NEMIX RAM 8GB DDR4 2666 PC4-21300 CL19 1Rx8 1.2V 288-pin UDIMM for Dell Precision 3930 Rack

Dell Precision 3930 Rack memory upgrade

This 8GB DDR4 module is built specifically for the Dell Precision 3930 Rack workstation. It provides a straightforward capacity increase for users who need more memory for multi-tasking or larger datasets. The unbuffered non-ECC design matches the workstation's standard memory architecture.

DDR4 2666 speed and timing limits

The module operates at 2666 MT/s with a CAS latency of 19 and requires 1.20V. These parameters are fixed by the JEDEC DDR4 standard for this speed grade; the workstation will not run the memory faster or with tighter timings without explicit BIOS support that is not guaranteed. Mixing with faster modules will force the system to run at the slowest common speed.

Single-rank 1Rx8 organisation

The 1Rx8 configuration means the module uses a single rank of eight-wide chips, presenting one logical rank per channel. This is the critical specification for compatibility; systems that require dual-rank modules or a different chip organisation may not recognise the full capacity or may fail to boot. Buyers who need higher density per slot should verify their platform supports 8GB single-rank UDIMMs before ordering.