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Green rectangular DDR4 RDIMM module with black chips no heat spreader 288 gold pins

NEMIX RAM

NEMIX RAM 16GB DDR4 2933 CL21 2Rx8 1.2V 288-pin ECC RDIMM Dell PowerEdge T640 memory upgrade

SKU CH-V425-B41FG

16 GB DDR4 2933 ECC RDIMM module with CL21 latency and 1.2 V operation for Dell PowerEdge T640 servers

  • Total capacity16 GB
  • Rated speedDDR4 2933 (PC4 23400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL21
  • Buffer typeRegistered
  • Rated voltage1.2 V
  • ECC protection guards data integrity with DDR4 2933 registered design
  • 16 GB capacity expands server memory for heavier workloads
  • 2 V operation reduces power draw in Dell PowerEdge T640
  • 2Rx8 organisation optimises rank density on 288-pin RDIMM
  • CL21 latency delivers responsive performance at PC4-23400 speed

Dell PowerEdge T640 memory upgrade

This 16 GB DDR4 registered DIMM is built for the Dell PowerEdge T640 tower server. It delivers ECC protection and registered signalling for workloads that demand data integrity and stable uptime. The module suits administrators expanding memory capacity in compatible Dell enterprise systems.

288-pin RDIMM installation notes

The module seats in a standard 288-pin DDR4 RDIMM slot and operates at 1.2 V. Registered DIMMs must be installed in the correct population order defined by the T640 service manual; mixing registered and unbuffered modules will prevent the server from posting. Handle the board by the edges and align the key notch before applying even pressure.

Pre-order compatibility checks

Verify the server BIOS is updated to a revision that supports DDR4 2933 MT/s registered memory. Confirm the available DIMM slots match the 2Rx8 rank organisation and that the total planned capacity does not exceed the system maximum. Cross-reference the part number MR23400-628K1 with Dell's qualified vendor list for the T640.

How it compares

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

Price $117.99
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 $7.37 per GB
Cheaper than about 55% 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

How do I confirm the 16GB DDR4 2933 module is running at CL21 1.2V after installing it in my PowerEdge T640?

Enter the system BIOS or iDRAC interface after boot; the memory configuration screen will show each installed DIMM running at 2933 MT/s with CAS latency 21 and 1.2 V.

What exactly ships in the box and is anything else required for installation?

The package contains one 16 GB 288-pin ECC registered DDR4 DIMM; no additional parts or tools are needed to install it in a compatible Dell PowerEdge T640.

Should I choose the 2Rx8 16 GB version or a different capacity for my T640?

Select this 2Rx8 16 GB RDIMM when your T640 configuration calls for registered ECC modules at 2933 MT/s; match the rank and capacity to your system's memory population rules.

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