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Green rectangular circuit board with gold edge connectors and black memory chips on both sides

OWC

OWC 128GB DDR4 2933 ECC Registered RDIMM 8Rx4 CL21 1.2V 288-pin memory upgrade

SKU CH-CYX6-T09HW

A single 128GB DDR4 2933 ECC registered RDIMM with CL21 latency and 1.2V operation for Dell PowerEdge R740, R740xd, R840, R940 and R940xa servers

  • Capacity128GB
  • Type288-Pin DDR4 ECC RDIMM
  • SpeedDDR4 2933 (PC4 23400)
  • CAS Latency21
  • Voltage1.2V
  • ECCYes
  • 128 GB single-module capacity simplifies dense server configurations
  • ECC registered design protects data integrity in Dell PowerEdge R740, R740xd, R840, R940 and R940xa systems
  • DDR4 2933 MHz speed with CL21 latency delivers responsive multitasking throughput
  • 2 V operation reduces power draw while maintaining JEDEC-standard reliability
  • Backward compatible with 2133, 2400 and 2666 MHz platforms for flexible deployment

Server Memory Upgrade

This OWC module delivers 128GB of DDR4 ECC Registered memory rated at 2933 MT/s with CL21 latency and 1.2V operation. The 288-pin RDIMM uses an 8Rx4 organisation and is validated for Dell PowerEdge R740, R740xd, R840, R940 and R940xa servers. It cannot be mixed with unbuffered or load-reduced DIMMs.

IT Departments and Server Builders

The part suits teams extending the life of compatible PowerEdge platforms or assembling new servers that require registered ECC memory at this density and speed. It will not work in standard desktop PCs, workstations that demand unbuffered DIMMs, or systems limited to lower maximum module capacities.

Registered ECC Requirement

The single specification that decides fit is the registered ECC RDIMM form factor. Only platforms whose memory controllers and BIOS explicitly support registered error-correcting modules at DDR4 2933 can use this upgrade; any system lacking that support will not boot with this module installed.

商品特色

  • 128 GB single-module capacity simplifies dense server configurations
  • ECC registered design protects data integrity in Dell PowerEdge R740, R740xd, R840, R940 and R940xa systems
  • DDR4 2933 MHz speed with CL21 latency delivers responsive multitasking throughput
  • 2 V operation reduces power draw while maintaining JEDEC-standard reliability
  • Backward compatible with 2133, 2400 and 2666 MHz platforms for flexible deployment

商品規格

BrandOWC
Part Number2R9D48R4128G
Capacity128GB
Type288-Pin DDR4 ECC RDIMM
SpeedDDR4 2933 (PC4 23400)
CAS Latency21
Voltage1.2V
ECCYes
Buffered/RegisteredRegistered
Rank8Rx4
Heat SpreaderNo
Compatible SystemDell PowerEdge R740
Dell PowerEdge R740xd
Dell PowerEdge R840
Dell PowerEdge R940
Dell PowerEdge R940xa

商品問答

How much power does the 1.2V 128GB module draw under sustained server loads?

The module operates at 1.2V, matching the JEDEC DDR4 standard for registered ECC DIMMs, so power draw stays within the platform's normal memory budget during continuous operation.

Which Dell PowerEdge chassis must I already have for this 288-pin RDIMM to be recognised?

It is validated for Dell PowerEdge R740, R740xd, R840, R940 and R940xa systems that accept 288-pin DDR4 registered ECC memory.

Will this 2933MHz CL21 8Rx4 stick run alongside existing 2666MHz modules in my R740?

Yes, the DIMM is backward compatible with 2133MHz, 2400MHz and 2666MHz speeds, though the system will clock all modules to the lowest common rate.

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