OWC 64GB DDR5 5600 CL46 2Rx4 288-pin 1.1V ECC Registered RDIMM for Lenovo ThinkSystem SD530 V3 memory upgrade

Capacity and fit

This single module provides 64GB of DDR5 memory for the Lenovo ThinkSystem SD530 V3. It is built as a 288-pin ECC Registered RDIMM with a 2Rx4 organisation and operates at 1.1V. The part is intended for server and workstation platforms that require registered ECC memory. It will not work in standard desktop computers or in systems that use unbuffered or load-reduced DIMMs.

Interface limits

The module runs at DDR5 5600 speed with a CAS latency of 46 and conforms to the PC5-44800 standard. Registered ECC memory adds a clock cycle for command buffering, so it cannot be mixed with unbuffered or load-reduced modules in the same system. JEDEC compliance ensures electrical and timing compatibility with the qualified platform. Maximum capacity and population rules are defined by the server documentation.

Pre-installation checks

Verify that the Lenovo ThinkSystem SD530 V3 supports 64GB Registered RDIMMs and the 2Rx4 rank configuration in the desired slot layout. Confirm the firmware revision meets the vendor's minimum for DDR5 5600 operation. Ensure all installed DIMMs share the same registered ECC type to avoid mixing incompatible module classes.