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Green rectangular DDR4 memory module with gold edge connectors and black chips on both sides

OWC

OWC 16GB DDR4 3200MHz ECC Registered RDIMM 2Rx8 CL22 1.2V 288-pin Dell PowerEdge

SKU CH-SCM9-E6W91

16GB DDR4 3200MHz ECC Registered RDIMM for Dell PowerEdge C6520, C6525, MX750c, R650 and R650xs servers

  • Capacity16GB
  • Type288-Pin DDR4 ECC RDIMM
  • SpeedDDR4 3200 (PC4 25600)
  • CAS LatencyCL22
  • Voltage1.2V
  • ECCYes

Capacity 16GB

  • ECC registered design protects data integrity in Dell PowerEdge servers
  • 16GB DDR4 3200MHz CL22 module expands memory capacity for virtualization workloads
  • 2V operation reduces power draw in C6520, C6525, MX750c, R650, R650xs systems
  • 2Rx8 dual-rank layout increases bandwidth for multi-threaded applications
  • Replaces Dell part numbers AA783421, AA799064, AA810826, AB214251, M04W6, SNPM04W6C/16G, SNPM04W6C/16VXR

Compatible Dell PowerEdge servers

This 16GB DDR4 3200MHz ECC registered RDIMM is validated for Dell PowerEdge C6520, C6525, MX750c, R650 and R650xs systems. It replaces Dell part numbers AA783421, AA799064, AA810826, AB214251, M04W6, SNPM04W6C/16G and SNPM04W6C/16VXR. Buyers who need unbuffered memory for standard desktop computers cannot use this module.

Thermals noise and power

The module operates at 1.2V without a heat spreader, relying on the server chassis airflow for cooling. Registered ECC design adds minimal latency at CL22 while maintaining data integrity under continuous workloads. Power draw scales with capacity and rank configuration in the populated slots.

Registered ECC requirement

This memory is registered ECC DDR4 and will not function in platforms that require unbuffered non-ECC modules. It also cannot be mixed with unbuffered memory in the same system. Verify your server manual calls for registered ECC RDIMMs before purchase.

Puntos fuertes

  • ECC registered design protects data integrity in Dell PowerEdge servers
  • 16GB DDR4 3200MHz CL22 module expands memory capacity for virtualization workloads
  • 2V operation reduces power draw in C6520, C6525, MX750c, R650, R650xs systems
  • 2Rx8 dual-rank layout increases bandwidth for multi-threaded applications
  • Replaces Dell part numbers AA783421, AA799064, AA810826, AB214251, M04W6, SNPM04W6C/16G, SNPM04W6C/16VXR

Especificaciones

BrandOWC
Part Number3R2D42R816GB
Capacity16GB
Type288-Pin DDR4 ECC RDIMM
SpeedDDR4 3200 (PC4 25600)
CAS LatencyCL22
Voltage1.2V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx8
Heat SpreaderNo
Compatible SystemDell PowerEdge C6520
Dell PowerEdge C6525
Dell PowerEdge MX750c
Dell PowerEdge R650
Dell PowerEdge R650xs

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Preguntas sobre este artículo

How do I install the 288-pin DDR4 RDIMM in my Dell PowerEdge R650, and what step do people often miss?

Power down the server, open the chassis, align the notch on the 288-pin module with the slot key, press firmly until both retention clips click, then verify in BIOS that the 16GB module is detected at 3200MHz; the step often missed is ensuring all populated channels use identical 2Rx8 registered DIMMs.

What maintenance or replacement will this ECC registered memory need over time?

No routine maintenance is required; if a correctable error count rises or the module fails POST, replace it with another 16GB DDR4 3200MHz CL22 1.2V 2Rx8 RDIMM — mixing with unbuffered DIMMs is not supported.

What limit appears first when this RDIMM runs sustained workloads in a PowerEdge C6525?

The CAS latency of CL22 at 3200MHz sets the timing ceiling; sustained throughput is bounded by the DDR4 25600 transfer rate and the registered buffer, so latency-sensitive tasks hit the CL22 wall before bandwidth saturates.

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