HPE P58456-B21

Overview

The HPE P58456-B21 is a standard heat sink designed specifically for ProLiant DL3X5 Gen11 1U servers. It plays a critical role in managing CPU temperatures by efficiently transferring heat away from high-core processors, ensuring stable operation during intense workloads such as virtualization, transaction processing, and real-time analytics. This heat sink supports the server’s ability to maintain peak performance and consistent uptime by preventing thermal throttling and protecting internal components from heat-related stress.

Key features

• Official HPE component engineered to match the thermal requirements of ProLiant DL3X5 Gen11 1U servers
• Delivers precise airflow and surface contact to keep CPU temperatures stable under both sustained and burst workloads
• Easy installation with HPE-validated spring-loaded screws and mounting hardware, enabling quick service without additional tools or adapters
• Constructed from high-quality materials that enhance heat transfer efficiency and ensure long-term durability
• Designed to integrate seamlessly with existing chassis airflow, preserving the original cooling design and system reliability
• Supports data center and edge deployments by maintaining consistent performance and extending component lifespan

Key specs

• Compatibility: HPE ProLiant DL3X5 Gen11 1U servers
• Form factor: Standard 1U heat sink
• Mounting: Spring-loaded screws with HPE-validated hardware
• Material: High-quality thermal conductive materials for efficient heat dissipation
• Thermal management: Optimized for high-core processor cooling in dense server environments

Installation and setup

The heat sink installs quickly following the familiar HPE service-tool pattern. Administrators can seat the unit securely using the spring-loaded screws without needing aftermarket brackets or shims. This ensures exact fitment and proper clearance within the 1U chassis, minimizing downtime during maintenance or upgrades.

Ideal uses and environments

This heat sink is well suited for data centers and edge sites running ProLiant DL3X5 Gen11 1U servers that handle demanding workloads. It supports environments where maintaining stable CPU temperatures is essential for performance consistency, such as virtualization clusters, database servers, and analytics platforms. System integrators and IT managers who require official HPE support and predictable cooling will find this component a reliable choice for sustaining server health and uptime.

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