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Eight green DDR5 RDIMM sticks in a row

NEMIX RAM

NEMIX RAM 256GB (8×32GB) DDR5 5600 CL46 ECC RDIMM memory upgrade

SKU CH-RTR6-P0WWD

Eight 32 GB DDR5 5600 ECC registered DIMMs totalling 256 GB for Lenovo ThinkSystem SR680a V3 servers

  • Total capacity256 GB (8 × 32 GB)
  • Rated speedDDR5 5600 (PC5 44800)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL46
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 256GB total capacity across eight 32GB modules
  • DDR5 5600 speed rated at PC5-44800 bandwidth
  • ECC registered design detects and corrects data errors
  • 10V operating voltage reduces power draw per module
  • Validated for Lenovo ThinkSystem SR680a V3 rack servers

Lenovo SR680a V3 upgrade kit

This 256GB kit contains eight 32GB DDR5 modules built for the Lenovo ThinkSystem SR680a V3 rack server. ECC registered DIMMs detect and correct single-bit errors to protect data integrity in mission-critical workloads. The kit targets administrators who need maximum capacity per channel without mixing module densities.

Sustained throughput at 5600 MT/s

Registered buffering reduces electrical load on the memory controller so all eight ranks can run continuously at the rated 5600 MT/s without down-clocking. CL46 latency and 1.1V operation keep power draw predictable during long compute jobs. Error correction runs in hardware so throughput does not drop when corrections occur.

288-pin RDIMM form factor

Each module uses the standard 288-pin DDR5 RDIMM connector and fits the SR680a V3 memory slots without adapters. No heat spreader is fitted, allowing tighter DIMM spacing in dense server chassis. Major OEM DRAM from Samsung Micron or Hynix ensures consistent signal quality across all eight sticks.

How it compares

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

Price $7,218.99
Pricier than about 83% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (8 × 32 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $28.20 per GB
Pricier than about 79% 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 numberMR44800-314K8
Total capacity256 GB (8 × 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 rank1Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsLenovo
In the box
Included items256 GB (8 × 32 GB) DDR5 5600 MHz PC5-44800 1Rx4 1.1 V CL46 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

How much heat does the 1.1 V DDR5 kit add when all eight modules run continuously in a Lenovo ThinkSystem SR680a V3?

Each 32 GB RDIMM operates at 1.1 V, keeping power draw low so the server’s existing airflow handles the thermal load without extra cooling.

What existing hardware is required to install this 256 GB registered ECC kit?

A Lenovo ThinkSystem SR680a V3 with free 288-pin DDR5 RDIMM slots and a BIOS that supports 5600 MT/s registered memory.

Will the CL46 5600 MT/s modules work alongside older DDR5 DIMMs already in the SR680a V3?

All eight sticks are 1Rx4 registered ECC at 5600 MT/s; mixing ranks or speeds can prevent boot, so populate every channel with this matched kit for stable operation.

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