OWC 64GB (4x16GB) DDR3L 1600 ECC RDIMM Memory Upgrade Kit

Target Server Platforms

This 64GB kit contains four 16GB DDR3L 1600 registered ECC modules built for Cisco UCS C24 M3, C240 M3 and C420 M3 servers. It is designed for administrators who need to maximise memory capacity on these specific platforms. The kit will not work in standard desktop computers or in systems that require unbuffered or load-reduced DIMMs. Mixing with other memory types is not supported.

Installation Notes

Each module uses the 240-pin DDR3L form factor and installs like any registered DIMM; align the key notch and press until the retention clips lock. Because the modules are registered ECC, the server BIOS must support registered memory and the population rules for the Cisco UCS models listed. Using unbuffered or load-reduced DIMMs in the same system will prevent boot.

Sustained Operation

The modules run at 1.35V with CL11 latency and a 2Rx4 organisation, delivering steady throughput under continuous server workloads. ECC correction handles single-bit errors without interruption, while the registered buffer reduces electrical load on the memory controller during extended use. No heat spreader is fitted, so adequate chassis airflow is required to maintain rated performance over long periods.