General

Engineer's Note

This Samsung 16GB DDR3-1600 RDIMM, with its registered ECC design and dual-rank x4 organization, is purpose-built for mid‑range server platforms tasked with memory‑intensive virtualization or in‑memory database workloads where data integrity and signal stability are paramount. Operated at a low 1.35V with CL11 latency, it delivers a favorable balance of power efficiency and reliable 1600 MT/s throughput in 24/7 rack‑dense deployments.

Technical Specs & Insights

1. Registered buffering stabilizes command and address signals across fully populated server DIMM slots, enabling seamless 24/7 operation under heavy memory loads.
2. ECC protection instantly corrects single-bit errors, preserving data accuracy for financial transactions and database integrity without downtime.
3. Dual Rank x4 configuration keeps memory channels saturated, maximizing throughput for virtualized workloads where multiple VMs contend for I/O.
4. A 1600MHz data rate supplies sufficient bandwidth to accelerate in-memory caching and real-time analytics, cutting latency for concurrent user queries.
5. Low 1.35V operation reduces power consumption per DIMM, lowering datacenter cooling costs and improving energy efficiency in dense server racks.

Why These Specs Matter

The Samsung M393B2G70QH0-YKM08 is a server-class Registered DIMM engineered for data centers where uptime and accuracy are non-negotiable. Its four core attributes directly address the pain points of IT architects running virtualized clusters and in-memory databases. First, ECC continuously corrects single-bit errors caused by background radiation, preventing silent data corruption that could crash multiple virtual machines sharing the same physical host. Second, the registered buffer isolates the memory controller from excessive electrical load, enabling you to fully populate all 24 slots in a 2U server without signal degradation—crucial for scaling dense virtualization hosts. Third, the Dual Rank x4 organization leverages rank interleaving to boost sustained bandwidth; when an in-memory database like Redis processes millions of concurrent queries, this design reduces latency spikes by allowing the controller to prepare the next rank while the current one is busy. Finally, the 1.35V low-power operation slashes thermal dissipation across a full rack. In a 24/7 virtualized environment, lower voltage translates directly to cooler running temperatures, fewer fan failures, and measurably lower power bills, making this module a deliberate choice for resilient, cost-efficient enterprise infrastructure.

Endurance & Reliability

The Samsung M393B2G70QH0-YKM08 is a server-class 16GB DDR3-1600 registered ECC RDIMM (1.35V, dual-rank x4). Capacity planning for this module should address the following server workloads:

General Virtualization
Populate six modules per CPU (96GB) in a 2-socket server to support 20–30 VMs. Ensure symmetric placement across memory channels; the dual-rank design benefits balanced configurations. The 1.35V operation reduces energy costs in always-on virtualization farms.

In-Memory Database
Maximize capacity: fully populate a 24-slot dual-CPU system with these DIMMs to reach 384GB. Distribute modules equally per socket to maintain uniform latency. ECC and registered buffering safeguard data integrity for Redis or SAP HANA, while low voltage aids dense rack deployment.

High-Performance Computing
Install one DIMM per channel (4 or 8 modules per socket) to achieve peak bandwidth. The 1600MT/s speed and dual-rank x4 architecture deliver strong throughput when all channels are active. Always use identical modules to avoid NUMA imbalances.

Verified Compatibility

Rigorously tested server memory. Compatible with Dell PowerEdge R720, HP DL380p Gen8, IBM x3650 M4.

FAQ