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Six green DDR5 RDIMM modules in anti-static tray

NEMIX RAM

NEMIX RAM 768GB (6x128GB) DDR5 4800 ECC RDIMM memory upgrade

SKU CH-P73H-8WH41

A 768 GB DDR5 4800 ECC registered server memory kit of six 128 GB modules at 1.1 V CL40 for ThinkMate tower servers

  • Total capacity768 GB (6 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 768 GB total capacity from six 128 GB modules
  • DDR5 4800 speed rated at PC5-38400 for high throughput
  • ECC registered RDIMM design protects data integrity
  • 1 V operation at CL40 latency reduces power draw
  • Validated for Thinkmate TWX-XS8 tower server platforms

Server-grade capacity kit

This NEMIX RAM kit delivers 768GB of DDR5 memory across six 128GB registered DIMMs. It is built for Thinkmate TWX-XS8 tower servers that require high-density ECC modules for virtualisation, database or compute workloads.

Suited for Thinkmate towers needing maximum DIMM

Administrators expanding a TWX-XS8-24S4 or TWX-XS8-14S4 to its full memory potential will use this kit. Systems that only accept unbuffered UDIMMs or run at lower DDR5 speeds cannot use these registered 4Rx4 modules.

Straightforward DIMM installation

Modules install in minutes by seating each 288-pin RDIMM into the server's slots following the manufacturer's population guide. The most common issue is ignoring the required slot order for 4Rx4 registered DIMMs, which prevents the system from posting.

How it compares

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

Price $21,341.99
Pricier than about 91% of the 21,161 comparable items (median $397.99).
Total capacity 768 GB (6 × 128 GB)
Higher than about 92% of the 20,941 comparable items (median 32 GB).
Price per GB $27.79 per GB
Pricier than about 78% 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 numberMR38400-744K6
Total capacity768 GB (6 × 128 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 rank4Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsTHINKMATE
In the box
Included items768 GB (6 × 128 GB) DDR5 4800 MHz PC5-38400 4Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Does my Thinkmate TWX-XS8-24S4 or TWX-XS8-14S4 server need a specific BIOS version or CPU to run this 768GB DDR5 4800 kit?

The kit is validated for the Thinkmate TWX-XS8-24S4 and TWX-XS8-14S4 tower servers. Consult the server manual for any required BIOS updates before installing the six 128GB modules.

Can I mix these 128GB 4Rx4 registered ECC modules with smaller DDR5 RDIMMs already installed in my Thinkmate server?

Mixing different capacities or ranks is not recommended. For stable operation, populate all channels with identical 128GB 4Rx4 modules so the memory controller trains at DDR5 4800 with CL40 timings.

How do I verify the full 768GB is recognised and ECC is active after installing the six modules?

Enter the server BIOS or UEFI and confirm 768GB total capacity at 4800 MT/s. Check the ECC status field — it should show enabled or active for each of the six 288-pin RDIMMs.

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