HPE P07818-B21 DDR4 DIMM Blank Kit
Overview
The HPE P07818-B21 is a DDR4 DIMM blank kit designed to fill unpopulated memory slots in HPE ProLiant servers. Empty DIMM slots in a populated server chassis can disrupt airflow management — blanks maintain the intended thermal path across the memory riser, helping prevent hot spots in adjacent populated slots during continuous operation. If you're partially populating a server and plan to add memory later, installing P07818-B21 blanks now keeps the slot protected and the airflow balanced.
Compatibility
Designed for HPE ProLiant servers that use DDR4 memory and require slot coverage for thermal and mechanical compliance. Consult the HPE QuickSpecs or memory configuration guide for your specific HPE server model to confirm blank requirements — some ProLiant generations mandate blanks in all unpopulated slots as part of the supported memory configuration. Applicable to server memory expansion scenarios where partial DIMM population is in use.
Installation Notes
Blanks seat directly into the DDR4 DIMM slot — no tools required. Ensure the retaining clips fully engage on both ends of the blank to confirm proper seating. Do not mix blank types across a single memory riser if the platform specifies a particular blank part number; using incorrect blanks can prevent the access panel from closing or interfere with adjacent DIMM retention arms.
