General

Engineer's Note

This is a server-class DDR3 RDIMM engineered for legacy enterprise platforms, ideally suited for memory-intensive workloads like virtualization, in-memory databases, and mission-critical applications where data integrity is non-negotiable. Its ECC and registered signal type ensure rock-solid stability in multi-DIMM configurations, while the quad-rank x4 organization maximizes capacity density per channel at the cost of a slightly relaxed CAS latency of 11.

Technical Specs & Insights

1. ECC actively detects and corrects single-bit memory errors, safeguarding financial transactions and database operations against silent data corruption in always-on enterprise servers.
2. Registered buffering minimizes electrical load on the memory controller, allowing fully populated server boards to sustain stable multi-channel throughput under heavy virtualization.
3. Quad Rank x4 configuration packs extreme capacity per DIMM, enabling dense in-memory analytics and large-scale virtual machine consolidation without sacrificing channel efficiency.
4. Low-voltage operation significantly cuts datacenter power draw and thermal stress, directly lowering cooling costs in high-density rack deployments.
5. Generous module density lets IT architects provision ample memory headroom for growing cloud workloads, reducing the need for disruptive mid-life server upgrades.

Why These Specs Matter

The Samsung M386B4G70DM0-YK03 is a 32GB DDR3 Registered DIMM engineered for server environments, where uptime and data integrity are not just benefits—they are absolute requirements. Its ECC technology continuously detects and corrects single-bit memory errors, directly preventing silent data corruption in virtualized clusters hosting dozens of VMs; a flipped bit in a financial database or hypervisor control structure could cascade into service outages, but ECC ensures transactional accuracy and system stability. The registered signal type buffers command and address lines, allowing fully populated quad-rank configurations without overloading the memory controller. This means you can deploy 384GB or more across six channels in a virtualization host, confidently running memory-intensive applications like Redis or SAP HANA in-memory databases where large, fast datasets demand rock-steady signal integrity. The quad-rank x4 design further boosts bandwidth utilization through interleaving, critical when multiple VMs contend for memory access during peak loads. Operating at 1.35V, this low-voltage DDR3L module reduces power consumption and thermal stress in dense data centers, lowering cooling costs while maintaining 1600MHz speed—a tangible gain in total cost of ownership that directly impacts your operational budget and environmental footprint.

Endurance & Reliability

This 32GB DDR3L-1600 ECC Registered RDIMM (Quad Rank x4) is server memory. Below is capacity planning advice for common workloads.

General Virtualization
Populate one quad‑rank DIMM per memory channel to sustain the full 1600MHz speed and enable channel interleaving. On a dual‑socket server with four channels each, this yields 128GB of balanced memory for moderate virtualization workloads. For dense VM deployments, install two DIMMs per channel, accepting a clock drop to 1066MHz while doubling capacity.

In-Memory Database
Choose a full population of two quad‑rank DIMMs per channel to deliver maximum density—up to 256GB per processor in a four‑channel platform. Although the memory speed may fall to 800MHz or 1066MHz, the priority is keeping the entire dataset in RAM. The ECC and registered design safeguard critical data.

High Performance Computing
Bandwidth‑sensitive HPC workloads require maximum memory speed; install one quad‑rank DIMM per channel to maintain 1600MHz and low latency. Populate all channels symmetrically across both CPUs to avoid NUMA penalties and ensure balanced bandwidth in parallel jobs.

Verified Compatibility

Compatible with Dell R720, R520, HP DL380p Gen8, Lenovo RD430 after rigorous testing.

FAQ