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Green rectangular DDR4 memory module with gold edge contacts and black chips, no heat spreader

OWC

OWC 32GB DDR4 2933 ECC Registered RDIMM 2Rx4 CL21 1.2V PowerEdge C4140 CascadeLake

SKU CH-NRHD-R93XR

A 32 GB DDR4 2933 ECC registered RDIMM for PowerEdge C4140 CascadeLake servers

  • Capacity32GB
  • Type288-Pin DDR4 ECC RDIMM
  • SpeedDDR4 2933 (PC4 23400)
  • CAS LatencyCL21
  • Voltage1.2V
  • ECCYes

Capacity 32GB

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  • 32GB capacity supports demanding server workloads
  • ECC registered design prevents data corruption in critical applications
  • DDR4 2933MHz CL21 delivers responsive performance for PowerEdge C4140
  • 2V operation reduces power draw in dense configurations
  • Backward compatible with 2133, 2400, 2666MHz systems for flexible deployment

Server memory upgrade

This 32 GB DDR4 ECC registered RDIMM is built for the Dell PowerEdge C4140 running Cascade Lake CPUs. It delivers 2933 MT/s at CL21 with a 1.2 V operating voltage. The dual-rank 2Rx4 organisation fits the platform's registered memory requirement. Workstations and standard desktops cannot use this module.

Replaces slower DDR4

The module is backward compatible with 2133, 2400 and 2666 MT/s speeds, so it can replace older DDR4 RDIMMs in the same server. The upgrade is worthwhile when the system currently runs at lower frequencies or when additional capacity is needed for virtualisation workloads. It cannot be mixed with unbuffered or load-reduced ECC memory.

Single-slot capacity

Each stick provides 32 GB in one 288-pin slot, freeing remaining DIMM positions for further expansion. The registered design adds a clock cycle of buffering to maintain signal integrity across full memory populations. No heat spreader is fitted, so airflow in dense chassis is unimpeded. The module follows JEDEC and RoHS standards.

Puntos fuertes

  • 32GB capacity supports demanding server workloads
  • ECC registered design prevents data corruption in critical applications
  • DDR4 2933MHz CL21 delivers responsive performance for PowerEdge C4140
  • 2V operation reduces power draw in dense configurations
  • Backward compatible with 2133, 2400, 2666MHz systems for flexible deployment

Especificaciones

BrandOWC
Part Number2R9D42R432GB
Capacity32GB
Type288-Pin DDR4 ECC RDIMM
SpeedDDR4 2933 (PC4 23400)
CAS LatencyCL21
Voltage1.2V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
Heat SpreaderNo
Compatible SystemPowerEdge C4140 (CascadeLake CPU)

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Preguntas sobre este artículo

Will this 288-pin DDR4 RDIMM fit the memory slots in a PowerEdge C4140 server?

Yes, the 288-pin DDR4 ECC registered form factor matches the PowerEdge C4140 slot design for Cascade Lake CPUs.

What is the correct way to install this 2Rx4 module so the server recognises all 32GB?

Align the notch on the module with the key in the slot, press firmly until both retention clips click, and populate slots per the C4140 memory population guide for registered DIMMs.

Does the lack of a heat spreader mean I must add cooling when running at 2933 MHz?

The module is JEDEC-compliant at 1.2 V and operates within standard thermal limits; additional cooling is not required for normal server airflow.

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