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Four green DDR5 ECC RDIMM modules without heat spreaders

OWC

OWC 512GB (4×128GB) DDR5 4800 CL40 ECC Registered RDIMM memory upgrade

SKU CH-E61S-WDDSZ

Four 128 GB DDR5 4800 ECC registered RDIMMs totalling 512 GB for Dell Precision 5860, 5860XL, 7960, 7960XL and 7960 Rack workstations

  • Total capacity512 GB (4 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • Memory rank4Rx4

Capacity 512GB (4 x 128GB)

  • Massive 512 GB capacity from four 128 GB modules
  • DDR5 4800 speed with CL40 latency for responsive throughput
  • ECC registered design detects and corrects data errors
  • 1 V operation reduces power draw in workstations
  • Validated for Dell Precision 5860, 5860XL, 7960 and 7960XL towers and rack

Dell Precision 5860/7960 memory upgrade

This kit provides 512GB of DDR5 ECC registered memory across four 128GB modules. It is built for Dell Precision 5860 and 7960 workstations in tower and rack form factors. The registered design and ECC support make it suitable for server-class workloads where data integrity is required.

Replacing standard or lower-capacity RDIMMs

The upgrade replaces existing registered ECC modules when more capacity or a fresh JEDEC-compliant set is needed. It is worth installing when the workstation must handle larger datasets or more virtual machines than the current memory allows. Mixing with unbuffered or load-reduced DIMMs is not supported.

For workstation and server builders needing

This memory suits IT professionals expanding Dell Precision 5860 or 7960 systems with qualified DDR5 RDIMMs. It is not for standard desktop PCs, consumer motherboards, or any platform that requires unbuffered or non-ECC modules. Buyers needing different capacities or speeds should verify their system's qualified vendor list.

How it compares

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

Price $13,647.99
Pricier than about 90% of the 21,161 comparable items (median $397.99).
Total capacity 512 GB (4 × 128 GB)
Higher than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $26.66 per GB
Pricier than about 74% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number4R8D54R4512S
Total capacity512 GB (4 × 128 GB)
Product type288-Pin DDR5 ECC RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Memory
CAS latencyCL40
ECC supportYes
Buffer typeRegistered
Memory rank4Rx4
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

Will the 288-pin DDR5 RDIMMs fit the Dell Precision 5860 and 7960 memory slots?

Yes, the 288-pin DDR5 registered DIMMs match the 5860 and 7960 workstation slots exactly.

What is the correct order for populating the four 128GB modules on a Dell Precision 7960?

Follow the Dell service manual slot sequence; populate the primary channels first, then the secondary channels, and never mix with unbuffered or load-reduced DIMMs.

Do the 4Rx4 ECC registered modules require any firmware update or battery-backed cache maintenance?

No firmware or battery maintenance is needed; the JEDEC-compliant DDR5 modules operate at 1.1V and retain ECC integrity for the system lifetime.

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