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OWC

OWC 512GB (4x128GB) DDR4 3200 CL22 ECC LRDIMM Kit for Dell PowerEdge R6525 R750xa R7525

SKU CH-JYR1-5KM7G

Four 128 GB DDR4 3200 CL22 ECC load-reduced DIMMs totalling 512 GB for Dell PowerEdge R6525, R750xa and R7525 servers

  • Capacity512GB (4 x 128GB)
  • Type288-Pin DDR4 ECC LRDIMM
  • SpeedDDR4 3200 (PC4 25600)
  • CAS LatencyCL22
  • Voltage1.2V
  • ECCYes

Capacity 512GB (4 x 128GB)

  • 512 GB total capacity from four 128 GB modules
  • DDR4 3200 speed with CL22 latency at 1.2 V
  • ECC load-reduced design for server error correction
  • Compatible with PowerEdge R6525, R750xa and R7525
  • Backward compatible with 2133, 2400, 2666 and 2933 MHz systems

Server-grade ECC LRDIMM kit

This OWC kit delivers 512GB of DDR4 3200 memory across four 128GB LRDIMMs. Each module runs at CL22 latency and 1.2V with ECC load-reduced architecture. The 288-pin DDR4 form factor is built for Dell PowerEdge R6525, R750xa and R7525 servers that require registered ECC memory.

Four-module population for high density

The kit occupies four DIMM slots with 4Rx4 organisation, freeing remaining slots for future expansion while maximising per-slot capacity. Load-reduced buffering reduces electrical load on the memory controller, a requirement for these PowerEdge platforms. Modules cannot be mixed with unbuffered or standard registered ECC DIMMs in the same system.

Sustained throughput at JEDEC speeds

Rated at PC4-25600 with CL22 timing, the modules maintain specified bandwidth under continuous server workloads. Backward compatibility with 2133, 2400, 2666 and 2933MHz buses allows deployment in mixed-speed configurations without downclocking penalties. JEDEC and RoHS compliance ensures stable long-term operation in 24/7 environments.

Points forts

  • 512 GB total capacity from four 128 GB modules
  • DDR4 3200 speed with CL22 latency at 1.2 V
  • ECC load-reduced design for server error correction
  • Compatible with PowerEdge R6525, R750xa and R7525
  • Backward compatible with 2133, 2400, 2666 and 2933 MHz systems

Caractéristiques

BrandOWC
Part Number3L2D44R4512S
Capacity512GB (4 x 128GB)
Type288-Pin DDR4 ECC LRDIMM
SpeedDDR4 3200 (PC4 25600)
CAS LatencyCL22
Voltage1.2V
ECCYes
Buffered/RegisteredLoad Reduced
Rank4Rx4
Heat SpreaderNo
Compatible SystemDell PowerEdge R6525
Dell PowerEdge R750xa
Dell PowerEdge R7525

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Questions sur cet article

Does the 4Rx4 quad-rank design limit how many 128GB modules I can install on a single channel?

Each module is a 4Rx4 Load Reduced DIMM, so the memory controller treats it as a single electrical load per slot; the practical limit is the number of slots your Dell PowerEdge R6525, R750xa or R7525 provides per channel.

What power draw and thermal output should I expect from four 128GB LRDIMMs running at 1.2V continuously?

The kit operates at the standard DDR4 1.2V; total power scales with all four modules active, and because there are no heat spreaders, airflow through the server chassis is the primary cooling path.

My Dell PowerEdge R750xa currently runs registered ECC DIMMs — can I add this LRDIMM kit alongside them?

No; Load Reduced and Registered ECC DIMMs cannot be mixed in the same system, so you must replace all existing modules with this 512GB kit for it to work.

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