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Four green DDR5 RDIMM sticks with gold contacts and black chips

OWC

OWC 128GB (4x32GB) DDR5 4800 CL40 ECC RDIMM Kit

SKU CH-JCJ9-RPRFH

A 128 GB DDR5 ECC registered RDIMM kit of four 32 GB modules at 4800 MT/s CL40 for Lenovo ThinkSystem SR675 V3, SR850 V3, SR860 V3 and ST650 V3 servers

  • Capacity128GB (4 x 32GB)
  • Type288-Pin DDR5 ECC RDIMM
  • SpeedDDR5 4800 (PC5 38400)
  • CAS LatencyCL40
  • Voltage1.1V
  • ECCYes

Capacity 128GB (4 x 32GB)

  • 128 GB total capacity from four 32 GB modules
  • DDR5 4800 speed with CL40 latency for server workloads
  • ECC registered design protects data integrity in critical systems
  • 1 V operation reduces power draw under load
  • Validated for ThinkSystem SR675 V3 SR850 V3 SR860 V3 ST650 V3

128 GB DDR5 ECC RDIMM Kit

This kit delivers 128 GB of DDR5 4800 ECC registered memory in four 32 GB modules. It is built for Lenovo ThinkSystem SR675 V3, SR850 V3, SR860 V3 and ST650 V3 servers that require registered DIMMs with error correction.

Server and Workstation Upgrade

The modules suit administrators expanding capacity in the listed ThinkSystem platforms or building new nodes that demand registered ECC memory. They will not work in standard desktops, consumer workstations or any system that only accepts unbuffered or load-reduced DIMMs.

Straightforward DIMM Installation

Installation follows the server’s documented memory population rules; seat each 288-pin module until the ejectors latch. The most common issue is mixing these registered DIMMs with unbuffered or LRDIMM types, which prevents the system from posting.

Ciri-ciri utama

  • 128 GB total capacity from four 32 GB modules
  • DDR5 4800 speed with CL40 latency for server workloads
  • ECC registered design protects data integrity in critical systems
  • 1 V operation reduces power draw under load
  • Validated for ThinkSystem SR675 V3 SR850 V3 SR860 V3 ST650 V3

Spesifikasi

BrandOWC
Part Number4R8D52R8128S
Capacity128GB (4 x 32GB)
Type288-Pin DDR5 ECC RDIMM
SpeedDDR5 4800 (PC5 38400)
CAS LatencyCL40
Voltage1.1V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx8
Heat SpreaderNo
Compatible SystemLenovo ThinkSystem SR675 V3
Lenovo ThinkSystem SR850 V3
Lenovo ThinkSystem SR860 V3
Lenovo ThinkSystem ST650 V3

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Which Lenovo ThinkSystem servers must I already own for this 128GB DDR5 4800 ECC RDIMM kit to work?

This kit is validated for the ThinkSystem SR675 V3, SR850 V3, SR860 V3 and ST650 V3 servers.

Can I keep my existing DDR5 4800 RDIMMs and add these four 32GB modules without issues?

Only if the installed modules are also ECC registered 2Rx8 DDR5 4800 CL40 at 1.1V; mixing with unbuffered or load-reduced DIMMs is not supported.

How do I confirm the kit is running at the rated 4800 MT/s CL40 after installation?

Check the server BIOS or operating system memory report — it should show 4800 MT/s speed, CL40 latency, 1.1V voltage and ECC registered status for all four modules.

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