MEM-DR464L-SL03-LR26 Supermicro 64GB 2666MHz Pc4-21300 DDR4 Lrdimm

Supermicro MEM-DR464L-SL03-LR26 64GB 2666MHz Memory

General Information

• Brand: Supermicro
• Model Number: MEM-DR464L-SL03-LR26
• Product Title: Samsung 64GB PC4-2666V-L Load Reduced 4Rx4 LRDIMM Memory

Technical Specifications

• Memory Capacity: 64GB
• Type: DDR4 SDRAM
• Number of Modules: 1 x 64GB
• Memory Speed: 2666MHz (DDR4-21300/PC4-2666V-L)
• Module Configuration: Load Reduced
• CAS Latency: CL19
• Pin Count: 288 Pins
• Voltage: 1.20V

Physical Characteristics

• Form Factor: 288-Pin LRDIMM
• Shipping Size: 1.00" Height x 6.75" Depth
• Shipping Weight: 0.20 lbs

Supermicro MEM-DR464L-SL03-LR26 64GB Memory Overview

The enterprise server memory category focuses on high-capacity, high-reliability RAM solutions engineered for mission-critical workloads, data-intensive applications, and always-on infrastructure environments. Within this category, load reduced DIMM technology represents a specialized subcategory designed to overcome the physical and electrical limitations of traditional registered memory when scaling to higher capacities. The Supermicro MEM-DR464L-SL03-LR26 64GB DDR4 load reduced memory module exemplifies this category by combining advanced buffering architecture, server-grade materials, and strict validation standards to meet the demands of modern data centers.Server memory differs fundamentally from consumer-grade RAM in terms of stability, endurance, and compatibility with multi-socket platforms. Enterprise-grade DDR4 SDRAM modules are optimized for predictable performance under sustained load, reduced error rates, and long operational lifecycles. The category addresses requirements found in virtualization platforms, cloud computing clusters, enterprise databases, high-performance computing nodes, and large-scale storage servers, where memory capacity and signal integrity directly impact system efficiency and uptime.

DDR4 Load Reduced DIMM Technology

Load Reduced DIMM, commonly referred to as LRDIMM, is a memory technology specifically engineered to reduce the electrical load placed on the memory controller when high-capacity modules are installed. Unlike registered DIMMs that buffer only control and address signals, LRDIMMs incorporate an advanced memory buffer that isolates both data and control signals from the memory controller. This architectural enhancement allows servers to support significantly higher memory capacities per channel without compromising stability or performance.

The Supermicro MEM-DR464L-SL03-LR26 module operates within this LRDIMM category, enabling enterprise servers to populate all memory slots while maintaining signal integrity at 2666MHz speeds. This capability is essential in platforms that demand large memory footprints for in-memory databases, virtualization hosts running dozens of virtual machines, and analytics engines processing massive datasets in real time.

Electrical Load Reduction and Signal Integrity

In high-density server configurations, the cumulative electrical load of multiple memory modules can degrade signal quality, leading to reduced operating frequencies or system instability. LRDIMM technology mitigates this challenge by using a dedicated buffer chip that re-drives data signals, effectively reducing the load seen by the memory controller. This design allows each memory channel to support more ranks and higher-capacity modules without sacrificing performance.

The MEM-DR464L-SL03-LR26 leverages this approach to deliver quad-rank capacity in a single 64GB module, making it possible to scale memory capacity efficiently while maintaining consistent latency characteristics. This advantage is particularly valuable in dual-socket and multi-socket server architectures where memory channel efficiency directly affects overall system throughput.

Memory Capacity and Density Advantages

High-capacity memory modules form the backbone of enterprise computing environments that rely on extensive in-memory processing. A 64GB DDR4 LRDIMM module provides a substantial capacity per slot, reducing the total number of modules required to achieve target memory sizes. This density advantage simplifies server configurations, reduces power consumption per gigabyte, and improves airflow within chassis designs.

In the context of category-level deployment, memory density plays a critical role in total cost of ownership. Fewer modules mean fewer points of failure, lower replacement costs, and simplified inventory management. The Supermicro MEM-DR464L-SL03-LR26 aligns with these objectives by offering a balanced combination of capacity, frequency, and reliability that suits a wide range of enterprise workloads.

Quad Rank Architecture and X4 Organization

Quad rank memory architecture enables a single module to present multiple independent ranks to the memory controller, increasing effective capacity while optimizing data access patterns. The x4 organization used in this module enhances error detection and correction capabilities, as data is distributed across more memory chips per rank. This configuration is particularly well-suited to enterprise servers that prioritize data integrity and fault tolerance.

The combination of quad rank design and x4 organization contributes to improved resilience against memory-related errors, supporting error correcting code mechanisms that are essential in mission-critical systems. This architecture supports stable operation under continuous load, making it suitable for environments where downtime or data corruption is unacceptable.

Operating Frequency and Performance Characteristics

Operating at 2666MHz, corresponding to the PC4-21300 specification, this memory module delivers a balanced performance profile optimized for enterprise workloads. DDR4-2666 provides sufficient bandwidth for data-intensive applications while maintaining compatibility with a wide range of server platforms. The frequency selection reflects a category-wide emphasis on stability and efficiency rather than peak consumer-level clock speeds.

In enterprise environments, consistent latency and predictable throughput are often more important than marginal increases in raw frequency. The CL19 latency specification of the MEM-DR464L-SL03-LR26 is tuned to deliver reliable access times that align with server chipset expectations and BIOS configurations, ensuring smooth integration into validated platforms.

Bandwidth Efficiency in Multi-Channel Configurations

Modern server processors rely on multiple memory channels to achieve high aggregate bandwidth. When populated with compatible LRDIMM modules, these channels can operate at optimal speeds even when fully loaded. The category emphasis on multi-channel efficiency ensures that servers can sustain high memory throughput during peak workloads such as data analytics, virtualization consolidation, and real-time transaction processing.

The MEM-DR464L-SL03-LR26 module supports these configurations by maintaining stable operation across all channels, enabling servers to fully leverage available memory bandwidth without downclocking or reducing capacity.

Power Efficiency and Thermal Management

Operating at a nominal voltage of 1.2V, DDR4 memory represents a significant improvement in power efficiency compared to previous generations. Lower operating voltage translates into reduced power consumption per module, which is a critical factor in large-scale data center deployments. The category prioritizes energy efficiency to support sustainability goals and reduce operational expenses.

Thermal management is closely tied to power efficiency. Lower voltage operation reduces heat output, allowing servers to maintain optimal temperatures even in densely populated racks. The Supermicro MEM-DR464L-SL03-LR26 is designed to operate within standard server thermal envelopes, supporting continuous operation without thermal throttling.

Impact on Data Center Energy Consumption

When deployed across hundreds or thousands of servers, memory power efficiency can have a measurable impact on overall data center energy usage. By using DDR4 LRDIMM modules optimized for low voltage operation, organizations can achieve meaningful reductions in power draw while maintaining required performance levels. This category-level benefit aligns with modern data center strategies focused on efficiency and scalability.

Compatibility with Supermicro Server Platforms

Compatibility and validation are defining characteristics of enterprise memory categories. The MEM-DR464L-SL03-LR26 is engineered and validated specifically for Supermicro server platforms, ensuring seamless integration with supported motherboards, chipsets, and BIOS revisions. This platform-specific optimization reduces the risk of incompatibility issues and simplifies deployment in production environments.

Supermicro servers are widely used in enterprise, cloud, and hyperscale environments due to their modular design and extensive configuration options. Memory modules designed for these platforms must adhere to strict quality and compatibility standards to ensure reliable operation across a wide range of use cases.

BIOS Recognition and Firmware Optimization

Enterprise memory modules must be properly recognized by system firmware to operate at their intended specifications. The MEM-DR464L-SL03-LR26 is configured to work seamlessly with Supermicro BIOS settings, enabling automatic detection of capacity, frequency, and timing parameters. This level of integration reduces configuration complexity and minimizes the risk of misconfiguration during system provisioning.

Reliability, Stability, and Error Correction

Reliability is a cornerstone of the enterprise memory category. DDR4 LRDIMM modules are designed to operate continuously under demanding conditions, supporting advanced error correction mechanisms that protect data integrity. The x4 chip organization enhances ECC effectiveness, allowing the system to detect and correct a wider range of memory errors.

In environments such as financial services, healthcare systems, and large-scale databases, memory reliability directly impacts data accuracy and system availability. The Supermicro MEM-DR464L-SL03-LR26 is built to meet these stringent requirements, supporting long-term stability and predictable performance.

Continuous Operation in Mission-Critical Systems

Enterprise servers often run 24 hours a day, seven days a week, with minimal maintenance windows. Memory modules in this category are subjected to extensive testing to ensure they can withstand sustained workloads without degradation. The design and validation of the MEM-DR464L-SL03-LR26 reflect this requirement, making it suitable for long-term deployment in critical infrastructure.

Form Factor and Physical Design Considerations

The 288-pin DIMM form factor is standard for DDR4 server memory, ensuring compatibility with modern server motherboards. Physical design considerations include precise pin alignment, robust PCB construction, and high-quality soldering to withstand thermal cycling and mechanical stress. These factors contribute to long-term reliability in data center environments.

The physical characteristics of the MEM-DR464L-SL03-LR26 are optimized for dense server configurations, supporting efficient airflow and minimizing interference with adjacent components. This attention to detail reflects the category’s emphasis on operational stability and serviceability.

Enterprise Procurement and Lifecycle Management

From a procurement perspective, enterprise memory categories emphasize consistency and availability. Organizations often standardize on specific memory models to simplify maintenance, spares management, and future upgrades. The Supermicro MEM-DR464L-SL03-LR26 fits into this strategy by offering a well-defined specification that can be deployed consistently across multiple server builds.

Lifecycle management is another critical consideration. Enterprise-grade memory modules are designed for long service lives, reducing the frequency of replacements and minimizing disruptions. This reliability supports long-term planning and stable operational budgets.

Quality Assurance and Manufacturing Standards

Memory modules in this category undergo rigorous quality assurance processes, including component screening, stress testing, and compatibility validation. These measures ensure that each module meets the performance and reliability expectations of enterprise customers. The MEM-DR464L-SL03-LR26 reflects these standards, making it a dependable choice for production environments.

Positioning Within the DDR4 Server Memory Ecosystem

Within the broader DDR4 server memory ecosystem, 64GB LRDIMM modules occupy a strategic position, balancing capacity, performance, and cost. They enable high-density configurations without the premium associated with ultra-high-capacity modules, making them suitable for a wide range of enterprise deployments.

The Supermicro MEM-DR464L-SL03-LR26 exemplifies this balance, offering a robust solution for organizations seeking to optimize memory capacity while maintaining compatibility and reliability. As part of this category, it supports the evolving demands of modern enterprise computing, where memory plays an increasingly central role in overall system performance.