NEMIX RAM 32GB DDR4 2933 CL21 2Rx4 ECC RDIMM Dell R7920 XL memory upgrade

Dell R7920 XL 32GB DDR4 module

This NEMIX RAM module is a 32GB DDR4 2933MHz registered DIMM built for the Dell Precision Workstation R7920 XL. It carries ECC and a 2Rx4 organisation to maintain data integrity in server and workstation workloads. The single 288-pin stick runs at 1.2V with a CAS latency of CL21. It targets administrators expanding memory in that specific Dell platform.

Capacity and headroom

One module adds 32GB of registered ECC capacity, letting the R7920 XL handle larger datasets and more virtual machines before paging. The dual-rank 2Rx4 layout helps fill memory channels efficiently, but total capacity still depends on the number of slots the workstation provides. Workloads that exceed the installed total will swap to storage, so plan the final configuration around the application footprint.

DDR4 2933 registered limits

The DDR4 2933 interface delivers PC4-23400 bandwidth within the constraints of registered signalling and ECC overhead. Mixing modules with different speeds or ranks can force the channel down to a lower common rate. The registered buffer adds a cycle of latency versus unbuffered DIMMs, which is normal for this class of memory. Population rules for the R7920 XL dictate maximum supported speed at each DIMM-per-channel count.