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Two green DDR5 RDIMM modules, bare circuit boards with black chips

NEMIX RAM

NEMIX RAM 128GB (2x64GB) DDR5 5600 CL46 ECC RDIMM Dell PowerEdge XE9780L/XE9785L memory upgrade

SKU CH-KJBV-2FDCT

128 GB DDR5 5600 ECC registered kit, two 64 GB modules at CL46 for Dell PowerEdge XE9780L and XE9785L rack servers

  • Capacity128GB (2 x 64GB)
  • SpeedDDR5 5600 (PC5 44800)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V
  • 128 GB total capacity from two 64 GB modules
  • DDR5 5600 speed with CL46 latency for server workloads
  • ECC registered design protects data integrity
  • 10 V operation reduces power draw
  • Built for Dell PowerEdge XE9780L and XE9785L systems

Dell PowerEdge XE9780L and XE9785L memory kit

This 128GB kit contains two 64GB DDR5 ECC RDIMM modules built for Dell PowerEdge XE9780L and XE9785L rack servers. It targets administrators who need registered, error-correcting memory to expand capacity in these specific platforms. Buyers who want non-ECC memory or modules for consumer motherboards cannot use this kit.

Thermals, noise and power draw in normal use

Each module runs at 1.1V without a heat spreader, relying on server chassis airflow for cooling. Registered buffering and ECC add negligible latency overhead while the low voltage helps contain power draw in densely populated DIMM slots. The modules produce no audible noise as they have no moving parts.

Single specification that decides fit

The kit is validated for Dell PowerEdge XE9780L and XE9785L systems only. Compatibility with any other server, workstation or desktop platform is not confirmed by the supplier data.

Highlights

  • 128 GB total capacity from two 64 GB modules
  • DDR5 5600 speed with CL46 latency for server workloads
  • ECC registered design protects data integrity
  • 10 V operation reduces power draw
  • Built for Dell PowerEdge XE9780L and XE9785L systems

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 SystemDell
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

How do I install the 288-pin DDR5 RDIMM modules in a Dell PowerEdge XE9780L, and which step is often missed?

Power down the server, open the chassis, align each module's notch with the slot key, press firmly until the ejector clips lock, then verify in BIOS that all 128GB are detected at 5600 MT/s; the step often missed is seating both modules fully so the clips engage on both sides.

What maintenance or replacement will the ECC RDIMM kit need over its service life?

The modules have no moving parts and no heat spreader, so routine maintenance is limited to keeping server airflow clean; replacement is only required if a correctable ECC error count rises or a module fails, at which point the individual 64GB stick can be swapped.

What limit appears first when the 4Rx4 registered memory runs sustained workloads at 1.1V?

The primary limit is the CL46 latency combined with the 4Rx4 rank density, which caps sustained throughput at the rated 5600 MT/s; thermal throttling is unlikely at 1.1V, so latency and rank interleaving become the bottleneck before voltage or temperature.

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