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Green 288-pin DDR4 RDIMM module with black chips, no heat spreader

NEMIX RAM

NEMIX RAM 16GB DDR4 2933MHz CL21 1.2V 2Rx8 ECC RDIMM Dell PowerEdge C4140 memory upgrade

SKU CH-3QN7-QQ61P

16 GB DDR4 ECC registered DIMM at 2933 MHz with CL21 latency for Dell PowerEdge C4140 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 CL21 boosts server throughput
  • ECC registered design protects data integrity under load
  • 2V operation reduces power draw in dense racks
  • 2Rx8 288-pin RDIMM fits Dell PowerEdge C4140 slots
  • Major OEM Samsung Micron Hynix chips ensure reliability

Dell PowerEdge C4140 server memory upgrade

This 16 GB DDR4 2933 MHz ECC RDIMM module is validated for the Dell PowerEdge C4140 rack server. It provides registered, error-correcting memory for workloads that demand data integrity and sustained throughput. The single-rank 2Rx8 organisation operates at 1.2 V with a CL21 latency. IT teams can add capacity to existing configurations without mixing untested modules.

Replacing slower or non-ECC DIMMs in the C4140

Upgrading from lower-speed DDR4 or unbuffered memory eliminates bandwidth bottlenecks and adds hardware error correction for mission-critical applications. The jump is worth it when virtualisation density, database caching or scientific compute jobs exceed the current memory ceiling and the platform still has free 288-pin slots. Registered signalling ensures stability at full population across all channels.

Suits administrators expanding a Dell PowerEdge

This module fits teams that need guaranteed Dell-qualified compatibility and ECC protection for production servers. Builders assembling white-box platforms, workstations or consumer desktops should look elsewhere because registered DIMMs require a server chipset and will not function in standard desktop motherboards.

How it compares

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

Price $108.99
Cheaper than about 67% 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 $6.81 per GB
Cheaper than about 58% 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 numberMR23400-628K1
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

Will this 288-pin DDR4 RDIMM fit the memory slots in a Dell PowerEdge C4140?

The module uses the standard 288-pin DDR4 RDIMM form factor that matches the C4140 DIMM slots.

What is the correct seating procedure for this registered ECC module, and what step do installers often miss?

Align the notch with the slot key, press down firmly until both side clips click, then verify the module height is flush with neighbouring DIMMs.

When should this 16 GB 2Rx8 CL21 module be replaced in a production server?

Replace it if memory diagnostics report correctable errors that exceed the platform threshold or if the server logs uncorrectable ECC events.

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