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Two green DDR5 RDIMM modules, no heat spreader, 288 pins, 128GB kit

NEMIX RAM

NEMIX RAM 128GB (2×64GB) DDR5 5600 CL46 2Rx4 1.1V ECC RDIMM for Lenovo ThinkEdge SE455 V3

SKU CH-B76W-EV7MG

128 GB DDR5 ECC registered DIMM kit with two 64 GB modules at 5600 MT/s and CL46 for Lenovo ThinkEdge SE455 V3

  • Total capacity128 GB (2 × 64 GB)
  • Rated speedDDR5 5600 (PC5 44800)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL46
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 128GB total capacity with two 64GB modules
  • DDR5 5600 speed rated at PC5-44800
  • ECC registered design for data integrity
  • CL46 latency at 1.1V operating voltage
  • 288-pin RDIMM form factor for Lenovo ThinkEdge SE455 V3

Lenovo ThinkEdge SE455 V3 memory kit

This 128GB kit contains two 64GB DDR5 registered DIMMs built for the Lenovo ThinkEdge SE455 V3 AI server. Each module operates at 5600MHz with CL46 latency and a 1.1V supply. ECC and registered buffering protect data integrity in continuous workloads. The dual-rank 2Rx4 layout matches the platform’s validated configuration.

Thermals and power profile

Modules run at the standard 1.10V DDR5 voltage without a heat spreader, relying on server chassis airflow for cooling. Registered buffering reduces electrical load on the memory controller, helping keep system power draw predictable. No active cooling or additional voltage is required for rated operation.

Included components and compatibility

The package supplies two 288-pin RDIMMs totalling 128GB, labelled with part number MR44800-924K2. No software, cables or mounting hardware are bundled. Installation follows the server’s documented memory population rules; buyers needing different capacities or non-ECC modules must select another kit.

How it compares

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

Price $3,976.99
Pricier than about 76% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (2 × 64 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $31.07 per GB
Pricier than about 89% 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 numberMR44800-924K2
Total capacity128 GB (2 × 64 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 items128 GB (2 × 64 GB) DDR5 5600 MHz PC5-44800 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

How do I install the 288-Pin DDR5 RDIMM modules in the ThinkEdge SE455 V3, and what step is often missed?

Power off the server, open the chassis, align each 288-Pin DDR5 RDIMM with the slot key, press firmly until the retention clips lock, then verify in BIOS that all 128GB are detected at 5600 MT/s.

What maintenance or replacement will the 2Rx4 ECC RDIMM kit need over its service life?

The modules have no heat spreaders and no moving parts; keep the server air filters clean so airflow stays adequate, and replace a module only if ECC logs report uncorrectable errors.

What limit appears first when the 1.1V DDR5 5600 kit runs sustained workloads?

The 1.10V operating voltage and CL46 latency are fixed; under continuous load the memory controller's thermal throttling point typically caps sustained throughput before the modules themselves overheat.

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