General

Engineer's Note

Designed for server and data center environments, this 16GB DDR4-2400 RDIMM with ECC ensures data integrity for mission-critical workloads such as virtualization and in-memory databases. Its dual-rank x8 organization enhances memory interleaving and bandwidth utilization, while the registered signal type stabilizes high-density configurations by reducing electrical loading on the memory controller.

Technical Specs & Insights

1. A 16GB capacity per RDIMM packs sufficient headroom for dense virtualization, letting you host more VMs per server before hitting memory bottlenecks.
2. Hardware ECC instantly corrects single-bit errors, preserving transaction integrity in databases and financial systems where silent data corruption is unacceptable.
3. The registered design re-drives command and address signals, maintaining clean signaling across fully loaded memory banks in multi-socket enterprise platforms.
4. Dual Rank x8 organization exploits rank interleaving to mask row-cycle latency, delivering consistently high bandwidth under the mixed workloads of consolidated servers.
5. Operating at just 1.2 volts, this module curbs per-DIMM power draw, trimming electricity and cooling costs in scaled-out data centers without sacrificing stability.

Why These Specs Matter

The Samsung M393A2K43BB1-CRC is a 16GB DDR4-2400 server RDIMM whose four critical attributes—ECC, registered clock buffering, dual-rank x8 architecture, and low 1.2V operation—directly address infrastructure pain points. In a dense virtualization environment, ECC prevents silent data corruption inside hypervisor and guest memory, eliminating the risk of unexplained crashes that trigger failover storms. The registered buffer guarantees clean signal delivery even when all 24 memory slots per dual-socket node are filled, letting you reach 384GB of reliable capacity for heavy VM consolidation. The dual-rank design employs rank interleaving to boost bandwidth; an in-memory database such as Redis benefits directly, serving more queries per second during traffic surges because the controller can overlap transactions across two internal ranks. Lastly, the standard 1.2V supply curbs power and thermal footprint, accumulating substantial energy savings at rack scale. Together, these features make the module an ideal backbone for virtualization clusters and real-time analytic databases.

Endurance & Reliability

General Virtualization
For a typical hypervisor hosting multiple VMs, density per channel is critical. Populate memory channels symmetrically—install six or eight identical 16 GB DDR4-2400 RDIMMs in a dual-socket server to achieve 96–128 GB while preserving balanced interleaving and ECC protection. This supplies ample headroom for light to moderate overcommitment without incurring the latency penalty of swapping.

In-Memory Database
In-memory workloads such as Redis or SAP HANA demand both capacity and bandwidth. Deploy at least 16 of these 16 GB registered DIMMs across all channels to reach 256 GB, enabling the full dataset to reside in RAM. While 2400 MT/s is modest, the high rank count (dual-rank x8) increases row-hits and request parallelism, partially offsetting the frequency limitation.

High-Performance Computing
HPC clusters benefit from consistent performance under sustained heavy load. Fill every memory slot with these 16 GB RDIMMs—up to 384 GB per node—to feed many-core processors with wide data streams. ECC reliability is mandatory for long-running simulations, and the registered interface stabilizes signal integrity at scale. When cost is a priority, this mature DDR4-2400 spec offers a budget-friendly way to maximise socket capacity.

Verified Compatibility

Validated for compatibility with Dell PowerEdge R760, HPE ProLiant DL380 Gen10, Lenovo ThinkSystem SR650 after strict testing.

FAQ