OWC 256GB (4x64GB) DDR4 2933 CL21 ECC Registered RDIMM memory upgrade kit Synergy 480 660

Server-grade ECC kit for HP Synergy

This 256GB kit supplies four 64GB DDR4 2933 CL21 registered DIMMs built for HP Synergy 480 Gen10 and 660 Gen10 compute modules. ECC and register circuitry correct single-bit errors and reduce electrical load on the memory bus, a requirement for stable operation in multi-socket server chassis. The modules run at 1.2V and conform to JEDEC PC4-23400 timing.

Suited for compatible blade refreshes

The kit targets administrators upgrading or populating HP Synergy 480 Gen10 and 660 Gen10 bays with maximum-capacity registered ECC memory. It will not work in standard desktop boards, consumer laptops or any system that accepts only unbuffered or load-reduced DIMMs. Buyers needing non-ECC memory, lower capacities or different form factors must select a different product line.

Steady throughput under sustained load

Registered signalling and ECC checking maintain data integrity during continuous multi-threaded workloads such as virtualisation, database serving or high-performance computing. Backward compatibility with 2133, 2400 and 2666MHz buses allows the modules to clock down automatically when installed in slower slots without manual configuration. The absence of heat spreaders relies on chassis airflow for thermal management during prolonged operation.