OWC 16GB DDR4 3200 ECC Registered RDIMM 2Rx8 1.2V Dell AA783421 AA799064 AA810826 AB214251 server RAM

16 GB DDR4 ECC RDIMM for Dell servers

This 16 GB DDR4 3200 module is an ECC registered RDIMM built to match Dell part numbers AA783421, AA799064, AA810826 and AB214251. It targets administrators upgrading or repairing compatible Dell PowerEdge servers and precision workstations that require registered memory with error correction. The 288-pin form factor fits standard DDR4 server slots.

Sustained operation at CL22 and 1.2 V

Rated at PC4-25600 with CL22 latency, the module runs at the JEDEC-standard 1.2 V without overclocking headroom. Registered buffering reduces electrical load on the memory controller, helping signal integrity when all channels are populated. ECC circuitry detects and corrects single-bit errors continuously, which matters during long compute jobs or virtualization workloads. The 2Rx8 organisation distributes density across two ranks per module.

Install in matched sets; avoid unbuffered DIMMs

Installation follows normal DIMM seating procedure: align the notch, press until the ejectors click, and verify population order in the server service guide. Mixing these registered DIMMs with unbuffered memory will prevent boot or cause instability, so populate channels with identical modules. No heat spreader is fitted, so airflow across the PCB must be adequate in dense chassis configurations. The part is validated against the listed Dell part numbers for warranty-safe upgrades.