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Four green DDR4 LRDIMM modules with black chips, no heat spreaders

NEMIX RAM

NEMIX RAM 256GB (4x64GB) DDR4 3200 CL22 4Rx4 ECC LRDIMM 1.2V 288-pin memory upgrade

SKU CH-NJA7-ZGE5P

256 GB DDR4 server kit with four 64 GB load-reduced ECC modules at 3200 MHz CL22 and 1.2 V

  • Capacity256GB (4 x 64GB)
  • SpeedDDR4 3200 (PC4 25600)
  • ECCYes
  • Buffered/RegisteredLoad Reduced
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.20V

Capacity 256GB 4X64GB

  • 256 GB total capacity from four 64 GB modules
  • DDR4 3200 speed with PC4-25600 bandwidth
  • ECC and load-reduced design for server reliability
  • 2 V operation reduces power draw
  • Validated for ASRock Rack EPYCD8-2T motherboard

Targeted server upgrade

This 256GB kit delivers four 64GB DDR4 LRDIMM modules rated at 3200MHz with CL22 latency. It is built for the ASRock Rack EPYCD8-2T motherboard and uses ECC load-reduced technology to support high-density memory configurations in compatible server platforms.

Thermal and power profile

Operating at 1.2V, the modules run without heat spreaders and rely on server chassis airflow for cooling. Load-reduced buffering reduces electrical load on the memory controller, helping to keep power draw predictable during sustained workloads.

Capacity leap from standard RDIMM

The 4Rx4 organisation allows this kit to reach 256GB where standard registered DIMMs would top out at lower densities. The jump is worthwhile when the motherboard qualifies LRDIMM populations and the application needs maximum memory capacity per socket.

Highlights

  • 256 GB total capacity from four 64 GB modules
  • DDR4 3200 speed with PC4-25600 bandwidth
  • ECC and load-reduced design for server reliability
  • 2 V operation reduces power draw
  • Validated for ASRock Rack EPYCD8-2T motherboard

Specifications

BrandNEMIX RAM
SeriesASRock Server Motherboard Compatible Series Memory
ModelASRock DDR4 3200MHZ ECC LRDIMM Load Reduced Server Memory
Part NumberML25600-944K4
Capacity256GB (4 x 64GB)
SpeedDDR4 3200 (PC4 25600)
ECCYes
Buffered/RegisteredLoad Reduced
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.20V
Compatible SystemASRock
CAS LatencyCL22
Heat SpreaderNo
Type288-Pin DDR4 LRDIMM
Rank4Rx4
FeaturesDDR4 ECC LRDIMM Load Reduced Server Motherboard Compatible
Package Content256GB (4X64GB) DDR4 3200MHZ PC4-25600 4Rx4 1.2V CL22 288-PIN ECC LRDIMM Load Reduced Server Memory KIT

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Questions about this item

How do I install the 288-pin DDR4 LRDIMM modules in the ASRock Rack EPYCD8-2T, and what step is often missed?

Insert each 64GB module into the correct DIMM slots per the motherboard manual, ensuring the notch aligns with the 288-pin key, then press firmly until both retention clips lock; the step often missed is populating all four channels in the prescribed order for quad-channel operation.

What maintenance or replacement will the 4Rx4 ECC LRDIMM kit need over time?

The modules have no heat spreaders and no moving parts, so no routine maintenance is required; replacement is only necessary if a module fails, which the ECC functionality helps detect by correcting single-bit errors and reporting multi-bit errors.

What limit appears first when the 256GB kit runs sustained workloads at 3200 MT/s?

The CAS latency of CL22 at 1.2V sets the timing boundary; under continuous load the memory controller will hit this latency ceiling before any thermal or voltage limit becomes a factor.

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