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Sixteen green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM 256GB (16x16GB) DDR5 4800 CL40 ECC RDIMM Dell PowerEdge XE9640 memory upgrade

SKU CH-HKKY-K4TJF

256 GB DDR5 server memory kit with sixteen 16 GB registered ECC modules at 4800 MHz CL40 for Dell PowerEdge XE9640

  • Capacity256GB (16 x 16GB)
  • SpeedDDR5 4800 (PC5 38400)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V
  • 256GB total capacity with sixteen 16GB modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • ECC registered RDIMM for data integrity in servers
  • CL40 CAS latency at 1.10V operating voltage
  • 288-pin 1Rx8 layout built for Dell PowerEdge XE9640

Dell PowerEdge XE9640 DDR5 upgrade

This 256GB kit adds 16 registered DDR5 modules to a Dell PowerEdge XE9640 server. It targets IT teams who need maximum memory capacity for virtualization or database workloads. The ECC RDIMM design protects data integrity in mission-critical environments. Buyers needing non-ECC or unbuffered memory should look elsewhere.

ECC registration and 1Rx8 layout

Error-correcting code detects and corrects single-bit errors while registered buffering reduces electrical load on the memory controller. The single-rank 1Rx8 organisation allows dense population across all 16 slots. Modules run at 1.1V with CL40 latency at 4800 MT/s. No heat spreaders are included, so chassis airflow must handle thermal load.

288-pin RDIMM installation

Each module keys into a standard 288-pin DDR5 slot and locks with the retention clips. Populating all 16 channels requires following the server manual's population order to enable multi-channel operation. Mixing ranks or speeds can prevent the system from posting. Verify firmware revision before installing the full kit.

Points forts

  • 256GB total capacity with sixteen 16GB modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • ECC registered RDIMM for data integrity in servers
  • CL40 CAS latency at 1.10V operating voltage
  • 288-pin 1Rx8 layout built for Dell PowerEdge XE9640

Caractéristiques

BrandNEMIX RAM
SeriesDell Server/Workstation Compatible Series Memory
ModelDell DDR5 4800MHZ ECC RDIMM Registered Server Memory
Part NumberMR38400-618K16
Capacity256GB (16 x 16GB)
SpeedDDR5 4800 (PC5 38400)
ECCYes
Buffered/RegisteredRegistered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.10V
Compatible SystemDell
CAS LatencyCL40
Heat SpreaderNo
Type288-Pin DDR5 RDIMM
Rank1Rx8
FeaturesDDR5 ECC Registered RDIMM Server Motherboard Compatible
Package Content256GB (16X16GB) DDR5 4800MHZ PC5-38400 1Rx8 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory

Questions sur cet article

Will the 16 registered DIMMs in this 256 GB kit need any periodic replacement or service?

The modules have no moving parts and no heat spreaders, so no scheduled maintenance is required; they remain in service until a capacity upgrade is needed.

What is the first limit reached when the 4800 MT/s CL40 1Rx8 RDIMMs run continuously at full load?

Sustained throughput is capped by the DDR5 4800 PC5-38400 interface and CL40 latency; the memory controller reaches its bandwidth ceiling before the modules do.

How much heat and power do the 1.1 V 288-pin ECC RDIMMs produce during all-day operation?

Each 16 GB rank draws only 1.1 V at standard DDR5 voltage, so total power stays low and passive airflow in a Dell PowerEdge XE9640 chassis is sufficient for cooling.

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