access critical for parallel workloads. For many node-level tasks, 16–32GB total capacity from these ECC UDIMMs is adequate when combined with fast interconnects.
Rigorously tested for server compatibility with Dell PowerEdge T110 II, HP ProLiant ML310e Gen8, Lenovo ThinkServer TS140.
Q: Can I mix this MT18JSF51272AZ-1G4M1ZG with other memory modules of different brands or speeds?
A: Mixing brands or speeds is not recommended for server environments. All DIMMs should be identical to ensure ECC integrity and stable operation under consistent 1333MHz, CL9, 1.5V parameters.
Q: Is this memory compatible with my system?
A: This ECC Unbuffered DIMM is designed for Intel Xeon E3 series or AMD Ryzen AM3+ platforms that accept 240-pin DDR3-1333 UDIMMs. Verify your board's support for 1.5V ECC modules.
Q: What is the recommended DIMM population order for optimal performance?
A: Populate identical modules per channel starting from the slot farthest from the CPU. For dual-channel platforms, install matching pairs in correspondingly colored slots to enable ECC scrubbing features.
Q: Does this module support overclocking or XMP profiles?
A: No. Server-grade ECC UDIMMs adhere to JEDEC standard DDR3-1333/PC3-10600 specifications. They do not support XMP or overclocking, prioritizing data integrity and 24/7 reliability.
Q: What warranty and typical failure rate can I expect?
A: This module comes with a 1-year warranty. Engineered with ECC and tight CL9 timings, its AFR is typically under 0.5% in compliant environments, ensuring long-term mission-critical stability.