P64986-B21 HPE 64GB Dual Rank X4 Ddr5-6400mt/s Pc5-51200 Memory.

High-Speed Performance with DDR5-6400MT/s Architecture

The DDR5-6400MT/s speed offered by the HPE P64986-B21 module represents a significant leap forward compared to DDR4 technology. With a transfer rate of up to 51.2 GB/s per module, this memory is designed to handle data-intensive workloads with minimal latency and enhanced bandwidth. Whether you’re running large-scale virtual machines, real-time analytics, or in-memory databases, the DDR5 architecture ensures your system remains responsive under pressure.

PC5-51200: The New Standard for Enterprise Memory Bandwidth

The PC5-51200 rating corresponds to the memory's peak throughput, delivering unmatched data transfer capabilities. This is ideal for servers deployed in high-demand data center environments, providing the throughput needed to manage expanding datasets and rapid transaction processing. This high-speed interface significantly outperforms the older DDR4-3200 or DDR4-2933 modules, making it essential for next-gen servers.

Reduced Latency and Enhanced Clock Cycles

With a CAS latency (CL) of 46, this module balances latency with high throughput, offering exceptional read/write access times. The improved memory access pattern inherent to DDR5 architecture ensures better memory interleaving and efficiency at higher frequencies, even with dual-rank modules.

Advanced Reliability with ECC and Registered Memory Design

Enterprise environments demand memory that not only performs well but also ensures system reliability. The HPE P64986-B21 Smart Memory module incorporates ECC (Error Correction Code) technology and is fully registered (RDIMM), helping detect and correct single-bit memory errors in real-time. This is critical for applications where data integrity and uptime are non-negotiable, such as financial modeling, scientific simulations, and healthcare systems.

ECC Functionality for Error-Free Data Processing

ECC functionality allows the module to automatically detect and correct common memory errors without affecting performance. This is crucial for mission-critical systems, as it prevents data corruption and reduces system crashes caused by memory faults. It’s especially useful in cloud infrastructure, where memory errors can propagate across multiple virtual instances.

Registered (Buffered) Design Enhances Signal Integrity

The registered (buffered) design of this RDIMM adds a register between the DRAM and memory controller, helping to maintain signal integrity and stability during high-speed operations. It also reduces electrical load on the memory controller, allowing servers to scale to higher memory densities without sacrificing reliability.

Dual Rank x4 Architecture for Greater Data Throughput

The HPE P64986-B21 is a Dual Rank x4 DIMM, meaning each memory module contains two ranks of x4 DRAM chips. This configuration provides a balance between capacity, performance, and error correction, making it ideal for workloads requiring high memory bandwidth. The dual-rank structure enhances parallelism in memory access, improving overall server responsiveness.

Optimized for Server Environments

The x4 DRAM organization is preferred in enterprise settings because it supports Advanced ECC modes and reduces the likelihood of chip failure. Combined with dual rank layout, it ensures that memory interleaving is optimized for throughput without compromising redundancy or integrity.

Low Voltage 1.1V Design for Energy-Efficient Operations

Power consumption is a significant concern in large-scale deployments. This 64GB DDR5 memory module operates at just 1.1V, offering lower power consumption than previous generations. This low-voltage design translates into reduced heat output and operating costs, especially when deployed across multiple servers in a data center.

Cost Savings in Energy and Cooling

Lower power requirements not only contribute to greener IT practices but also reduce total cost of ownership (TCO). In high-density environments, the savings from using 1.1V memory modules like the HPE P64986-B21 accumulate quickly, helping enterprises meet both budgetary and environmental targets.

288-Pin DIMM Interface for Modern Server Compatibility

The module uses the industry-standard 288-pin layout, ensuring physical and electrical compatibility with modern DDR5-enabled server motherboards, especially across HPE ProLiant Gen11 series. This standard also supports future scalability and system upgrades, making it a long-term investment for forward-looking IT infrastructures.

Supports HPE Smart Memory Features

As an HPE Smart Memory product, the P64986-B21 integrates seamlessly with HPE server BIOS and management software. Features like pre-boot diagnostics, performance tuning, and advanced error reporting are enabled through this tight integration, ensuring optimal memory performance and system stability.

Improved System Diagnostics and Lifecycle Management

HPE Smart Memory modules are validated with specific server platforms and enable enhanced monitoring capabilities via HPE iLO (Integrated Lights Out) and OneView software. These tools allow administrators to identify failing modules proactively and manage memory health more effectively over the server’s lifespan.

Ideal Applications and Use Cases

The HPE P64986-B21 64GB DDR5-6400 RDIMM is suitable for a wide range of enterprise-grade applications, including high-performance computing, data center virtualization, in-memory database operations, real-time analytics, and AI model training. Its performance and reliability characteristics make it a preferred choice for industries such as finance, healthcare, e-commerce, scientific research, and telecommunications.

Cloud and Virtualized Environments

Virtualized environments require high memory bandwidth and capacity to support multiple workloads per server. This module enables dense memory configurations that reduce the need for frequent memory swapping and paging, improving VM responsiveness and consolidation ratios.

In-Memory Database Systems

Applications like SAP HANA, Oracle TimesTen, and Microsoft SQL Server benefit immensely from high-capacity, low-latency memory. With 64GB per DIMM and exceptional speed, this module accelerates query response times and supports larger working datasets in memory, boosting database performance.

Scientific and Technical Computing

Workloads in fields like genomics, meteorology, and computational fluid dynamics (CFD) are often memory-bound. The HPE P64986-B21 enables simulations and data modeling tasks to run faster and more efficiently by minimizing memory-related bottlenecks and maximizing throughput.

Compatibility and Deployment Considerations

The P64986-B21 is specifically qualified for use with HPE Gen11 ProLiant servers, including the DL360, DL380, and ML350 series. When deploying in multi-module configurations, it is essential to match memory ranks, speeds, and voltage to maintain system stability and performance.

Scalable Memory Deployment in Rack Servers

With support for high-capacity memory configurations, IT administrators can populate servers with multiple 64GB modules to scale up to terabytes of RAM. This flexibility enables dynamic workload management across virtualized clusters and containerized applications.

Firmware and BIOS Optimization

Ensuring that the server’s BIOS and firmware are updated to the latest version helps unlock the full performance potential of DDR5 memory. HPE provides tools and release notes to guide administrators through compatibility checks and performance tuning.

Benefits of Using HPE Certified Smart Memory

HPE Smart Memory undergoes rigorous testing and validation for quality, performance, and compatibility. Unlike generic third-party memory modules, HPE-certified DIMMs provide peace of mind in terms of stability and support. Additionally, using HPE memory ensures warranty continuity for HPE ProLiant servers.

Minimized Downtime and Faster Issue Resolution

HPE’s tight integration of Smart Memory with system tools allows for proactive failure detection and rapid troubleshooting. This minimizes downtime and allows IT teams to address potential memory issues before they escalate.

Supports HPE Tech Care Services

Memory issues covered under HPE Tech Care and other support contracts are prioritized when using certified components like the P64986-B21. This helps enterprises maintain SLAs and avoid costly service delays.

Future-Proofing Your Data Center with DDR5 Smart Memory

As workloads become more demanding and applications require real-time performance at scale, investing in DDR5 Smart Memory is a strategic decision. The HPE P64986-B21 module allows your infrastructure to evolve with growing memory needs while keeping operational costs in check.

DDR5 as the Foundation of Next-Gen Infrastructure

Transitioning to DDR5 is not just about speed—it’s about laying the groundwork for future innovations in server architecture. Higher capacity per DIMM, faster data channels, and advanced error correction make DDR5 the ideal platform for AI-driven workloads and edge computing.

Invest in Quality, Performance, and Peace of Mind

Choosing genuine HPE memory ensures your data center remains resilient and responsive to business needs. The P64986-B21 64GB Smart Memory DIMM is not just a component—it’s an enabler of performance excellence and operational agility.