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Two green DDR5 RDIMM sticks, 288 pins, no heat spreader

NEMIX RAM

NEMIX RAM 256GB 2x128GB DDR5 4800 ECC RDIMM THINKMATE GPX-XH8-22S4-8GPU memory upgrade

SKU CH-8Q6R-1WKC3

A 256GB kit of two 128GB DDR5 4800 ECC RDIMM modules at 1.1V CL40 for ThinkMate GPX-XH8-22S4-8GPU servers

  • Total capacity256 GB (2 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 256 GB total capacity across two 128 GB modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • ECC registered RDIMM detects and corrects data errors
  • Low 1.10 V operating voltage reduces power draw
  • Validated for ThinkMate GPX-XH8-22S4-8GPU server compatibility

Targeted Server Memory Upgrade

This 256GB kit delivers 2 x 128GB DDR5 4800 registered ECC modules built for the Thinkmate GPX-XH8-22S4-8GPU server. Each stick runs at 1.1V with CL40 latency and a 4Rx4 organisation. The 288-pin RDIMM form factor fits the platform's memory slots directly.

Suited For And Not Suited For

IT teams expanding the Thinkmate GPX-XH8-22S4-8GPU with validated ECC registered capacity will find the modules drop in without configuration guesswork. Buyers who need unbuffered DIMMs, non-ECC memory, or a different pin count should look elsewhere because this kit is fixed at registered 288-pin DDR5.

Build Integration

The two modules populate a matched pair of slots and draw 1.1V, leaving remaining channels open for further registered expansion. No heat spreader is fitted, so airflow across the bare PCB must be provided by the server's existing cooling design. The kit adds 256GB of error-correcting capacity without requiring firmware changes on the qualified platform.

How it compares

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

Price $7,886.99
Pricier than about 84% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (2 × 128 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $30.81 per GB
Pricier than about 88% 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 numberMR38400-744K2
Total capacity256 GB (2 × 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 items256 GB (2 × 128 GB) DDR5 4800 MHz PC5-38400 4Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

My THINKMATE GPX-XH8-22S4-8GPU server has empty 288-pin DDR5 slots — will this 256 GB kit work without adding anything else?

Yes, the kit provides two 128 GB DDR5 4800 ECC RDIMMs at 1.10 V that plug directly into the server's 288-pin DDR5 slots; no extra hardware is required.

Can I keep my existing DDR5 4800 RDIMMs installed while adding these two 128 GB modules?

The modules run at DDR5 4800 PC5-38400 CL40 1.10 V; mixing is possible only if the installed RDIMMs share the same speed, voltage, latency and registered ECC specification.

After installing both 128 GB modules, how do I verify the full 256 GB is recognised and running at DDR5 4800 with ECC active?

Check the BIOS or UEFI memory summary — it should show 256 GB total, DDR5 4800 MT/s, CL40 timing, 1.10 V and ECC enabled for each 128 GB RDIMM.

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