OWC 4R8D52R464GB 64GB DDR5 4800 CL40 ECC RDIMM 1.1V 2Rx4 memory upgrade

Server-grade DDR5 RDIMM for Gigabyte R183-Z9x

This OWC module is a 64 GB DDR5 4800 CL40 ECC registered DIMM built for workstation and server platforms. It targets administrators upgrading or repairing Gigabyte R183-Z92 through R183-Z96 systems. The single 288-pin stick operates at 1.1 V and uses a 2Rx4 organisation. It is not compatible with standard desktop motherboards or with unbuffered or load-reduced memory types.

Registered ECC with 2Rx4 organisation

The registered buffer and on-die ECC are the defining specifications that decide fitment. These features allow the memory controller to address the 64 GB capacity reliably in multi-DIMM server configurations. Mixing this module with unbuffered or load-reduced DIMMs will prevent the system from posting. Buyers must confirm their platform requires registered ECC DDR5 before purchasing.

Steady throughput under sustained server loads

JEDEC-standard DDR5 4800 timing at CL40 delivers consistent bandwidth during long-running workloads such as virtualisation, database serving or NAS duties. The 1.1 V operating voltage helps maintain thermal stability across fully populated channels. Without a heat spreader, adequate chassis airflow is required to sustain rated performance over extended periods.