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Eight green DDR4 LRDIMM modules in anti-static packaging

NEMIX RAM

NEMIX RAM 512GB (8x64GB) DDR4 2666 ECC LRDIMM CL19 288-Pin Server Memory Upgrade

SKU CH-NR82-90HM2

512 GB kit of eight 64 GB DDR4 2666 ECC load-reduced DIMMs for ThinkMate GPU-optimised servers

  • Capacity512GB (8 x 64GB)
  • SpeedDDR4 2666 (PC4 21300)
  • ECCYes
  • Buffered/RegisteredLoad Reduced
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.20V
  • 512 GB total capacity powers large virtualization clusters with eight 64 GB modules
  • DDR4 2666 speed at CL19 latency feeds multi-GPU compute pipelines
  • ECC load-reduced design maintains data integrity under sustained heavy workloads
  • 2 V operation reduces power draw across fully populated server chassis
  • Validated for ThinkMate GPX-QT8-24E2-8GPU GPU-optimized platforms

512 GB DDR4 2666 ECC LRDIMM kit

This eight-module kit delivers 512 GB of DDR4 2666 ECC LRDIMM memory for Thinkmate GPX-QT8-24E2-8GPU servers. Each 64 GB module operates at 1.2 V with CL19 latency and a 4Rx4 rank structure. The load-reduced design helps maintain signal integrity across fully populated memory channels.

Sustained load behaviour

Modules are stress tested under load to verify stability during extended server workloads. ECC circuitry corrects single-bit errors in real time, preventing data corruption during continuous operation. The 1.2 V operating voltage supports consistent throughput without thermal throttling in dense configurations.

DDR4 interface limits

The DDR4 2666 interface caps peak bandwidth at the PC4-21300 specification. LRDIMM buffering reduces electrical load on the memory controller, allowing eight ranks per channel where standard RDIMMs would not. Builders needing capacity beyond 512 GB per server must evaluate platform-specific memory ceiling limits.

Highlights

  • 512 GB total capacity powers large virtualization clusters with eight 64 GB modules
  • DDR4 2666 speed at CL19 latency feeds multi-GPU compute pipelines
  • ECC load-reduced design maintains data integrity under sustained heavy workloads
  • 2 V operation reduces power draw across fully populated server chassis
  • Validated for ThinkMate GPX-QT8-24E2-8GPU GPU-optimized platforms

Specifications

BrandNEMIX RAM
SeriesTHINKMATE Server/Workstation Compatible Series Memory
ModelTHINKMATE DDR4 2666MHZ ECC LRDIMM Load Reduced Server Memory
Part NumberML21300-944K8
Capacity512GB (8 x 64GB)
SpeedDDR4 2666 (PC4 21300)
ECCYes
Buffered/RegisteredLoad Reduced
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.20V
Compatible SystemTHINKMATE
CAS LatencyCL19
Heat SpreaderNo
Type288-Pin DDR4 LRDIMM
Rank4Rx4
FeaturesDDR4 ECC LRDIMM Load Reduced Server Motherboard Compatible
Package Content512GB (8X64GB) DDR4 2666MHZ PC4-21300 4Rx4 1.2V CL19 288-PIN ECC LRDIMM Load Reduced Server Memory KIT

Questions about this item

Does the 1.2 V DDR4 LRDIMM kit run cooler than standard RDIMMs under sustained load?

Load-reduced modules buffer the data bus, lowering electrical loading on the memory controller and typically reducing heat output compared with equivalent-capacity RDIMMs at the same 1.2 V.

Does the ThinkMate server need a specific BIOS revision or CPU generation to recognise 4Rx4 LRDIMMs at 2666 MT/s?

The kit is validated for ThinkMate GPX-QT8-24E2-8GPU systems; the platform firmware and processor must support DDR4-2666 LRDIMM operation for the modules to train at rated speed.

Can I mix these 4Rx4 LRDIMMs with older 1Rx4 or 2Rx4 RDIMMs in the same ThinkMate chassis?

LRDIMM and RDIMM technologies cannot be mixed on the same memory channel; all populated slots must use the same module type for the server to initialise memory correctly.

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