General

Engineer's Note

Designed as a server-grade 8GB DDR3L-1333 RDIMM, this module operates at a low 1.35V with registered signal buffering and dual-rank x4 organization, ensuring stable electrical loading and enhanced data integrity for dense memory configurations. Its ECC error correction and reliable registered architecture make it ideally suited for virtualization platforms, in-memory databases, and any data-sensitive enterprise workload where uptime and accuracy are critical.

Technical Specs & Insights

1. Integrated ECC protection prevents silent data corruption, a critical necessity for financial transactions and mission-critical databases where uptime and accuracy are non-negotiable.
2. The registered signal design stabilizes command and address buses under heavy load, allowing servers to populate all DIMM slots for maximum memory capacity without sacrificing reliability.
3. Operating at 1.35V instead of the standard 1.5V slashes per-DIMM power consumption, which scales into significant energy savings across a fully populated rack of hosts.
4. Dual Rank x4 architecture enhances channel utilization through rank interleaving, delivering sustained bandwidth during simultaneous high-throughput operations like in-memory analytics.
5. With 8 GB per module, IT architects can strike an ideal balance between granular scalability and cost, deploying just enough memory for containerized microservices or medium-sized virtualized environments.

Why These Specs Matter

In a data center environment, the Samsung M393B1K70CHD-YH9 RDIMM directly addresses the critical pain points of enterprise computing. Its ECC technology is not merely a specification; it is your last line of defense against silent data corruption. For an in-memory database like SAP HANA or a transactional SQL server, a single bit flip can cascade into financial miscalculations or transaction errors—ECC detects and corrects these errors in real time, safeguarding data integrity without service interruption. The Registered signal buffer is equally vital for scalability. When you populate all 24 DIMM slots in a virtualization host running dozens of VMs, unbuffered memory would overload the memory controller, causing boot failures. This module’s register stabilizes the electrical load, guaranteeing seamless operation at full capacity. Furthermore, the dual-rank x4 organization unlocks interleaving across internal banks, delivering higher sustained bandwidth for virtualized workloads. Your hypervisor can schedule more vCPUs without memory bottlenecks. Finally, the 1.35V low-voltage operation directly reduces power consumption and cooling demands across a server farm, translating into tangible OpEx savings while maintaining the reliable 1333MHz speed and CL9 latency that keep your enterprise applications responsive under heavy concurrent loads.

Endurance & Reliability

General Virtualization
For moderate-density virtualization hosts, populate at least six identical 8 GB RDIMMs (48 GB total) across three memory channels per CPU to balance capacity and memory bandwidth. Dual-rank x4 DIMMs are preferred here because they deliver better throughput under mixed VM workloads. If the hypervisor supports memory overcommit, you can start with 48 GB per socket and scale to 96 GB by adding a second identical kit as VM density grows.

In-Memory Database
In-memory databases like Redis or SAP HANA demand both capacity and data integrity, making registered ECC mandatory. Deploy six to twelve 8 GB RDIMMs (48–96 GB) per populated CPU, filling all channels with identical dual-rank DIMMs to maximize interleaving and reduce latency. Always budget at least 20 % spare capacity for dataset growth and replication overhead, and strictly avoid mixing single-rank or unbuffered modules.

High-Performance Computing
HPC clusters typically require maximum memory bandwidth per core. Install one 8 GB RDIMM per channel across all available memory channels—often eight or more per socket—to achieve the highest sustained throughput. The 1.35 V DDR3L devices reduce thermal load in dense node configurations, and using registered dual-rank x4 parts ensures signal integrity across large memory populations during long-running parallel jobs.

Verified Compatibility

Rigorously tested and fully compatible with Dell PowerEdge R720, HP DL380p Gen8, Lenovo x3650 M4, and similar DDR3 registered platforms.

FAQ