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Two green DDR5 RDIMM modules, 288-pin, no heat spreader

OWC

OWC 32GB (2x16GB) DDR5 4800 ECC RDIMM memory upgrade

SKU CH-1Z14-G4WB2

32 GB dual-channel DDR5 4800 ECC registered memory kit for Cisco UCS C220 M7, C240 M7, X210c M7 and X410c M7 servers

  • Capacity32GB (2 x 16GB)
  • Type288-Pin DDR5 ECC RDIMM
  • SpeedDDR5 4800 (PC5 38400)
  • CAS LatencyCL40
  • Voltage1.1V
  • ECCYes

Capacity 32GB (2 x 16GB)

  • ECC registered design prevents data errors in critical workloads
  • 4800 MT/s DDR5 speed handles demanding server applications
  • 32 GB dual-channel kit expands memory capacity for virtualization
  • 1 V operation reduces power draw in dense deployments
  • Validated for Cisco UCS C220 M7, C240 M7, X210c M7 and X410c M7

Server ECC RDIMM upgrade kit

This OWC kit supplies 32 GB of DDR5 ECC registered memory in two 16 GB modules built for Cisco UCS C220 M7 SFF, C240 M7 SFF, X210c M7 and X410c M7 servers. It is intended for administrators who need to expand capacity in these specific platforms without mixing registered and unbuffered DIMMs. The modules will not work in standard desktop computers or consumer motherboards.

Thermals noise and power

Each module runs at 1.1 V and carries no heat spreader, relying on server chassis airflow for cooling. The registered design adds a clock cycle of buffering that stabilises heavy memory loads typical of virtualisation workloads. Power draw scales with the number of populated slots, so total consumption depends on the server configuration.

Kit contents and compliance

The package contains two 288-pin DDR5 4800 CL40 1Rx8 RDIMMs labelled with OWC part number 4R8D51R8032P and replaces Cisco part UCS-MRX16G1RE1. All modules are JEDEC and RoHS compliant and covered by OWC’s limited lifetime warranty with free technical support. No additional software, cables or mounting hardware are included.

Puntos fuertes

  • ECC registered design prevents data errors in critical workloads
  • 4800 MT/s DDR5 speed handles demanding server applications
  • 32 GB dual-channel kit expands memory capacity for virtualization
  • 1 V operation reduces power draw in dense deployments
  • Validated for Cisco UCS C220 M7, C240 M7, X210c M7 and X410c M7

Especificaciones

BrandOWC
Part Number4R8D51R8032P
Capacity32GB (2 x 16GB)
Type288-Pin DDR5 ECC RDIMM
SpeedDDR5 4800 (PC5 38400)
CAS LatencyCL40
Voltage1.1V
ECCYes
Buffered/RegisteredRegistered
Rank1Rx8
Heat SpreaderNo
Compatible SystemCisco UCS C220 M7 SFF
Cisco UCS C240 M7 SFF
Cisco UCS X210c M7
Cisco UCS X410c M7

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Preguntas sobre este artículo

How do I install the 288-pin DDR5 ECC RDIMM modules in a Cisco UCS C220 M7 SFF, and what step is often missed?

Power down the server, open the chassis, align each 16 GB module's notch with the 288-pin slot key, press firmly until the ejector tabs click, then verify in BIOS that both DIMMs appear at 4800 MT/s CL40; the step often missed is seating both modules in the correct channel pair for the specific CPU socket.

What maintenance or replacement will the 1.1 V ECC Registered kit need over its service life?

The modules have no heat spreader and no moving parts, so no scheduled maintenance is required; replacement is only needed if a DIMM fails ECC scrubbing or the server is upgraded beyond the 32 GB (2 × 16 GB) capacity this kit provides.

What limit appears first when the RDIMM kit runs sustained workloads in a Cisco UCS X410c M7?

The primary limit is the 32 GB total capacity (2 × 16 GB 1Rx8), which caps the working set size before the DDR5 4800 CL40 bandwidth or 1.1 V thermal envelope become bottlenecks.

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