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Green circuit board with black memory chips and gold edge connector

OWC

OWC 256GB DDR4 3200 CL22 8Rx4 288-pin 1.2V ECC LRDIMM server RAM Supermicro MEMDR425LSL01LR32

SKU CH-AHS4-503EA

256 GB DDR4 ECC load-reduced DIMM running at 3200 MHz CL22 for servers, workstations and NAS systems

  • 256 GB DDR4 module expands server memory capacity
  • 3200 MHz CL22 speed accelerates data-intensive workloads
  • ECC load-reduced design maintains signal integrity at scale
  • 2 V operation reduces power draw per DIMM
  • Backward compatible with 2133, 2400, 2666 and 2933 MHz systems

High-Capacity ECC Load-Reduced DIMM

This 256GB DDR4 module runs at 3200MHz with CL22 timing and operates at 1.2V. It uses an 8Rx4 organisation and a 288-pin LRDIMM form factor designed for server, workstation and NAS platforms. The module carries JEDEC and ROHS compliance for warranty-safe upgrades.

Build Integration and Compatibility

The memory fits 288-pin DDR4 slots that accept load-reduced ECC DIMMs and will not work with unbuffered or registered ECC modules. It is backward compatible with 2133MHz, 2400MHz, 2666MHz and 2933MHz bus speeds, allowing it to slot into mixed-speed configurations. Buyers whose systems require unbuffered or standard registered ECC memory cannot use this module.

Sustained Load Behaviour

ECC load-reduced architecture reduces electrical loading on the memory bus, helping maintain signal integrity when all ranks are active under continuous workloads. The 1.2V operating voltage supports stable operation during extended duty cycles in multi-socket servers. The module is tested to meet OEM specifications for long-term deployment.

Puntos fuertes

  • 256 GB DDR4 module expands server memory capacity
  • 3200 MHz CL22 speed accelerates data-intensive workloads
  • ECC load-reduced design maintains signal integrity at scale
  • 2 V operation reduces power draw per DIMM
  • Backward compatible with 2133, 2400, 2666 and 2933 MHz systems

Especificaciones

Aún no hay especificaciones publicadas para este artículo.

Preguntas sobre este artículo

Will the 256GB capacity hit a platform limit before the 3200MHz speed does?

This module is a 256GB DDR4 LRDIMM; the maximum usable capacity depends on the server or workstation memory controller and BIOS, so check the system documentation for the supported limit per slot.

How much heat and power does a 1.2V 8Rx4 LRDIMM produce under continuous load?

The module runs at 1.2V with an 8Rx4 organisation; actual thermal output and power draw vary with workload and system airflow, so monitor temperatures in your chassis.

Does my motherboard need 288-pin DDR4 slots that support ECC load-reduced DIMMs?

Yes, the module requires a 288-pin DDR4 slot with chipset and BIOS support for ECC load-reduced memory; it will not work with unbuffered or standard registered DIMMs.

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