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Eight green 288-pin DDR4 LRDIMM modules in antistatic packaging

OWC

OWC 2TB (8x256GB) DDR4 2933 PC4-23400 CL21 ECC LRDIMM Kit

SKU CH-78RR-GRN4R

Eight 256 GB DDR4-2933 ECC load-reduced DIMMs for Supermicro X11 server and workstation boards

Capacity 2TB (8 x 256GB)

  • 2 TB total capacity from eight 256 GB modules
  • ECC load-reduced design for server and workstation reliability
  • DDR4 2933 MHz CL21 with 1.2 V operation
  • JEDEC and RoHS compliant for warranty-safe upgrades
  • Backward compatible with 2133, 2400 and 2666 MHz systems

2 TB DDR4 ECC LRDIMM Kit for Supermicro Servers

This 2 TB kit contains eight 256 GB DDR4 2933 PC4-23400 CL21 ECC load-reduced DIMMs built for Supermicro motherboards X11DPD-L, X11DPD-M25, X11DPFF-SNR, X11QPL and X11SPA-T. It is designed for servers, workstations and NAS systems that require registered ECC memory with a load-reduced design. The modules operate at 1.2 V and conform to JEDEC and RoHS standards. Desktop computers and consumer platforms cannot use this memory.

Thermals Noise and Power Draw in Normal Use

Each module runs at the standard DDR4 voltage of 1.2 V, keeping power draw low for high-density server configurations. The load-reduced architecture reduces electrical load on the memory controller, which helps maintain stable thermals under sustained workloads. No active cooling is included, so system airflow must be sufficient for dense DIMM populations. Acoustic output is determined by the host chassis fans rather than the memory itself.

8Rx4 Organisation Decides Compatibility

The 8Rx4 rank structure is the single specification that determines whether this kit will work in a given board. Only platforms that support eight-rank load-reduced DIMMs at 288 pins can accept these modules. Mixing with unbuffered or standard registered ECC DIMMs is not supported. Backward compatibility covers 2133, 2400 and 2666 MHz speeds, but the rank organisation must match the motherboard requirements.

Punti di forza

  • 2 TB total capacity from eight 256 GB modules
  • ECC load-reduced design for server and workstation reliability
  • DDR4 2933 MHz CL21 with 1.2 V operation
  • 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 do I install the 288-pin DDR4 LRDIMM modules in my Supermicro X11DPD-L motherboard and what step is commonly missed?

Power down, open the chassis, align each 288-pin module with the slot key and press firmly until both retention clips click; the step often missed is confirming the BIOS recognises all eight 256 GB modules at 2933 MHz after first boot.

What maintenance or replacement will the ECC load-reduced DDR4 kit need over its service life?

No scheduled maintenance is required; if a module fails the limited lifetime warranty covers replacement, and the ECC circuitry continues correcting single-bit errors without user intervention.

What limit appears first when the 2 TB kit runs sustained workloads at 1.2 V?

The memory controller’s maximum supported speed of 2933 MHz (PC4-23400) is the first ceiling; the modules will down-clock to 2666, 2400 or 2133 MHz if the platform cannot sustain the rated frequency.

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