General

Engineer's Note

Designed for server environments, this Samsung M393B5173QH0-YK0 DDR3 RDIMM with registered ECC ensures data integrity and system stability in memory-intensive workloads like virtualization and in-memory databases. Its single-rank x8 organization and low 1.35V operating voltage reduce power draw and electrical loading, enabling higher memory density and improved thermal efficiency in dense rack deployments.

Technical Specs & Insights

1. ECC protection detects and corrects single-bit errors, preserving data integrity for mission-critical enterprise applications and preventing silent data corruption in 24/7 operations.
2. Registered buffer stabilizes signal integrity across heavily populated servers, allowing dense memory configurations essential for large-scale virtualization and database workloads.
3. 4GB per module provides sufficient capacity for dedicated caching layers and lightweight virtualized instances, balancing cost and density in scale-out deployments.
4. 1600MHz clock speed delivers solid memory bandwidth for concurrent request processing, ensuring responsive performance in web serving and mid-tier application servers.
5. Low 1.35V DDR3L operation reduces power consumption and thermal output, improving data center energy efficiency and enabling higher rack density without cooling overload.

Why These Specs Matter

The M393B5173QH0-YK0 is a server-grade DDR3 RDIMM that empowers data centers with four critical attributes directly tied to operational resilience and efficiency. Its ECC technology continuously corrects single-bit errors and detects multi-bit faults, a non-negotiable safeguard in virtualization clusters where any silent data corruption could crash hypervisors or compromise multiple guest VMs. The registered signal buffer strengthens command and address buses, enabling you to fully populate DIMM slots without signal degradation—essential for memory-hungry hypervisors and large-scale database servers. Operating at a low 1.35V, the module measurably cuts power draw and cooling overhead in dense rack deployments, translating into tangible OpEx savings. The single-rank x8 design combined with 1600MHz clock speed ensures high-throughput, low-latency data delivery crucial for in-memory databases like Redis or SAP HANA, where every nanosecond of latency impacts transaction throughput. In these environments, this memory transforms raw specifications into uptime, performance, and cost control.

Endurance & Reliability

General Virtualization
For hosts running multiple virtual machines, balance capacity and bandwidth by populating all memory channels symmetrically. With these 4 GB registered ECC DDR3L modules, install two identical DIMMs per channel—12 modules (48 GB) on a typical dual-socket platform with three channels per CPU. The 1.35 V operation helps reduce power and cooling costs in dense virtualization farms.

In-Memory Database
In-memory databases require maximum capacity and uncompromised reliability. Use these single-rank 4 GB RDIMMs to fill every available DIMM slot, achieving configurations like 24 modules (96 GB) per server where three DIMMs per channel are supported. ECC protection guards critical data, while uniform population across channels prevents bandwidth imbalances under heavy read/write loads.

High-Performance Computing
HPC jobs demand consistent low-latency access and high sustained bandwidth. Deploy matching sets of these DDR3-1600 modules with one or two DIMMs per memory channel—typically 6 or 12 modules per socket—to enable channel interleaving and avoid throttling. The registered interface stabilizes signal integrity at scale, and the 1.35 V low-voltage design improves energy efficiency across large compute clusters.

Verified Compatibility

Rigorously tested for server compatibility with Dell PowerEdge R720, R620, HP DL380p Gen8, IBM x3650 M4, and more.

FAQ