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Two green 288-pin DDR5 RDIMM modules with black chips no heat spreader

NEMIX RAM

NEMIX RAM 64GB (2x32GB) DDR5 5600 ECC RDIMM CL46 1.1V 2Rx4 memory upgrade for Lenovo ThinkSystem ST650 V3

SKU CH-4RG8-Z9FKH

A 64 GB DDR5 registered ECC kit with two 32 GB modules at 5600 MT/s, CL46 and 1.1 V for Lenovo ThinkSystem ST650 V3

  • Total capacity64 GB (2 × 32 GB)
  • Rated speedDDR5 5600 (PC5 44800)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL46
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • ECC protection prevents data errors in critical workloads
  • DDR5 5600 speed delivers high bandwidth for server tasks
  • Registered design stabilises signal integrity on heavy loads
  • 64 GB kit (2 × 32 GB) expands capacity for virtualisation
  • 10 V operation reduces power draw per module

ThinkSystem ST650 V3 DDR5 ECC RDIMM Kit

This 64 GB kit provides two 32 GB DDR5 5600 ECC registered DIMMs built for the Lenovo ThinkSystem ST650 V3 tower server. The modules run at PC5-44800 speed with CL46 latency at 1.1 V and use a 2Rx4 rank configuration.

Suited for ThinkSystem ST650 V3 capacity upgrades

The kit targets administrators expanding memory in the specified Lenovo tower server where ECC registered modules are required. Buyers needing non-ECC unbuffered DIMMs, different capacities, or compatibility with other platforms should look at something else.

Deciding spec: DDR5 5600 ECC RDIMM 2Rx4

The single specification that confirms fit is the DDR5 5600 ECC registered 288-pin RDIMM with 2Rx4 organisation. If the server demands a different speed, rank layout or voltage, this kit will not meet the requirement.

How it compares

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

Price $1,881.99
Pricier than about 67% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB (2 × 32 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $29.41 per GB
Pricier than about 83% 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 numberMR44800-324K2
Total capacity64 GB (2 × 32 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 rank2Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsLenovo
In the box
Included items64 GB (2 × 32 GB) DDR5 5600 MHz PC5-44800 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

How much power does the 1.1V DDR5 5600 kit draw when the ThinkSystem ST650 V3 runs continuously?

Each module operates at 1.10V; total power depends on server load and memory-controller utilisation, so consult the platform's power budget for exact figures.

What must the Lenovo ThinkSystem ST650 V3 already have to accept this 2Rx4 registered ECC kit?

The server needs DDR5 RDIMM slots, a BIOS that supports 5600 MT/s registered ECC memory, and an available pair of channels for the 2 x 32GB configuration.

Will the CL46 2Rx4 modules work alongside slower DDR5 DIMMs already installed in the ST650 V3?

The server will run all populated DIMMs at the lowest common speed and latency; mixing ranks or timings is supported but reduces overall memory performance.

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