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Four green DDR5 RDIMM modules, bare black chips, gold contacts, no heat spreaders

NEMIX RAM

NEMIX RAM 512GB (4x128GB) DDR5 4800 PC5-38400 CL40 4Rx4 ECC RDIMM Dell Precision 5860

SKU CH-F8W1-Y159H

A 512GB DDR5 registered ECC memory kit of four 128GB modules running at 4800 MT/s with CL40 latency for Dell Precision 5860 workstations

  • Total capacity512 GB (4 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • Massive 512 GB capacity via four 128 GB modules
  • DDR5 4800 speed delivers high bandwidth for demanding workloads
  • ECC registered design protects data integrity in critical applications
  • 4Rx4 organisation maximises density per DIMM slot
  • Low 1.10 V operation reduces power draw in dense server configurations

Capacity & fit

This kit provides 512GB of DDR5 memory in four 128GB registered DIMMs built for the Dell Precision 5860 tower workstation. It targets professionals who need maximum ECC capacity for large datasets, virtualization or scientific workloads on that specific platform.

Upgrade path

The modules replace lower-capacity DDR5 RDIMMs or fill empty slots to reach the workstation’s supported memory ceiling. The jump is worthwhile when your workload exceeds the capacity of smaller kits and the application can use the additional address space.

DDR5 4800 limits

The PC5-38400 standard runs at 4800 MT/s with CL40 latency at 1.10V, which sets the bandwidth and timing floor for this generation. Systems that only support lower DDR5 speeds will downclock the kit, and platforms requiring faster JEDEC profiles cannot be satisfied by this speed grade.

How it compares

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

Price $15,830.99
Pricier than about 92% of the 6,523 comparable items (median $188.99).
Total capacity 512 GB (4 × 128 GB)
Higher than about 91% of the 6,064 comparable items (median 32 GB).
Price per GB $30.92 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 numberMR38400-744K4
Total capacity512 GB (4 × 128 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 form factor fit the Dell Precision 5860 tower workstation memory slots?

Yes, the 288-pin DDR5 RDIMM modules are the correct form factor for the Dell Precision 5860 tower workstation memory slots.

What is the correct order to populate the four 128GB modules across the eight memory channels?

Install the four 128GB modules in the four slots designated for the first processor, following the channel sequence shown in the Dell Precision 5860 service manual.

Will the 1.1V operating voltage require any BIOS adjustment on the Precision 5860?

The 1.1V DDR5 modules operate at the standard JEDEC voltage, so the Precision 5860 BIOS will configure them automatically without manual changes.

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