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HPE P47902-B21 system fan kit for second CPU server accessory

HPE

HPE P47902-B21 system fan kit for 2nd CPU server accessory

SKU CH-C9N9-AZDCX MPN P47902-B21

System fan kit provides cooling for a second CPU installation in compatible servers

  • TypeComputer Accessories
  • Cools second CPU configurations with dedicated airflow
  • Genuine HPE part ensures server compatibility
  • New condition guarantees full operational life
  • Installs as standard server accessory component
  • Supports dual-processor thermal management requirements

Second-CPU Cooling Kit

The HPE P47902-B21 system fan kit is designed for servers adding a second processor. It supplies the extra airflow that the additional CPU requires for stable operation. This accessory targets administrators expanding compute density within a supported HPE chassis. It is not for single-socket configurations or for chassis lacking the second-CPU socket and its associated fan headers.

Capacity and Headroom

The kit delivers the cooling headroom specified for the second CPU socket under typical workloads. It handles the thermal load generated by the additional processor and its local memory banks. It runs out when the total chassis heat exceeds the platform’s rated maximum or when non-standard high-TDP processors are installed beyond the validated list. Buyers needing redundant fan arrays or liquid-cooling integration should look elsewhere.

Compatibility Decider

The single specification that decides fitment is the server model’s support for a second CPU and the matching fan-header layout. Only HPE platforms with validated second-socket configurations accept this kit. Installing it in an unsupported chassis will not provide cooling and may block other components. Verify the exact server part number against the HPE compatibility matrix before purchase.

Highlights

  • Cools second CPU configurations with dedicated airflow
  • Genuine HPE part ensures server compatibility
  • New condition guarantees full operational life
  • Installs as standard server accessory component
  • Supports dual-processor thermal management requirements

Specifications

BrandHP
TypeComputer Accessories
Shipping weight0.45 kg
Package size254 × 221 × 64 mm

Questions about this item

Will the P47902-B21 fan kit fit alongside the existing cooling assembly when I add a second CPU?

The kit is designed for the second CPU slot and installs next to the original fan module without changing the chassis airflow path.

How can I confirm the new fans are spinning at the correct speed after installation?

Check the iLO or system BIOS fan-speed readings; they should show the new rotors reporting RPM within the normal operating range for a dual-CPU configuration.

Does the box include mounting screws or a control cable, or must I order them separately?

The package contains the fan rotor assembly and the dedicated power cable; all mounting hardware is reused from the chassis, so no extra parts are required.

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