HPE P48905-B21 – CPU Heat Sink Kit

HPE P48905-B21 CPU Heat Sink Kit

Overview

HPE P48905-B21 is an enterprise CPU heat sink kit designed for HPE ProLiant DL380 and DL385 Gen11 rack servers. It is used to dissipate heat generated by high-performance processors during continuous enterprise workloads. The heat sink is a passive cooling component that transfers thermal energy from the CPU to the server’s airflow system, where chassis fans remove heat from the system. It is critical for maintaining stable processor temperatures and ensuring reliable performance under sustained workloads.
It is deployed in data center environments where servers operate 24×7 under virtualization, cloud infrastructure, database systems, and enterprise applications. The heat sink is part of the server’s overall thermal design and ensures efficient heat transfer from CPU to airflow path. It does not operate independently and relies on system fans for complete cooling effectiveness.

Typical Deployment Scenarios

Enterprise virtualization servers
Cloud infrastructure systems
Database processing workloads
High-density rack environments
Mission-critical data center servers

Specifications

Compatibility / Ecosystem

HPE P48905-B21 integrates into HPE ProLiant DL380 and DL385 Gen11 server platforms as part of the CPU thermal subsystem. It works in combination with chassis fans and airflow design to maintain safe processor operating temperatures. The heat sink ensures efficient heat transfer from CPU to the airflow system, enabling stable performance under high workloads. It is widely used in enterprise environments where reliability, uptime, and thermal stability are essential for server operation.