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Twelve green DDR5 RDIMM sticks in a row

NEMIX RAM

NEMIX RAM 768GB (12x64GB) DDR5 4800 ECC RDIMM THINKMATE 611C-TN4R 621C-TN12R memory upgrade

SKU CH-YBEV-CW3VY

A 768 GB DDR5 registered ECC kit of twelve 64 GB modules at 4800 MT/s CL40 for ThinkMate 611C-TN4R and 621C-TN12R servers

  • Total capacity768 GB (12 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 768 GB total capacity from twelve 64 GB modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • ECC registered design protects data integrity in servers
  • 10 V operation with CL40 latency for efficient performance
  • Validated for ThinkMate 611C-TN4R and 621C-TN12R systems

Server memory upgrade

This 768 GB kit contains twelve 64 GB DDR5 4800 registered ECC RDIMMs built for THINKMATE SuperServer 611C-TN4R and 621C-TN12R platforms. It targets administrators who need maximum registered capacity in a validated configuration.

Registered ECC replacement

The modules replace slower or smaller registered DIMMs in the same 288-pin slots, adding bandwidth and error correction without changing motherboard infrastructure. The jump is worth it when workloads exceed current memory headroom and the platform supports DDR5 4800 registered operation.

Capacity and headroom

Twelve dual-rank modules deliver 768 GB at CL40 latency and 1.10 V, handling large virtualisation clusters, in-memory databases and heavy compute jobs. Headroom runs out when the server reaches its maximum DIMM count or when applications demand speeds above DDR5 4800.

How it compares

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

Price $20,806.99
Pricier than about 91% of the 21,161 comparable items (median $397.99).
Total capacity 768 GB (12 × 64 GB)
Higher than about 92% of the 20,941 comparable items (median 32 GB).
Price per GB $27.09 per GB
Pricier than about 75% 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 numberMR38400-924K12
Total capacity768 GB (12 × 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 items768 GB (12 × 64 GB) DDR5 4800 MHz PC5-38400 2Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Will these 288-pin DDR5 modules fit the memory slots in my Thinkmate 611C-TN4R or 621C-TN12R server?

Yes, the 288-pin DDR5 RDIMM form factor matches the registered DIMM slots used in both Thinkmate SuperServer models listed.

What is the correct order to populate the 12 modules so the server recognises all 768 GB?

Follow the motherboard manual's channel sequence; a common mistake is skipping a channel or mixing ranks, which prevents the full 12 x 64 GB kit from being detected.

How can I tell if one of the 64 GB modules has failed after the system is running?

ECC logs correctable errors in the OS or IPMI; a rising corrected-error count on a specific DIMM slot identifies the faulty 64 GB module for replacement.

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