General

Engineer's Note

Designed for server platforms, this DDR4-2400 Registered DIMM leverages ECC and a registered signal type to ensure data integrity and signal stability in virtualized environments and in-memory databases. Its single-rank x8 configuration reduces electrical loading on the memory bus, enabling consistent low-latency operation at CL17 even under heavy multi-DIMM workloads.

Technical Specs & Insights

1. Registered signal type buffers command and address lines, enabling the server to scale to massive memory capacities without sacrificing signal integrity or uptime.
2. ECC protection transparently detects and corrects single-bit errors, safeguarding transactional databases and virtualized workloads from silent data corruption.
3. 2400MHz clock speed delivers 19.2 GB/s of bandwidth per channel, balancing throughput and power consumption for sustained cloud-native service delivery.
4. Single Rank x8 organization reduces electrical load on the memory controller, allowing denser rack deployments while maintaining full operating speed.
5. 1.2V ultra-low voltage drops overall server power draw and cooling demands, directly lowering TCO in hyperscale and always-on data centers.

Why These Specs Matter

For virtualization clusters and in-memory databases, the Samsung M393A5143DB0-CRC RDIMM is engineered with four critical traits. Its ECC silently corrects single-bit errors in real time, preventing a faulty bit from crashing a hypervisor or corrupting financial records—turning random faults into harmless blips. The on-DIMM register buffer isolates command and address lines, reducing electrical load so you can populate every channel with dense modules and scale well beyond 100 VMs per host without signal integrity issues. A 2400MHz clock with CL17 latency and single-rank x8 organization provides consistent bandwidth; for an in-memory cache like Redis or a real-time analytics engine on SAP HANA, that eliminates stall cycles and delivers snappy transactions. Finally, the 1.2V supply sharply lowers power per module. In a data center, that directly cuts cooling costs and carbon footprint, keeping total cost of ownership in check.

Endurance & Reliability

Memory Type Identification:
The M393A5143DB0-CRC is a DDR4-2400 Registered DIMM with ECC, confirming it as server-class memory.

Capacity Planning Guidance

General Virtualization
Virtualized hosts rely on ample memory to run multiple VMs without swapping. Using this 4GB RDIMM, populate six to eight modules per CPU (e.g., 24GB–32GB total) to balance density and cost for light to moderate workloads. Always install identical DIMMs in symmetric channels to maintain memory interleaving and consistent performance.

In-Memory Database
In-memory databases demand both capacity and data integrity. ECC is mandatory here, satisfied by this RDIMM, but 4GB capacity is extremely limiting. Maximize socket population — typically 16 or more DIMMs — to reach at least 64GB, though 128GB+ is recommended for production. Populate all channels equally to ensure the lowest latency and highest throughput for real-time analytics.

High-Performance Computing (HPC)
HPC clusters prioritize bandwidth over raw capacity per node. Using this 2400MHz RDIMM, populate one DIMM per channel (up to 8 DIMMs per dual-socket server) to achieve maximal memory bandwidth without exceeding the memory controller’s optimum load. Avoid mixing ranks; stick to single-rank x8 modules for consistent latency in tightly coupled parallel jobs.

Verified Compatibility

Rigorously tested, compatible with servers like Dell PowerEdge R760/R740, HPE ProLiant DL360 Gen10, Lenovo ThinkSystem SR650.

FAQ