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Four green DDR4 RDIMM modules, bare circuit boards with gold contacts, no heat spreaders

NEMIX RAM

NEMIX RAM 64GB (4x16GB) DDR4 3200 ECC RDIMM server RAM

SKU CH-651H-K9ZPQ

64 GB kit of four 16 GB DDR4 3200 ECC registered DIMMs at CL22 and 1.2 V for Dell Precision 7865 workstations

  • Total capacity64 GB (4 × 16 GB)
  • Rated speedDDR4 3200 (PC4 25600)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL22
  • Rated voltage1.2 V
  • Buffer typeRegistered

Capacity 64GB (4 x 16GB)

Show 4 more

Rank 2Rx8

  • 64 GB total capacity from four 16 GB modules
  • DDR4 3200 speed rated at PC4-25600 for high throughput
  • ECC registered design detects and corrects data errors
  • 20 V operation with CL22 latency for efficient performance
  • Compatible with Dell Precision Workstation 7865 systems

64 GB DDR4 3200 ECC RDIMM kit

This NEMIX RAM kit delivers 64 GB of DDR4 3200 registered ECC memory in four 16 GB modules. It runs at 1.20 V with CL22 latency and uses 2Rx8 organisation on 288-pin RDIMM form factor. The kit is validated for Dell Precision Workstation 7865 compatibility. Major OEM chips from Samsung, Micron or Hynix provide enterprise-grade reliability.

Who this suits and who it does not

IT professionals upgrading Dell Precision 7865 workstations for virtualization, rendering or database workloads will benefit from registered ECC stability. Buyers who need unbuffered UDIMM memory for consumer motherboards cannot use these registered modules. Systems limited to lower speeds or non-ECC configurations should look at different memory types.

Registered ECC RDIMM form factor

The defining specification is the registered ECC RDIMM design, which requires a motherboard that supports registered memory and error correction. Consumer platforms and many entry-level workstations do not accept registered modules, so verify motherboard compatibility before purchase. This single attribute determines whether the kit will function in the target system.

How it compares

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

Price $492.99
Pricier than about 70% of the 6,523 comparable items (median $188.99).
Total capacity 64 GB (4 × 16 GB)
Higher than about 70% of the 6,064 comparable items (median 32 GB).
Price per GB $7.70 per GB
Pricier than about 54% 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 numberMR25600-628K4
Total capacity64 GB (4 × 16 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 rank2Rx8
Heat spreaderNo
Power
Rated voltage1.2 V

Other versions of this model

5 more in the same range

Questions about this item

Does my Dell Precision 7865 need four free 288-pin DDR4 RDIMM slots to install this 64 GB kit?

Yes, the kit contains four 16 GB modules and each occupies one 288-pin DDR4 RDIMM slot on the motherboard.

Can I mix these 3200 MHz CL22 registered ECC modules with slower DDR4 ECC RDIMMs already in the system?

The motherboard will run all installed modules at the speed and timings of the slowest kit, so mixing is possible but reduces overall memory performance.

How can I confirm the full 64 GB is recognised and ECC is active after installation?

Check the system BIOS or UEFI memory information screen; it should show 64 GB total capacity, 3200 MT/s speed and ECC enabled for each populated slot.

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