M386A8K40BM1-CRC Samsung 64GB DDR4 SDRAM CAS-17 ECC Registered RAM

Highlights of Samsung M386A8K40BM1-CRC 64GB DDR4 LRDIMM

The Samsung M386A8K40BM1-CRC is a reliable, high-performance server memory module built to meet the demands of enterprise IT environments. With a large 64GB capacity and DDR4 2400MHz speed, this LRDIMM memory delivers consistent performance, stability, and data integrity for mission-critical systems.

General Information

• Manufacturer:: Samsung
• Part Number:: M386A8K40BM1-CRC
• Product Category: Memory Module
• Sub Type: DDR4 PC4-19200

Technical Specifications

• Total Memory Size: 64GB
• Module Configuration: 1 x 64GB
• Rank Structure: 4Rx4
• Memory Technology: DDR4 SDRAM
• Operating Frequency: 2400MHz
• Bus Speed: DDR4-2400 / PC4-19200
• CAS Latency: CL17

Physical Characteristics

Form Factor & Design

• Form Factor: 288-Pin LRDIMM
• Built for enterprise and data center servers

Shipping Details

• Shipping Height: 1.00 inch
• Shipping Depth: 6.75 inches
• Shipping Weight: 0.20 lb

Compatibility

Supported Server Platforms

• Enterprise rack and tower servers with DDR4 LRDIMM support
• High-density virtualization and cloud computing systems
• Data center servers requiring large-capacity memory modules

Compatible Processor Architectures

• Intel Xeon Scalable processor-based servers
• Intel Xeon E5 and E7 series platforms
• AMD EPYC server systems supporting DDR4 ECC LRDIMM

Overview of Samsung M386A8K40BM1-CRC 64GB PC4-19200

The Samsung M386A8K40BM1-CRC 64GB DDR4 2400MHz PC4-19200 CI17 SDRAM LRDIMM 288-Pin ECC Registered Memory Module represents a high-performance, enterprise-grade server memory category designed to meet the demands of modern data center workloads. This category is part of Samsung’s advanced Load Reduced DIMM (LRDIMM) series, optimized for applications that require maximum memory density, reliability, and scalability. LRDIMM technology distinguishes itself from standard RDIMM and UDIMM memory modules by utilizing a buffer that reduces electrical load on the memory controller, enabling higher memory capacities without compromising performance or stability.

Load Reduced DIMM (LRDIMM) Technology

LRDIMM modules, such as those in the Samsung M386A8K40BM1-CRC category, incorporate an isolation buffer between the memory controller and DRAM chips. This architectural enhancement significantly reduces the electrical load per memory channel, allowing server platforms to scale memory capacity beyond the limitations of traditional RDIMM modules. The reduced load improves signal integrity and enables higher frequency operation, which is crucial for enterprise-grade workloads including virtualization, large-scale databases, in-memory analytics, and high-performance computing.

High-Capacity 64GB Modules

The 64GB capacity featured in this category addresses the need for memory-dense configurations required by modern workloads. High-capacity memory modules reduce the number of DIMMs needed per system while increasing total available memory, thereby lowering power consumption and thermal output compared to multiple lower-capacity DIMMs. This is particularly advantageous for virtualization platforms, in-memory databases, and real-time analytics where large datasets are processed directly in RAM for maximum efficiency.

DDR4 2400MHz Speed and PC4-19200 Bandwidth

The Samsung M386A8K40BM1-CRC category operates at DDR4 2400MHz, providing an effective bandwidth of 19200 MB/s. This performance tier balances high data throughput with energy efficiency and stability. DDR4-2400 modules are widely supported across modern server platforms, ensuring compatibility with both Intel and AMD server processors. The combination of high frequency and PC4-19200 bandwidth delivers reliable performance for enterprise applications such as virtualization, cloud computing, ERP systems, and transactional databases.

CAS Latency CI17 and Timing Stability

The CI17 CAS latency of these modules ensures predictable and consistent memory timing across a variety of workloads. While latency is only one component of memory performance, stability and repeatability of memory access times are critical in enterprise environments where high reliability is required. The Samsung M386A8K40BM1-CRC category is designed to maintain this consistency under fully loaded memory channels, ensuring that server performance remains uniform even during intensive operations.

ECC Registered Memory for Data Integrity

Error Correcting Code (ECC) is a cornerstone feature of this memory category, providing real-time detection and correction of single-bit memory errors. ECC is critical in environments where data accuracy and system stability are essential, such as financial computing, healthcare systems, and scientific research platforms. The inclusion of ECC ensures that memory-related errors are corrected automatically, preventing system crashes and data corruption. Registered architecture further enhances stability by buffering control signals between the memory controller and DRAM chips.

Enterprise Server

The Samsung M386A8K40BM1-CRC category is designed for broad compatibility with enterprise-grade server platforms from major manufacturers. These modules conform to JEDEC standards, ensuring seamless integration with server motherboards, chipsets, and multi-socket configurations. Compatibility with both Intel Xeon and AMD EPYC server processors allows IT administrators to design high-density, scalable systems for diverse workloads. Platform compatibility is crucial for enterprise deployments, as it ensures predictable behavior and simplifies system upgrades and maintenance.

Cloud Applications

Virtualization environments rely heavily on large, reliable memory pools to host multiple virtual machines per server. High-capacity 64GB LRDIMM modules allow organizations to consolidate more virtual machines onto fewer physical servers, increasing hardware utilization and reducing operational costs. Consistent performance and ECC reliability are particularly important in virtualized environments, where memory errors can propagate across multiple VMs, causing significant disruptions. In cloud computing scenarios, the scalability and reliability of this memory category allow IT teams to dynamically allocate memory resources to meet fluctuating workloads, ensuring responsive performance and uninterrupted service for end users.

Database and In-Memory Processing

Modern database systems and in-memory computing platforms demand large memory capacities to achieve high-performance data processing. The Samsung M386A8K40BM1-CRC modules support such applications by enabling large memory footprints directly on the server, reducing reliance on slower storage tiers and improving query response times. High-density memory modules also allow for more efficient caching strategies, accelerating analytics, AI workloads, and real-time data processing. Enterprise-grade memory consistency and ECC protection are particularly valuable in database environments, where memory errors can result in corrupted transactions or application failures.

Long-Term Reliability

Enterprise server memory must deliver predictable long-term performance. The Samsung M386A8K40BM1-CRC category undergoes extensive testing, including stress, thermal cycling, and compatibility validation, to ensure modules perform reliably under sustained loads. This testing guarantees consistent operation in 24/7 server environments and aligns with enterprise uptime expectations. Samsung provides extended support for lifecycle management, ensuring that compatible modules remain available for replacements or capacity expansions. This long-term availability is crucial for large-scale enterprise deployments, where maintaining consistent memory specifications across multiple servers simplifies maintenance and reduces operational complexity.

Firmware and BIOS

Proper firmware and BIOS configuration is essential to extract maximum performance and reliability from this memory category. Samsung M386A8K40BM1-CRC modules are designed to comply with standard server firmware requirements, including support for LRDIMM-specific parameters. Updating server firmware to the latest revisions ensures that memory initialization, channel balancing, and signal timing are optimized, resulting in stable operation and predictable performance. Administrators can rely on these modules to integrate seamlessly into enterprise server environments without extensive manual tuning, minimizing deployment risks and ensuring consistent memory behavior across multiple servers.

Scalability and High-Density Deployments

The Samsung M386A8K40BM1-CRC category is ideal for high-density memory deployments where maximum capacity per server is required. LRDIMM technology enables greater scaling of memory per channel, supporting terabyte-scale configurations on multi-socket servers. This scalability is essential for applications such as virtualization, cloud computing, and large-scale databases where memory capacity directly influences performance and efficiency. By allowing servers to host larger memory footprints with fewer DIMMs, this category helps reduce power consumption, improve cooling efficiency, and simplify server management. High-density memory configurations also enable organizations to consolidate workloads, reduce hardware footprint, and lower overall data center operational costs.

Data Center and Resource

Efficient use of memory resources is critical for modern data centers. Deploying high-capacity LRDIMM modules like the Samsung M386A8K40BM1-CRC allows IT teams to achieve more computing power per server while optimizing rack space, power, and cooling resources. Reduced DIMM counts per server also simplify system management, minimizing the complexity of maintenance, monitoring, and firmware updates. High-density memory configurations provide the flexibility to handle variable workloads, supporting dynamic allocation of resources in virtualized or cloud environments. This category enables organizations to maximize the efficiency of their data center infrastructure while maintaining high reliability and performance.

Enterprise Advantages

Memory modules in this category are designed with long-term availability and consistent specifications in mind. Samsung’s commitment to production stability ensures that modules remain compatible across multiple generations of server hardware, simplifying upgrades and replacements. This lifecycle support is essential for enterprises that standardize on specific memory types and require predictable performance over time.