General

Engineer's Note

With ECC and unbuffered design, this 4 GB DDR3-1600 UDIMM is tailored for entry-level servers and workstations where data integrity is critical, making it ideal for light virtualization, file services, or memory-sensitive embedded applications. Its single-rank x8 organization and low 1.35 V operating voltage enhance signal stability and reduce power consumption, while the CL11 latency helps maintain responsive performance in always-on environments.

Technical Specs & Insights

1. ECC protection silently corrects single-bit memory errors, preserving data integrity for financial transactions or critical database entries that demand zero corruption.
2. Unbuffered architecture slices through access latency, giving lightweight virtualization hosts and microservers faster request-to-response cycles without the overhead of register chips.
3. The energy-efficient low-voltage design curbs power consumption per stick, directly lowering thermal strain and electricity costs in dense server deployments.
4. DDR3-1600 frequency delivers a stable bandwidth envelope suitable for consistent request handling in web serving and small-scale content caching environments.
5. A moderate module capacity allows cost-effective node provisioning for containerized workloads where total memory is distributed across many modest but reliable units.

Why These Specs Matter

The Micron MT9KDF51272AZ-1G6P1 is a DDR3-1600 UDIMM engineered for entry-level servers and workstations where data integrity, not just raw throughput, is the priority. In a virtualisation cluster hosting a CRM and file server on a single node, a single undetected bit flip in the hypervisor’s memory can corrupt a virtual disk and cascade into hours of recovery. This module’s ECC functionality actively corrects single-bit errors and detects multi-bit faults, turning what would be a crash or silent data loss into a corrected, logged event—your VMs stay up and your data remains consistent. For an in-memory database like Redis or a financial transaction cache, that same protection ensures a flipped bit doesn't become a wrong price or a lost order. Meanwhile, the 1.35V low-voltage operation directly lowers thermal load and power drain in small offices or colocation racks where cooling headroom is tight and every watt impacts the electricity bill. At 1600MHz with a CAS latency of 11 and a single-rank x8 organisation, it delivers predictable, low-latency bandwidth for mixed workloads, letting a departmental server handle concurrent remote desktop sessions and light database queries without memory contention throttling user productivity. Because it is an unbuffered DIMM, it maintains lower access latency than registered alternatives, which matters when a workstation renders 3D models and needs every millisecond of responsiveness—yet you never sacrifice the safety net of error correction.

Endurance & Reliability

General Virtualization
Use multiple MT9KDF51272AZ-1G6P1 modules to build a cost‑effective, low‑power virtualization host. A six‑module configuration (24 GB total) allows dual‑channel operation on common single‑socket platforms, comfortably supporting 10–15 light VMs. For higher density, populate all eight DIMM slots for 32 GB, ensuring 1.35 V operation keeps thermal and energy overhead low.

In‑Memory Database
In‑memory workloads demand maximal capacity and error resilience, both delivered by this ECC UDIMM. Install a full 32 GB kit (eight identical 4 GB sticks) across all memory channels to reach the platform’s limit while maintaining data integrity. This setup suits small‑scale Redis or Memcached instances, where every gigabyte directly translates into larger working sets and faster query responses.

High‑Performance Computing
HPC per‑node memory sizing focuses on bandwidth and correct channel population. Pair six or eight modules in a dual‑channel or quad‑channel configuration to saturate memory controllers; for dual‑socket boards, balance DIMMs symmetrically across CPUs. The 1.35 V rating reduces aggregate power draw in dense clusters, making these UDIMMs a smart choice for sustained floating‑point and simulation jobs that require modest capacity but high reliability.

Verified Compatibility

Rigorously tested server memory. Compatible with Dell PowerEdge R210 II, HP ProLiant MicroServer Gen8, Lenovo ThinkServer TS140.

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