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Eight green DDR4 RDIMM sticks in a row

NEMIX RAM

NEMIX RAM 512GB (8x64GB) DDR4 3200 PC4-25600 4Rx4 1.2V 288-Pin ECC RDIMM Dell Precision 7865

SKU CH-9XX5-NC8YW

Eight 64 GB DDR4 3200 ECC RDIMM modules delivering 512 GB of registered server memory for Dell Precision 7865 workstations

  • Total capacity512 GB (8 × 64 GB)
  • Rated speedDDR4 3200 (PC4 25600)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL22
  • Rated voltage1.2 V
  • Buffer typeRegistered

Capacity 512GB (8 x 64GB)

Show 4 more

Rank 4Rx4

  • 512GB total capacity supports heavy workloads
  • DDR4 3200 speed delivers high data throughput
  • ECC registered design protects data integrity
  • 8 x 64GB modules fill Dell Precision 7865 slots
  • 2V operation reduces power consumption

512 GB DDR4 3200 ECC RDIMM kit for Dell Precision

This 512 GB kit contains eight 64 GB registered DDR4 modules rated at 3200 MT/s with CL22 latency. ECC and 4Rx4 organisation provide error correction and high density for demanding server workloads. The kit is validated for the Dell Precision Workstation 7865 platform.

Low-voltage registered design runs at 1.2 V

Registered buffering reduces electrical load on the memory controller, helping stability in fully populated configurations. Operating at 1.2 V keeps power draw modest for high-capacity deployments. Bare modules rely on chassis airflow for cooling in typical server environments.

288-pin RDIMM form factor requires compatible

Each module uses the standard 288-pin DDR4 RDIMM interface and 4Rx4 rank layout. Systems must support registered ECC memory and the 4Rx4 density to use all eight modules. Mixing with unbuffered or non-ECC DIMMs is not supported.

How it compares

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

Price $3,420.99
Pricier than about 90% of the 6,523 comparable items (median $188.99).
Total capacity 512 GB (8 × 64 GB)
Higher than about 91% of the 6,064 comparable items (median 32 GB).
Price per GB $6.68 per GB
Cheaper than about 56% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineDell Precision Workstation 7865 Series Server Memory
Model nameDell Precision Workstation Compatible DDR4 3200 MHz ECC RDIMM
Part numberMR25600-944K8
Total capacity512 GB (8 × 64 GB)
Product type288-Pin DDR4 RDIMM
Performance
Rated speedDDR4 3200 (PC4 25600)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL22
ECC supportYes
Buffer typeRegistered
Memory rank4Rx4
Heat spreaderNo
Power
Rated voltage1.2 V

Other versions of this model

5 more in the same range

Questions about this item

How do I install the eight 64 GB DDR4 RDIMMs in the Dell Precision 7865, and which step is most often missed?

Populate all eight slots following the 7865 memory-population guide, ensure each 288-pin module clicks fully into its latch, then verify in BIOS that all 512 GB are recognised at 3200 MT/s; the step most often missed is checking the BIOS memory map after first boot.

What maintenance or replacement will this 4Rx4 ECC registered kit need over time?

No scheduled maintenance is required; if a module fails the lifetime replacement covers it, otherwise the 1.20 V DDR4 RDIMMs run until a capacity upgrade is desired.

What limit appears first when the 512 GB kit runs sustained workloads at 3200 MT/s CL22?

The 4Rx4 organisation and registered buffer add latency, so memory-controller throughput saturates before thermal or voltage limits are reached.

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