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Four green DDR5 RDIMM modules with gold contacts, no heat spreaders

OWC

OWC 128GB (4x32GB) DDR5 4800 CL40 ECC RDIMM ThinkSystem 650 665 630 V3

SKU CH-Y4FG-JXZ63

128 GB DDR5-4800 ECC registered RDIMM kit (4 × 32 GB, CL40, 1.1 V) validated for Lenovo ThinkSystem SD650 V3, SD650-I V3, SD665 V3, SD665-N V3 and SR630 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 per module
  • Validated for ThinkSystem SD650 V3 SD665 V3 SR630 V3 platforms

DDR5 ECC RDIMM kit for ThinkSystem servers

This 128 GB kit contains four 32 GB DDR5 4800 CL40 registered DIMMs built for Lenovo ThinkSystem SD650 V3, SD650-I V3, SD665 V3, SD665-N V3 and SR630 V3 platforms. It targets administrators who need to expand memory capacity in those specific rack and dense-compute servers.

JEDEC-standard registered ECC modules

Each module operates at 1.1 V with a 2Rx8 organisation and no heat spreader, meeting JEDEC and RoHS requirements for warranty-safe deployment. The registered buffer and on-die ECC correct single-bit errors and improve signal integrity across all populated slots in the supported ThinkSystem chassis.

DDR5 4800 interface limits

The PC5-38400 data rate and CL40 latency define the maximum bandwidth and timing envelope available to the memory controller in these systems. Buyers who need higher frequencies, lower latencies or unbuffered DIMMs cannot use this kit, and mixing it with load-reduced or non-ECC memory is not supported.

Points forts

  • 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 per module
  • Validated for ThinkSystem SD650 V3 SD665 V3 SR630 V3 platforms

Caractéristiques

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 SD650 V3
Lenovo ThinkSystem SD650-I V3
Lenovo ThinkSystem SD665 V3
Lenovo ThinkSystem SD665-N V3
Lenovo ThinkSystem SR630 V3

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Questions sur cet article

Will the 288-pin DDR5 RDIMMs need replacement after a certain number of operating cycles?

The modules are built to JEDEC DDR5 standards and carry a limited lifetime warranty, so they are expected to last for the service life of the ThinkSystem server.

What is the first limit reached when the 128GB kit runs at DDR5 4800 continuously?

The CL40 latency at 4800 MT/s sets the bandwidth ceiling; sustained workloads will hit this timing boundary before voltage or thermal limits.

How much heat and power do the four 32GB modules draw at 1.1V in a ThinkSystem chassis?

Each module operates at 1.1V without a heat spreader; server chassis airflow is designed to dissipate the thermal load during continuous operation.

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