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Two green DDR5 RDIMM modules, bare circuit boards with gold contacts, no heat spreaders

OWC

OWC 64GB (2x32GB) DDR5 4800 ECC Registered RDIMM CL40 1.1V 288-pin 2Rx8 Dell Precision 5860 7960

SKU CH-N54P-9PZ31

ECC registered DDR5 kit adds 64 GB across two 32 GB modules at 4800 MHz CL40 for Dell Precision 5860 and 7960 workstations

  • Total capacity64 GB (2 × 32 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • Memory rank2Rx8

Capacity 64GB (2 x 32GB)

  • ECC registered design protects data integrity in workstations
  • 64GB kit (2×32GB) expands capacity for heavy workloads
  • DDR5 4800 CL40 speed delivers high throughput at 1.1V
  • Validated for Dell Precision 5860 and 7960 series towers and rack
  • JEDEC-standard compliant modules ensure warranty-safe upgrades

OWC 64GB DDR5 ECC RDIMM Kit

This OWC kit delivers 64GB of DDR5 4800 memory in two 32GB registered DIMMs. It operates at 1.1V with CL40 latency and includes on-die ECC for error correction. The modules are 288-pin RDIMMs built to JEDEC standards for Dell Precision workstations.

For Dell Precision 5860 and 7960 Workstations

This memory suits owners of Precision 5860, 5860XL, 7960, 7960XL towers and the 7960 rack who need registered ECC capacity. It will not work in standard desktop PCs, consumer motherboards or systems that require unbuffered or load-reduced DIMMs.

Simple DIMM Installation

Install by powering down, opening the chassis and seating each 288-pin module into the correct DDR5 slots for your Precision model. The most common issue is mixing these registered DIMMs with unbuffered or LRDIMM memory, which prevents the system from booting.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $1,537.99
Pricier than about 65% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB (2 × 32 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $24.03 per GB
Pricier than about 69% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number4R8D52R8064P
Total capacity64 GB (2 × 32 GB)
Product type288-Pin DDR5 ECC RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Memory
CAS latencyCL40
ECC supportYes
Buffer typeRegistered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsDell Precision Workstation 5860 Tower
Dell Precision Workstation 5860XL Tower
Dell Precision Workstation 7960 Rack
Dell Precision Workstation 7960 Tower
Dell Precision Workstation 7960XL Tower

Other versions of this model

5 more in the same range

Questions about this item

My Dell Precision 5860 Tower currently has two empty DDR5 ECC RDIMM slots — will this 2x32GB kit fill them correctly?

Yes, the kit provides two 32GB DDR5 4800 CL40 1.1V ECC Registered 288-pin 2Rx8 modules that match the 5860 Tower's supported memory type and slot count.

Can I mix these OWC ECC Registered RDIMMs with any unbuffered or load-reduced memory already installed in my 7960 workstation?

No, the manufacturer states these Registered ECC modules cannot be mixed with unbuffered or ECC load-reduced memory; all populated slots must use the same registered ECC type.

After installing both modules, how can I confirm the system is running them at the rated DDR5 4800 speed and CL40 latency?

Enter the system BIOS or use a tool such as CPU-Z; the memory information should show 4800 MT/s (PC5-38400) and CAS latency 40 for each installed 32GB DIMM.

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