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Sixteen bare green DDR5 RDIMM sticks in a row

NEMIX RAM

NEMIX RAM 256GB (16x16GB) DDR5 5600 CL46 ECC RDIMM ST650 V3 memory upgrade

SKU CH-2ZTC-BW8QW

Adds 256GB of DDR5 5600 ECC registered memory in a 16-module kit for the Lenovo ThinkSystem ST650 V3 tower server

  • Total capacity256 GB (16 × 16 GB)
  • Rated speedDDR5 5600 (PC5 44800)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL46
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 256 GB total capacity from 16 matched 16 GB modules
  • DDR5 5600 speed with CL46 latency for responsive server workloads
  • ECC registered design detects and corrects memory errors automatically
  • 1 V operation reduces power draw in dense configurations
  • Validated for Lenovo ThinkSystem ST650 V3 tower server compatibility

Lenovo ThinkSystem ST650 V3 DDR5 Kit

This 256GB kit contains sixteen 16GB DDR5 5600 ECC RDIMM modules built for the Lenovo ThinkSystem ST650 V3 tower server. Registered design and on-die ECC protect data integrity in multi-socket workloads. The kit is sold new and validated for that platform.

288-Pin RDIMM Installation Notes

Modules slot into the server's 288-pin DDR5 RDIMM sockets using standard tool-less levers. Registered buffering adds a clock cycle, so the BIOS must be configured for registered DIMM operation. Mixing registered and unbuffered DIMMs will prevent boot. Populate all sixteen slots identically to keep memory channels balanced.

256GB Registered ECC Capacity

Sixteen ranks of 1Rx8 Samsung, Micron or Hynix die deliver 256GB at 1.1V with CL46 latency. The density suits large virtualisation hosts, in-memory databases and high-thread-count compute nodes. Workloads that exceed 256GB or require load-reduced DIMM signalling will need a different memory topology.

How it compares

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

Price $7,700.99
Pricier than about 84% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (16 × 16 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $30.08 per GB
Pricier than about 86% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineNEMIX RAM Original Series Server Memory
Model nameDDR5 ECC RDIMM Registered Server Memory
Part numberMR44800-618K16
Total capacity256 GB (16 × 16 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 5600 (PC5 44800)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL46
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank1Rx8
Power
Rated voltage1.1 V
Compatibility
Compatible systemsLenovo
In the box
Included items256 GB (16 × 16 GB) DDR5 5600 MHz PC5-44800 1Rx8 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

How do I verify the 256GB kit is running at 5600MHz with CL46 after installation?

Enter the system BIOS or UEFI and confirm the memory speed reads 5600MHz and CAS latency shows CL46; the registered ECC modules will also report 1.10V and 1Rx8 organisation.

What is included in the package and do I need any extra parts for the ThinkSystem ST650 V3?

The box contains sixteen 16GB DDR5 288-pin ECC RDIMM modules totalling 256GB; no additional cables, brackets or heat spreaders are required for the ST650 V3.

Which capacity kit should I choose if I want to fill all memory slots on the ST650 V3?

Select the 256GB kit (sixteen 16GB modules) to fully populate the server's DIMM slots with the supported 1Rx8 registered ECC configuration.

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