General

Engineer's Note

This 16GB DDR3-1600 registered ECC RDIMM (M392B2G70DM0-YK004) is purpose-built for legacy server platforms handling virtualization, in-memory databases, and other data-integrity-critical workloads. The dual-rank x4 configuration maximizes memory density per channel while the 1.35V low-voltage operation and registered signaling ensure stable, power-efficient performance in fully populated multi-DIMM server environments.

Technical Specs & Insights

1. Registered DIMM architecture buffers command and address signals, enabling stable operation with large memory populations that hyperscale virtualization farms demand.
2. ECC protection silently corrects single-bit errors in real time, preserving the integrity of long-running transactional databases and preventing costly data corruption.
3. A sixteen-gigabyte capacity per stick ramps up memory density inside rack servers, allowing more active virtual machines and containers per physical node.
4. Dual Rank x4 organization maximizes channel bandwidth through aggressive rank interleaving, accelerating in-memory analytics and heavy OLTP workloads.
5. Low-voltage 1.35V operation trims overall rack-level power draw and cooling overhead, delivering significant energy savings across dense datacenter deployments.

Why These Specs Matter

The Samsung M392B2G70DM0-YK004 is a registered DDR3 server memory module engineered for mission-critical enterprise environments where downtime is not an option. Its ECC technology constantly scans and corrects single-bit memory errors, preventing silent data corruption that could poison financial transactions or compromise database integrity. In a virtualized cluster running dozens of VMs on a single host, the Registered (buffered) signal architecture isolates the memory controller from electrical load, letting you populate all 24 DIMM slots without sacrificing stability—this directly translates to higher VM density and seamless live migration. The dual-rank x4 organization enables rank interleaving, overlapping memory accesses to reduce latency and boost throughput under the heavy concurrent reads of an in-memory database like Redis or SAP HANA. Moreover, the 1.35V low-voltage operation cuts power consumption by up to 20% compared to standard 1.5V DDR3, significantly reducing your data center’s cooling overhead and energy bill while sustaining 1600MT/s performance. Every bit of these features works together to deliver uncompromised data fidelity, maximum uptime, and cost-efficient scalability for your most demanding workloads.

Endurance & Reliability

General Virtualization
Balance capacity and memory bandwidth by populating at least one 16GB DIMM per channel. A dual-socket server with six modules (96GB) efficiently supports moderate VM densities. Expand by adding identical modules symmetrically across CPUs to sustain NUMA performance and leverage ECC protection for multi-tenant stability.

In-Memory Database
Maximize capacity by fully populating all DIMM slots with these 16GB Registered DIMMs, targeting up to 384GB in a 24-slot server. When using two DIMMs per channel, accept potential downclocking; the Registered architecture maintains data integrity for massive in-memory datasets. This approach reduces disk I/O and accelerates real-time analytics.

High-Performance Computing
For peak bandwidth, adopt one DIMM per channel to maintain the full 1600MHz speed. An eight-channel compute node benefits from eight modules (128GB total). If larger working sets are required, evaluate two-DIMM-per-channel setups and weigh the frequency trade-off against your application’s latency sensitivity. Balanced configurations prevent memory bottlenecks in parallel workloads.

Verified Compatibility

Rigorously tested server memory, compatible with Dell PowerEdge R720, HPE ProLiant DL380p Gen8, Lenovo ThinkServer RD630.

FAQ