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Eight green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM 128GB (8x16GB) DDR5 4800 CL40 ECC RDIMM 1Rx8 1.1V ThinkMate GPX-XH8-22S4-8GPU memory upgrade

SKU CH-9HK4-YDRRZ

128 GB kit of eight 16 GB DDR5 4800 CL40 ECC registered RDIMMs at 1.1 V for ThinkMate GPX-XH8-22S4-8GPU servers

  • Total capacity128 GB (8 × 16 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 128 GB total capacity across eight 16 GB modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • ECC registered RDIMM design protects data integrity
  • 1 V operating voltage for efficient power use
  • Validated for ThinkMate GPX-XH8-22S4-8GPU server compatibility

System-Specific DDR5 Kit

This 128 GB kit contains eight 16 GB DDR5 4800 RDIMMs built for the ThinkMate GPX-XH8-22S4-8GPU server. ECC and registered operation protect data integrity in GPU-dense workloads. The modules run at 1.1 V and carry CL40 latency.

Thermals and Power Draw

Low 1.1 V voltage keeps power consumption modest across all eight sticks under typical server loads. No heat spreaders are fitted, so airflow through the chassis handles cooling. Registered buffering adds negligible latency while stabilising the memory bus.

Included Kit Contents

The package delivers the full 128 GB as a matched eight-module set, removing the need to source individual sticks. No extra software or accessories are bundled; compatibility is validated for the target ThinkMate platform.

How it compares

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

Price $3,226.99
Pricier than about 74% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (8 × 16 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $25.21 per GB
Pricier than about 70% 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 DDR5 4800 MHz ECC RDIMM Registered Server Memory
Part numberMR38400-618K8
Total capacity128 GB (8 × 16 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL40
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank1Rx8
Power
Rated voltage1.1 V
Compatibility
Compatible systemsTHINKMATE
In the box
Included items128 GB (8 × 16 GB) DDR5 4800 MHz PC5-38400 1Rx8 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

How do I install these 288-pin DDR5 RDIMMs in the ThinkMate GPX-XH8-22S4-8GPU, and which step do people get wrong?

Power down, open the chassis, align each module's notch with the slot key, press firmly until both retention clips click, then repeat for all eight 16 GB sticks. The step most often missed is seating every module fully so both clips engage; a partially seated RDIMM will prevent the server from posting.

What maintenance or replacement will this 128 GB DDR5 4800 ECC registered kit need later?

No routine maintenance is required; the modules have no heat spreaders and run at 1.10 V. If a stick fails, replace the faulty 16 GB RDIMM with an identical DDR5 4800 CL40 1Rx8 ECC registered module to keep rank balance and error-correction coverage across all eight slots.

What limit shows up first under sustained load with these CL40 1Rx8 registered DIMMs?

The primary limit is the DDR5 4800 MT/s data rate combined with CL40 latency; under continuous heavy throughput the memory controller will hit bandwidth and timing constraints before thermal throttling becomes an issue, since the modules operate at the standard 1.1 V without additional cooling.

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