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Four green DDR5 RDIMM modules in anti-static tray

NEMIX RAM

NEMIX RAM 512GB (4x128GB) DDR5 4800 CL40 ECC RDIMM Cisco UCS X410c M7 memory upgrade

SKU CH-1ZX3-3FXKH

A 512 GB DDR5 ECC registered server memory kit of four 128 GB modules running at 4800 MT/s CL40 for the Cisco UCS X410c M7 compute node

  • Capacity512GB (4 x 128GB)
  • SpeedDDR5 4800 (PC5 38400)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V
  • 512 GB total capacity from four 128 GB modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • ECC registered RDIMM design protects data integrity
  • Low 1.1 V operating voltage reduces power draw
  • Validated for Cisco UCS X410c M7 compute nodes

Cisco UCS X410c M7 memory upgrade

This 512GB kit supplies four 128GB DDR5 4800 CL40 ECC RDIMMs built for the Cisco UCS X410c M7 compute node. Registered modules with 4Rx4 organisation deliver the density and error correction required by virtualisation hosts and database tiers. IT teams standardising on Cisco qualified memory use this kit to reach the platform's maximum supported capacity.

Thermals noise and power draw

Each module operates at 1.1V without a heat spreader, relying on the chassis airflow designed for the X410c M7. Registered buffering reduces electrical load on the memory controller, keeping power draw predictable under sustained workloads. The bare PCB design allows dense DIMM placement while maintaining thermal margins inside the validated server enclosure.

What this replaces and when to upgrade

The kit replaces lower-capacity DDR5 RDIMMs or factory-populated modules when applications demand more memory bandwidth and capacity per socket. Upgrading is worthwhile when virtual machine density, in-memory analytics or container orchestration exhaust the existing memory ceiling and the compute node's memory slots are free for all four modules.

Highlights

  • 512 GB total capacity from four 128 GB modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • ECC registered RDIMM design protects data integrity
  • Low 1.1 V operating voltage reduces power draw
  • Validated for Cisco UCS X410c M7 compute nodes

Specifications

BrandNEMIX RAM
SeriesCisco Server Compatible Series Memory
ModelCisco DDR5 4800MHZ ECC RDIMM Registered Server Memory
Part NumberMR38400-744K4
Capacity512GB (4 x 128GB)
SpeedDDR5 4800 (PC5 38400)
ECCYes
Buffered/RegisteredRegistered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.10V
Compatible SystemCisco
CAS LatencyCL40
Heat SpreaderNo
Type288-Pin DDR5 RDIMM
Rank4Rx4
FeaturesDDR5 ECC Registered RDIMM Server Motherboard Compatible
Package Content512GB (4X128GB) DDR5 4800MHZ PC5-38400 4Rx4 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

How do I install the 288-pin DDR5 RDIMM modules in the Cisco UCS X410c M7, and what step is often missed?

Power down the node, open the chassis, align each 128GB module with the keyed 288-pin slot, press firmly until both locking tabs click, then verify all four modules appear at 4800 MT/s in the BIOS — the step most often missed is confirming the registered ECC timings (CL40, 1.10 V) are recognised before closing the cover.

What maintenance or replacement will this 512GB kit need over its service life?

The modules have no heat spreaders and no moving parts, so routine maintenance is limited to keeping server airflow paths clean; replacement is only required if a module fails, which is covered by the manufacturer's lifetime replacement warranty.

What limit appears first when the kit runs sustained workloads at 4800 MT/s?

The primary limit is the CL40 latency at 1.10 V — under continuous heavy load the registered 4Rx4 organisation and CAS-40 timing bound throughput before thermal or power constraints become significant.

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