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Two green DDR5 RDIMM modules, black chips, no heat spreaders

NEMIX RAM

NEMIX RAM 128GB (2x64GB) DDR5 4800 CL40 2Rx4 1.1V ECC RDIMM Dell XE8640 memory upgrade

SKU CH-3WJJ-ZD92T

ECC registered DDR5 kit adds 128 GB in two 64 GB modules at 4800 MT/s CL40 for Dell PowerEdge XE8640 servers

  • Capacity128GB (2 x 64GB)
  • SpeedDDR5 4800 (PC5 38400)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V
  • 128 GB total capacity with two 64 GB modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • ECC registered RDIMM protects data integrity in servers
  • 2Rx4 dual-rank organisation for dense memory configs
  • 1 V operating voltage matches Dell XE8640 spec

Dell PowerEdge XE8640 memory upgrade

This kit provides 128 GB of DDR5 registered ECC memory in two 64 GB modules built for the Dell PowerEdge XE8640 rack server. It targets IT teams expanding capacity for virtualisation, databases or high-performance compute workloads.

Compatibility checklist before ordering

Verify the server model is exactly the Dell PowerEdge XE8640 and that the BIOS revision supports DDR5 4800 registered DIMMs. Confirm the memory population rules for your CPU configuration and ensure the required number of channels can be filled with 2Rx4 modules.

Thermals noise and power draw

Each module runs at 1.10 V without a heat spreader relying on the server’s directed airflow for cooling. Registered buffering and ECC add minimal latency while maintaining signal integrity under sustained load. Power consumption scales with the 4800 MT/s data rate and 2Rx4 organisation.

Points forts

  • 128 GB total capacity with two 64 GB modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • ECC registered RDIMM protects data integrity in servers
  • 2Rx4 dual-rank organisation for dense memory configs
  • 1 V operating voltage matches Dell XE8640 spec

Caractéristiques

BrandNEMIX RAM
SeriesDell Server/Workstation Compatible Series Memory
ModelDell DDR5 4800MHZ ECC RDIMM Registered Server Memory
Part NumberMR38400-924K2
Capacity128GB (2 x 64GB)
SpeedDDR5 4800 (PC5 38400)
ECCYes
Buffered/RegisteredRegistered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.10V
Compatible SystemDell
CAS LatencyCL40
Heat SpreaderNo
Type288-Pin DDR5 RDIMM
Rank2Rx4
FeaturesDDR5 ECC Registered RDIMM Server Motherboard Compatible
Package Content128GB (2X64GB) DDR5 4800MHZ PC5-38400 2Rx4 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions sur cet article

What is included in the package and do I need to buy anything else to install it?

The kit contains two 64 GB DDR5 4800 CL40 2Rx4 1.1 V ECC registered 288-pin RDIMMs for a total of 128 GB. No extra parts are required for installation in a compatible Dell PowerEdge XE8640.

How do I choose between the available versions or capacities for this server?

This part number MR38400-924K2 is a single 128 GB kit (2 × 64 GB). Select it when the system needs that exact capacity and registered ECC DDR5 4800 modules.

What does the 4800 MT/s rating mean once the memory is running in the XE8640?

The modules operate at DDR5 4800 (PC5-38400) with CL40 latency at 1.1 V, delivering the rated throughput and error-corrected registered performance validated for the Dell PowerEdge XE8640.

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