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Green circuit board DDR5 RDIMM module with black memory chips and gold edge connector

NEMIX RAM

NEMIX RAM 64GB DDR5 5600 CL46 2Rx4 1.1V ECC RDIMM memory upgrade for Lenovo ThinkEdge SE455 V3

SKU CH-M698-YN95C

64 GB DDR5 5600 CL46 ECC registered DIMM built for the Lenovo ThinkEdge SE455 V3 server

  • Total capacity64 GB
  • Rated speedDDR5 5600 (PC5 44800)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL46
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • ECC protection prevents data errors in critical workloads
  • 5600 MHz DDR5 speed delivers high throughput for AI tasks
  • 64 GB capacity in a single module maximises slot efficiency
  • 1 V operation reduces power draw in dense servers
  • 2Rx4 registered design ensures signal integrity on ThinkEdge SE455 V3

Lenovo ThinkEdge SE455 V3 64GB DDR5 RDIMM

This 64GB DDR5 5600 CL46 registered ECC module is built for the Lenovo ThinkEdge SE455 V3 AI server. It targets administrators who need to expand memory capacity on that specific platform. The 2Rx4 organisation and 1.1V operation match the server's qualified memory list. Buyers with other DDR5 systems or non-ECC boards cannot use this module.

ECC registration and 2Rx4 rank

The registered buffer and on-die ECC protect data integrity in continuous AI and inference workloads. The 2Rx4 rank layout allows higher density per channel without exceeding the platform's load limits. No heat spreader is included, so airflow in the chassis must handle thermal management. The package contains a single 64GB stick; no extra cables, software or brackets are supplied.

Tool-less DIMM slot insertion

Installation follows the standard 288-pin DDR5 RDIMM procedure: open the retaining clips, align the notch, press until the clips click. The keyed notch prevents backwards insertion. Common issues arise when mixing ranks or speeds across channels, so populate identical slots per the server manual. Firmware must recognise the 5600 MT/s JEDEC profile; older BIOS revisions may default to a lower speed.

How it compares

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

Price $1,899.99
Pricier than about 67% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $29.69 per GB
Pricier than about 84% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineNEMIX RAM Original Series Server Memory
Model nameDDR5 ECC RDIMM Registered Server Memory
Part numberMR44800-924K1
Total capacity64 GB
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 5600 (PC5 44800)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL46
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank2Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsLenovo
In the box
Included items64 GB (1 × 64 GB) DDR5 5600 MHz PC5-44800 2Rx4 1.1 V 288-PIN ECC RDIMM

Questions about this item

Will the 2Rx4 288-pin DDR5 module need replacement if a rank fails?

The 2Rx4 organisation means two ranks share one module; if a rank fails the entire 64GB stick must be swapped.

What limits sustained throughput at 5600 MT/s CL46?

The CAS latency of 46 cycles at 5600 MT/s sets the timing ceiling for continuous read and write streams.

How much heat and power does the 1.1 V registered ECC DIMM produce under all-day load?

At 1.10 V the module draws minimal power and runs without a heat spreader, so thermal output stays low during extended operation.

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