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Four green DDR5 RDIMM modules, no heat spreaders, 288 pins, 512GB kit

NEMIX RAM

NEMIX RAM 512GB (4 x 128GB) DDR5 4800 CL40 ECC RDIMM Dell PowerEdge XE8640 memory upgrade

SKU CH-SJY9-9ZRXQ

A 512 GB registered DDR5 kit with ECC, CL40 latency and 1.1 V operation for Dell PowerEdge XE8640 servers

  • Capacity512GB (4 x 128GB)
  • SpeedDDR5 4800 (PC5 38400)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V
  • Massive 512 GB capacity from four 128 GB modules
  • DDR5 4800 speed delivers high bandwidth for demanding workloads
  • ECC registered design protects data integrity in critical applications
  • Low 1.1 V operation reduces power draw and heat
  • Validated for Dell PowerEdge XE8640 server compatibility

512GB DDR5 ECC RDIMM kit for Dell PowerEdge XE8640

This 512GB kit contains four 128GB DDR5 4800 registered DIMMs built with ECC and a 4Rx4 organisation. It is designed for administrators upgrading a Dell PowerEdge XE8640 rack server that requires registered error-correcting memory.

Registered 288-pin modules at 1.1V without heat

Each module uses the standard 288-pin DDR5 RDIMM form factor and operates at 1.10V. The absence of heat spreaders keeps the profile low for dense server chassis, while the registered buffer reduces electrical load on the memory controller.

CL40 latency at DDR5 4800 (PC5-38400)

The kit runs at 4800 MT/s with a CAS latency of 40, matching the PC5-38400 specification. This timing is the decisive figure for compatibility with the XE8640 memory subsystem.

Puntos fuertes

  • Massive 512 GB capacity from four 128 GB modules
  • DDR5 4800 speed delivers high bandwidth for demanding workloads
  • ECC registered design protects data integrity in critical applications
  • Low 1.1 V operation reduces power draw and heat
  • Validated for Dell PowerEdge XE8640 server compatibility

Especificaciones

BrandNEMIX RAM
SeriesDell Server/Workstation Compatible Series Memory
ModelDell 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 SystemDell
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

Preguntas sobre este artículo

Does the DDR5 4800 PC5-38400 standard cap the maximum data rate at 4800 MT/s?

Yes, the modules run at DDR5 4800 (PC5-38400), so the peak transfer rate is limited to that speed class.

What physical slot and module height does the 288-pin RDIMM kit require?

Each 128 GB module uses a standard 288-pin DDR5 RDIMM form factor with no heat spreader, fitting regular server DIMM sockets.

Which population sequence avoids the common mis-seating error on the PowerEdge XE8640?

Install the four 4Rx4 modules in the identical slots per channel shown in the XE8640 service manual, pressing straight down until both ejectors click.

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