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Two green DDR5 RDIMM modules with gold contacts, no heat spreaders

NEMIX RAM

NEMIX RAM 256GB (2x128GB) DDR5 4800 CL40 ECC RDIMM THINKMATE GPX-QH12-12E4-2GPU GPU-Optimized memory upgrade

SKU CH-HE4N-ZP4YC

256 GB DDR5 registered ECC server memory kit (2 × 128 GB) at 4800 MT/s CL40 for ThinkMate GPU-optimised systems

  • Capacity256GB (2 x 128GB)
  • SpeedDDR5 4800 (PC5 38400)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V
  • 256 GB total capacity for GPU-intensive workloads
  • DDR5 4800 MT/s speed with PC5-38400 bandwidth
  • ECC registered RDIMM ensures data integrity under load
  • 4Rx4 dual-rank organisation maximises density per slot
  • 10 V operation reduces server power draw

System-Specific DDR5 ECC RDIMM Kit

This 256 GB kit contains two 128 GB registered DIMMs built for the Thinkmate GPX-QH12-12E4-2GPU GPU-optimised server. Each module runs at DDR5 4800 with CL40 latency and 1.1 V operation. ECC and register buffering protect data integrity in mission-critical workloads.

288-Pin Registered Design for Server Boards

The 288-pin DDR5 RDIMM form factor fits server motherboards that require registered, ECC memory. Dual-rank 4Rx4 organisation and major OEM DRAM from Samsung, Micron or Hynix support stable operation under sustained GPU compute loads. No heat spreaders are included, so chassis airflow must handle module cooling.

Upgrade Path for Memory-Constrained GPU Nodes

The kit replaces lower-capacity or slower DDR5 RDIMMs to expand the memory available for large-model training and inference. The jump is worth it when the current configuration limits batch size or forces offloading to slower storage. Systems that do not support registered ECC DDR5 cannot use this kit.

Highlights

  • 256 GB total capacity for GPU-intensive workloads
  • DDR5 4800 MT/s speed with PC5-38400 bandwidth
  • ECC registered RDIMM ensures data integrity under load
  • 4Rx4 dual-rank organisation maximises density per slot
  • 10 V operation reduces server power draw

Specifications

BrandNEMIX RAM
SeriesTHINKMATE Server/Workstation Compatible Series Memory
ModelTHINKMATE DDR5 4800MHZ ECC RDIMM Registered Server Memory
Part NumberMR38400-744K2
Capacity256GB (2 x 128GB)
SpeedDDR5 4800 (PC5 38400)
ECCYes
Buffered/RegisteredRegistered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.10V
Compatible SystemTHINKMATE
CAS LatencyCL40
Heat SpreaderNo
Type288-Pin DDR5 RDIMM
Rank4Rx4
FeaturesDDR5 ECC Registered RDIMM Server Motherboard Compatible
Package Content256GB (2X128GB) DDR5 4800MHZ PC5-38400 4Rx4 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Does the DDR5 4800 PC5-38400 rating limit bandwidth on the ThinkMate GPX-QH12-12E4-2GPU server?

The kit runs at DDR5 4800 (PC5-38400) with CL40 latency; the platform will operate the modules at that rated speed.

Will the 288-pin RDIMM modules fit the ThinkMate GPX-QH12-12E4-2GPU motherboard slots?

Each module is a 288-pin DDR5 RDIMM; the kit contains two 128 GB sticks for a total of 256 GB.

What is the correct way to seat the 4Rx4 registered modules so the server recognises the full 256 GB?

Align the notch on each 288-pin RDIMM with the slot key, press firmly until both retention clips click, then verify 256 GB in BIOS.

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