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Two green 288-pin DDR4 server DIMMs with black chips, no heat spreaders

A-Tech

A-Tech 256GB (2x128GB) DDR4 2933 ECC LRDIMM 2S4Rx4 288-Pin Server RAM

SKU CH-5SAG-BPD2C

256 GB dual-channel DDR4 server kit with two 128 GB ECC load-reduced DIMMs at 2933 MHz CL21 1.20 V

  • Capacity256GB (2 x 128GB)
  • Type288-Pin DDR4 SDRAM
  • SpeedDDR4 2933 (PC4 23400)
  • CAS LatencyCL21
  • Voltage1.20V
  • ECCYes

Capacity 256GB (2 x 128GB)

  • 256 GB total capacity from two 128 GB modules
  • DDR4 2933 MHz speed for fast data throughput
  • ECC Load Reduced DIMM detects and corrects memory errors
  • 2S4Rx4 octal-rank 3DS/TSV architecture enables high-density scaling
  • 20 V standard DDR4 voltage for efficient operation

Server Memory Kit

This A-Tech kit provides 256GB of DDR4 ECC LRDIMM memory across two 128GB modules. It is built for servers and workstations that require registered load-reduced DIMMs and cannot use standard desktop or laptop memory.

Thermals and Power

Each module operates at the standard DDR4 voltage of 1.20V without a heat spreader. The load-reduced design reduces electrical load on the memory bus, helping to maintain stable thermals and consistent power draw in multi-DIMM server configurations.

Rank and Pin Constraint

The modules use a 2S4Rx4 octal-rank x4 3DS/TSV organisation on a 288-pin interface. This specific rank structure and pin count dictate compatibility; only systems qualified for 8Rx4 LRDIMMs at this density will accept the kit.

Pluspunten

  • 256 GB total capacity from two 128 GB modules
  • DDR4 2933 MHz speed for fast data throughput
  • ECC Load Reduced DIMM detects and corrects memory errors
  • 2S4Rx4 octal-rank 3DS/TSV architecture enables high-density scaling
  • 20 V standard DDR4 voltage for efficient operation

Specificaties

BrandA-Tech
SeriesA-Tech DDR4 Server Memory RAM
ModelA-Tech 128GB 2S4Rx4 PC4-2933Y-L
Part NumberAT128G2D4D2933LO4N12V
Capacity256GB (2 x 128GB)
Type288-Pin DDR4 SDRAM
SpeedDDR4 2933 (PC4 23400)
CAS LatencyCL21
Voltage1.20V
ECCYes
Buffered/RegisteredLoad Reduced
Rank2S4Rx4 (8Rx4 3DS/TSV)
Multi-channel KitDual Channel Kit
ChipsetMajor Brand Chipset
Heat SpreaderNo
FeaturesMajor Brand Chips / Error Correcting Technology for Server Systems

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How do I install the 288-pin DDR4 LRDIMM modules in the correct server memory channels?

Power down the server, open the chassis, and align each 128 GB module with the 288-pin DDR4 slot. Seat both sticks in the matching channel pair indicated by the system manual so the dual-channel kit operates at 2933 MHz with ECC load-reduced buffering.

What maintenance or replacement will the 256 GB ECC LRDIMM kit need over its service life?

The modules have no heat spreaders and no moving parts, so routine maintenance is limited to keeping server airflow clean. If a module fails, the ECC load-reduced design will flag correctable errors; replace the affected 128 GB stick to restore full 256 GB capacity.

What is the first limit that appears when the 2933 MHz LRDIMM kit runs sustained workloads?

The CAS latency of CL21 at 1.20 V sets the timing ceiling; under continuous heavy traffic the memory controller will hit this latency boundary before thermal or voltage limits become a factor.

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