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Four green DDR5 RDIMM modules, bare circuit boards with black chips, 288 pins each

NEMIX RAM

NEMIX RAM 256GB (4x64GB) DDR5 4800 CL40 ECC RDIMM for THINKMATE GPX-XH8-22S4-8GPU memory upgrade

SKU CH-74RM-1564V

256GB DDR5 4800 ECC RDIMM kit with four 64GB modules at CL40 for Thinkmate GPX-XH8-22S4-8GPU servers

  • Total capacity256 GB (4 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 256 GB total capacity for large-scale workloads
  • DDR5 4800 speed with PC5-38400 bandwidth
  • ECC registered RDIMM protects data integrity
  • 1 V operation reduces server power draw
  • 4 x 64 GB 2Rx4 modules in 288-pin form factor

NEMIX RAM 256GB DDR5 ECC RDIMM Kit

This kit provides 256GB of DDR5 ECC registered memory in four 64GB modules. It is built for the Thinkmate GPX-XH8-22S4-8GPU GPU-optimised server. The modules run at 4800MHz with CL40 latency and 1.10V operation.

Suited for Thinkmate GPX-XH8-22S4-8GPU upgrades

The kit matches the server's registered DIMM requirement and ECC capability. It is not for systems that need unbuffered UDIMM modules or non-ECC memory. Builders using desktop or consumer platforms should look elsewhere.

Installation follows standard RDIMM procedure

Align the 288-pin modules with the server's DDR5 slots and press until the latches lock. Common issues include mixing registered and unbuffered DIMMs or populating slots in an unsupported order; consult the system manual for the correct population sequence.

How it compares

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

Price $6,860.99
Pricier than about 83% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (4 × 64 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $26.80 per GB
Pricier than about 74% 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 numberMR38400-924K4
Total capacity256 GB (4 × 64 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 rank2Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsTHINKMATE
In the box
Included items256 GB (4 × 64 GB) DDR5 4800 MHz PC5-38400 2Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Does the THINKMATE GPX-XH8-22S4-8GPU server require all 8 DIMM slots to be populated for this 4-module kit to operate correctly?

The kit contains four 64 GB DDR5 4800 CL40 ECC RDIMMs totalling 256 GB. The server's memory controller will recognise each registered module independently, so the kit functions with any valid population order defined in the system manual.

Can I keep existing DDR5 4800 ECC RDIMMs installed while adding this 256 GB kit to the same server?

All modules in the kit are 2Rx4 registered DDR5 4800 CL40 at 1.1 V. Mixing ranks or speeds is not recommended; the platform will run at the lowest common speed and may require identical rank configuration per channel for stability.

How do I confirm the server is using the full 256 GB at DDR5 4800 with ECC active after installation?

Enter the BIOS or UEFI and verify the memory summary shows 256 GB total, 4800 MT/s data rate and ECC enabled. Operating-system tools such as dmidecode or lsmem will also report each 64 GB 2Rx4 RDIMM at PC5-38400 with ECC functional.

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