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Four green DDR4 RDIMM modules in anti-static tray

NEMIX RAM

NEMIX RAM 256GB (4x64GB) DDR4 2933 CL21 4Rx4 ECC RDIMM Dell Precision 5820 memory upgrade

SKU CH-890M-ZXT0J

A 256GB kit of four 64GB DDR4 2933 ECC registered RDIMMs with CL21 latency and 1.2V operation for the Dell Precision 5820 workstation

  • Total capacity256 GB (4 × 64 GB)
  • Rated speedDDR4 2933 (PC4 23400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL21
  • Buffer typeRegistered
  • Rated voltage1.2 V
  • 256 GB total capacity from four 64 GB modules for large workloads
  • DDR4 2933 speed rated at PC4-23400 for high throughput
  • ECC registered RDIMM design detects and corrects data errors
  • CL21 latency at 1.2 V for stable operation
  • 288-pin 4Rx4 layout built for Dell Precision 5820 compatibility

Dell Precision 5820 memory upgrade

This 256GB kit delivers four 64GB DDR4 RDIMM modules built for the Dell Precision 5820 tower workstation. ECC registered operation protects data integrity in professional workloads.

288-pin RDIMM form factor with registered buffering

Modules run at 1.2V and CL21 latency without heat spreaders. The registered design reduces electrical load on the memory controller for stable operation in dense configurations.

Replaces lower-capacity

The jump is worth it when workloads exceed current memory limits or require error correction for reliability. Buyers needing consumer DIMM compatibility or speeds beyond DDR4 2933 should look elsewhere.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $1,559.99
Pricier than about 65% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (4 × 64 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $6.09 per GB
Cheaper than about 64% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineDell Server/Workstation Compatible Series Memory
Model nameDell DDR4 2933 MHz RDIMM Registered Server Memory
Part numberMR23400-944K4
Total capacity256 GB (4 × 64 GB)
Product type288-Pin DDR4 RDIMM
Performance
Rated speedDDR4 2933 (PC4 23400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL21
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank4Rx4
Power
Rated voltage1.2 V
Compatibility
Compatible systemsDell
In the box
Included items256 GB (4 × 64 GB) DDR4 2933 MHz PC4-23400 4Rx4 1.2 V CL21 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

What maximum data rate does the DDR4 2933 interface deliver on this 256 GB kit?

The modules run at 2933 MT/s, matching the PC4-23400 standard for the Precision 5820.

How many 288-pin DDR4 RDIMM slots are required to install the 4 × 64 GB modules?

Four free DIMM slots are needed; each 64 GB stick occupies one 288-pin registered slot.

What is the correct order for seating the four 4Rx4 registered DIMMs in the Precision 5820?

Populate the four slots following the motherboard's channel map — typically slot 1 of each channel first — then press until the ejectors click.

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