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Four green 288-pin DDR4 ECC registered DIMMs in a row

OWC

OWC 128GB (4×32GB) DDR4 2933 ECC Registered RDIMM memory upgrade

SKU CH-1351-DSJ95

128 GB DDR4 2933 ECC registered RDIMM kit of four 32 GB modules for PowerEdge C4140 servers

  • Capacity128GB (4 x 32GB)
  • Type288-Pin DDR4 ECC RDIMM
  • SpeedDDR4 2933 (PC4 23400)
  • CAS LatencyCL21
  • Voltage1.2V
  • ECCYes

Capacity 128GB (4 x 32GB)

Voir les 4 autres configurations
  • 128GB kit expands server capacity with four 32GB modules
  • ECC registered design protects data integrity in critical workloads
  • 2933MHz CL21 speed delivers responsive performance for demanding applications
  • 2V operation reduces power draw and heat output
  • Compatible with PowerEdge C4140 SkyLake systems and backward compatible to 2133, 2400, 2666MHz

128GB DDR4 ECC RDIMM Kit

This kit supplies 128GB of DDR4 2933 registered ECC memory in four 32GB modules. It is built for Dell PowerEdge C4140 servers running SkyLake CPUs and replaces Dell part numbers 8WKDY, AA579531, AA601616, AB003153, SNP8WKDYC/32G and SNP8WKDYC/32VXR. Modules run at 1.2V with CL21 latency and a 2Rx4 rank layout.

Works in PowerEdge C4140 only

The memory fits the PowerEdge C4140 (SkyLake CPU) and other systems that accept DDR4 288-pin registered ECC RDIMMs. It will not work in standard desktops, laptops or consumer motherboards that require unbuffered non-ECC modules. Buyers who need unbuffered memory or load-reduced DIMMs must choose a different product type.

Registered ECC with 2Rx4 organisation

Each module uses a 2Rx4 registered ECC organisation, which is the single specification that determines compatibility with the server memory controller. Mixing these sticks with unbuffered or load-reduced DIMMs will prevent the system from posting. Verify that your platform requires registered ECC RDIMMs before ordering.

Points forts

  • 128GB kit expands server capacity with four 32GB modules
  • ECC registered design protects data integrity in critical workloads
  • 2933MHz CL21 speed delivers responsive performance for demanding applications
  • 2V operation reduces power draw and heat output
  • Compatible with PowerEdge C4140 SkyLake systems and backward compatible to 2133, 2400, 2666MHz

Caractéristiques

BrandOWC
Part Number2R9D42R4128S
Capacity128GB (4 x 32GB)
Type288-Pin DDR4 ECC RDIMM
SpeedDDR4 2933 (PC4 23400)
CAS LatencyCL21
Voltage1.2V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
Heat SpreaderNo
Compatible SystemPowerEdge C4140 (SkyLake CPU)

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Questions sur cet article

What server or workstation must I already have for this 128 GB DDR4 2933 ECC RDIMM kit to work?

The kit is validated for the Dell PowerEdge C4140 with SkyLake CPUs and replaces Dell part numbers 8WKDY AA579531 AA601616 AB003153 SNP8WKDYC/32G SNP8WKDYC/32VXR.

Can I keep my existing 2133 MHz, 2400 MHz or 2666 MHz DDR4 ECC registered modules and add these four 32 GB sticks?

Yes, the modules are backward compatible with 2133 MHz, 2400 MHz and 2666 MHz speeds, but all populated slots must use ECC registered DIMMs — mixing with unbuffered or load-reduced memory is not supported.

How do I confirm the kit is running at the correct 2933 MHz CL21 1.2 V settings after installation?

Check the BIOS or system management console; it should report each module as 32 GB DDR4 2933 PC4-23400 CL21 2Rx4 registered ECC at 1.2 V, totalling 128 GB.

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