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Four green DDR4 RDIMM modules with gold contacts, no heat spreaders

OWC

OWC 128GB (4x32GB) DDR4 3200 CL22 ECC Registered RDIMM memory upgrade

SKU CH-M2EW-RFA5A

128 GB DDR4 ECC registered RDIMM kit (four 32 GB modules at 3200 MT/s, CL22, 1.2 V) validated for Cisco UCS B200 M6, C125 M5, C220 M6, C240 M6 and C245 M6 servers

  • Capacity128GB (4 x 32GB)
  • Type288-Pin DDR4 ECC RDIMM
  • SpeedDDR4 3200 (PC4 25600)
  • CAS LatencyCL22
  • Voltage1.2V
  • ECCYes

Capacity 128GB (4 x 32GB)

Ver as outras 3 configurações
  • 128 GB total capacity from four 32 GB modules
  • DDR4 3200 speed with CL22 latency for responsive server workloads
  • ECC registered design detects and corrects single-bit errors
  • 2 V operation lowers power draw in dense configurations
  • Validated for Cisco UCS B200 M6, C125 M5, C220 M6, C240 M6, C245 M6

Cisco UCS Server Upgrade

This 128GB kit contains four 32GB DDR4 3200 ECC Registered RDIMM modules built for Cisco UCS B200 M6, C125 M5, C220 M6, C240 M6 and C245 M6 servers. It is designed for administrators who need to expand memory capacity in these specific platforms.

Registered DIMM Installation

Each 288-pin module seats in a standard DDR4 RDIMM slot at 1.2V. The registered design adds a clock cycle, so the server must support registered memory and cannot mix these sticks with unbuffered or load-reduced types. Populating all four slots may require following the system’s population rules for 2Rx4 ranks.

Pre-Purchase Compatibility Check

Verify the server model matches the listed Cisco UCS part numbers exactly and confirm the BIOS revision supports 32GB registered modules. Ensure no unbuffered or load-reduced DIMMs remain installed, as mixing memory types will prevent the system from booting.

Pontos fortes

  • 128 GB total capacity from four 32 GB modules
  • DDR4 3200 speed with CL22 latency for responsive server workloads
  • ECC registered design detects and corrects single-bit errors
  • 2 V operation lowers power draw in dense configurations
  • Validated for Cisco UCS B200 M6, C125 M5, C220 M6, C240 M6, C245 M6

Especificações

BrandOWC
Part Number3R2D42R4128S
Capacity128GB (4 x 32GB)
Type288-Pin DDR4 ECC RDIMM
SpeedDDR4 3200 (PC4 25600)
CAS LatencyCL22
Voltage1.2V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
Heat SpreaderNo
Compatible SystemCisco UCS B200 M6
Cisco UCS C125 M5
Cisco UCS C220 M6
Cisco UCS C240 M6
Cisco UCS C245 M6

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Perguntas sobre este artigo

How can I verify the kit is running at DDR4 3200 CL22 after installation?

Check the BIOS or OS memory report; it should show four 32 GB modules operating at 3200 MT/s with CAS latency 22 and 1.2 V.

What ships in the box and what must I source separately?

The kit includes four 32 GB 288-pin DDR4 ECC Registered RDIMMs; no cables, tools or additional hardware are included.

Which capacity version should I choose for a Cisco UCS C240 M6?

This 128 GB kit (4 × 32 GB) matches the supported configuration for the C240 M6 and replaces Cisco part numbers 15-107238-01, UCSMRX32G2RW and UCSXMRX32G2RW.

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