S5D52A HPE 128GB 4800MT/s PC5-38400 Cl40 ECC Ddr5 Memory.

HPE S5D52A 128GB DDR5 ECC Registered Memory Module Overview

The HPE S5D52A 128GB 4800MT/s PC5-38400 CL40 ECC DDR5 memory module represents a new era in high-performance server memory technology. Designed specifically for enterprise-grade HPE servers, this DDR5 Registered DIMM (RDIMM) delivers unparalleled data throughput, stability, and error correction capability. As part of Hewlett Packard Enterprise's latest memory product line, this sealed new-in-box (NIB) component ensures optimal compatibility and top-tier reliability for data-intensive workloads.

Advantages of 128GB DDR5 Registered ECC Memory in Enterprise Servers

In server environments, large memory capacity and data integrity are crucial. The HPE S5D52A 128GB DDR5 module offers significant performance boosts over DDR4, including a higher base frequency, reduced latency, and improved bandwidth. With ECC functionality, this memory module actively corrects single-bit memory errors and detects multi-bit errors, which is essential for mission-critical applications in data centers, cloud computing, and high-performance computing (HPC).

Bandwidth and Speed Improvements with DDR5 Technology

DDR5 introduces dramatic enhancements over previous generations. With a native data rate of 4800MT/s, the HPE S5D52A enables faster access to larger datasets, reducing CPU wait time and boosting application performance. The 128GB density of this RDIMM module allows servers to handle greater workloads, including virtualization, machine learning, and big data analytics, without bottlenecks.

ECC (Error Correction Code) Reliability

ECC memory is a cornerstone of server stability. It prevents data corruption by detecting and correcting single-bit memory errors, which are common in high-density configurations. The HPE S5D52A includes advanced ECC algorithms that ensure continuous uptime, data accuracy, and system health. This makes it ideal for finance, healthcare, scientific research, and any environment where data precision is non-negotiable.

PC5-38400 Speed Classification and What It Means

PC5-38400 is a speed rating that reflects the theoretical maximum bandwidth of 38.4GB/s per module. This speed class aligns with the DDR5-4800 specification and is fully compatible with the latest HPE Gen10 Plus and Gen11 server platforms. This high bandwidth ensures that servers utilizing this module can support demanding multitasking environments and memory-bound operations.

Server Compatibility with HPE S5D52A 128GB DDR5

The S5D52A is validated for use in a wide range of HPE servers including the HPE ProLiant DL380 Gen11, HPE ProLiant DL360 Gen11, and HPE Apollo systems. Compatibility extends to any HPE system supporting DDR5 Registered DIMMs, and using these certified modules guarantees optimal BIOS integration, firmware updates, and support.

Applications and Use Cases for HPE S5D52A 128GB DDR5 ECC Memory

Data Center and Virtualization Deployments

Virtualized environments benefit significantly from large-capacity DDR5 ECC RDIMMs. With 128GB per module, system administrators can reduce the number of DIMMs needed to reach maximum capacity, allowing better heat distribution and power efficiency. HPE S5D52A supports high-density virtual machines, database servers, and multi-tenant cloud infrastructure with reduced latency and improved scalability.

AI and Machine Learning Optimization

For artificial intelligence workloads, such as neural network training and inference, memory throughput and size directly affect performance. The 4800MT/s data rate and 128GB capacity per DIMM mean large models and datasets can reside entirely in memory, minimizing read/write delays and ensuring smooth pipeline execution.

High-Frequency Trading and Financial Systems

Financial services require high-speed data processing and absolute accuracy. The ECC capabilities and low-latency performance of the HPE S5D52A memory ensure no data corruption occurs, even during peak transaction loads. The module’s reliability and speed make it ideal for applications involving real-time risk analysis, automated trading, and compliance auditing.

Scientific Computing and Engineering Simulations

Scientific workloads demand massive memory footprints and sustained performance. The S5D52A’s DDR5 architecture supports higher burst lengths and dual-channel DIMM architectures that allow engineers and researchers to simulate, calculate, and analyze large-scale models in physics, meteorology, and genomics without memory-related delays.

Enterprise Resource Planning (ERP) and Business Intelligence (BI)

ERP platforms such as SAP HANA and Oracle Database perform optimally when system memory is abundant and fast. The HPE S5D52A 128GB DDR5 module supports in-memory computing by providing sufficient capacity and bandwidth for analytics, reporting, and forecasting in real time.

Increased Capacity per Module

DDR5 allows for significantly greater module densities compared to DDR4. While DDR4 modules typically max out at 64GB, DDR5 supports up to 128GB and beyond per module, as demonstrated by the S5D52A. This makes DDR5 ideal for memory-constrained workloads.

Improved Power Efficiency

With an operating voltage of just 1.1V, the HPE DDR5 RDIMM reduces overall server power consumption. This lower voltage translates into reduced thermal output, which is beneficial for energy-conscious data centers aiming to meet environmental compliance or reduce operating costs.

On-Die ECC and Enhanced RAS

DDR5 introduces on-die ECC, which works in conjunction with the traditional ECC features to provide a two-tiered memory error management system. The HPE S5D52A also includes enhanced Reliability, Availability, and Serviceability (RAS) features for mission-critical deployments.

Thermal Management

The module includes integrated thermal sensors that support HPE's intelligent cooling algorithms. This ensures optimal airflow control within server chassis and prevents overheating, even under sustained high-memory workloads.

Ordering and Procurement Details

Part Number and Labeling Information

The HPE S5D52A part number uniquely identifies this specific 128GB DDR5 ECC RDIMM. Always verify that the product label includes the full part number, memory size, speed rating (4800MT/s), and ECC indication to ensure you are receiving the correct module.

Bulk Availability for IT Integrators

For system integrators, cloud solution providers, and IT resellers, the HPE S5D52A is available in sealed tray packs or individual boxes. OEM partnerships ensure consistent availability and supply-chain transparency, making it suitable for data center expansions or system refresh projects.

Inventory Identification and Verification

HPE provides serialization and barcode identification on each module for asset tracking. Modules can be scanned into inventory systems using standard asset management tools. Each module’s firmware can also be validated using HPE’s diagnostic utilities to ensure authenticity.