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Green rectangular DDR5 memory module with gold contacts and black chips no heat spreader

NEMIX RAM

NEMIX RAM 64GB DDR5 5600 ECC RDIMM CL46 2Rx4 1.1V 288-pin memory upgrade for Lenovo ThinkSystem SR680a V3

SKU CH-XD9Y-67NM7

64 GB DDR5 5600 ECC registered RDIMM with CL46 latency and 1.1 V operation for Lenovo ThinkSystem SR680a V3 servers

  • Total capacity64 GB
  • Rated speedDDR5 5600 (PC5 44800)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL46
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 64GB capacity expands server memory headroom for virtualisation workloads
  • DDR5 5600 speed delivers high bandwidth for data-intensive applications
  • ECC registered design corrects single-bit errors to protect data integrity
  • 1V operation reduces power draw in dense rack deployments
  • Validated for Lenovo ThinkSystem SR680a V3 ensures plug-in compatibility

Lenovo SR680a V3 DDR5 RDIMM

This 64GB DDR5 5600 module is built for the Lenovo ThinkSystem SR680a V3 rack server. It delivers ECC protection and registered buffering to maintain data integrity under heavy workloads. The single DIMM format allows flexible population of available memory slots.

IT teams expanding SR680a V3 capacity

Administrators adding memory to compatible Lenovo servers will appreciate the validated compatibility and 1.10V operation. Environments that require unbuffered UDIMMs, non-ECC modules or speeds other than 5600 MT/s should select a different part.

CL46 CAS latency at 5600 MT/s

The module operates at CL46 timing within the PC5-44800 standard, a key figure for matching existing memory configurations. This latency value determines whether the DIMM will run optimally alongside other installed modules in the server.

How it compares

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

Price $1,874.99
Pricier than about 67% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $29.30 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 lineLenovo Server/Workstation Compatible Series Memory
Model nameLenovo DDR5 5600 MHz ECC RDIMM Registered Server Memory
Part numberMR44800-924K1
Total capacity64 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 (1 × 64 GB) DDR5 5600 MHz PC5-44800 2Rx4 1.1 V CL46 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

Does the 2Rx4 DDR5 RDIMM require any periodic maintenance or component replacement during its service life?

No, the registered DDR5 module has no moving parts or user-serviceable components and is designed to operate for the life of the Lenovo ThinkSystem SR680a V3 without maintenance.

What is the first limit reached when the 64 GB module runs at 5600 MT/s continuously under full load?

The CL46 latency at 1.1 V sets the timing boundary; sustained throughput is capped by the DDR5-5600 specification before thermal or power limits are encountered.

How much heat and noise does the 1.1 V ECC RDIMM produce when the server runs all day?

The module operates at 1.1 V without a heat spreader, relying on the server's forced-air cooling; it adds no audible noise and minimal thermal load to the chassis airflow.

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