NEMIX RAM 64GB DDR5 4800 CL40 2Rx4 ECC RDIMM Lenovo ThinkSystem 4X77A77033 memory upgrade

Server memory for Lenovo ThinkSystem

This NEMIX RAM module provides 64GB of DDR5 4800 ECC registered memory built for Intel-based Lenovo ThinkSystem servers. It operates at 1.1V with CL40 latency and a 2Rx4 rank configuration. The 288-pin RDIMM form factor fits compatible server motherboards directly. IT professionals specify this part for reliable capacity expansion in mission-critical environments.

Installation notes and common pitfalls

The module installs into a standard 288-pin DDR5 RDIMM slot on supported Lenovo ThinkSystem boards. Registered ECC memory requires a server platform that supports both features; consumer or workstation boards without RDIMM support will not POST. Always verify the system qualified vendor list and populate slots per the server manual to maintain correct channel population rules. No heat spreader is present, so airflow across the DIMMs must be adequate.

Suited for ThinkSystem capacity upgrades

This single 64GB stick suits administrators adding memory to validated Lenovo ThinkSystem servers running Intel processors where 4X77A77033 compatibility is confirmed. It is not appropriate for systems that only accept unbuffered UDIMMs, platforms limited to lower maximum module densities, or builds requiring a heat spreader for thermal management. Buyers needing different speeds, ranks, or form factors should consult their hardware documentation.