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Two green DDR5 RDIMM modules with black chips, no heat spreaders

NEMIX RAM

NEMIX RAM 128GB (2x64GB) DDR5 4800 CL40 2Rx4 ECC RDIMM memory upgrade for THINKMATE GPX-XH20-28S4-8HGX

SKU CH-WSK4-4EM9R

128GB DDR5 4800 ECC registered dual-rank kit for ThinkMate GPU-optimised servers

  • Capacity128GB (2 x 64GB)
  • SpeedDDR5 4800 (PC5 38400)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V
  • 128 GB total capacity across two 64 GB modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • ECC registered RDIMM for error-correcting server stability
  • 2Rx4 dual-rank organisation with CL40 latency
  • 1 V operation on 288-pin DDR5 form factor

System-specific DDR5 ECC RDIMM kit

This 128 GB kit contains two 64 GB registered DDR5 modules built for the Thinkmate GPX-XH20-28S4-8HGX server. ECC and registered buffering protect data integrity in multi-GPU workloads. The modules run at 1.1 V without heat spreaders, relying on chassis airflow.

Registered 2Rx4 organisation at 4800 MT/s

Each module uses a 2Rx4 layout and operates at DDR5 4800 (PC5-38400) with CL40 latency. Registered signalling reduces electrical load on the memory controller, allowing the full two-module population. This specification determines whether the kit matches the server's qualified vendor list.

Sustained throughput under continuous GPU compute

Stress testing under load verifies stability for extended training or inference runs. Registered buffering and ECC correction maintain signal quality when all channels are saturated. The 1.1 V operating point keeps power draw predictable during prolonged high-bandwidth access.

Highlights

  • 128 GB total capacity across two 64 GB modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • ECC registered RDIMM for error-correcting server stability
  • 2Rx4 dual-rank organisation with CL40 latency
  • 1 V operation on 288-pin DDR5 form factor

Specifications

BrandNEMIX RAM
SeriesTHINKMATE Server/Workstation Compatible Series Memory
ModelTHINKMATE DDR5 4800MHZ ECC RDIMM Registered Server Memory
Part NumberMR38400-924K2
Capacity128GB (2 x 64GB)
SpeedDDR5 4800 (PC5 38400)
ECCYes
Buffered/RegisteredRegistered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.10V
Compatible SystemTHINKMATE
CAS LatencyCL40
Heat SpreaderNo
Type288-Pin DDR5 RDIMM
Rank2Rx4
FeaturesDDR5 ECC Registered RDIMM Server Motherboard Compatible
Package Content128GB (2X64GB) DDR5 4800MHZ PC5-38400 2Rx4 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

What does the 4800 MT/s rating mean once these modules are installed in the ThinkMate server?

The server memory controller runs the kit at its rated 4800 MT/s, delivering PC5-38400 bandwidth for GPU-optimised workloads.

How does the DDR5 ECC RDIMM interface limit real-world throughput?

Registered DDR5 with ECC adds one cycle of buffering and error correction, capping sustained throughput at the PC5-38400 line rate.

Will the 288-pin RDIMM modules fit the ThinkMate GPX-XH20-28S4-8HGX memory slots?

Yes, the 288-pin DDR5 RDIMM form factor matches the server's DIMM sockets exactly.

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