P12403-B21 HPE 64GB 2933MHZ ECC DDR4 Memory Module for Proliant Server

HPE P12403-B21 64GB DDR4 LRDIMM Server Memory Overview

The HPE P12403-B21 is a high-performance 64GB DDR4 Load Reduced DIMM (LRDIMM) engineered specifically for HPE ProLiant servers. This professionally refurbished memory module delivers enterprise-grade reliability at a fraction of the cost of new modules, backed by a robust 1 year replacement warranty.

Technical Specifications and Key Features

Performance Characteristics

• 64GB Capacity: Ideal for memory-intensive enterprise applications
• DDR4-2933 (PC4-23400): Operates at 2933 MT/s for excellent bandwidth
• CAS Latency: CL21 timing for balanced performance
• 1.2V Operation: Energy efficient compared to DDR3 alternatives

Form Factor and Design

• 288-Pin LRDIMM: Load Reduced design for superior signal integrity
• HPE Genuine Part: Optimized for ProLiant server compatibility
• Dual Rank Configuration: 2Rx4 organization for optimal performance

Reliability Features

• ECC Support: Error Correcting Code for mission-critical data integrity
• LRDIMM Technology: Reduces electrical load on memory controllers
• Refurbished to Excellence: Rigorously tested and certified
• 1 year replacement warranty: Hassle-free replacement guarantee

Understanding LRDIMM Technology in Depth

LRDIMM vs RDIMM Architecture

Unlike Registered DIMMs (RDIMMs), LRDIMMs utilize an advanced memory buffer (MB) that:

• Completely isolates the DRAM chips from the memory controller
• Reduces electrical load by up to 50% compared to RDIMMs
• Enables higher memory capacities per channel

Benefits for Enterprise Environments

• Higher Density Configurations: Support for more DIMMs per channel
• Improved Signal Integrity: Especially in fully-populated systems
• Better Performance Scaling: Maintains speed at higher capacities

Ideal Applications and Workloads

Virtualization Platforms

VMware vSphere, Microsoft Hyper-V, and Citrix XenServer benefit from:

• Higher VM density per host
• Improved memory ballooning performance
• Better handling of memory overcommit scenarios

Database Servers

SQL Server, Oracle DB, and MySQL see significant advantages:

• Larger buffer pools for improved query performance
• Reduced disk I/O through better caching
• Support for more concurrent transactions

Cloud Infrastructure

IaaS and PaaS providers achieve:

• Higher tenant density per physical host
• More consistent performance across VMs
• Better resource utilization metrics

Refurbishment Process and Quality Assurance

12-Point Testing Protocol

1. Visual inspection for physical defects
2. Contact cleaning and oxidation removal
3. Full diagnostic testing at rated speed
4. 72-hour burn-in stress testing
5. Compatibility verification in target systems
6. Final quality assurance certification

Grading Standards

• Excellent Condition: Minimal cosmetic wear, full functionality
• Performance Matching: Meets or exceeds OEM specifications
• Component Quality: Only premium-grade ICs used

Compatibility and Configuration Guidelines

Supported HPE Server Families

• ProLiant DL380 Gen10/Gen10 Plus
• ProLiant DL360 Gen10 servers
• ProLiant ML350 Gen10 tower systems
• Apollo 4200 Gen10 compute nodes

Optimal Configuration Practices

• Populate channels symmetrically for best performance
• Consult HPE's memory population guides for specific models
• Consider NUMA architecture when planning configurations
• Verify BIOS settings after installation

Performance Analysis and Benchmarks

Bandwidth Characteristics

At 2933 MT/s, this module delivers:

• 23.4 GB/s theoretical bandwidth per module
• Improved throughput over 2666 MT/s alternatives
• Better performance-per-watt than previous generations

Latency Performance

• CL21 timing provides responsive performance
• Optimized for mixed read/write workloads
• Excellent for transaction processing systems

Comparing Refurbished vs New Modules

Cost-Benefit Analysis

• Typically 40-70% cost savings versus new
• Same performance characteristics when properly refurbished
• Warranty coverage for peace of mind

Environmental Impact

• Extends lifecycle of premium components
• Reduces e-waste from premature disposal
• Lowers carbon footprint versus manufacturing new

Installation Procedures and Best Practices

Step-by-Step Installation

1. Power down server and disconnect all cables
2. Ground yourself using anti-static wrist strap
3. Locate appropriate memory slots per HPE documentation
4. Align notch and firmly seat module until clips engage
5. Repeat for additional modules in recommended configuration
6. Power on and verify in BIOS/UEFI

Troubleshooting Tips

• If server doesn't POST, reseat modules
• Check for BIOS updates if compatibility issues arise
• Verify population rules if performance seems suboptimal

Technical Resources and Support

Available Documentation

• HPE ProLiant memory configuration guides
• Detailed product specifications sheets
• Compatibility matrices for various server models

Support Channels

• Vendor-provided technical support
• Online knowledge base articles
• Community forums for peer assistance