A-Tech 64GB DDR5 4800 ECC RDIMM 2Rx4 for Dell SNPJ52K5C/64G AC239379 Server Memory

Server Memory Upgrade

The A-Tech 64GB DDR5 4800 ECC RDIMM module is designed as a compatible replacement for Dell part numbers SNPJ52K5C/64G and AC239379. It targets administrators upgrading server or workstation platforms that require registered error-correcting memory. The single 64GB stick uses a 288-pin DIMM form factor and operates at the standard DDR5 voltage of 1.10V.

Thermals and Power Draw

Running at 4800 MT/s with a CAS latency of CL40, the module draws 1.10V in line with the DDR5 baseline. Registered buffering reduces electrical load on the memory controller, helping maintain stable thermals inside densely populated chassis. No active cooling is present on the module itself, so airflow across the DIMM slots handles heat dissipation during normal operation.

Sustained Load Behaviour

Under continuous workloads, the registered design and on-die ECC maintain data integrity while the major-brand chipset sustains rated frequency. The 2Rx4 organization (EC8) distributes access across ranks to support consistent throughput. Buyers needing capacities beyond a single 64GB module or systems requiring unbuffered DIMMs should verify platform specifications before ordering.