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Sixteen green DDR5 RDIMM sticks in a tray

NEMIX RAM

NEMIX RAM 512GB (16x32GB) DDR5 4800 CL40 2Rx8 ECC RDIMM memory upgrade for Dell PowerEdge XE9640

SKU CH-HYMX-1362G

Adds 512 GB of DDR5 ECC registered memory in sixteen 32 GB modules running at 4800 MT/s CL40 for Dell PowerEdge XE9640 servers

  • Capacity512GB (16 x 32GB)
  • SpeedDDR5 4800 (PC5 38400)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V
  • 512 GB capacity from 16 x 32 GB modules
  • DDR5 4800 speed with CL40 latency
  • ECC registered RDIMM for data integrity
  • 1 V operation reduces power draw
  • Designed for Dell PowerEdge XE9640 compatibility

Dell PowerEdge XE9640 memory kit

This 512GB kit delivers 16 registered DDR5 modules at 4800MT/s with ECC and CL40 latency for the Dell PowerEdge XE9640. It targets IT teams scaling memory capacity in validated server configurations.

Thermals and power draw

Each 32GB module operates at 1.10V without a heat spreader, relying on chassis airflow for cooling. Registered buffering reduces electrical load on the memory controller during sustained workloads.

Upgrade path and fit

The kit replaces smaller RDIMM sets to reach the platform's supported density ceiling. The jump is worth it when virtualisation density or in-memory analytics demand the full 512GB across all 16 slots.

Points forts

  • 512 GB capacity from 16 x 32 GB modules
  • DDR5 4800 speed with CL40 latency
  • ECC registered RDIMM for data integrity
  • 1 V operation reduces power draw
  • Designed for Dell PowerEdge XE9640 compatibility

Caractéristiques

BrandNEMIX RAM
SeriesDell Server/Workstation Compatible Series Memory
ModelDell DDR5 4800MHZ ECC RDIMM Registered Server Memory
Part NumberMR38400-328K16
Capacity512GB (16 x 32GB)
SpeedDDR5 4800 (PC5 38400)
ECCYes
Buffered/RegisteredRegistered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.10V
Compatible SystemDell
CAS LatencyCL40
Heat SpreaderNo
Type288-Pin DDR5 RDIMM
Rank2Rx8
FeaturesDDR5 ECC Registered RDIMM Server Motherboard Compatible
Package Content512GB (16X32GB) DDR5 4800MHZ PC5-38400 2Rx8 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory

Questions sur cet article

How do I install these 16 DDR5 288-pin RDIMM modules in the Dell PowerEdge XE9640, and what step is commonly missed?

Power down the server, open the chassis, align each module's notch with the slot key, press firmly until both latches click, then verify all 16 modules are detected in the BIOS memory configuration screen.

What maintenance or replacement will this 512GB DDR5 ECC registered memory kit need over time?

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

What limit appears first when this CL40 1.10V DDR5 4800 memory runs sustained workloads on the XE9640?

The CAS latency of CL40 at 4800 MT/s sets the primary timing ceiling; sustained heavy loads will hit latency-bound throughput before voltage or thermal limits become a factor.

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