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Green rectangular circuit board with gold edge connectors and black memory chips, no heat spreader

NEMIX RAM

NEMIX RAM 128GB 1Rx128GB DDR5 4800 PC5-38400 4Rx4 1.1V 288-Pin ECC RDIMM Dell PowerEdge R760xa

SKU CH-3SPR-EAV4B

128GB DDR5-4800 ECC registered RDIMM built for Dell PowerEdge R760xa servers

  • Total capacity128 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 128GB capacity supports large workloads
  • DDR5 4800 speed delivers high bandwidth
  • ECC registered design ensures data integrity
  • 10V operation reduces power consumption
  • Validated for Dell PowerEdge R760xa compatibility

Dell PowerEdge R760xa Memory Upgrade

This NEMIX RAM module adds 128GB of DDR5 ECC registered memory to compatible Dell PowerEdge R760xa rack servers. The single 288-pin RDIMM operates at 4800MHz with CL40 latency and 1.10V voltage. It is built for enterprise environments that require error correction and registered buffering for system stability.

Replacing Lower Capacity DDR5 RDIMMs

The module replaces smaller DDR5 RDIMMs when workloads demand higher memory density per slot. The upgrade is worthwhile when virtualization, database or analytics tasks exceed the capacity of existing modules and the platform supports 4Rx4 registered DIMMs. It maintains the same 4800MHz speed and 1.10V power envelope as standard DDR5 server memory.

Sustained Load Behaviour With ECC Registered Design

Under continuous operation the registered buffer reduces electrical load on the memory controller while ECC corrects single-bit errors in real time. The 4Rx4 organisation distributes accesses across four ranks to sustain throughput during long-running compute jobs. Samsung, Micron or Hynix DRAM chips are stress tested to maintain stability without a heat spreader in cooled server chassis.

How it compares

Measured against everything we stock in ECC Server RAM, at today’s prices. Recalculated every night.

Price $4,186.99
Pricier than about 90% of the 6,523 comparable items (median $188.99).
Total capacity 128 GB
Higher than about 90% of the 6,064 comparable items (median 32 GB).
Price per GB $32.71 per GB
Pricier than about 90% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineDell Series Server Memory
Model nameDell Compatible DDR5 ECC Registered RDIMM
Part numberMR38400-744K1
Total capacity128 GB
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL40
ECC supportYes
Buffer typeRegistered
Memory rank4Rx4
Heat spreaderNo
Power
Rated voltage1.1 V

Questions about this item

Does the 288-pin DDR5 RDIMM fit the Dell PowerEdge R760xa memory slots?

Yes, the 288-pin DDR5 RDIMM form factor matches the R760xa DIMM sockets. The module is registered with ECC and uses the 4Rx4 organisation specified for this platform.

What is the correct seating procedure for this registered ECC module?

Align the notch on the module with the slot key, press straight down until both retaining clips click shut. The step often missed is verifying the clips are fully locked on both sides after insertion.

When should the 128GB DDR5 4800 module be replaced?

Replace the module if memory diagnostics report uncorrectable ECC errors or if the server logs repeated corrected errors on the same DIMM. No scheduled replacement interval applies under normal operation.

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