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 specific memory module designed exclusively for Lenovo server systems. This part number corresponds to a 32GB DDR5 memory module operating at 4800MHz with advanced error correction capabilities. As a genuine Lenovo component, this memory module undergoes rigorous testing and validation to ensure optimal performance and reliability in supported server platforms.

Memory Capacity

This module features a substantial 32GB capacity, making it suitable for memory-intensive server applications. The 2Rx8 configuration indicates the module utilizes two ranks of memory with an 8-bit organizational structure. This specific configuration optimizes memory access patterns and enhances overall system performance while maintaining compatibility with Lenovo server architecture requirements.

Key Specifications

Memory Technology and Generation

The 03KL461 module employs DDR5 (Double Data Rate 5) technology, representing the fifth generation of DDR SDRAM. DDR5 introduces significant architectural improvements over previous generations, including separated burst channels, enhanced power management, and improved data integrity features. This technology advancement provides substantial performance benefits for server environments requiring high bandwidth and reliability.

Speed and Bandwidth Characteristics

Operating at 4800MHz (PC5-38400), this memory module delivers a theoretical bandwidth of 38,400 MB/s. The increased data transfer rate compared to previous DDR4 modules enables faster processing of memory-intensive workloads. The module's speed rating ensures optimal performance in multi-processor server configurations where memory bandwidth often becomes a critical bottleneck.

Physical Dimensions and Interface

The module utilizes a standard 288-pin DDR5 SDRAM form factor, specifically designed for server applications. The physical dimensions conform to industry standards while incorporating Lenovo-specific validation parameters. The pin configuration supports the enhanced signaling requirements of DDR5 technology, including improved power delivery and signal integrity characteristics.

Performance Features

DDR5 Technology Implementation

The Lenovo 03KL461 incorporates on-die Error Correction Code (ECC) capabilities, a fundamental feature of DDR5 technology. This implementation provides real-time error detection and correction at the DRAM device level, complementing traditional module-level ECC. The dual-layer error correction approach significantly enhances data integrity and system reliability, crucial for enterprise server environments where data corruption cannot be tolerated.

Power Management Innovations

DDR5 architecture introduces separated power rails with the implementation of Power Management IC (PMIC) on the memory module. This innovation allows for more precise voltage regulation and improved power efficiency. The 03KL461 module leverages this technology to optimize power consumption while maintaining consistent performance levels, contributing to overall server power efficiency and thermal management.

Performance Enhancement Features

Burst Length and Prefetch Architecture

The module employs a 16n prefetch architecture with burst length of 16, doubling the prefetch buffer size compared to DDR4 technology. This architectural improvement enables more efficient data transfer between the memory array and the I/O buffers, resulting in higher effective bandwidth utilization. The enhanced burst capability is particularly beneficial for server applications involving large sequential data accesses.

Data Rate and Timing Parameters

Operating at CL40 timing (CAS Latency 40) at the 4800MHz speed grade, the 03KL461 balances latency considerations with the increased bandwidth capabilities of DDR5 technology. The timing parameters are optimized for server workloads where both bandwidth and latency contribute to overall system performance. The module supports industry-standard JEDEC timing specifications while incorporating Lenovo-specific optimizations.

Reliability and Compatibility Features

Server-Grade Reliability Mechanisms

The module includes integrated temperature sensors that provide real-time thermal data to the system management controller. This capability enables proactive thermal management, allowing the server to adjust cooling strategies and performance parameters based on actual memory temperature conditions. The thermal monitoring feature is essential for maintaining optimal operating conditions in densely populated server configurations.

Signal Integrity Enhancements

Advanced signal integrity features include Decision Feedback Equalization (DFE) and improved on-die termination. These technologies combat signal degradation at high speeds, ensuring reliable data transmission between the memory controller and DRAM devices. The implementation of these features is critical for maintaining stability in server environments where memory subsystems operate continuously under varying load conditions.

Compatibility and System Integration

Supported Server Platforms

The 03KL461 memory module is validated for use across multiple Lenovo ThinkSystem server platforms, including the SR650, SR850, and SR860 models. Each compatible system undergoes extensive compatibility testing to ensure optimal performance and reliability. The module is specifically engineered to work seamlessly with Lenovo's system firmware and management infrastructure.

System-Specific Requirements

Compatibility extends to specific system requirements including minimum firmware levels, memory population rules, and performance profiles. The module supports Lenovo's memory mirroring, sparing, and other advanced reliability features when used in supported configurations. Proper installation following Lenovo's memory population guidelines is essential for optimal performance and compatibility.

Latency Characteristics and Optimization

While DDR5 typically operates at higher CAS latencies than previous generations, the architectural improvements including bank grouping and prefetch optimizations help mitigate the impact on real-world performance. The 03KL461's latency characteristics are optimized for server workloads where sustained bandwidth often outweighs pure latency considerations for overall system performance.

Workload-Specific Performance

OLTP Performance Characteristics

In Online Transaction Processing environments, the 03KL461 demonstrates strong performance characteristics due to its balanced bandwidth and capacity attributes. The module's error correction capabilities and reliability features are particularly valuable in database applications where data integrity is paramount. The 32GB capacity supports large buffer pool configurations, reducing I/O bottlenecks.

Data Warehouse and Analytics Performance

For data warehouse and analytical processing workloads, the module's high bandwidth capabilities enable faster data processing and reduced query times. The efficient handling of large data sets in memory accelerates analytical operations and supports in-memory database technologies. The reliability features ensure data integrity throughout extended processing operations.

ECC and Error Management

The module implements sophisticated Error Correction Code capabilities that can detect and correct single-bit errors while detecting multi-bit errors. This functionality occurs transparently to the operating system and applications, maintaining system stability despite memory errors. The error management capabilities include error logging and reporting through system management interfaces.