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Eight green DDR4 RDIMM modules in anti-static tray

NEMIX RAM

NEMIX RAM 512GB (8x64GB) DDR4 2933 ECC RDIMM Dell Precision 7920

SKU CH-4JZA-Z20RB

Eight 64 GB DDR4 2933 ECC registered DIMMs deliver 512 GB for Dell Precision 7920 workstations

  • Total capacity512 GB (8 × 64 GB)
  • Rated speedDDR4 2933 (PC4 23400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL21
  • Buffer typeRegistered
  • Rated voltage1.2 V
  • 512 GB total capacity for memory-intensive workloads
  • Eight 64 GB modules populate all slots
  • DDR4 2933 speed with CL21 latency
  • ECC registered design protects data integrity
  • 20 V operation at 288-pin RDIMM form factor

512GB DDR4 2933 ECC RDIMM kit

This 512GB kit contains eight 64GB registered DDR4 modules rated at 2933 MT/s with CL21 latency and 1.2V operation. It is built for the Dell Precision 7920 workstation where ECC error correction and registered signalling are required for stability under heavy workloads.

Sustained load behaviour

Each module uses a 4Rx4 organisation with major OEM chips from Samsung, Micron or Hynix that have been stress tested under load. The registered buffer and ECC function maintain data integrity during continuous compute tasks such as rendering, simulation or virtualisation without the soft errors that unbuffered memory can allow.

Installation notes

The 288-pin RDIMM form factor fits the Precision 7920 DIMM slots directly, but the workstation requires all eight slots to be populated in the correct channel order for the 512GB capacity to be recognised. Mixing these registered modules with unbuffered DIMMs or using fewer than eight modules will prevent the system from posting.

How it compares

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

Price $3,618.99
Pricier than about 75% of the 21,161 comparable items (median $397.99).
Total capacity 512 GB (8 × 64 GB)
Higher than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $7.07 per GB
Cheaper than about 57% 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 numberMR23400-944K8
Total capacity512 GB (8 × 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 items512 GB (8 × 64 GB) DDR4 2933 MHz PC4-23400 4Rx4 1.2 V CL21 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

How much heat and power draw should I expect from the 8 modules running at 1.2 V all day?

Each 64 GB module operates at 1.20 V DDR4 standard voltage; the registered design and lack of heat spreaders mean thermal output is similar to other 288-pin RDIMMs at this density.

Does my Dell Precision 7920 need a specific BIOS revision or CPU generation to recognise all 512 GB?

The kit is validated for the Precision 7920 rack and tower workstation; consult the system manual for the minimum BIOS version that supports 64 GB 4Rx4 RDIMMs.

Can I mix these 2933 MHz CL21 sticks with slower DDR4 already installed in the workstation?

The motherboard will down-clock all modules to the lowest common speed and latency, so existing slower DDR4 will set the overall bus rate.

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