814790-B21 HPE 32GB Pc4-17000 2133Mhz SDRAM Ecc Reg DDR4 288-Pin Ram

HPE 814790-B21 32GB Pc4-17000 2133Mhz DDR4 Memory

Capacity and Architecture

The HPE 814790-B21 features a substantial 32GB memory capacity, engineered to handle demanding server workloads and data-intensive applications. This dual-rank module utilizes advanced DDR4 architecture with Error Correcting Code (ECC) functionality and registered buffering to ensure maximum data integrity and system stability. The module's design incorporates 4Gb DRAM components organized in a sophisticated arrangement that optimizes memory access patterns and reduces latency across various server workloads.

Speed and Performance Metrics

Operating at 2133MHz (PC4-17000), this memory module delivers a peak transfer rate of 17,000 MB/s per module. The 2133MHz speed represents the optimal balance between performance and power efficiency for enterprise environments. The module features CAS latency timings of CL15, ensuring responsive performance while maintaining the reliability standards required for 24/7 server operation. The advanced signal integrity features minimize timing errors and ensure consistent performance under varying load conditions.

Physical Characteristics and Compatibility

Form Factor and Dimensions

The HPE 814790-B21 utilizes the standard 288-pin DDR4 DIMM form factor with a length of 133.35mm and height of 31.25mm. The module features a single notch position that is specifically keyed to prevent insertion into incompatible memory slots. The gold-plated contact pins are designed for superior conductivity and corrosion resistance, ensuring reliable operation over thousands of insertion cycles. The physical design includes a balanced thermal profile that facilitates efficient heat dissipation across the entire module surface.

Voltage and Power

Operating at a reduced voltage of 1.2V compared to previous DDR3 generations, this memory module achieves significant power savings while maintaining high performance levels. The integrated power management IC provides precise voltage regulation and supports advanced power-saving states including self-refresh and partial array self-refresh modes. These features enable the module to dynamically adjust power consumption based on system demand, contributing to overall data center energy efficiency.

ECC Technology Implementation

The HPE 814790-B21 incorporates sophisticated Error Correcting Code (ECC) technology that can detect and correct single-bit errors in real-time, while also detecting multi-bit errors. This advanced error correction capability is crucial for maintaining data integrity in mission-critical applications and preventing silent data corruption. The ECC algorithm operates transparently to the operating system and applications, providing an additional layer of data protection without performance penalties.

Registered Buffer Advantages

Featuring registered (buffered) architecture, this memory module includes advanced register buffers that reduce electrical load on the memory controller by buffering command and address signals. This design enables support for higher memory capacities per channel and improves signal integrity in multi-DIMM configurations. The registered design is particularly beneficial in multi-processor systems where memory controller loading can impact overall system stability and performance scalability.

Each HPE 814790-B21 module includes a precision thermal sensor that continuously monitors operating temperature. This sensor provides real-time temperature data to the system management controller, enabling proactive thermal management through dynamic cooling control and performance throttling when necessary. The thermal monitoring system helps prevent thermal-related failures and ensures optimal operating conditions throughout the module's lifespan.

Cooling Optimized Design

The module features an optimized component layout that promotes efficient airflow and heat dissipation. The memory chips are arranged to minimize thermal hotspots, and the PCB incorporates thermal vias that transfer heat from component layers to the outer surfaces. This design consideration is particularly important in high-density server configurations where airflow may be restricted, ensuring reliable operation even in challenging thermal environments.

Compatibility and System Integration

ProLiant Generation 9 Compatibility

The HPE 814790-B21 is fully certified for use in HPE ProLiant Gen9 servers, including the DL380 Gen9, DL360 Gen9, and BL460c Gen9 models. These systems leverage the memory module's advanced features through integrated firmware that optimizes performance and reliability. The module undergoes extensive compatibility testing with these platforms to ensure seamless integration and optimal performance across the entire operating range.

Synergy and Apollo System

This memory module is also compatible with HPE Synergy and Apollo server systems, providing the high-performance memory foundation required for composable infrastructure and high-performance computing workloads. The module's advanced management features integrate with HPE OneView management platform, providing comprehensive visibility into memory health and performance metrics across the infrastructure.

For optimal performance, HPE recommends specific population guidelines when configuring systems with the 814790-B21 modules. These guidelines ensure proper memory interleaving and channel balancing across CPU sockets. The modules should be installed in matched sets per processor, with careful attention to slot sequencing to maximize memory bandwidth and minimize access latency. The system firmware provides validation and configuration assistance during the boot process.

Mixed Configuration

While the HPE 814790-B21 can be mixed with other HPE-certified memory modules, certain considerations apply to maintain system performance and reliability. Mixed configurations should maintain consistent speed, latency, and voltage characteristics across all installed modules. The system will operate at the speed of the slowest module, and ECC functionality must be consistent across all memory in the configuration.

In database workload testing, the HPE 814790-B21 demonstrates exceptional performance characteristics for OLTP and data warehousing applications. The combination of 2133MHz speed, ECC protection, and registered architecture provides the necessary bandwidth and reliability for demanding database environments. Performance metrics show consistent sub-100ns access times under varying load conditions, with minimal performance degradation during sustained operations.

Virtualization and Cloud Applications

For virtualization workloads, this memory module supports high virtual machine density with stable performance across mixed workloads. The advanced memory management features work in conjunction with hypervisor memory optimization techniques such as transparent page sharing and memory ballooning. Testing demonstrates efficient handling of memory-intensive virtualized applications while maintaining the isolation and security requirements of multi-tenant environments.

The HPE 814790-B21 undergoes rigorous reliability testing to ensure enterprise-grade durability. Accelerated life testing demonstrates a MTBF exceeding 2 million hours under typical server operating conditions. This exceptional reliability is achieved through stringent component selection, advanced PCB design, and comprehensive thermal management that collectively minimize aging effects and ensure long-term stability.

HPE InfoSight Predictive Analytics

Compatible with HPE InfoSight cloud-based analytics, this memory module contributes to the overall system health monitoring and predictive maintenance ecosystem. InfoSight collects and analyzes memory performance data across the infrastructure, identifying patterns that may indicate developing issues and providing recommendations for optimization and preventive maintenance.

Security and Data Protection

Firmware Validation and Security

The HPE 814790-B21 includes firmware that undergoes rigorous security validation to prevent unauthorized modification. The module supports secure boot processes and firmware integrity checking, ensuring that memory initialization code has not been compromised. These security features are particularly important in regulated industries and multi-tenant environments where data isolation is critical.

Data Protection Features

Beyond ECC protection, the memory module supports advanced data protection schemes including memory mirroring and sparing when used in supported server configurations. These features provide additional layers of redundancy for mission-critical applications, allowing systems to continue operation even in the event of memory component failures. The protection mechanisms operate transparently to applications while maintaining data integrity.

Additional service coverage is available through HPE Care Pack services, extending support beyond the standard warranty period. These services include proactive monitoring, technical consulting, and defined response times tailored to business criticality. The modular design facilitates efficient field replacement with minimal system downtime when service is required.

Comprehensive Documentation

Detailed technical documentation for the HPE 814790-B21 is available through the HPE Information Library, including specifications, compatibility matrices, installation guidelines, and troubleshooting resources. The documentation is regularly updated to reflect firmware enhancements and compatibility with new server platforms.

Configuration and Integration Tools

HPE provides comprehensive configuration tools including the HPE Memory Configuration Tool, which assists in designing optimal memory configurations for specific workload requirements. These tools consider factors including performance objectives, reliability requirements, and budget constraints to recommend balanced memory configurations.