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Two green 288-pin DDR4 RDIMM modules in anti-static tray

OWC

OWC 128GB (2x64GB) DDR4 2933 ECC RDIMM PowerEdge C4140 memory upgrade

SKU CH-1W5B-M72V0

A 128 GB kit of two 64 GB DDR4 2933 ECC registered RDIMMs for Dell PowerEdge C4140 servers with Cascade Lake CPUs

  • Capacity128GB (2 x 64GB)
  • Type288-Pin DDR4 ECC RDIMM
  • SpeedDDR4 2933 (PC4 23400)
  • CAS LatencyCL21
  • Voltage1.2V
  • ECCYes

Capacity 128GB (2 x 64GB)

Voir les 4 autres configurations
  • 128 GB total capacity from two 64 GB modules
  • DDR4 2933 MT/s speed rated at PC4-23400 CL21
  • ECC registered design detects and corrects single-bit errors
  • 2 V operation matches standard DDR4 voltage
  • Compatible with PowerEdge C4140 systems using Cascade Lake CPUs

Server memory upgrade kit

This 128 GB kit contains two 64 GB DDR4 2933 ECC registered DIMMs built for the Dell PowerEdge C4140 with Cascade Lake processors. It targets administrators who need to expand capacity on that specific platform without mixing memory types.

Registered ECC 288-pin DIMMs

Modules use the 288-pin RDIMM form factor, run at 1.2 V and carry a CL21 latency rating. The registered buffer and ECC function mean they cannot be used in standard desktops or mixed with unbuffered or load-reduced memory.

Verify slot count and population rules

Before ordering, confirm the C4140 has free DIMM slots and that the existing configuration allows adding a matched pair of 2Rx4 modules. The kit replaces Dell part numbers AA579530, AA601615, AB003154 and SNPW403YC variants.

Points forts

  • 128 GB total capacity from two 64 GB modules
  • DDR4 2933 MT/s speed rated at PC4-23400 CL21
  • ECC registered design detects and corrects single-bit errors
  • 2 V operation matches standard DDR4 voltage
  • Compatible with PowerEdge C4140 systems using Cascade Lake CPUs

Caractéristiques

BrandOWC
Part Number2R9D42R4128P
Capacity128GB (2 x 64GB)
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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Questions sur cet article

What DDR4 speed does this kit run at and what JEDEC standard does it follow?

The modules operate at DDR4 2933 (PC4-23400) with CL21 latency and are fully JEDEC-compliant at 1.2V.

Will these 288-pin ECC RDIMMs physically fit the PowerEdge C4140 memory slots?

Yes, they are 288-pin DDR4 ECC Registered DIMMs built specifically for the C4140 with CascadeLake CPUs.

How should the two 64GB 2Rx4 modules be installed and what common mistake should I avoid?

Install both modules in matched channel slots per the C4140 guide; do not mix them with unbuffered or load-reduced ECC memory.

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