OWC 32GB DDR4 2400MHz CL17 ECC Registered RDIMM 2Rx4 memory upgrade

System-Specific Server Memory

This 32 GB DDR4 module is built for Lenovo ThinkServer platforms based on the E5-2600 v4 family, covering the RD350, RD450, RD550, RD650 and TD350 models. It operates at 2400 MHz with CL17 latency and 1.2 V power draw. The registered ECC design targets workloads that require error correction and signal buffering.

Registered ECC Architecture

The RDIMM format adds a register between the memory controller and the DRAM chips, reducing electrical load on the server bus. ECC circuitry detects and corrects single-bit errors, protecting data integrity in continuous-operation environments. This module cannot be mixed with unbuffered DIMMs and will not function in standard desktop mainboards.

2Rx4 Rank Configuration

The dual-rank 2Rx4 organisation determines how the memory controller addresses the chips and directly affects maximum population rules for each ThinkServer model. Verify the platform's supported rank-per-channel limits before installing multiple modules.