819880-B21 HPE 8GB DDR4 2133Mhz Sdram Ecc Udimm Memory Module

HPE 819880-B21 8GB DDR4 UDIMM 2133Mhz Rank X8 Memory

Core Memory Technology

Unbuffered ECC DDR4 Architecture

The HPE 819880-B21 represents a sophisticated implementation of Unbuffered DDR4 memory with integrated Error Correcting Code (ECC) technology. Unlike registered (RDIMM) or load-reduced (LRDIMM) memory modules, UDIMMs operate without additional register chips between the memory controller and DRAM components. This architecture provides lower latency access while maintaining critical data integrity through single-bit error correction and double-bit error detection. The x8 DRAM device organization offers optimal balance between performance, reliability, and compatibility for entry-level server and workstation platforms.

Single Rank Design Advantages

As a single-rank module, the 819880-B21 contains one set of memory chips that are accessible simultaneously by the memory controller. This design reduces electrical load on the memory bus compared to dual-rank or quad-rank modules, enabling potentially higher operating frequencies in supported systems. The single-rank configuration is particularly beneficial in systems with limited memory controller capabilities or when maximizing memory speed is prioritized over maximum capacity per module.

Performance Specifications

Speed and Timing Characteristics

Operating at 2133MHz (PC4-17000) with CAS Latency 15 timing, this memory module delivers a peak bandwidth of 17,000 MB/s per module. The timing configuration of CL15-15-15 at 1.2V represents an optimal balance between performance and power efficiency for the DDR4-2133 speed grade. These specifications ensure responsive performance for a wide range of business-critical applications while maintaining compatibility with the Intel Xeon E3-1200 v5/v6 and similar processor families that support unbuffered ECC memory.

Voltage and Power

The module operates at the standard DDR4 voltage of 1.2V, representing a significant reduction from previous generation DDR3 memory (1.5V). This lower voltage translates to reduced power consumption and heat generation, contributing to overall system efficiency. Advanced power management features include Device Temperature Refresh (DTR), Automatic Self Refresh (ASR), and Maximum Power Saving Mode, which dynamically adjust power states based on system workload and thermal conditions.

Compatibility and System Integration

Supported HPE Platforms

ProLiant Gen9 and Gen10 Systems

The HPE 819880-B21 is specifically validated for use in HPE ProLiant ML110, ML150, and ML350 Gen9/Gen10 towers, as well as select DL entry-level rack servers. This module is engineered for systems utilizing Intel Xeon E3-1200 v5/v6 processors and compatible chipsets that support unbuffered ECC memory configurations. The memory undergoes rigorous platform-specific validation to ensure optimal performance and reliability in HPE's ecosystem.

Workstation and Specialized System Compatibility

Beyond traditional servers, this UDIMM is compatible with HPE Z Workstations and specialized computing platforms that require ECC protection for data-intensive applications. The unbuffered design makes it suitable for systems where low latency is critical, such as financial modeling, engineering simulation, and media production environments. Compatibility extends to systems running both Windows and Linux operating systems with proper ECC support.

Memory Configuration

For optimal performance in supported systems, the 819880-B21 should be installed in a balanced configuration across memory channels. Most compatible platforms require installation in pairs (dual-channel mode) or multiples of three (triple-channel mode, where supported) to maximize memory bandwidth. HPE provides specific population sequences in system documentation, typically starting with the lowest-numbered memory slots per channel. Maximum supported configurations vary by platform but generally range from 64GB to 128GB total system memory.

Mixed Configuration Considerations

While identical modules are recommended for optimal performance, the 819880-B21 can typically operate with other HPE-certified UDIMMs of the same speed grade, though systems may operate all memory at the speed of the slowest module. Mixing single-rank and dual-rank modules in the same channel is generally not recommended as it can impact signal integrity and performance. HPE's UEFI System Utilities provide memory configuration validation during boot sequence.

ECC Technology and Integrity

Error Correction Implementation

The ECC functionality in the 819880-B21 utilizes a sophisticated algorithm that adds redundant bits to stored data, enabling the detection and correction of single-bit errors in real-time. This is achieved through a (72,64) code that stores 64 data bits with 8 additional ECC bits. When a single-bit error occurs, the memory controller automatically identifies the faulty bit and corrects it without interrupting system operation or requiring software intervention. This capability is crucial for maintaining data integrity in business-critical applications and scientific computing.

Multi-Bit Error Detection

Beyond single-bit correction, the ECC implementation provides robust detection of multi-bit errors within the same memory word. When such errors are detected, the system can trigger alerts through management interfaces and, in severe cases, initiate protective measures to prevent data corruption. This comprehensive error protection scheme significantly enhances system reliability compared to non-ECC memory, particularly in environments with high memory utilization or extended operational periods.

Predictive Analysis

HPE's advanced memory technology includes predictive failure algorithms that analyze error patterns over time. By monitoring the frequency and distribution of corrected errors, the system can identify modules that may be approaching end-of-life or experiencing environmental stress. This capability allows for planned maintenance during off-hours rather than emergency downtime, significantly improving system availability for critical operations.

Theoretical Performance Metrics

With a data rate of 2133 MT/s and a 64-bit data path, the 819880-B21 delivers a theoretical peak bandwidth of 17.0 GB/s per module. In dual-channel configurations, this aggregates to 34.0 GB/s of total memory bandwidth available to the processor. The CAS latency of 15 cycles at 2133MHz translates to an absolute latency of approximately 14.06 nanoseconds for initial access, with subsequent accesses benefiting from burst operation and bank interleaving capabilities inherent in the DDR4 architecture.

Comparative Performance Positioning

Within the DDR4 memory hierarchy, the 2133MHz speed grade represents the baseline JEDEC specification for DDR4, providing a solid foundation for entry-level and mid-range server applications. While higher-speed DDR4 modules are available, the 819880-B21 offers an optimal balance of performance, compatibility, and cost-effectiveness for many business applications. The unbuffered design provides slightly lower latency than registered alternatives, benefiting latency-sensitive workloads.

Database and Transaction Processing

In database applications such as Microsoft SQL Server and MySQL, the 819880-B21 demonstrates consistent performance for OLTP (Online Transaction Processing) workloads. The ECC protection ensures data integrity for critical transaction records, while the 2133MHz operating frequency provides sufficient bandwidth for typical database operations. Performance testing shows particularly strong results in environments with moderate user concurrency and transaction volumes.

Virtualization and Consolidation Workloads

For virtualization platforms including VMware vSphere and Microsoft Hyper-V, this memory module supports efficient consolidation of multiple virtual machines. The 8GB capacity per module allows for flexible memory allocation to virtual machines, while ECC protection maintains integrity across diverse workloads. In testing, systems configured with these modules demonstrate stable performance during memory-intensive operations such as virtual machine migration and snapshot operations.

HPE Ecosystem Integration

ILO Management Capabilities

When installed in compatible HPE ProLiant systems, the 819880-B21 integrates fully with HPE's iLO (Integrated Lights-Out) management technology. This enables remote monitoring of memory health, temperature, and performance metrics regardless of the host operating system state. Administrators can configure alerts for corrected error thresholds, thermal events, and configuration changes, facilitating proactive management of distributed IT infrastructure.

HPE OneView Compatibility

The memory module is recognized and managed within HPE OneView infrastructure management platform, allowing for centralized inventory, monitoring, and reporting across the enterprise. This integration provides visibility into memory utilization patterns, health trends, and compliance with established configuration standards. The module's unique identification information enables precise tracking within asset management systems.

CAD/CAM and Workstations

For engineering and design workstations, the 819880-B21 offers the ECC protection required for precision modeling and simulation while providing the low-latency characteristics beneficial for interactive design applications. The memory's reliability ensures that complex calculations and renderings maintain accuracy throughout extended design sessions.