HPE DL380 GEN11 STD Heat Sink KIT - P49145-B21

HPE P49145-B21 Standard Heat Sink Kit for ProLiant DL380 Gen11

Overview

The HPE P49145-B21 is the standard-configuration processor heat sink kit for the HPE ProLiant DL380 Gen11 server. It ships as a kit rather than a loose component, making it the correct part to order when replacing a failed or missing heat sink during a processor upgrade or field service event — so you aren't sourcing thermal hardware separately from a repair kit. If you are adding a second processor to a single-CPU DL380 Gen11 configuration, this kit provides the necessary thermal solution for the second socket. Standard designation matters here: HPE differentiates between standard and high-performance heat sink variants by CPU TDP class — confirm your processor's TDP against HPE's configuration guide before ordering to avoid a mismatch that forces a second service call.

Compatibility

Designed for the HPE ProLiant DL380 Gen11 2U rack server platform. The DL380 Gen11 uses a different chassis and motherboard form factor than Gen10/Gen10 Plus predecessors, so heat sinks are not interchangeable across generations — verify the target server's generation before purchasing. Within the server components category, this kit is specific to the DL380 Gen11; it does not apply to DL360 Gen11, DL380 Gen10, or other ProLiant families. For CPU configurations with elevated TDP requirements, HPE offers a high-performance heat sink variant — consult HPE's QuickSpecs for the DL380 Gen11 to confirm which TDP threshold separates standard from high-performance fitment.

Installation Notes

The kit measures 7.00 x 6.50 x 6.75 in and weighs 1.35 lb — standard 2U heat sink footprint that fits within the DL380 Gen11 chassis airflow path without modification. Follow HPE's documented thermal interface material (TIM) application procedure when seating the heat sink; reusing degraded TIM from a prior processor installation will compromise thermal performance and may trigger CPU throttling under sustained load. No additional tools beyond standard HPE server tooling are required. Factory-new component sourced direct — no grey-market, no parallel imports.