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NEMIX RAM

NEMIX RAM 16GB DDR4 2933MHz CL21 ECC RDIMM Dell PowerEdge MX840C memory upgrade

SKU CH-RBE0-DWJB2

16 GB DDR4 2933 MHz ECC registered DIMM with CL21 latency for Dell PowerEdge MX840C servers

  • Total capacity16 GB
  • Rated speedDDR4 2933 (PC4 23400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL21
  • Buffer typeRegistered
  • Rated voltage1.2 V
  • 16GB DDR4 2933MHz boosts server throughput
  • ECC registered design protects data integrity
  • CL21 CAS latency optimises response time
  • 2V operation reduces power draw
  • 288-pin RDIMM fits Dell PowerEdge MX840C

Dell PowerEdge MX840C memory upgrade

This NEMIX RAM module adds 16 GB of DDR4 2933 MHz registered ECC memory to a compatible Dell PowerEdge MX840C server. It operates at 1.2 V with CL21 latency and uses a 2Rx8 organisation on a 288-pin RDIMM form factor. The module is built with major OEM chips and is supplied new.

For servers needing registered ECC DDR4 at 2933 MHz

This module suits administrators expanding or repairing a Dell PowerEdge MX840C that requires registered ECC RDIMMs at this speed and voltage. It is not for systems that accept only unbuffered UDIMMs, for platforms limited to lower DDR4 speeds, or for builds that need a heat spreader on every module. Buyers who want a different capacity or a non-ECC variant should look at other listings.

Fits a 288-pin DDR4 RDIMM slot in the MX840C

The stick installs directly into an available registered DIMM slot without extra cabling or adapters. Its 1.2 V rating matches the platform's standard DDR4 voltage, leaving headroom for additional modules within the system's memory population rules. The single 16 GB rank configuration frees remaining slots for further capacity increases.

How it compares

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

Price $125.99
Cheaper than about 65% of the 21,161 comparable items (median $397.99).
Total capacity 16 GB
Lower than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $7.87 per GB
Typical for this category: the median of 20,941 items is $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 numberMR23400-628K1
Total capacity16 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 rank2Rx8
Power
Rated voltage1.2 V
Compatibility
Compatible systemsDell
In the box
Included items16 GB (1 × 16 GB) DDR4 2933 MHz PC4-23400 2Rx8 1.2 V CL21 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

What motherboard slot does this 288-pin DDR4 RDIMM require?

This module fits a standard DDR4 RDIMM slot; the Dell PowerEdge MX840C uses 288-pin registered DIMM sockets.

Will this 2933MHz CL21 registered ECC module run at its rated speed when paired with slower Dell memory in the same server?

The system will operate all modules at the speed of the slowest installed kit; this stick is rated 2933MHz CL21 at 1.20V.

How can I confirm the 16GB 2Rx8 module is recognised and running with ECC after installation?

Check the BIOS memory configuration screen — it should show 16GB per module, 2Rx8 organisation, ECC enabled, and a 2933MHz data rate.

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