General

Engineer's Note

Designed for enterprise-class servers, this Samsung M393B5270CH0-YH9Q4 4GB DDR3-1333 RDIMM leverages registered signaling and ECC to maintain data integrity in memory-intensive workloads such as virtualization and in-memory databases. Its single-rank x4 organization and CL9 latency deliver stable, low-latency performance while the 1.35V low-voltage operation helps reduce power consumption in dense rack deployments.

Technical Specs & Insights

1. ECC error correction detects and corrects single-bit memory errors in real time, preserving data integrity for mission-critical enterprise applications and preventing silent data corruption at scale.

2. Registered signal buffering stabilizes high-density server memory channels, enabling reliable operation across fully loaded DIMM slots under continuous heavy computational loads.

3. Low 1.35V operating voltage reduces overall datacenter power draw and thermal stress per node, which directly improves energy efficiency in dense rack deployments.

4. DDR3 memory technology delivers a proven, cost-effective foundation for legacy server environments that prioritize platform stability and long-term lifecycle consistency.

5. 1333MHz speed provides a balanced bandwidth envelope sufficient for moderate virtualization workloads, ensuring consistent throughput without overprovisioning power or cooling budgets.

Why These Specs Matter

When you run a virtualized cluster hosting dozens of mission-critical VMs on a single server, the Samsung M393B5270CH0-YH9Q4 DDR3 RDIMM transforms four engineering choices into real-world resilience. Its ECC actively corrects single-bit errors that would otherwise silently corrupt in-memory databases like SAP HANA or Microsoft SQL Server, where even one flipped bit can cascade into failed transactions or data loss—compliance with EU RoHS and FCC only underscores the quality mandate. The registered buffer restores clean signals across fully populated memory channels, letting you scale to massive capacities without clock skew so your hypervisor does not drop a critical VM under peak loads. Operating at 1.35 V instead of 1.5 V, this 1333MHz module cuts power draw by roughly 20%, which for a rack of 20 nodes meaningfully lowers cooling overhead and monthly energy bills. Its single-rank x4 organization works hand in hand with ECC to improve error-correction granularity while delivering predictable, low-latency access patterns; in virtualization environments where the balancer shuffles memory pages constantly, that predictability prevents performance jitter. In short, this module keeps your database transactions accurate and your data center power budget lean, without compromise.

Endurance & Reliability

General Virtualization
For a general virtualization host, populate a balanced number of DIMMs per memory channel to maximize bandwidth. With 4 GB Registered DDR3 1333 MHz modules, install at least six identical sticks (24 GB total) in a dual‑socket server, distributing them evenly across all available channels, and leave room for future expansion to avoid costly swap partitions.

In‑Memory Database
In‑memory databases demand capacity and fault tolerance above all else. Deploy the maximum supported quantity of these ECC RDIMMs—up to 12 or 16 modules per CPU for 48–64 GB total—to hold entire datasets in RAM. Mirror critical tablespaces across channels and always pair identical ranks to maintain single‑rank x4 performance and reliable error correction.

High‑Performance Computing
HPC clusters benefit from balanced memory bandwidth rather than sheer density. Install one DIMM per channel (typically 6 or 8 modules per node for 24–32 GB) to achieve the highest throughput on DDR3‑1333. Use the low 1.35 V operating voltage to reduce thermal load in dense racks, and configure all nodes identically to guarantee predictable message‑passing performance across the cluster.

Verified Compatibility

Rigorously tested, this server memory is compatible with Dell PowerEdge R720, HP DL380p Gen8, Lenovo x3650 M4, and more.

FAQ