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Eight green DDR5 RDIMM modules with gold contacts and black chips, no heat spreaders

NEMIX RAM

NEMIX RAM 256GB (8×32GB) DDR5 5600 CL46 1.1V ECC RDIMM memory upgrade for Lenovo ThinkSystem SR780a V3

SKU CH-RVRX-TVTDA

256GB kit of eight 32GB DDR5 5600 CL46 1.1V ECC registered DIMMs validated for Lenovo ThinkSystem SR780a V3 servers

  • Capacity256GB (8 x 32GB)
  • SpeedDDR5 5600 (PC5 44800)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V
  • 256GB total capacity across eight 32GB modules
  • DDR5 5600 speed with PC5-44800 bandwidth rating
  • ECC registered RDIMM ensures data integrity under load
  • 1V operating voltage reduces server power draw
  • Validated for Lenovo ThinkSystem SR780a V3 compatibility

Capacity and purpose

This kit supplies 256GB of DDR5 registered ECC memory in eight 32GB modules for the Lenovo ThinkSystem SR780a V3 rack server. It targets IT teams expanding capacity for virtualisation, databases or other memory-bound workloads on that specific platform.

Registered ECC impact

Registered buffering reduces electrical load on the server memory controller while ECC corrects single-bit errors, together protecting data integrity under sustained load. The 1Rx4 organisation and 1.1V operation follow the platform's DDR5 5600 specification without requiring configuration changes.

Build and connectors

Each module uses a standard 288-pin DDR5 RDIMM form factor without a heat spreader, relying on the server's directed airflow for cooling. The eight-module kit fills matching slots in supported configurations, and the CL46 latency is the rated timing for this speed grade.

Points forts

  • 256GB total capacity across eight 32GB modules
  • DDR5 5600 speed with PC5-44800 bandwidth rating
  • ECC registered RDIMM ensures data integrity under load
  • 1V operating voltage reduces server power draw
  • Validated for Lenovo ThinkSystem SR780a V3 compatibility

Caractéristiques

BrandNEMIX RAM
SeriesLenovo Server/Workstation Compatible Series Memory
ModelLenovo DDR5 5600MHZ ECC RDIMM Registered Server Memory
Part NumberMR44800-314K8
Capacity256GB (8 x 32GB)
SpeedDDR5 5600 (PC5 44800)
ECCYes
Buffered/RegisteredRegistered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.10V
Compatible SystemLenovo
CAS LatencyCL46
Heat SpreaderNo
Type288-Pin DDR5 RDIMM
Rank1Rx4
FeaturesDDR5 ECC Registered RDIMM Server Motherboard Compatible
Package Content256GB (8X32GB) DDR5 5600MHZ PC5-44800 1Rx4 1.1V CL46 288-PIN ECC RDIMM Registered Server Memory KIT

Questions sur cet article

Will the 1Rx4 288-pin DDR5 modules need any firmware updates or reseating after long-term use in the SR780a V3?

The registered ECC RDIMMs run at 1.10 V with CL46 latency; no firmware updates are required on the modules themselves, and reseating is only needed if the server is moved or the chassis is opened.

What limit appears first when the 256 GB kit runs sustained workloads at 5600 MT/s?

The 1Rx4 organisation and CL46 timing set the bandwidth ceiling at PC5-44800; sustained throughput will hit that ceiling before thermal or voltage limits are reached.

How much heat and fan noise should I expect from the eight 32 GB sticks running continuously at 5600 MT/s?

Each module operates at 1.1 V without a heat spreader, so power draw per DIMM is low; the server’s existing airflow handles the thermal load without extra fan speed.

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