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Two green DDR4 RDIMM modules, black chips, gold contacts

OWC

OWC 512GB DDR4 3200 ECC Reg RDIMM 2x256GB Kit

SKU CH-2WSB-D4FG5

A 512 GB DDR4 3200 ECC Registered RDIMM kit of two 256 GB modules for compatible Supermicro H12SSL and H12SSW motherboards

Capacity 512GB (2 x 256GB)

  • Massive 512GB capacity from two 256GB modules
  • DDR4 3200 speed with CL22 latency
  • ECC registered RDIMM for server reliability
  • 8Rx4 octal-rank 288-pin 1.2V design
  • Validated for Supermicro H12SSL and H12SSW motherboards

512GB ECC Registered Kit

This 512GB kit delivers two 256GB DDR4 3200 ECC Registered RDIMMs built for Supermicro H12SSL and H12SSW server motherboards. It targets administrators upgrading workstation or server platforms that require registered memory with error correction. The modules will not work in standard desktop computers or alongside unbuffered or load-reduced DIMMs.

Capacity and Headroom

Each module provides 256GB at PC4-25600 speed with CL22 latency and octal-rank organisation, giving a combined 512GB for memory-intensive server workloads. The 1.2V operation and 288-pin form factor match the qualified Supermicro part numbers listed. Headroom ends when the platform's maximum supported memory per socket or total DIMM slots are reached.

DDR4 3200 Registered Limits

The DDR4 3200 registered interface runs at 1.2V and follows JEDEC PC4-25600 specifications for signal integrity. Registered buffering adds one clock cycle of latency but allows higher densities than unbuffered alternatives. Mixing with unbuffered or load-reduced modules is not supported and will prevent boot or cause instability.

Points forts

  • Massive 512GB capacity from two 256GB modules
  • DDR4 3200 speed with CL22 latency
  • ECC registered RDIMM for server reliability
  • 8Rx4 octal-rank 288-pin 1.2V design
  • Validated for Supermicro H12SSL and H12SSW motherboards

Caractéristiques

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Questions sur cet article

Can I add these 256 GB ECC Registered RDIMMs to existing DDR4 3200 modules in my Supermicro H12SSL-i?

These 8Rx4 registered DIMMs must not be mixed with unbuffered or load-reduced memory; all installed modules should match in capacity, speed and type for stable operation.

How can I verify the kit is running at PC4-25600 CL22 after installation?

Check the BIOS or UEFI memory information screen; it should report DDR4 3200 MT/s, CAS latency 22 and the full 512 GB capacity across both slots.

What comes in the box and what else do I need to buy?

The kit includes two 256 GB 288-pin ECC Registered RDIMMs; no cables, brackets or additional components are required for installation in compatible Supermicro motherboards.

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