General

Engineer's Note

This is a server-class DDR3 VLP RDIMM, purpose-built for dense virtualization, in-memory databases, and mission-critical workloads where data integrity is paramount. Its registered architecture combined with ECC ensures signal stability across fully populated systems, while the dual-rank x4 configuration and very low-profile form factor optimize both memory bandwidth utilization and thermal clearance in 1U/2U rack servers.

Technical Specs & Insights

1. High-density module capacity allows data centers to pack more memory into each server node, substantially increasing virtual machine density and reducing cost per gigabyte in large-scale virtualization farms.
2. ECC protection continuously detects and corrects single-bit errors, preserving data integrity for financial transactions, database operations, and mission-critical enterprise workloads that cannot tolerate silent corruption.
3. Registered buffering strengthens address and command signals across heavily loaded memory channels, making it possible to populate all DIMM slots and scale system memory to hundreds of gigabytes with unwavering stability.
4. Very low profile form factor minimizes the vertical obstruction inside rack-mounted servers, improving airflow and reducing fan power consumption while lowering memory temperatures in dense 1U and blade deployments.
5. Dual-rank x4 organization interleaves accesses across two internal ranks on the same module, keeping the server’s memory controller pipeline saturated for higher effective throughput under heavy consolidation and analytics loads.

Why These Specs Matter

Designed for enterprise servers, the Samsung M392B2G70DM0-CK0Q2 is a 16GB DDR3-1600 VLP RDIMM that directly addresses the most critical pain points in data center environments. Its four defining characteristics—ECC error correction, registered signal buffering, dual-rank x4 organization, and a very low profile form factor—are not just specifications; they are operational guarantees.

In a dense virtualization cluster running dozens of VMs per host, memory integrity is non‑negotiable. The ECC functionality actively detects and corrects single‑bit flips caused by cosmic radiation or electrical noise, preventing silent data corruption that could crash a hypervisor or irreversibly alter financial records mid‑transaction. Meanwhile, the registered buffer isolates the memory controller from the electrical load of multiple ranks, enabling you to populate all 24 DIMM slots on a dual‑socket board with full 16GB modules without sacrificing the 1600MHz speed. This translates to reliable, maximum memory capacity for your entire VM fleet. For an in‑memory database like Redis or a transactional MySQL instance, the dual‑rank x4 design interleaves access across two internal ranks, boosting sustained bandwidth under concurrent query loads. Finally, the VLP height eliminates mechanical interference in 1U blade servers and improves airflow across densely packed nodes, directly lowering cooling costs and preventing thermal throttling. This module turns a simple upgrade into a measurable gain in uptime, throughput, and data center efficiency.

Endurance & Reliability

General Virtualization
For balanced consolidation of VMs, deploy these 16GB dual-rank RDIMMs in a symmetric multi-channel configuration. On a dual-socket platform, populate at least one DIMM per memory channel — typically eight modules (128GB total) — to preserve memory bandwidth and reduce hypervisor overhead. Scale to 256GB or 384GB by fully populating all channels, maintaining uniform ranks for predictable latency under multi-tenant workloads.

In-Memory Database
Maximize capacity per server to keep entire datasets resident in RAM. Install three DIMMs per channel (12 x 16GB = 192GB per CPU) for a dense, triple-ranked-per-channel layout that delivers both capacity and interleaved throughput. ECC and register buffering safeguard transactional integrity, while the 1600 MT/s speed and CL11 timing ensure sustained low-latency access critical for Redis or SAP HANA-like environments.

High Performance Computing
Lean toward balanced bandwidth in clusters where MPI or OpenMP jobs demand steady memory throughput. Use these VLP RDIMMs to fully load all memory channels with one DIMM per channel (128GB per node), minimizing channel contention. The very low-profile form factor improves airflow in dense 1U/2U racks, and the dual-rank x4 organization enables effective rank interleaving for floating-point and simulation codes.

Verified Compatibility

Strictly tested and validated for Dell PowerEdge R720, HP DL380p Gen8, and similar registered ECC servers.

FAQ