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Green 288-pin DDR4 RDIMM module with black chips and silver contacts

OWC

OWC 256GB DDR4 3200 ECC Registered RDIMM memory upgrade

SKU CH-3WS0-G1HMD

Single 256 GB DDR4 3200 ECC registered RDIMM for Supermicro H12SSW-iN, X12DPG-OA, H11DSi, H11SSL-NC and H12SSW-NT servers

Capacity 256GB

  • Single 256 GB DDR4 module doubles server capacity
  • 3200 MHz CL22 timing keeps data flowing fast
  • ECC registered design catches errors before they crash
  • 2 V operation cuts power draw per DIMM
  • Validated for Supermicro H12SSW-iN, X12DPG-OA, H11DSi, H11SSL-NC, H12SSW-NT

Server-grade ECC upgrade

This OWC module is a 256GB DDR4 3200 ECC Registered RDIMM built for workstations and servers. It is designed for Supermicro motherboards including H12SSW-iN, X12DPG-OA, H11DSi, H11SSL-NC and H12SSW-NT. It will not work in standard desktop computers or alongside unbuffered or load-reduced memory.

Capacity and headroom

A single stick delivers 256GB at PC4-25600 speed with CL22 latency and 8Rx4 organisation. The high density suits virtualisation hosts and large in-memory databases. Systems limited to lower per-slot ceilings or consumer chipsets cannot use this module.

Compliance and support

The DIMM meets JEDEC and RoHS specifications for a warranty-safe installation. OWC backs it with an advanced replacement programme and limited lifetime warranty that includes free technical support. Every unit is tested in-house before it ships.

Points forts

  • Single 256 GB DDR4 module doubles server capacity
  • 3200 MHz CL22 timing keeps data flowing fast
  • ECC registered design catches errors before they crash
  • 2 V operation cuts power draw per DIMM
  • Validated for Supermicro H12SSW-iN, X12DPG-OA, H11DSi, H11SSL-NC, H12SSW-NT

Caractéristiques

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Questions sur cet article

Will this 256GB DDR4 3200 ECC Registered RDIMM work with the existing 32GB RDIMMs in my Supermicro H12SSW-iN?

OWC recommends all DIMMs be the same capacity, speed, and manufacturer for optimal performance; mixing different capacities or ranks may prevent the server from booting or force reduced speeds.

How can I verify the 256GB module is running at 3200 MT/s with ECC active after installation?

Check the BIOS memory information screen for 3200 MT/s speed, CL22 timings, and ECC status enabled; the operating system should also report 256GB with ECC correctable error counters at zero.

Does the package contain only the single 256GB RDIMM or are extra brackets or cables included?

The upgrade consists of a single 256GB DDR4 3200 PC4-25600 CL22 8Rx4 288-pin 1.2V ECC Registered RDIMM module; no brackets, cables, or additional hardware are included.

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