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Two green DDR5 UDIMM sticks without heat spreaders, 64GB kit

NEMIX RAM

NEMIX RAM 64GB (2x32GB) DDR5 5600 ECC UDIMM CL46 1.1V Lenovo ThinkSystem ST250 V3 memory upgrade

SKU CH-CMT2-T6Y9S

ECC unbuffered DDR5 kit adds 64 GB at 5600 MT/s and CL46 for the ThinkSystem ST250 V3

  • Total capacity64 GB (2 × 32 GB)
  • Rated speedDDR5 5600 (PC5 44800)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL46
  • Buffer typeUnbuffered
  • Rated voltage1.1 V
  • 64 GB total capacity for larger workloads
  • DDR5 5600 speed for faster data rates
  • ECC protection detects and corrects memory errors
  • 1 V operation reduces power consumption
  • Validated for Lenovo ThinkSystem ST250 V3 compatibility

System-specific DDR5 ECC kit for Lenovo

This 64 GB kit contains two 32 GB unbuffered UDIMM modules built for the Lenovo ThinkSystem ST250 V3 tower server. Each module runs at DDR5 5600 with a CAS latency of CL46 and operates at 1.1 V. The memory includes on-die ECC for data integrity in server workloads.

Replaces slower or lower-capacity DDR5 memory

Upgrading from a smaller kit or from modules rated below 5600 MHz adds bandwidth for virtualization, databases and multi-user applications. The jump is worth it when the server shows memory pressure or when the workload demands the full 64 GB capacity.

Verify DDR5 UDIMM slots

The ST250 V3 must accept 288-pin DDR5 unbuffered ECC UDIMMs and support 2Rx8 dual-rank modules at 5600 MHz. Confirm the motherboard firmware recognises the full 64 GB kit and that no populated slots block the upgrade.

How it compares

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

Price $1,338.99
Pricier than about 63% 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 $20.92 per GB
Pricier than about 66% 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 Memory
Model nameDDR5 ECC Unbuffered UDIMM Memory
Part numberME44800-328K2
Total capacity64 GB (2 × 32 GB)
Product type288-Pin DDR5 ECC UDIMM
Performance
Rated speedDDR5 5600 (PC5 44800)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL46
ECC supportYes
Buffer typeUnbuffered
Heat spreaderNo
Memory rank2Rx8
Power
Rated voltage1.1 V
Compatibility
Compatible systemsLenovo
In the box
Included items64 GB (2 × 32 GB) DDR5 5600 MHz PC5-44800 2Rx8 1.1 V 288-PIN ECC UDIMM KIT

Questions about this item

Will the 288-pin DDR5 UDIMM modules fit the Lenovo ThinkSystem ST250 V3 memory slots?

Yes, the 288-pin DDR5 UDIMM form factor matches the slots in the ThinkSystem ST250 V3 tower server.

What is the correct way to seat both 32GB sticks, and what step do people often miss?

Align the notch with the slot key, press firmly until the side clips click shut on both modules; the missed step is not pushing hard enough to engage both clips.

When should the ECC UDIMM kit be replaced or checked for errors?

Run a memory diagnostic if the server logs corrected ECC errors or shows unexplained crashes; replace the kit if uncorrectable errors appear during testing.

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