HPE ML350 GEN11 SEC CPU FAN KIT - P47902-B21

HPE P47902-B21 Secondary CPU Fan Kit for ML350 Gen11

Overview

The HPE P47902-B21 is the secondary CPU fan kit designed for the HPE ProLiant ML350 Gen11 tower server. When you install a second processor in the ML350 Gen11, the server requires this dedicated fan assembly to maintain proper airflow and thermal management for the added CPU — without it, the system will either refuse to POST or throttle heavily under load. At 0.95 lb and 9.90 x 8.70 x 2.70 in, this kit installs directly into the designated fan bay and integrates with the ML350 Gen11's onboard thermal monitoring to deliver active cooling proportional to CPU workload.

Compatibility

This fan kit is specified for the HPE ProLiant ML350 Gen11 tower server. It is intended for dual-processor configurations — if you are running a single-CPU build, the base cooling included with the chassis is sufficient and P47902-B21 is not required. Verify your server's specific fan bay and airflow requirements against HPE's ML350 Gen11 QuickSpecs before ordering; Gen10 and Gen10 Plus ML350 variants use different fan assemblies and are not compatible with this kit.

Installation Notes

Install with the ML350 Gen11 powered down and the chassis grounded. The fan kit seats into the secondary CPU fan slot — consult the ML350 Gen11 maintenance and service guide for the correct bay position relative to CPU2. No special tooling is required beyond standard server hand tools. After installation, confirm the management controller (iLO) reports the fan as present and functional before returning the server to service. Country of origin: CN.