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Two bare green DDR5 RDIMM modules side by side

OWC

OWC 128GB (2x64GB) DDR5 4800 CL40 ECC RDIMM memory upgrade

SKU CH-CG24-DT3XJ

128 GB DDR5-4800 ECC registered kit (2 × 64 GB, CL40, 1.1 V) validated for Dell Precision 5860, 5860XL, 7960 and 7960XL workstations

  • Capacity128GB (2 x 64GB)
  • Type288-Pin DDR5 ECC RDIMM
  • SpeedDDR5 4800 (PC5 38400)
  • CAS LatencyCL40
  • Voltage1.1V
  • ECCYes

Capacity 128GB (2 x 64GB)

  • 128 GB total capacity from two 64 GB modules
  • DDR5 4800 MT/s speed with CL40 latency
  • ECC registered design detects and corrects memory errors
  • 1 V operation meets JEDEC DDR5 standard
  • Validated for Dell Precision 5860 and 7960 workstations

ECC Registered DDR5 for Dell Precision

This kit provides 128GB of DDR5 4800 CL40 memory in two 64GB registered DIMMs. It is built for Dell Precision 5860, 5860XL, 7960, 7960XL towers and the 7960 rack workstation. The modules operate at 1.1V and conform to JEDEC PC5-38400 standards. They are not compatible with standard desktop PCs or unbuffered memory configurations.

Sustained load behaviour with registered ECC

Registered buffering reduces electrical load on the memory controller during continuous operation. ECC corrects single-bit errors in real time, preventing data corruption in long-running workloads. The 2Rx4 organisation supports high-density capacity across both modules. CL40 latency and 4800MT/s throughput deliver stable bandwidth for extended compute tasks.

Upgrade path from lower-capacity RDIMMs

This kit replaces smaller registered ECC modules to maximise supported memory slots. The jump is worth it when workloads exceed current capacity or require error correction at scale. It cannot be mixed with load-reduced or unbuffered DIMMs. Buyers needing non-ECC memory or consumer desktop compatibility should look elsewhere.

Points forts

  • 128 GB total capacity from two 64 GB modules
  • DDR5 4800 MT/s speed with CL40 latency
  • ECC registered design detects and corrects memory errors
  • 1 V operation meets JEDEC DDR5 standard
  • Validated for Dell Precision 5860 and 7960 workstations

Caractéristiques

BrandOWC
Part Number4R8D52R4128P
Capacity128GB (2 x 64GB)
Type288-Pin DDR5 ECC RDIMM
SpeedDDR5 4800 (PC5 38400)
CAS LatencyCL40
Voltage1.1V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
Heat SpreaderNo
Compatible SystemDell Precision Workstation 5860 Tower
Dell Precision Workstation 5860XL Tower
Dell Precision Workstation 7960 Rack
Dell Precision Workstation 7960 Tower
Dell Precision Workstation 7960XL Tower

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Questions sur cet article

Will the 1.1V DDR5 modules add noticeable heat when the Dell Precision 7960 runs all day?

The kit runs at the standard 1.1V JEDEC voltage for DDR5 4800, so power draw and thermal output are in line with other DDR5-4800 registered DIMMs.

Does my Dell Precision 5860 need a specific BIOS version or CPU stepping to recognise 2Rx4 registered ECC DIMMs?

The modules are validated for the listed Precision 5860, 5860XL, 7960, 7960XL and 7960 Rack systems; no additional BIOS or CPU requirements are mentioned in the compatibility data.

Can I add this 128 GB kit alongside the 64 GB RDIMMs already installed in my Precision 7960?

The manufacturer states these registered ECC DIMMs must not be mixed with unbuffered or load-reduced memory, but adding further identical registered modules to empty slots is supported.

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