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Single green 288-pin DDR4 RDIMM module, black chips, no heat spreader

OWC

OWC 64GB DDR4 2933 ECC Registered RDIMM 2Rx4 CL21 1.2V 288-pin memory upgrade

SKU CH-91C0-P3PC8

64 GB DDR4-2933 ECC registered RDIMM for Cisco UCS B200 M5, B480 M5, C220 M5, C240 M5 and C480 M5 servers

  • Capacity64GB
  • Type288-Pin DDR4 ECC RDIMM
  • SpeedDDR4 2933 (PC4 23400)
  • CAS LatencyCL21
  • Voltage1.2V
  • ECCYes

Capacity 64GB

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  • 64 GB capacity lets you run larger workloads in Cisco UCS servers
  • ECC registered design detects and corrects data errors for server reliability
  • DDR4 2933 speed with CL21 latency matches Cisco UCS B200 M5, B480 M5, C220 M5, C240 M5 and C480 M5 specs
  • 2 V operation reduces power draw in dense memory configurations
  • Backward compatible with 2133, 2400 and 2666 MHz systems for flexible deployment

Targeted Server Memory Upgrade

This single 64GB DDR4 2933 ECC Registered RDIMM is built for Cisco UCS B200 M5, B480 M5, C220 M5, C240 M5 and C480 M5 servers. It provides error-correcting, registered memory for workloads that require data integrity and high capacity in supported platforms. The module uses a 2Rx4 organisation and operates at 1.2V.

DDR4 2933 Registered Interface Limits

The RDIMM runs at PC4-23400 with a CAS latency of 21 and is backward compatible with 2133, 2400 and 2666MHz system buses. It cannot be mixed with unbuffered or load-reduced ECC modules, and the registered design prevents use in standard desktop or consumer motherboards that expect unbuffered DIMMs.

Pre-Installation Compatibility Checks

Verify that your Cisco UCS model appears in the supported list and that the system firmware accepts registered ECC DIMMs. Confirm the server has free 288-pin DDR4 slots and that existing modules are also registered ECC to avoid mixing incompatible memory types. No heat spreader is fitted, so ensure airflow meets the chassis requirements.

Besonderheiten

  • 64 GB capacity lets you run larger workloads in Cisco UCS servers
  • ECC registered design detects and corrects data errors for server reliability
  • DDR4 2933 speed with CL21 latency matches Cisco UCS B200 M5, B480 M5, C220 M5, C240 M5 and C480 M5 specs
  • 2 V operation reduces power draw in dense memory configurations
  • Backward compatible with 2133, 2400 and 2666 MHz systems for flexible deployment

Technische Daten

BrandOWC
Part Number2R9D42R464GB
Capacity64GB
Type288-Pin DDR4 ECC RDIMM
SpeedDDR4 2933 (PC4 23400)
CAS LatencyCL21
Voltage1.2V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
Heat SpreaderNo
Compatible SystemCisco UCS B200 M5
Cisco UCS B480 M5
Cisco UCS C220 M5
Cisco UCS C240 M5
Cisco UCS C480 M5

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Fragen zu diesem Artikel

Should I choose the 64GB module or add multiple smaller modules?

This is a single 64GB DDR4 2933 ECC Registered RDIMM. Add one module per available slot; the server's memory controller determines maximum total capacity.

What does the 2933MHz speed deliver in a Cisco UCS M5 server?

The module runs at DDR4 2933 (PC4-23400) with CL21 latency. In supported Cisco UCS B200 M5, B480 M5, C220 M5, C240 M5 and C480 M5 systems it operates at the platform's maximum rated memory speed.

How does the 288-pin DDR4 ECC Registered interface limit compatibility?

The 288-pin DDR4 ECC Registered RDIMM fits only server and workstation boards that support registered ECC memory. It will not work in standard desktop boards and cannot be mixed with unbuffered or load-reduced modules.

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