815098-B21 HPE 16GB PC4-21300 DDR4 SDRAM 2666mhz Cl19 Ecc Registered RAM

HPE 815098-B21 16GB DDR4-2666MHz ECC Registered Memory

Optimal Balance of Capacity and Performance for Enterprise Servers

The HPE 815098-B21 represents a strategic memory solution in HPE's server portfolio, delivering 16GB of high-performance DDR4-2666MHz memory with enterprise-grade reliability features. This PC4-21300 registered ECC memory module is engineered specifically for HPE ProLiant Gen10 and compatible server platforms, providing the ideal combination of capacity, speed, and data integrity for modern business applications and virtualized environments.

Advanced Memory Architecture

This 288-pin DDR4 SDRAM module operates at 2666MHz with PC4-21300 specifications, delivering exceptional bandwidth while maintaining CL19 latency characteristics optimized for server workloads. The 16GB capacity per module strikes an optimal balance for most enterprise applications, enabling substantial memory configurations without the premium cost associated with higher-density modules.

Performance and Efficiency Metrics

With a data transfer rate of 21.3 GB/s and 2666 million transfers per second, the HPE 815098-B21 provides significant performance advantages over lower-speed memory modules. This enhanced bandwidth is particularly beneficial for memory-intensive applications, database operations, and virtualized environments where multiple virtual machines compete for memory resources.

DDR4-2666MHz Technology Deep Dive

Enhanced Memory Architecture

The 2666MHz operating frequency represents the upper mainstream tier of DDR4 performance, offering approximately 11% higher bandwidth than 2400MHz modules while maintaining excellent compatibility with a broad range of server platforms. This speed enhancement delivers measurable performance improvements in latency-sensitive applications and multi-threaded workloads.

Operating at the standard DDR4 voltage of 1.2V, the HPE 815098-B21 consumes approximately 40% less power than equivalent DDR3 modules while delivering superior performance. This power efficiency directly translates to reduced data center operating costs, improved thermal characteristics, and support for higher memory densities within the same power envelope.

DDR4 technology incorporates sophisticated signal integrity features including data bus inversion (DBI), on-die termination (ODT), and pseudo-open drain (POD) signaling. These advancements enable reliable operation at higher frequencies while reducing simultaneous switching noise and improving overall system stability in demanding server environments.

CAS Latency 19 Performance Characteristics

Latency Optimization for Server Workloads

The CL19 (CAS Latency 19) timing represents an optimal balance between frequency and responsiveness for server applications. While higher-frequency modules may require looser timings, the 2666MHz CL19 combination provides excellent real-world performance for enterprise workloads where both bandwidth and latency contribute to overall system responsiveness.

Memory Timing Parameters

The HPE 815098-B21 utilizes carefully optimized timing parameters that ensure reliable operation while maximizing performance. These timings are specifically tuned for server workloads, which typically involve different access patterns compared to desktop or consumer applications, prioritizing stability and data integrity over absolute minimum latency.

ECC Registered DIMM Architecture

Error Correcting Code Technology

The HPE 815098-B21 incorporates advanced ECC capabilities that provide single-bit error correction and multi-bit error detection. This technology is crucial for maintaining data integrity in mission-critical applications, preventing silent data corruption, and ensuring system stability through automatic error correction without performance degradation.

ECC Implementation Details

Using sophisticated algorithms and additional memory bits, the ECC functionality continuously monitors memory operations, detecting and correcting errors in real-time. This proactive error management is transparent to applications and operating systems, providing uninterrupted service while maintaining data accuracy for business-critical operations.

Registered DIMM Advantages

Signal Buffering Benefits

As a registered DIMM (RDIMM), the HPE 815098-B21 includes a register that buffers address and command signals between the memory controller and DRAM chips. This buffering reduces the electrical load on the memory controller, enabling support for higher memory capacities per channel and improving signal integrity in configurations with multiple modules.

Scalability and Capacity Advantages

The registered architecture allows for significantly larger memory configurations compared to unbuffered modules. This scalability is essential for memory-intensive applications and virtualized environments where substantial memory resources are required to support multiple virtual machines or large datasets.

Compatibility and System Integration

Supported HPE Server Platforms

The HPE 815098-B21 is extensively validated for HPE ProLiant Gen10 servers and selected Gen10 Plus platforms, ensuring optimal performance and reliability when deployed in supported systems. This compatibility coverage includes a wide range of rack, tower, and blade server form factors.

ProLiant DL Series Compatibility

This memory module is fully compatible with HPE ProLiant DL series rack servers including the DL360 Gen10, DL380 Gen10, DL160 Gen10, and DL180 Gen10 models. The 16GB capacity is particularly well-suited for these platforms, providing flexible configuration options for various workload requirements.

ProLiant ML Series Support

HPE ProLiant ML series tower servers, including the ML350 Gen10 and ML110 Gen10, also support the 815098-B21 module. This compatibility makes it an excellent choice for small to medium businesses, remote offices, and departmental servers where tower form factors are preferred.

Optimal Memory Configuration Strategies

Population Rules and Channel Optimization

When configuring servers with HPE 815098-B21 modules, specific population rules must be followed to ensure optimal performance. These guidelines include proper slot sequencing, balanced memory distribution across CPU sockets in multi-processor systems, and correct population of memory channels to maximize available bandwidth and minimize latency.

Performance-Optimized Configurations

For best performance, modules should be installed in multiples that match the memory channel architecture of the server platform. This typically means installing modules in pairs or sets of three, depending on the specific server's memory architecture, to ensure all memory channels are populated symmetrically.

Real-World Application Performance

The combination of 16GB capacity, 2666MHz speed, and CL19 latency delivers exceptional performance across a wide spectrum of enterprise applications. Database systems demonstrate improved transaction throughput, virtualization platforms support higher VM densities, and business applications benefit from reduced response times and improved user experience.

In virtualized environments, the HPE 815098-B21 enables higher virtual machine densities with consistent performance characteristics. The 16GB module size allows for flexible memory allocation to virtual machines while maintaining sufficient overhead for the hypervisor and ensuring responsive performance during peak utilization periods.

Database servers utilizing this memory module experience improved query performance and reduced I/O wait times through more efficient caching of frequently accessed data. The high bandwidth supports concurrent user access and complex analytical queries, while the ECC protection ensures data integrity for critical database operations.

The HPE 815098-B21 incorporates sophisticated thermal monitoring and heat spreader technology to maintain optimal operating temperatures under varying load conditions. This thermal management ensures consistent performance during sustained operations and contributes to the module's long-term reliability in 24/7 data center environments.

Each HPE 815098-B21 module undergoes extensive testing and validation procedures to ensure compatibility, reliability, and performance. HPE's comprehensive testing regimen includes temperature cycling, signal integrity verification, compatibility testing across supported platforms, and long-term reliability testing to guarantee enterprise-grade quality.

The 16GB capacity of the HPE 815098-B21 makes it ideally suited for medium to large business environments where servers require substantial memory configurations for business-critical applications. These deployments typically include enterprise resource planning systems, customer relationship management platforms, and medium-density virtualization projects

For infrastructure servers supporting multiple business functions, the HPE 815098-B21 provides sufficient memory capacity for consolidated services while maintaining performance isolation between different applications. This consolidation capability helps reduce server sprawl and simplifies infrastructure management.

Departmental servers dedicated to specific business units or applications benefit from the 16GB capacity, which provides ample memory for dedicated applications while maintaining cost-effectiveness. These implementations leverage the module's compatibility with a wide range of HPE server platforms and workload requirements.

Specialized Workload Optimization

Virtual Desktop Infrastructure (VDI) Support

In VDI environments, the HPE 815098-B21 provides the memory capacity and performance required to support multiple virtual desktop instances with consistent user experience. The 16GB module size allows for efficient memory allocation while maintaining sufficient resources for the hypervisor and management components.

For collaboration platforms including email servers, unified communications systems, and team collaboration tools, the HPE 815098-B21 delivers the performance and reliability required for business-critical communication services. The ECC protection ensures data integrity for communication archives and user data.

Electrical and Performance Characteristics

The HPE 815098-B21 operates at 1.2V with a 2666MT/s data rate and carefully optimized timing parameters for server workloads. The module features advanced power management capabilities including per-bank refresh and data bus inversion, which improve power efficiency and signal integrity during operation.

With industry-standard timing parameters tuned for server applications, this memory module balances latency and bandwidth to deliver optimal performance across diverse enterprise workloads. The specific timing parameters are engineered for reliability in continuous operation environments while maintaining compatibility with supported HPE server platforms.

Physical Design and Construction Quality

Module Form Factor and Mechanical Specifications

The HPE 815098-B21 utilizes the standard 288-pin DIMM form factor with dimensions compliant with HPE server specifications. The module features a robust PCB construction with multiple layers for superior signal integrity and includes advanced thermal management features for reliable operation in demanding server environments.

Component Quality and Manufacturing Excellence

Constructed using premium components that meet HPE's stringent quality standards, this memory module is designed for long-term reliability in data center environments. The use of high-quality DRAM chips, rigorous manufacturing processes, and comprehensive testing ensures consistent performance throughout the product lifecycle.

Compatibility Verification and Documentation Resources

HPE offers extensive compatibility verification tools and comprehensive documentation to ensure proper integration of the 815098-B21 memory module with supported server platforms. These resources include detailed configuration guides, compatibility matrices, technical white papers, and best practice documentation for optimal deployment.

The HPE 815098-B21 complies with relevant industry standards and regulatory requirements, including RoHS directives for environmental safety, CE marking, and various international electrical safety standards. This compliance ensures that the modules can be deployed globally without regulatory concerns.

Manufactured under HPE's comprehensive quality management systems, the 815098-B21 adheres to strict quality control processes throughout design, manufacturing, and testing phases. These standards ensure consistent product quality and reliability that enterprise customers depend on for their critical infrastructure.

Compared to previous-generation DDR3 memory, the HPE 815098-B21 offers significant advantages in bandwidth, power efficiency, and performance per watt. These improvements translate to better overall system performance, reduced operational costs, and improved environmental characteristics for server deployments.

DDR4-2666 vs. Other DDR4 Speed Grades

Within the DDR4 ecosystem, the 2666MHz speed grade represents an optimal balance of performance, compatibility, and cost-effectiveness. While higher speed grades are available, 2666MHz maintains excellent compatibility with a broad range of server platforms while delivering substantial performance benefits over entry-level DDR4 speeds.

HPE Genuine Memory Advantages

HPE genuine memory modules like the 815098-B21 offer distinct advantages over third-party alternatives through extensive compatibility testing, firmware optimization, and comprehensive support services. These value-added features ensure optimal performance and reliability in HPE server environments, reducing deployment risks and support challenges.

While DDR4 technology continues to serve enterprise needs effectively, organizations should consider technology migration timelines when planning future server deployments. The HPE 815098-B21 represents a mature, reliable technology that will continue to support business-critical applications while providing a clear migration path to future memory technologies.