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Two green 288-pin DDR4 LRDIMM sticks with gold contacts and black chips

OWC

OWC 512GB (2×256GB) DDR4 3200 CL22 ECC LRDIMM 288-pin 1.2V Dell PowerEdge XR11 XR12 memory upgrade

SKU CH-33FQ-KNZ2Z

Dual 256 GB DDR4 3200 CL22 ECC load-reduced DIMMs totalling 512 GB for Dell PowerEdge XR11 and XR12 servers

Capacity 512GB (2 x 256GB)

  • ECC load-reduced design protects data integrity in servers
  • 512GB kit (2×256GB) maximises capacity for Dell PowerEdge XR11 and XR12
  • DDR4 3200 CL22 at 1.2V delivers JEDEC-standard performance
  • Backward compatible with 2133, 2400, 2666 and 2933MHz systems
  • 288-pin LRDIMM form factor ensures correct slot fit

Kit contents and purpose

This kit provides 512GB of DDR4 memory in two 256GB modules. It is built as ECC Load Reduced DIMMs for server and workstation platforms. The memory runs at 3200MHz with CL22 timing at 1.2V. It is validated for Dell PowerEdge XR11 and XR12 systems.

Who this suits and who it does not

This upgrade fits administrators expanding Dell PowerEdge XR11 or XR12 servers that support LRDIMM memory. It will not work in standard desktop computers. It cannot be mixed with unbuffered or registered ECC modules. Buyers needing non-ECC memory or smaller capacities should look elsewhere.

Deciding specification

The modules use a 288-pin ECC Load Reduced DIMM form factor with 8Rx4 organisation. This physical and electrical design determines whether the memory installs and operates correctly in the target server. Confirm the platform requires LRDIMM before purchasing.

Points forts

  • ECC load-reduced design protects data integrity in servers
  • 512GB kit (2×256GB) maximises capacity for Dell PowerEdge XR11 and XR12
  • DDR4 3200 CL22 at 1.2V delivers JEDEC-standard performance
  • Backward compatible with 2133, 2400, 2666 and 2933MHz systems
  • 288-pin LRDIMM form factor ensures correct slot fit

Caractéristiques

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Questions sur cet article

How do I install the 288-pin LRDIMM modules in my Dell PowerEdge XR11 or XR12, and what is the common mistake?

Power down the server and open the chassis. Align each 288-pin LRDIMM with its slot, ensuring the notch matches the key, then press firmly until the ejector clips click. The step people get wrong is mixing these ECC Load Reduced modules with unbuffered or registered DIMMs, which prevents the system from booting.

What maintenance or replacement will the 512GB DDR4 3200 kit need over its service life?

The modules themselves require no scheduled maintenance. Keep the server air filters clean so the 1.2V DIMMs stay within thermal limits. Replacement is only necessary if a module fails or if a future CPU upgrade demands a faster speed than the 3200MHz CL22 rating provides.

What limit appears first when the 2×256GB CL22 kit runs sustained workloads?

The CAS latency of 22 cycles at 3200MHz sets the access latency floor. Under continuous heavy load the memory controller hits this timing boundary before bandwidth or voltage headroom becomes a bottleneck.

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