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Two green DDR5 RDIMM modules, bare chips, no heat spreader

NEMIX RAM

NEMIX RAM 192GB (2x96GB) DDR5 5600MHz ECC RDIMM CL46 2Rx4 1.1V 288-Pin Lenovo ThinkEdge SE455i V3

SKU CH-X5WG-DXN38

A 192 GB DDR5 ECC registered DIMM kit, two 96 GB modules at 5600 MHz CL46 1.1 V, built for the Lenovo ThinkEdge SE455i V3 inferencing server

  • Total capacity192 GB (2 × 96 GB)
  • Rated speedDDR5 5600 (PC5 44800)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL46
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 192GB total capacity for large inferencing workloads
  • ECC RDIMM registered design protects data integrity
  • DDR5 5600MHz speed feeds high-throughput tasks
  • 1V operation reduces server power draw
  • Validated for Lenovo ThinkEdge SE455i V3 compatibility

Capacity and Compatibility

This NEMIX RAM kit delivers 192 GB of DDR5 memory in a matched pair of 96 GB modules. It is built specifically for the Lenovo ThinkEdge SE455i V3 inferencing server and will not fit other platforms. The registered ECC design targets workloads that demand data integrity at scale.

Build Integration

Each module uses a 288-pin DDR5 RDIMM form factor and operates at 1.10 V with a CL46 latency. The 2Rx4 organisation places two ranks on a single channel, allowing the server's memory controller to address the full capacity without additional DIMM slots. No heat spreader is included, so airflow in the chassis must be sufficient for bare modules.

Upgrade Context

The kit replaces lower-capacity DDR5 RDIMM sets or expands a partially populated server to its maximum supported density. The jump is worthwhile when inference jobs, virtualization hosts or database buffers exceed the memory ceiling of smaller configurations. Buyers who need non-ECC memory, a different pin count or a speed grade outside PC5-44800 should look elsewhere.

How it compares

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

Price $5,473.99
Pricier than about 81% of the 21,161 comparable items (median $397.99).
Total capacity 192 GB (2 × 96 GB)
Higher than about 75% of the 20,941 comparable items (median 32 GB).
Price per GB $28.51 per GB
Pricier than about 80% 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 numberMR44800-9624K2
Total capacity192 GB (2 × 96 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 items192 GB (2 × 96 GB) DDR5 5600 MHz PC5-44800 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

What limits performance when the 5600MHz CL46 2Rx4 modules run continuously under full load?

The CL46 latency at 5600MHz sets the timing ceiling; sustained throughput is bound by the JEDEC-standard data rate and registered buffer overhead.

How much heat and power do the 1.1V registered DIMMs generate during all-day operation?

Each 96GB module runs at 1.1V without a heat spreader; the registered design adds minimal buffer current, so thermal output stays within standard DDR5 RDIMM limits.

Which motherboard feature must the Lenovo ThinkEdge SE455i V3 already provide for this 288-pin ECC RDIMM kit to function?

The server board must support DDR5 RDIMM slots with ECC and registered memory architecture to accept the 2Rx4 configuration.

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