General

Engineer's Note

Designed specifically for server-class platforms, this Samsung DDR3-1866 registered ECC module delivers reliable performance for virtualized environments and memory-intensive databases where data integrity is paramount. The Registered signal type ensures stable operation across multiple DIMMs, while its Single Rank x4 organization helps maintain low latency and efficient signal integrity in dense rack configurations.

Technical Specs & Insights

1. ECC protection actively corrects single-bit memory errors in real time, preserving data accuracy essential for financial transaction processing and long-running database operations.
2. Registered buffering isolates the memory controller from electrical loading, enabling fully populated multi-slot configurations with steady signal integrity for large-scale virtualization hosts.
3. DDR3-1866 throughput supplies dependable bandwidth headroom, acceling content delivery and in-memory caching under concurrent user loads.
4. Single Rank x4 organization lowers both bus loading and access latency, delivering snappier response in latency-sensitive microservices and dedicated hosting environments.
5. Compact module capacity reduces per-node power consumption, offering a cost-efficient building block for dedicated management controllers and lightweight edge server deployments.

Why These Specs Matter

Based on its RDIMM form factor, ECC, and Registered signal type, this is unmistakably server-grade memory, engineered for mission-critical workloads where downtime is measured in lost revenue. For your virtualized cluster running dozens of VMs, the ECC feature is your silent guardian—it continuously detects and corrects single-bit errors caused by background radiation, preventing silent data corruption that could crash a production database without warning. The registered buffer is what makes massive capacity possible; it isolates the memory controller from the electrical load, allowing you to populate every slot across all channels for maximum RAM density while maintaining rock‑solid stability, a non-negotiable need for hypervisor hosts. Meanwhile, the 1866 MHz clock speed provides the bandwidth to feed modern multi‑core Xeon processors, keeping heavy in‑memory database transactions responsive under load. And the single‑rank x4 organization is not just a technical label—it optimizes command bus efficiency and reduces overall heat, which directly benefits latency‑sensitive applications like Redis caching or real‑time financial analysis. Together, these four attributes transform this 4 GB DDR3 module into a reliable building block for hyper‑converged infrastructure, ensuring your services remain error‑free around the clock.

Endurance & Reliability

General Virtualization
Populate all memory channels identically with this 4 GB registered DIMM to balance capacity and bandwidth. For a dual‑socket server with triple‑channel architecture, install six modules per CPU (24 GB total per node), which comfortably supports 10–15 light virtual machines. Use one DIMM per channel to maintain the full 1866 MT/s speed and avoid performance penalties.

In‑Memory Database
Maximize total capacity by fully populating every available slot while keeping one DIMM per channel. In a typical 24‑slot server, twenty‑four 4 GB RDIMMs deliver 96 GB, enough for moderate Redis or Memcached datasets. Avoid mixing ranks; stick with these single‑rank modules to preserve low latency and signal integrity under constant high‑throughput access.

High Performance Computing
Configure one DIMM per memory channel to sustain peak bandwidth for HPC jobs. Eight modules (32 GB) across a dual‑processor system with quad‑channel memory provide a balanced 4 GB per core on a 16‑core machine. Use identically specced RDIMMs in symmetric slots to guarantee uniform memory access times and stable operation during tightly synchronized parallel runs.

Verified Compatibility

Validated for servers: rigorously tested, compatible with Dell PowerEdge R720, HP DL380p Gen8, Lenovo x3650 M4.

FAQ