NEMIX RAM 16GB DDR5 4800 CL40 1.1V 1Rx8 ECC RDIMM Dell PowerEdge XE9640 memory upgrade

Dell PowerEdge XE9640 DDR5 module

This 16 GB DDR5 4800 MHz registered ECC RDIMM is built for the Dell PowerEdge XE9640 rack server. It delivers error-correcting, buffered memory for enterprise workloads that require data integrity and stable operation. The module runs at 1.1 V with CL40 latency and a single-rank 1Rx8 organisation. It targets IT teams upgrading or maintaining this specific server platform.

288-pin RDIMM installation notes

The 288-pin form factor fits standard DDR5 RDIMM slots on the XE9640 motherboard. Registered modules must populate slots in the order defined by the server’s memory population rules; mixing registered and unbuffered DIMMs will prevent boot. Handle the module by the edges to avoid contaminating the gold contacts. No heat spreader is present, so airflow across the PCB is required for thermal management.

Pre-order compatibility checks

Confirm the system is a Dell PowerEdge XE9640 and that the BIOS revision supports DDR5 4800 registered ECC memory. Verify the number of available RDIMM slots and the maximum capacity per channel allowed by the processor installed. Ensure the operating system and applications can utilise ECC functionality. Cross-reference the part number MR38400-618K1 with Dell’s qualified vendor list for this server.