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Two green circuit boards with gold edge connectors and black memory chips

NEMIX RAM

NEMIX RAM 64GB (2x32GB) DDR4 2666 ECC LRDIMM memory upgrade

SKU CH-4NS8-9W27P

Adds 64 GB of DDR4 2666 ECC load-reduced memory in a two-module kit for Thinkmate GPU-optimised servers

  • Total capacity64 GB (2 × 32 GB)
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL19
  • Buffer typeLoad Reduced
  • Rated voltage1.2 V
  • 64GB total capacity with two 32GB modules
  • DDR4 2666 speed rated at PC4-21300 bandwidth
  • ECC load-reduced design for server error correction
  • 2V operation at CL19 latency timing
  • 288-pin LRDIMM form factor for ThinkMate GPX-QT8-24E2-8GPU servers

ThinkMate GPU-Server Memory Upgrade

This 64 GB kit adds two 32 GB DDR4 2666 ECC LRDIMM modules to ThinkMate GPX-QT8-24E2-8GPU servers. It targets administrators who need registered load-reduced memory for multi-GPU compute nodes. Buyers requiring unbuffered DIMMs or non-ECC memory for consumer platforms cannot use this kit.

Thermals and Power Profile

Each module runs at 1.20 V with a CL19 latency, keeping power draw low for dense 24-bay chassis. The load-reduced buffer reduces electrical loading on the memory bus, which helps maintain signal integrity without active cooling on the DIMMs themselves. No heat spreaders are fitted, so airflow across the 288-pin slots must be maintained by the server chassis fans.

Included Kit Contents

The package supplies a matched pair of 32 GB 2Rx4 modules tested under load for ThinkMate compatibility. No additional software, cables or mounting hardware are bundled; the memory installs directly into the server DIMM slots. Lifetime replacement coverage is provided by the manufacturer, but warranty service terms are handled outside this product description.

How it compares

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

Price $445.99
Typical for this category: the median of 21,161 items is $397.99.
Total capacity 64 GB (2 × 32 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $6.97 per GB
Cheaper than about 57% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineTHINKMATE Server/Workstation Compatible Series Memory
Model nameTHINKMATE DDR4 2666 MHz ECC LRDIMM Load Reduced Server Memory
Part numberML21300-324K2
Total capacity64 GB (2 × 32 GB)
Product type288-Pin DDR4 LRDIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL19
ECC supportYes
Buffer typeLoad Reduced
Heat spreaderNo
Memory rank2Rx4
Power
Rated voltage1.2 V
Compatibility
Compatible systemsTHINKMATE
In the box
Included items64 GB (2 × 32 GB) DDR4 2666 MHz PC4-21300 2Rx4 1.2 V CL19 288-PIN ECC LRDIMM Load Reduced Server Memory KIT

Questions about this item

How do I install the 288-pin DDR4 LRDIMM modules in the ThinkMate GPX-QT8-24E2-8GPU server, and which step is commonly missed?

Power down the server, open the chassis, locate the DDR4 memory slots, align the notch on each 288-pin module with the slot key, press firmly until the retention clips click, then verify in BIOS that all 64 GB are recognised at 2666 MHz; the step most often missed is seating both modules fully so the clips engage on both sides.

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

The modules have no heat spreaders and no moving parts, so routine maintenance is limited to keeping server airflow clean; replacement is only required if a module fails ECC correction or the server is upgraded beyond 64 GB.

What limit appears first when the 1.2 V CL19 LRDIMMs run sustained workloads on the ThinkMate GPU-optimised server?

The memory controller caps bandwidth at the rated 2666 MT/s PC4-21300 speed, so sustained throughput cannot exceed that ceiling regardless of load duration.

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