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Two black DDR4 LRDIMM modules with gold contacts and silver heat spreaders

A-Tech

A-Tech 256GB Kit (2x128GB) DDR4 2933 ECC LRDIMM for Mac Pro 2019

SKU CH-XW1T-DAG4N

A 256 GB DDR4 2933 ECC LRDIMM kit built for 2019 Mac Pro 24-core and 28-core models

  • Capacity256GB (2 x 128GB)
  • SpeedDDR4 2933 (PC4 23400)
  • Voltage1.20V
  • ECCYes
  • Buffered/RegisteredLoad Reduced
  • ChipsetMajor Brand Chipset
  • 256GB capacity across two 128GB modules handles heavy workloads
  • DDR4 2933MHz PC4-23400 speed matches Mac Pro 2019 specs
  • ECC Load Reduced design protects data integrity on Xeon systems
  • 288-pin LRDIMM form factor fits MacPro7,1 tower and rack
  • Lifetime warranty with US-based tech support backs every kit

256GB DDR4 2933 ECC LRDIMM Kit

This 256GB kit contains two 128GB modules built to DDR4 2933 (PC4-23400) with ECC Load Reduced technology. It is designed for Apple Mac Pro 2019 tower and rack models carrying 24-core or 28-core Xeon processors.

Suited for 24-core and 28-core Mac Pro 2019

Buyers with a MacPro7,1 (A1991 or A2304) running a 2.5GHz Xeon W-3275M or 2.7GHz Xeon W-3265M can install this kit directly. Systems with lower core counts, earlier Mac Pro generations, or non-Apple workstations cannot use these modules.

ECC Load Reduced LRDIMM specification

The modules operate at 1.20V as 288-pin LRDIMMs with a 2S4Rx4 rank structure. This specific ECC Load Reduced form factor is the single requirement that determines compatibility with the target Mac Pro memory architecture.

Puntos fuertes

  • 256GB capacity across two 128GB modules handles heavy workloads
  • DDR4 2933MHz PC4-23400 speed matches Mac Pro 2019 specs
  • ECC Load Reduced design protects data integrity on Xeon systems
  • 288-pin LRDIMM form factor fits MacPro7,1 tower and rack
  • Lifetime warranty with US-based tech support backs every kit

Especificaciones

BrandA-Tech
SeriesA-Tech DDR4 Apple Mac RAM Memory Upgrades
Capacity256GB (2 x 128GB)
SpeedDDR4 2933 (PC4 23400)
Voltage1.20V
ECCYes
Buffered/RegisteredLoad Reduced
ChipsetMajor Brand Chipset
Compatible SystemApple Mac Systems
FeaturesMajor Brand Chips

Preguntas sobre este artículo

How do I install the 288-pin DDR4 LRDIMM modules into the Mac Pro 2019 memory slots?

Power down the Mac Pro 2019, open the enclosure, and press each 288-pin LRDIMM firmly into an empty slot until the ejectors click. The common mistake is stopping before the full click, leaving the module partially seated.

Will the ECC Load Reduced chips or major-brand chipset need replacement during the system's life?

The ECC LRDIMM modules use major-brand chips tested to stringent standards and carry a lifetime warranty. No scheduled chipset or memory replacement is required under normal operation.

At what point does the 1.20V voltage or 2933 MHz speed become the limiting factor under sustained heavy workloads?

The memory runs at a fixed 1.20V and 2933 MHz (PC4-23400). Under sustained load the first limit encountered is the Mac Pro's thermal management, which may throttle CPU frequency before memory voltage or speed becomes a bottleneck.

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