NEMIX RAM 16GB DDR4 3200 ECC RDIMM CL22 2Rx8 1.2V 288-pin Lenovo ThinkSystem 4X77A08632 memory upgrade

16 GB DDR4 3200 ECC RDIMM for Lenovo ThinkSystem

This 16 GB DDR4 3200 ECC RDIMM module is built for Lenovo ThinkSystem servers using Intel processors. It carries part number 4X77A08632 and runs at 1.2 V with a CAS latency of CL22. The 2Rx8 registered design adds error correction and signal buffering for stable operation in multi-DIMM configurations. It targets administrators who need validated, single-module capacity increases for supported ThinkSystem platforms.

Sustained load behaviour with registered ECC

Registered signalling reduces electrical load on the memory controller, allowing the module to maintain rated 3200 MT/s throughput under continuous server workloads. ECC detects and corrects single-bit errors on the fly, preventing data corruption during long compute runs. The 2Rx8 organisation spreads access across two ranks, helping the controller keep pipelines full without exceeding timing limits. No heat spreader is fitted, so chassis airflow must handle thermal dissipation.

Upgrade path from smaller or non-ECC DIMMs

This module replaces lower-capacity RDIMMs or non-ECC UDIMMs in slots qualified for 4X77A08632, adding 16 GB per slot while retaining registered ECC integrity. The jump is worthwhile when workloads exceed current memory headroom or when error correction becomes a requirement for data integrity. Compatibility is limited to Lenovo ThinkSystem models validated for this part number; other platforms are not supported.