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Green circuit board with black memory chips and gold edge connectors

NEMIX RAM

NEMIX RAM 64GB DDR5 5600 CL46 4Rx4 ECC RDIMM memory upgrade

SKU CH-1WGC-NT7F5

64GB DDR5 5600MHz ECC RDIMM module with CL46 latency and 1.1V operation for Lenovo ThinkSystem SR780a V3 servers

  • Total capacity64 GB
  • Rated speedDDR5 5600 (PC5 44800)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL46
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • ECC protection prevents data corruption with registered DDR5 architecture
  • 64GB capacity expands server memory for demanding workloads
  • 5600MHz speed delivers high bandwidth for intensive applications
  • 1V operation reduces power consumption in dense configurations
  • Validated compatibility with Lenovo ThinkSystem SR780a V3 rack server

Server memory for Lenovo ThinkSystem SR780a V3

This 64GB DDR5 module is built as a single registered ECC RDIMM for the Lenovo ThinkSystem SR780a V3 rack server. It targets administrators who need to expand capacity in that specific platform with a factory-tested upgrade.

Sustained operation with registered ECC

The registered buffer reduces electrical load on the memory controller during continuous workloads, while on-die ECC corrects single-bit errors without halting the system. Rated at 5600MHz with CL46 latency and 1.10V operation, the module maintains stability across extended server duty cycles.

Verify slot population and rank limits

Confirm the server has a free 288-pin DDR5 RDIMM slot and that the memory controller supports 4Rx4 organisation at the target speed. Check the system documentation for maximum rank-per-channel rules and approved part-number lists before ordering.

How it compares

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

Price $1,903.99
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 $29.75 per GB
Pricier than about 85% 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 numberMR44800-944K1
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 rank4Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsLenovo
In the box
Included items64 GB (1 × 64 GB) DDR5 5600 MHz PC5-44800 4Rx4 1.1 V 288-PIN ECC RDIMM

Questions about this item

How much power does the 1.1 V 64 GB DDR5 5600 RDIMM draw when the server runs continuously?

The module operates at 1.10 V DDR5 standard voltage; actual sustained power draw depends on the Lenovo ThinkSystem SR780a V3 platform and workload.

What must the server already provide for this 288-pin ECC RDIMM to function?

A Lenovo ThinkSystem SR780a V3 with DDR5 RDIMM slots that support 4Rx4 registered ECC modules at 5600 MT/s.

Can this 4Rx4 CL46 DDR5 module share channels with lower-rank DDR5 RDIMMs already installed?

Mixing ranks is governed by the SR780a V3 memory population rules; consult the system manual for supported 4Rx4 configurations.

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