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Single green DDR5 RDIMM module with black chips, no heat spreader, 288 gold pins

NEMIX RAM

NEMIX RAM 128GB DDR5 4800 CL40 4Rx4 ECC RDIMM Lenovo 4X77A77034 memory upgrade

SKU CH-KAJA-WRM3E

A 128GB DDR5 4800 CL40 4Rx4 ECC registered DIMM for Lenovo ThinkSystem servers

  • Capacity128GB
  • SpeedDDR5 4800 (PC5 38400)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V
  • 128GB capacity enables large-scale workloads on Lenovo ThinkSystem servers
  • DDR5 4800 speed delivers high data throughput for demanding applications
  • ECC registered design protects data integrity in mission-critical environments
  • 1V operation reduces power consumption per module
  • 288-pin RDIMM form factor fits compatible Lenovo 4X77A77034 slots

128GB DDR5 ECC RDIMM for Lenovo servers

This 128GB DDR5 4800 CL40 registered DIMM targets administrators expanding memory in Lenovo ThinkSystem servers that require ECC RDIMM modules. The 4Rx4 organisation and 1.1V operation match the platform specifications for Intel processor based systems. It is not suited for desktop boards or laptops that accept only unbuffered memory.

Sustained load behaviour

Registered buffering and on-die ECC keep data integrity intact during continuous enterprise workloads such as virtualisation, database serving and large-scale analytics. The CL40 latency at 4800 MT/s provides steady throughput without the timing variability seen in consumer modules under prolonged stress. No heat spreader is fitted, so adequate chassis airflow is required to maintain rated performance.

Installation notes

The single 288-pin module seats in any compatible DDR5 RDIMM slot; consult the server service manual for population rules and maximum supported capacity per channel. Common issues arise when mixing ranks or voltages across channels, so populate identical modules together. The system BIOS must recognise the 4Rx4 configuration at 1.1V for correct initialisation.

Puntos fuertes

  • 128GB capacity enables large-scale workloads on Lenovo ThinkSystem servers
  • DDR5 4800 speed delivers high data throughput for demanding applications
  • ECC registered design protects data integrity in mission-critical environments
  • 1V operation reduces power consumption per module
  • 288-pin RDIMM form factor fits compatible Lenovo 4X77A77034 slots

Especificaciones

BrandNEMIX RAM
SeriesLenovo Server/Workstation Compatible Series Memory
ModelLenovo DDR5 4800MHZ ECC RDIMM Registered Server Memory
Part NumberMR38400-744K1
Capacity128GB
SpeedDDR5 4800 (PC5 38400)
ECCYes
Buffered/RegisteredRegistered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.10V
Compatible SystemLenovo
CAS LatencyCL40
Heat SpreaderNo
Type288-Pin DDR5 RDIMM
Rank4Rx4
FeaturesDDR5 ECC Registered RDIMM Server Motherboard Compatible
Package Content128GB (1X128GB) DDR5 4800MHZ PC5-38400 4Rx4 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory

Preguntas sobre este artículo

How much power does the 128GB DDR5 4800 CL40 module draw at its rated 1.1V?

The module operates at 1.1V, which is the standard DDR5 voltage, keeping power draw low for a 128GB registered DIMM.

What motherboard slot and CPU memory controller are required for this 288-pin DDR5 RDIMM?

You need a server motherboard with DDR5 RDIMM slots and a CPU that supports registered ECC memory at 4800MT/s.

Will this 4Rx4 DDR5 4800 RDIMM work in a Lenovo ThinkSystem that currently uses 2Rx8 DDR5 modules?

Yes, the 4Rx4 organisation is compatible with Lenovo ThinkSystem platforms qualified for the 4X77A77034 part number.

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