P05588-B21 HPE 16GB DDR4-2666MHz Reg ECC CL19 Ram

Highlights of HPE P05588-B21 16GB DDR4 2666MHz ECC Ram

The HPE P05588-B21 16GB DDR4 2666MHz PC4-21300 ECC Registered Memory Module is engineered to deliver dependable performance, improved data integrity, and enhanced efficiency for enterprise servers. Designed for modern HPE systems, this DDR4 server memory module provides fast data processing and stable operation for demanding workloads such as virtualization, database management, and cloud computing.

General Information

• Manufacturer: HPE
• Part Number: P05588-B21
• Product Category: Server Memory Module
• Memory Sub-Type: DDR4 2666MHz PC4-21300
• Form Factor: 288-Pin RDIMM

Technical Specifications

• Capacity: 16GB
• Number of Modules: 1 x 16GB
• Memory Technology: DDR4 SDRAM
• Form Factor: 288-Pin RDIMM

Performance Specifications

• Bus Speed: 2666MHz DDR4
• Memory Standard: PC4-21300
• CAS Latency: CL19
• Rank Type: 2Rx8
• Error Checking: ECC
• Signal Processing: Registered

Physical Characteristics

• Form Factor: 288-pin RDIMM
• Shipping Height: 1.00 inch
• Shipping Depth: 6.75 inch
• Shipping Weight: 0.20 lb

Reliable DDR4 2666MHz Performance

Performance Advantages

• Memory speed: 2666MHz
• Bandwidth standard: PC4-21300
• CAS latency: CL19
• Improved system responsiveness

Compatibility

Compatible HPE ProLiant Servers

• HPE ProLiant DL580 Gen10 Server
• HPE ProLiant DL380 Gen10 Server
• HPE ProLiant DL360 Gen10 Server
• HPE ProLiant DL560 Gen10 Server
• HPE ProLiant ML350 Gen10 Server
• HPE ProLiant ML110 Gen10 Server
• HPE ProLiant XL190r Gen10 Server

Compatible HPE Synergy Compute Modules

• HPE Synergy 660 Gen10 Compute Module
• HPE Synergy 480 Gen10 Compute Module

Overview of HPE P05588-B21 16GB DDR4 2666MHz Memory

The HPE P05588-B21 16GB DDR4 2666MHz PC4-21300 Reg ECC CL19 288-Pin Memory Module is engineered for enterprise-grade server environments that require reliability, stability, and efficient memory performance. Designed specifically for HPE ProLiant server systems, this DDR4 registered memory module offers a powerful balance of speed, capacity, and error protection for mission-critical workloads. Organizations that operate virtual machines, cloud infrastructure, database servers, and high-demand applications rely on dependable memory modules like the HPE P05588-B21 to maintain continuous uptime and optimized processing performance.

High-Performance DDR4 Memory Architecture

DDR4 technology represents a major advancement in server memory architecture, offering higher bandwidth and improved energy efficiency compared to previous DDR generations. The HPE P05588-B21 memory module utilizes DDR4 SDRAM technology to support faster data processing while maintaining lower power consumption. This design ensures that enterprise servers can handle demanding workloads while keeping operational costs manageable.

Advantages of DDR4 Server Memory

DDR4 server memory offers several architectural improvements over earlier memory standards. The HPE P05588-B21 module leverages these advancements to deliver consistent performance in enterprise data centers. Higher transfer rates enable processors to access system memory faster, while improved signaling technology enhances stability during continuous operation. DDR4 memory also introduces enhanced bank grouping and improved command scheduling, which helps increase memory efficiency in multi-threaded server environments. These improvements allow server processors to handle concurrent requests without experiencing significant bottlenecks.

ECC Registered Memory for Enterprise Reliability

The HPE P05588-B21 module includes ECC (Error Correcting Code) technology, which plays a critical role in maintaining data integrity. In enterprise server environments where data accuracy is crucial, ECC memory automatically detects and corrects minor memory errors before they affect system performance. This capability is particularly important for financial systems, enterprise databases, virtualization environments, and mission-critical applications.

Registered DIMM Technology Explained

The P05588-B21 module is a registered DIMM, commonly referred to as RDIMM. Registered memory includes a register chip that buffers signals between the memory module and the server memory controller. This buffering mechanism improves signal integrity and allows servers to support a larger number of memory modules without compromising stability. In large-scale enterprise systems where multiple DIMMs are installed across many memory channels, RDIMM technology helps maintain consistent communication between the processor and memory modules. The buffering process reduces electrical load on the memory controller, ensuring stable performance even when the server operates with high memory density.

Benefits for Data Center Environments

Data centers rely on RDIMM modules because they enable higher memory scalability while maintaining reliable performance. The HPE P05588-B21 module supports large memory configurations in compatible HPE ProLiant servers, allowing organizations to expand their memory infrastructure as workloads grow. With RDIMM technology, administrators can populate more DIMM slots while maintaining system stability. This capability is essential for enterprise workloads such as virtualization clusters, enterprise resource planning systems, and large database platforms.

PC4-21300 Memory Bandwidth and Data Transfer Performance

The PC4-21300 designation indicates the memory module's theoretical peak bandwidth of approximately 21.3 GB/s. This bandwidth allows the server processor to read and write data at high speeds, enabling faster application processing and improved system responsiveness. High memory bandwidth is especially important in multi-core server environments. Modern processors rely heavily on memory throughput to maintain efficient operation across multiple cores and threads. The HPE P05588-B21 module ensures that each core can access memory resources quickly, preventing performance bottlenecks.

Multithreaded Workloads

Enterprise servers frequently run dozens or even hundreds of concurrent processes. These workloads demand high-speed memory access to maintain smooth operation. The 2666MHz speed of the HPE P05588-B21 module supports high-performance computing tasks such as virtualization management, big data analytics, machine learning frameworks, and complex database queries. Multithreaded workloads benefit significantly from improved memory bandwidth. Faster memory access allows applications to retrieve data quickly, improving overall system throughput and reducing application response times.

Impact on Performance

Virtualization platforms rely heavily on system memory because each virtual machine requires dedicated RAM resources. The HPE P05588-B21 module provides reliable memory performance for hypervisor environments running multiple virtual machines simultaneously. With 16GB of capacity per module, administrators can build scalable virtualization infrastructure by installing multiple memory modules across server channels. This allows enterprise IT teams to support growing workloads while maintaining consistent system performance.

CL19 Latency and Memory Timing

The CAS latency rating of CL19 represents the number of clock cycles required for the memory module to respond to a read command. While memory speed determines bandwidth, latency determines how quickly the module can begin transferring requested data. The HPE P05588-B21 module balances high speed and optimized latency to deliver efficient performance for enterprise workloads. Lower latency helps reduce delays in memory access, allowing the processor to retrieve data more quickly. This improves overall application responsiveness, particularly in environments where real-time processing is essential.

Importance of Memory Timing in Server Workloads

Memory timing parameters play a crucial role in server performance. Properly optimized memory modules ensure smooth communication between the processor and system memory. The CL19 timing of the HPE P05588-B21 module is carefully designed to provide stable performance across supported HPE server platforms. Consistent latency performance is particularly valuable in environments such as database servers and analytics systems, where rapid memory access directly influences application speed.

288-Pin DIMM Design and Physical

The HPE P05588-B21 memory module features a 288-pin DIMM form factor, which is standard for DDR4 server memory. This physical configuration allows the module to fit into compatible DDR4 memory slots on HPE ProLiant server motherboards. The 288-pin design ensures secure connectivity and reliable signal transmission between the memory module and the system. Server hardware manufacturers adopt standardized DIMM layouts to ensure compatibility across multiple generations of enterprise servers. The P05588-B21 module is designed to integrate seamlessly with supported systems, simplifying installation and upgrades.

Thermal Design

Enterprise servers operate continuously, often running demanding workloads around the clock. Effective thermal management is essential to maintain stable performance and protect hardware components. The HPE P05588-B21 module is engineered with a thermal design that supports consistent operation in high-density server environments. Efficient heat dissipation ensures that the memory module maintains optimal operating temperatures even during sustained workloads. This helps extend hardware lifespan and reduces the risk of performance degradation caused by thermal stress.

HPE ProLiant Servers

The HPE P05588-B21 memory module is designed for compatibility with a wide range of HPE ProLiant server systems. These enterprise servers are widely used in data centers, enterprise IT infrastructures, and cloud hosting environments. By using genuine HPE memory modules, organizations ensure full compatibility with system firmware, BIOS configurations, and hardware monitoring tools. HPE-certified memory modules undergo rigorous validation testing to ensure they meet strict reliability standards. This testing process ensures that the P05588-B21 module operates flawlessly within supported server configurations.

Firmware Integration

HPE servers incorporate advanced firmware that monitors hardware components and maintains system stability. When genuine HPE memory modules such as the P05588-B21 are installed, the server firmware can accurately detect and manage the memory configuration. This integration allows administrators to monitor system health and optimize memory performance.

Scalable Memory Expansion

Enterprise IT environments frequently require scalable infrastructure to support business growth. The HPE P05588-B21 module allows organizations to expand server memory capacity as workloads increase. By installing additional modules across available DIMM slots, administrators can gradually increase memory resources without replacing the entire server.

Reliability for Mission-Critical Applications

Enterprise workloads demand consistent performance and reliability. The HPE P05588-B21 module is built with high-quality components and undergoes extensive testing to ensure dependable operation in mission-critical environments. This reliability is essential for industries such as finance, healthcare, telecommunications, and cloud services. Servers supporting critical applications must operate without interruption. Memory failures or data corruption can lead to system downtime and business disruptions. ECC technology combined with HPE’s strict quality control ensures that the P05588-B21 module maintains stable operation even under heavy workloads.

Continuous Operation in Data Centers

Modern data centers operate around the clock, providing services to users across the globe. Memory modules in these environments must withstand constant utilization while maintaining consistent performance. The HPE P05588-B21 module is designed to meet these demands, supporting long-term reliability in high-performance server infrastructures.

Ideal Workloads for HPE 16GB DDR4 2666MHz ECC Memory

The HPE P05588-B21 memory module is well suited for a wide range of enterprise workloads that require dependable memory performance. Server environments hosting virtual machines benefit from the module’s capacity and bandwidth, allowing multiple operating systems to run simultaneously without memory bottlenecks. Database servers also benefit from fast and reliable memory modules. High-speed DDR4 memory allows database engines to cache frequently accessed data, reducing storage access delays and improving query performance.

Cloud Infrastructure and Web Hosting

Cloud platforms and web hosting services depend heavily on server memory to manage multiple users and applications simultaneously. The HPE P05588-B21 module provides the stability and speed required for these dynamic environments. Hosting providers can allocate memory resources to virtual servers while maintaining consistent performance across their infrastructure.

Big Data and Analytics Processing

Data analytics platforms process enormous datasets to generate insights and support decision-making processes. High-performance memory modules such as the HPE P05588-B21 enable faster data access and improved processing efficiency for analytics workloads. Large-scale data analysis often involves reading and writing massive volumes of information. Reliable DDR4 memory helps ensure that analytics applications can process data efficiently without encountering memory-related performance limitations.

Enterprise Quality Assurance and Testing

HPE memory modules undergo strict testing procedures before they are approved for enterprise use. The P05588-B21 module is validated through extensive performance and compatibility tests to ensure it meets the high standards expected from HPE server hardware. Quality assurance testing includes thermal stress testing, signal integrity analysis, and long-duration workload simulations. These tests ensure that the memory module maintains consistent performance under real-world operating conditions.

Long-Term Hardware Stability

Enterprise IT infrastructure investments must remain reliable for many years. The HPE P05588-B21 module is designed to provide long-term stability and durability, allowing organizations to maintain dependable server performance throughout the hardware lifecycle.

Improved System Uptime

High-quality memory modules contribute directly to improved system uptime. By reducing the likelihood of memory-related errors or hardware failures, the P05588-B21 module helps maintain uninterrupted service for critical applications.

Strategic Benefits of Genuine HPE Memory Modules

Using genuine HPE memory modules offers significant advantages compared to generic alternatives. The P05588-B21 module is specifically designed and validated for HPE server platforms, ensuring seamless integration and maximum reliability. HPE-certified memory modules also support advanced diagnostic tools and system monitoring features available in HPE servers. These tools allow administrators to detect potential issues early and maintain optimal system health.

Enterprise Infrastructure

Organizations investing in enterprise server infrastructure require components that deliver dependable performance. The HPE P05588-B21 memory module contributes to optimized server performance, enabling businesses to handle increasing workloads while maintaining efficient resource utilization.