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Two green DDR5 RDIMM modules with gold contacts and black chips, no heat spreader

NEMIX RAM

NEMIX RAM 128GB (2x64GB) DDR5 5600 ECC RDIMM CL46 4Rx4 1.1V Lenovo SR780a V3 memory upgrade

SKU CH-04JC-8K92V

128 GB DDR5 ECC RDIMM kit with two 64 GB modules at 5600 MT/s CL46 for Lenovo SR780a V3 servers

  • Capacity128GB (2 x 64GB)
  • SpeedDDR5 5600 (PC5 44800)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V
  • ECC protection prevents data corruption with registered DDR5 modules
  • 128GB kit (2 x 64GB) expands Lenovo SR780a V3 memory capacity
  • DDR5 5600 speed delivers high bandwidth for server workloads
  • 1V operation reduces power draw per module
  • 288-pin RDIMM form factor fits compatible Lenovo rack server slots

128GB DDR5 ECC RDIMM Kit for Lenovo SR780a V3

This 128GB kit contains two 64GB DDR5 5600 registered DIMMs with ECC and a CAS latency of 46. It is built for the Lenovo ThinkSystem SR780a V3 rack server and runs at 1.1V. The 4Rx4 organisation suits high-density memory configurations in enterprise environments.

Verify DDR5 RDIMM Slots and 5600 Support

Confirm that your SR780a V3 has free 288-pin DDR5 RDIMM slots and that the platform firmware enables 5600 MT/s operation with 4Rx4 modules. Registered ECC memory must be paired with a compatible server chipset; mixing with unbuffered or non-ECC DIMMs will prevent boot.

Fits SR780a V3 Memory Channels

The two modules populate a matched pair of channels, leaving remaining slots open for future expansion up to the platform limit. Registered buffering reduces electrical load on the memory controller, freeing headroom for additional ranks. No heat spreaders are fitted, so ensure chassis airflow meets the server specification.

Highlights

  • ECC protection prevents data corruption with registered DDR5 modules
  • 128GB kit (2 x 64GB) expands Lenovo SR780a V3 memory capacity
  • DDR5 5600 speed delivers high bandwidth for server workloads
  • 1V operation reduces power draw per module
  • 288-pin RDIMM form factor fits compatible Lenovo rack server slots

Specifications

BrandNEMIX RAM
SeriesNEMIX RAM Original Series Server Memory
ModelDDR5 ECC RDIMM Registered Server Memory
Part NumberMR44800-944K2
Capacity128GB (2 x 64GB)
SpeedDDR5 5600 (PC5 44800)
ECCYes
Buffered/RegisteredRegistered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.10V
Compatible SystemLenovo
CAS LatencyCL46
Heat SpreaderNo
Type288-Pin DDR5 RDIMM
Rank4Rx4
FeaturesDDR5 ECC RDIMM Motherboard Compatible
Package Content128GB (2 x 64GB) DDR5 5600MHz PC5-44800 4Rx4 1.1V 288-PIN ECC RDIMM KIT

Questions about this item

Does the 128GB kit include two 64GB DDR5 5600 ECC RDIMM modules or do I need to buy them separately?

The kit ships with two 64GB DDR5 5600 ECC RDIMM modules totalling 128GB, so no extra modules are required.

Should I choose the 4Rx4 CL46 version or a different rank and latency for the Lenovo SR780a V3?

This kit is built as 4Rx4 CL46 at 1.1V, matching the server’s qualified configuration for registered ECC memory.

What does the 5600MHz PC5-44800 rating mean when the modules are installed in the SR780a V3?

The modules will run at DDR5 5600 transfer rate with CL46 latency, delivering the rated PC5-44800 bandwidth in the supported server slots.

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