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Green bare 288-pin DDR4 RDIMM with black chips, no heat spreader

OWC

OWC 64GB DDR4 2933MHz ECC Registered RDIMM 2Rx4 288pin Dell PowerEdge R840 R940 R940xa T640 memory upgrade

SKU CH-MPBB-C5G4S

64 GB DDR4 ECC registered RDIMM running at 2933 MHz with CL21 latency for Dell PowerEdge R840, R940, R940xa and T640 servers

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

Capacity 64GB

  • 64 GB capacity expands server memory headroom
  • DDR4 2933 MHz CL21 delivers high throughput for demanding workloads
  • ECC registered design detects and corrects data errors
  • 2 V operation reduces power draw in dense configurations
  • Compatible with Dell PowerEdge R840 R940 R940xa T640 systems

Server-grade 64GB DDR4 ECC module

This 64GB DDR4 2933MHz ECC Registered RDIMM is built for Dell PowerEdge R840, R940, R940xa and T640 servers. It delivers 64GB capacity at PC4-23400 speed with CL21 latency and 1.2V operation. The 2Rx4 dual-rank organisation suits high-density server configurations. It is not compatible with standard desktop computers or unbuffered memory.

Sustained error-corrected throughput

ECC registered operation corrects single-bit errors and detects multi-bit errors continuously during long compute runs. Registered buffering reduces electrical load on the memory controller, keeping signal integrity stable across fully populated channels. Backward compatibility with 2133MHz, 2400MHz and 2666MHz buses lets the module clock down without data integrity loss when mixed with slower DIMMs.

Bare 288-pin RDIMM for dense chassis

The module has no heat spreader, allowing tight DIMM spacing in 1U and 2U Dell PowerEdge chassis where airflow is directed by system fans. Standard 288-pin RDIMM keying prevents accidental insertion into desktop UDIMM slots. Replacement part numbers AA579530, AA601615, AB003154, SNPW403YC/64G, SNPW403YC/64VXR and W403Y confirm exact mechanical and electrical fit for the listed servers.

Puntos fuertes

  • 64 GB capacity expands server memory headroom
  • DDR4 2933 MHz CL21 delivers high throughput for demanding workloads
  • ECC registered design detects and corrects data errors
  • 2 V operation reduces power draw in dense configurations
  • Compatible with Dell PowerEdge R840 R940 R940xa T640 systems

Especificaciones

BrandOWC
Part Number2R9D42R464GB
Capacity64GB
Type288-Pin DDR4 ECC RDIMM
SpeedDDR4 2933 (PC4 23400)
CAS LatencyCL21
Voltage1.2V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
Heat SpreaderNo
Compatible SystemDell PowerEdge R840
Dell PowerEdge R940
Dell PowerEdge R940xa
Dell PowerEdge T640

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Preguntas sobre este artículo

How much power does the 64GB DDR4 2933MHz module draw at its rated 1.2V voltage?

The module operates at 1.2V, the standard DDR4 voltage, which keeps power draw low during continuous server workloads.

What server platform must I already have for this 288-pin ECC Registered RDIMM to function?

It requires a Dell PowerEdge R840, R940, R940xa or T640 that supports DDR4 2933MHz ECC Registered memory.

Will this 2Rx4 CL21 module run with existing 2133MHz or 2400MHz DIMMs already installed in my PowerEdge?

Yes, it is backward compatible with 2133MHz, 2400MHz and 2666MHz speeds, though the system will run all modules at the lowest common speed.

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