03KL461 Lenovo 32GB Pc5-38400 DDR5 4800mhz SDRAM 288-pin Cl46 Ecc Registered Rdimm RAM For Server

Lenovo 03KL461 Server Memory

The Lenovo 03KL461 represents a significant advancement in server memory technology, built upon the DDR5 architectural foundation. This memory module operates at a base frequency of 4800MHz, providing substantial bandwidth improvements over previous DDR4 generations. The PC5-38400 designation indicates the module's theoretical peak transfer rate of 38,400 MB/s, enabling faster data processing and reduced latency in server operations. The implementation of DDR5 technology brings improved power management through the integrated power management IC (PMIC), which distributes power more efficiently across the memory module, reducing overall system power consumption while maintaining performance stability.

Signal Integrity and Reliability

This server memory module incorporates advanced signal integrity features including Decision Feedback Equalization (DFE) which enables improved I/O speed reliability. The on-die ECC (Error Correction Code) provides additional data protection by correcting errors directly on the memory chip before they can affect system performance. The module's construction includes temperature sensors that monitor thermal conditions in real-time, allowing the system to adjust performance parameters to prevent overheating and ensure consistent operation under varying server workloads.

32GB Memory Capacity

High-Density Memory Structure

The 32GB capacity of the Lenovo 03KL461 is achieved through advanced memory chip packaging and organization. Utilizing 2Rx8 (2 Rank, x8 organization) architecture, this configuration provides optimal balance between capacity, performance, and signal loading. The 2-rank design allows for improved memory access parallelism, enabling the memory controller to interleave operations between ranks for increased efficiency. The x8 organization refers to the data width per memory chip, which offers improved reliability characteristics compared to x4 organizations while maintaining excellent performance characteristics for server applications.

Server Workload Optimization

With 32GB per module, this memory is ideally suited for modern server workloads including virtualization, database management, and high-performance computing applications. The substantial per-module capacity allows server configurations to achieve high total memory capacities without requiring excessive DIMM slots, preserving system resources for other expansion needs. This capacity is particularly beneficial for memory-intensive applications that require large working sets to be maintained in RAM for optimal performance.

Key Specifications and Connector Interface

288-Pin DIMM Form Factor

The Lenovo 03KL461 memory module conforms to the standard 288-pin DDR5 DIMM form factor with precise mechanical specifications. The module measures approximately 133.35mm in length and 31.25mm in height, with a nominal thickness of 1.27mm. These dimensions ensure compatibility with standard server memory slots and retention mechanisms. The 288-pin arrangement includes dedicated pins for power delivery, ground connections, data signals, address/command inputs, and specialized functions specific to DDR5 technology. The physical design incorporates a centrally located keying notch that prevents incorrect installation in incompatible memory slots.

DDR5 Voltage Specifications

The Lenovo 03KL461 operates at a nominal voltage of 1.1V, representing a significant reduction from the 1.2V typically associated with DDR4 memory. This voltage reduction contributes to lower power consumption and reduced heat generation, which is particularly important in dense server deployments where power and cooling constraints are critical considerations. The integrated PMIC (Power Management IC) further enhances power efficiency by providing granular voltage regulation to different memory components, optimizing power delivery based on current operational demands.

Power Efficiency Metrics

This memory module implements several power-saving features including advanced power-down states and self-refresh capabilities that reduce power consumption during periods of low memory utilization. The module supports various power management modes that can be controlled at the system level, allowing server administrators to balance performance requirements with energy efficiency goals. Typical power consumption varies based on operational frequency and utilization, but generally remains within the efficient operational envelope defined by DDR5 specifications.

Performance Characteristics

Data Transfer Capabilities

Operating at 4800MHz, the Lenovo 03KL461 delivers substantial data transfer capabilities essential for modern server applications. This frequency translates to a data rate of 4.8 billion transfers per second per data pin, with the 64-bit data bus enabling an overall module bandwidth of 38.4 GB/s. The high operating frequency reduces data access latency and improves responsiveness for memory-intensive applications. The module's design ensures signal integrity is maintained at this frequency, even in challenging server environments with potential signal integrity concerns from system architecture or environmental factors.

Timing Parameters and Latency

The memory module operates with specific timing parameters that balance performance with stability requirements for server environments. While exact timing values may vary based on system configuration and BIOS settings, typical operations follow standard DDR5-4800 timing conventions. These timing parameters include CAS latency, row access time, and various other specifications that collectively determine the memory's responsiveness to access requests. The module is engineered to maintain stable operation at specified timings across its supported temperature and voltage ranges.

Bandwidth and Data Rate Capabilities

PC5-38400 Bandwidth Specification

The PC5-38400 designation indicates the module's peak theoretical bandwidth of 38,400 MB/s (approximately 38.4 GB/s). This substantial bandwidth enables efficient handling of data-intensive server workloads including in-memory databases, virtualization, and scientific computing applications. The bandwidth is achieved through the combination of 4800MHz data rate and the 64-bit data bus, with additional efficiency gains from the improved command/address bus architecture in DDR5 technology. This bandwidth represents a significant increase over previous-generation DDR4 memory modules commonly deployed in server environments.

Real-World Performance Considerations

While theoretical bandwidth provides a useful benchmark, real-world performance depends on multiple factors including memory controller efficiency, system architecture, and application access patterns. The Lenovo 03KL461 is optimized for server workloads that benefit from both high bandwidth and capacity, with architectural features that improve actual achievable performance in multi-DIMM configurations. The memory subsystem in compatible servers can typically sustain high percentages of theoretical bandwidth under optimal conditions, ensuring that server applications receive the memory performance necessary for efficient operation.

System Compatibility

Supported Server Platforms

The Lenovo 03KL461 32GB DDR5 memory module is specifically validated for compatibility with various Lenovo server platforms that support DDR5 memory technology. Compatible systems typically include recent generations of Lenovo ThinkSystem servers and other enterprise server products designed for DDR5 memory integration. Server compatibility depends on multiple factors including memory controller capabilities, BIOS/firmware versions, and specific system configuration constraints. This memory module is engineered to meet Lenovo's stringent compatibility requirements, ensuring reliable operation in supported server environments.

Mixing with Other Memory Modules

While possible to mix the Lenovo 03KL461 with other compatible memory modules in some server configurations, best practices generally recommend using identical memory modules throughout a system for optimal performance and reliability. When mixing is necessary, considerations include matching critical timing parameters, operating voltages, and module organizations to maintain system stability. Mixed configurations may operate all memory at the speed of the slowest module, and some advanced memory features may be disabled in heterogeneous memory configurations. Server system documentation provides specific guidance regarding memory mixing constraints and recommendations.

Server Applications and Deployment Use Cases

Data Center Applications

The Lenovo 03KL461 32GB DDR5 memory is particularly well-suited for server virtualization platforms where memory capacity and performance directly impact the number of virtual machines that can be efficiently hosted on a physical server. The high bandwidth and capacity enable efficient memory overcommitment strategies while maintaining performance for virtualized workloads. The module's reliability features ensure stable operation in virtualized environments where memory errors could affect multiple virtual machines simultaneously. Virtualization hypervisors can leverage the memory's capabilities for advanced features such as memory ballooning, transparent page sharing, and efficient memory allocation across virtual machines.

Database Management Systems

Database servers benefit significantly from the performance characteristics of the Lenovo 03KL461 memory module. The high bandwidth supports rapid data access for database queries and transactions, while the 32GB capacity per module enables large database buffer pools to be maintained in memory, reducing physical storage I/O requirements. In-memory database systems particularly benefit from the combination of capacity and performance, allowing larger datasets to be processed entirely in memory. The memory's error correction capabilities are especially valuable for database applications where data integrity is paramount.

High-Performance Computing Workloads

High-performance computing (HPC) applications including scientific simulations, engineering analysis, and financial modeling benefit from the Lenovo 03KL461's combination of high bandwidth and capacity. These applications often process large datasets that must be maintained in memory for efficient computation, and the memory's performance characteristics reduce wait states during data access operations. The module's reliability ensures extended computational jobs can complete without interruption due to memory errors, which is particularly important for long-running simulations where restarting would represent significant computational cost.

Big Data and Analytics Platforms

Modern big data platforms and analytics frameworks frequently process large datasets in memory to achieve acceptable performance for complex analytical queries. The Lenovo 03KL461 provides the memory capacity and performance needed for these memory-intensive workloads, enabling faster processing of analytical operations and more responsive business intelligence applications. The memory architecture supports the random access patterns common in big data applications while maintaining efficient operation under sustained heavy utilization typical in analytics environments.

Signal Interface Specifications

The memory module's interface includes specific characteristics for command/address signals, data signals, and control signals. The command/address bus operates with parity protection to ensure command integrity, while the data bus implements ECC for data protection. Signal loading, termination, and timing parameters are engineered to maintain signal integrity at the 4800MHz operating frequency, even in multi-DIMM configurations. The physical layer implementation includes features to minimize crosstalk, signal skew, and other integrity concerns that could impact reliable operation in server environments.