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Six green DDR4 RDIMM modules in a row

NEMIX RAM

NEMIX RAM 768GB (6x128GB) DDR4 3200 CL22 4Rx4 ECC RDIMM ThinkMate memory upgrade

SKU CH-88EM-PNP13

A 768GB registered DDR4 3200 ECC kit of six 128GB modules at CL22 for ThinkMate servers

  • Total capacity768 GB (6 × 128 GB)
  • Rated speedDDR4 3200 (PC4 25600)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL22
  • Buffer typeRegistered
  • Rated voltage1.2 V
  • 768GB total capacity from six 128GB modules for large memory workloads
  • DDR4 3200 speed with PC4-25600 bandwidth for fast data throughput
  • ECC registered RDIMM design detects and corrects errors to protect data integrity
  • 2V operation reduces power draw in dense server configurations
  • Validated for ThinkMate HDX-XN24-52S3, HDX-XN24-32S3, HDX-XN12-52S3, HDX-XN12-32S3 systems

Capacity and fit

This NEMIX RAM kit delivers 768GB through six 128GB DDR4 3200 registered DIMMs built for ThinkMate HDX servers. The modules run at 1.2V with CL22 latency and a 4Rx4 organisation. Each stick is a 288-pin RDIMM with ECC and no heat spreader.

Who this suits and who should look elsewhere

IT teams running memory-intensive workloads on the listed ThinkMate HDX-XN24 or HDX-XN12 models can populate all twelve slots with two of these kits. Buyers who need a different capacity, a different speed grade, or unbuffered UDIMMs for a workstation board should look elsewhere. Systems that only accept single-rank or dual-rank modules will not support these 4Rx4 parts.

Deciding specification

The 4Rx4 rank structure is the single detail that decides compatibility. A motherboard qualified for 4Rx4 RDIMMs at DDR4 3200 will accept the kit; a board limited to 1Rx4, 2Rx4 or 2Rx8 ranks will not. Check the server’s qualified-vendor list before ordering.

How it compares

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

Price $5,009.99
Pricier than about 80% 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 $6.52 per GB
Cheaper than about 60% 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 DDR4 3200 MHz ECC RDIMM Registered Server Memory
Part numberMR25600-744K6
Total capacity768 GB (6 × 128 GB)
Product type288-Pin DDR4 RDIMM
Performance
Rated speedDDR4 3200 (PC4 25600)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL22
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank4Rx4
Power
Rated voltage1.2 V
Compatibility
Compatible systemsTHINKMATE
In the box
Included items768 GB (6 × 128 GB) DDR4 3200 MHz PC4-25600 4Rx4 1.2 V CL22 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

How do I install the 6x128GB DDR4 3200 CL22 4Rx4 ECC RDIMM modules in my ThinkMate server and which step is commonly missed?

Power down the server, open the chassis, align each 288-pin module with the DIMM slot key notch, press firmly until the retention clips lock on both ends, then populate all six slots following the motherboard population guide; the step often missed is verifying the correct channel order for 4Rx4 registered modules in the manual.

What maintenance or replacement will the 768GB DDR4 3200 ECC RDIMM kit need over its service life?

The modules have no heat spreaders and no moving parts, so no scheduled maintenance is required; replacement is only needed if a module fails ECC error correction or the server is upgraded to a platform that does not support DDR4 3200 4Rx4 registered memory.

What is the first limit that appears when the 6x128GB DDR4 3200 CL22 4Rx4 ECC RDIMM kit runs under sustained load?

The primary limit is the CL22 latency at 3200 MT/s, which sets the minimum access delay; sustained heavy workloads will encounter this timing boundary before bandwidth or voltage constraints become limiting factors.

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