Samsung M393B1G70QH0-YK0 8GB DDR3 RDIMM 1600MHz | Reliable ECC RAM

General

Engineer's Note

Designed for server platforms, this Samsung M393B1G70QH0-YK0 8GB DDR3-1600 Registered DIMM with ECC ensures data integrity in virtualized environments and memory-intensive databases. Its single-rank x4 organization and 1.35V low-voltage operation reduce power consumption and improve signal stability under sustained heavy loads.

Technical Specs & Insights

1. ECC error correction detects and corrects single-bit memory faults in real time, preserving data accuracy in constant uptime environments like database servers and financial transaction systems.
2. Registered signal buffering decouples the memory controller from the electrical load of the DRAM chips, enabling stable population of all memory channels across large-scale virtualization hosts.
3. Single Rank x4 organization enhances bank-level parallelism, ensuring low latency and consistent throughput when multiple virtual machines contend for shared memory resources.
4. 1.35V low-voltage operation significantly reduces the power envelope and cooling demands of dense server racks, directly improving energy efficiency in hyperscale data centers.
5. 8GB capacity per DIMM supplies a balanced base unit for scalable memory configurations, simplifying resource allocation in clustered node deployments without sacrificing consolidation density.

Why These Specs Matter

The Samsung M393B1G70QH0-YK0, an 8GB DDR3L-1600 Registered ECC DIMM, integrates four critical features that transform server reliability and efficiency. ECC protection is your last line of defense against single-bit errors that can silently corrupt transactional data or crash an entire virtualized host. Its registered buffer chip isolates the memory controller from electrical load, enabling you to fully populate all DIMM slots—essential for scaling dense VMware or Hyper-V clusters without intermittent memory faults. Operating at a low 1.35V, it dramatically reduces power consumption and cooling overhead in always-on data centers, lowering TCO. The single-rank x4 configuration paired with 1600 MT/s offers exceptionally predictable latency and bandwidth, a critical advantage for in-memory databases such as Redis where microsecond-level jitter degrades user experience. For the IT architect, this module means you are not merely adding gigabytes; you are engineering a stable, energy-conscious, and error-resilient platform where virtualization density meets uncompromising data integrity.

Endurance & Reliability

General Virtualization
For a typical hypervisor host running multiple virtual machines, populate all available memory channels with balanced modules. Starting with six 8 GB RDIMMs per CPU (48 GB total) provides a solid foundation for moderate consolidation ratios. Configure identical DIMMs in each channel to maintain symmetric memory access and avoid NUMA performance penalties.

In-Memory Database
In-memory databases such as Redis or SAP HANA demand both capacity and fault tolerance. Deploy at least sixteen 8 GB RDIMMs (128 GB) across all channels to hold large datasets entirely in RAM. Always populate memory in multiples that match the platform’s memory interleaving rules, and leverage ECC to guard against silent data corruption.

High-Performance Computing
HPC workloads benefit from maximum memory bandwidth. Install one 8 GB RDIMM per channel to populate all channels of the processor—this yields a balanced configuration with high throughput for tightly coupled parallel tasks. If the node supports dual processors, mirror the population strategy symmetrically to avoid remote memory access latency, and consider the lowest CAS latency your budget allows.

Verified Compatibility

Rigorously tested, works with Dell PowerEdge R720, HP ProLiant DL380p Gen8, IBM System x3650 M4.

FAQ