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Green circuit board with black memory chips, gold edge connector, no heat spreader

NEMIX RAM

NEMIX RAM 64GB 1x64GB DDR4 2933 PC4-23400 2Rx4 CL21 1.2V ECC RDIMM 288-Pin Dell PowerEdge T640

SKU CH-PWK6-CHHY3

64 GB DDR4 2933 ECC registered RDIMM validated for Dell PowerEdge T640 servers

  • Total capacity64 GB
  • Rated speedDDR4 2933 (PC4 23400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL21
  • Buffer typeRegistered
  • Rated voltage1.2 V
  • 64 GB single-module capacity simplifies upgrades to maximum supported memory
  • DDR4 2933 speed with CL21 latency matches Dell PowerEdge T640 specifications
  • ECC registered RDIMM design detects and corrects data errors for server reliability
  • 2 V operation reduces power draw and heat in dense configurations
  • 288-pin 2Rx4 organisation ensures correct electrical loading for Dell T640 memory slots

Dell PowerEdge T640 memory upgrade

This 64 GB DDR4 2933 registered DIMM is built for the Dell PowerEdge T640 tower server. It delivers 2Rx4 ECC protection at 1.2 V with a CL21 latency profile. The single-module design lets administrators add capacity one slot at a time.

ECC RDIMM with major OEM chips

The module uses Samsung, Micron or Hynix components and carries full ECC registered operation. Error correction guards data integrity in mission-critical workloads. Registered signalling reduces electrical load on the memory bus for stable operation at 2933 MT/s. No heat spreader is fitted.

IT teams expanding T640 capacity

Suits administrators who need a validated 64 GB stick for the T640 platform. Buyers requiring unbuffered UDIMMs or non-ECC memory for desktop boards should look elsewhere. Systems that demand speeds above 2933 MT/s or lower CAS latencies will not match this specification.

How it compares

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

Price $432.99
Typical for this category: the median of 21,161 items is $397.99.
Total capacity 64 GB
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $6.77 per GB
Cheaper than about 59% 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 numberMR23400-924K1
Total capacity64 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 rank2Rx4
Power
Rated voltage1.2 V
Compatibility
Compatible systemsDell
In the box
Included items64 GB (1 × 64 GB) DDR4 2933 MHz PC4-23400 2Rx4 1.2 V CL21 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

Will the 1.20V 2Rx4 DDR4 RDIMM need any firmware updates or component swaps over its service life?

The module is a standard DDR4 2933 2Rx4 registered DIMM with no heat spreader; it has no field-updatable firmware and no user-serviceable parts, so no maintenance or replacements are expected.

What limit appears first when the 64GB PC4-23400 stick runs at full speed continuously in a Dell PowerEdge T640?

Sustained operation is bounded by the JEDEC 1.20V voltage and CL21 latency; the memory controller will throttle before the DRAM exceeds its rated thermal envelope.

How much noise, heat and power does the single 288-pin 64GB ECC RDIMM add when the server runs all day?

The stick draws 1.2V at DDR4 2933 with no onboard fan or heat spreader, adding negligible acoustic noise, modest heat handled by system airflow, and power proportional to its 64GB capacity.

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