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Two green 288-pin DDR4 LRDIMM modules with black chips

OWC

OWC 512GB (2x256GB) DDR4 2933 CL21 ECC Load Reduced LRDIMM memory upgrade

SKU CH-EHMZ-1QFJH

A 512 GB DDR4 2933 CL21 ECC load-reduced LRDIMM kit for compatible Supermicro servers and workstations

Capacity 512GB (2 x 256GB)

  • ECC load-reduced design protects data integrity in servers
  • 512 GB total capacity with two 256 GB modules
  • DDR4 2933 MHz CL21 speed for responsive performance
  • JEDEC and RoHS compliant for warranty-safe upgrades
  • Backward compatible with 2133, 2400 and 2666 MHz systems

Server-grade capacity

This OWC kit delivers 512GB of DDR4 ECC load-reduced memory in two 256GB modules. It is built for Supermicro X11DPD-L, X11DPD-M25, X11DPFF-SNR, X11QPL and X11SPA-T motherboards in workstation and server roles. The modules run at 2933MHz with CL21 latency and 1.2V operation. They are not compatible with standard desktop computers.

Platform integration

Each 288-pin LRDIMM reduces electrical load on the memory controller, allowing higher density per channel on supported Supermicro platforms. The memory is backward compatible with 2133MHz, 2400MHz and 2666MHz bus speeds. It cannot be mixed with unbuffered or registered ECC DIMMs, so the full array must use matching load-reduced modules.

Ideal fit and limits

This upgrade suits administrators extending the life of existing Supermicro X11 servers or building new high-capacity nodes. Buyers who need memory for consumer desktops, laptops or non-LRDIMM platforms should look elsewhere. Systems that require registered ECC or unbuffered DIMMs cannot use these modules.

Punti di forza

  • ECC load-reduced design protects data integrity in servers
  • 512 GB total capacity with two 256 GB modules
  • DDR4 2933 MHz CL21 speed for responsive performance
  • JEDEC and RoHS compliant for warranty-safe upgrades
  • Backward compatible with 2133, 2400 and 2666 MHz systems

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Domande su questo articolo

How does the 2933 MHz speed and CL21 latency affect sustained throughput in a server workload?

The modules run at 2933 MHz with CL21 latency; sustained throughput is limited by the DDR4 bus bandwidth and the CAS latency figure.

What thermal or power behaviour should I expect from the 1.2 V LRDIMMs running continuously?

Each DIMM operates at 1.2 V; the load-reduced design lowers electrical load on the memory controller, reducing heat during all-day operation.

Which motherboard models must I already have for this 288-pin ECC LRDIMM kit to function?

The kit is validated for Supermicro X11DPD-L, X11DPD-M25, X11DPFF-SNR, X11QPL and X11SPA-T motherboards.

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