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| Model | M386A8K40BM1-CRC50 |
|---|---|
| Compliance Standards | EU RoHS,FCC |
| Product Type | Memory Module |
| Memory Capacity | 64 GB |
| Memory Technology | DDR4 |
| Product Voltage | 1.2V |
| RAM Speed | 2400MHz |
| RAM Standard | DDR4-2400/PC4-19200 |
| Error Identifying | ECC |
| Signal Type | Registered |
| Column Access Strobe (CAS) | CL17 |
| Rank | Quad Rank x4 |
| Quantity of Pins | 288-pin |
| RAM Genre | RDIMM |
This Samsung 64GB DDR4-2400 Registered ECC RDIMM (M386A8K40BM1-CRC50) is engineered for enterprise server platforms, delivering robust data integrity and reliability for memory-intensive workloads such as virtualization, in-memory databases, and high-density cloud deployments. Its quad-rank x4 configuration and registered signal architecture ensure stable operation at full population across multiple DIMM slots, while the low CL17 latency and 1.2V efficiency provide excellent performance-per-watt in 24/7 data center environments.
1. Generous module capacity allows IT to pack more virtual machines and containers per physical host, directly shrinking data center footprint and licensing overhead.
2. End-to-end ECC protection combats silent data corruption, preserving transaction accuracy and uptime in mission-critical database environments.
3. Registered interface minimizes electrical loading on the memory bus, enabling stable multi-DIMM configurations across all channels of a fully populated rack server.
4. Quad rank architecture maximizes per-slot density, keeping memory bandwidth saturated for in-memory analytics without compromising data integrity.
5. Tuned transfer rate sustains consistent high throughput under concurrent multi-tenant workloads, preventing bottlenecks in software-defined infrastructure.
The Samsung M386A8K40BM1-CRC50 is a 64GB DDR4-2400 Registered DIMM purpose-built for server environments where data integrity and uptime define your operations. Its ECC technology silently corrects single-bit memory errors before they cascade into application faults, which is critical when a flipped bit in a virtualized cluster could corrupt a live migration or distort transactional records inside an in-memory database like SAP HANA. The registered clock driver buffers command and address signals, enabling you to populate every DIMM slot across a dual-socket server without signal degradation; for a dense VMware farm, this means you can scale to multiple terabytes of reliable memory without sacrificing stability. The quad-rank, x4 organization enhances fault containment and unlocks rank interleaving, overlapping read and write cycles to boost effective bandwidth exactly when dozens of VMs contend for shared resources simultaneously. Finally, the massive 64GB per module consolidates capacity into fewer sticks, lowering power draw and preserving precious board real estate for future expansion. Together, these attributes translate directly into silent error prevention, higher virtual machine density, and uncompromising performance when your revenue stream depends on always-available data.
The M386A8K40BM1-CRC50 is a 64 GB DDR4-2400 Registered ECC RDIMM, clearly a server memory module. Below are capacity planning recommendations for typical workloads.
General Virtualization
For dense VM consolidation, balance capacity and memory bandwidth. Populate all memory channels identically—e.g., 12 DIMMs (768 GB) in a dual-socket server with six channels per CPU—to ensure interleaving. When maximum density is needed, install 24 DIMMs (1.5 TB), but expect a slight frequency reduction due to quad-rank loading.
In-Memory Database
In-memory databases require the largest possible addressable memory. Fill every slot with the 64 GB RDIMMs to reach 1.5 TB on a typical dual-socket platform, and enable memory interleaving. While quad-rank DIMMs may down-clock to 2133 MT/s when all slots are populated, the enormous capacity takes precedence over the modest bandwidth sacrifice.
High-Performance Computing (HPC)
HPC workloads benefit from high bandwidth and moderate capacity. Install one DIMM per channel to sustain the full 2400 MHz speed, providing 768 GB. If memory-intensive simulations exceed that, add a second DIMM per channel; however, quad-rank loading will reduce the operating frequency, so plan job placement around the available memory bandwidth.
Rigorously tested server memory: verified compatible with Dell PowerEdge R760, HPE ProLiant DL380 Gen10, Lenovo ThinkSystem SR650, and more.
Q: Can I mix this M386A8K40BM1-CRC50 with other memory modules of different brands or speeds?
A: Mixing different brands or speeds is strongly discouraged. Inconsistent ECC Registered DIMMs may cause signal integrity issues and instability, undermining server reliability. Use identical modules for validated, predictable operation.
Q: Is this memory compatible with my system?
A: It is compatible with servers supporting DDR4-2400 Registered ECC DIMMs, such as Intel Xeon E5-2600 v3/v4 or AMD EPYC. Verify your motherboard accepts 64GB quad-rank RDIMMs via its qualified vendor list.
Q: What is the recommended DIMM population order for optimal performance?
A: Follow your server's manual; typically, populate identical DIMMs starting from the farthest slot in each channel. Distribute quad-rank modules across memory channels for balanced bandwidth and to avoid performance penalties.
Q: Does this module support overclocking or XMP profiles?
A: No. As a server-grade Registered ECC module, it adheres strictly to JEDEC DDR4-2400 standards. Overclocking and XMP are not supported, as absolute data integrity and 24/7 stability take priority.
Q: What warranty and typical failure rate can I expect?
A: This module carries a 1-year warranty. Enterprise DDR4 RDIMMs like this typically exhibit an annualized failure rate well below 0.3%, reflecting rigorous testing and high reliability for always-on data center environments.