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A green 288-pin DDR4 LRDIMM module without a heat spreader

A-Tech

A-Tech 128GB DDR4 3200MHz ECC LRDIMM CL22 1.2V Server Memory

SKU CH-0X22-R7NGC

128GB DDR4 3200MHz ECC LRDIMM module with CL22 latency and 1.2V operation for compatible servers

  • Capacity128GB
  • Type288-Pin DDR4 SDRAM
  • SpeedDDR4 3200 (PC4 25600)
  • CAS LatencyCL22
  • Voltage1.20V
  • ECCYes
  • High 128GB capacity supports demanding server workloads
  • DDR4 3200MHz speed delivers fast data throughput
  • ECC LRDIMM technology corrects errors for reliable operation
  • CL22 latency at 1.2V balances performance and efficiency
  • Direct replacement for Samsung M386AAG40MM2-CWE and related part numbers

128GB DDR4 LRDIMM for Servers

This 128GB DDR4 load-reduced DIMM runs at 3200MHz with CL22 latency and 1.2V operation. It targets server administrators who need high-density ECC memory for virtualisation hosts or database nodes. The single-module design simplifies capacity scaling in qualified platforms.

288-pin registered form factor

The module uses a standard 288-pin DDR4 interface with load-reduced buffering to reduce electrical load on the memory bus. Major-brand chipsets provide the ECC function without a heat spreader, so airflow in the server chassis must be sufficient for passive cooling. The physical layout matches the Samsung M386AAG40MM2-CWE, M386AAG40AM3-CWE and M386AAG40BM3-CWE part numbers listed.

Verify LRDIMM support and rank limits

Confirm that your server platform accepts DDR4 LRDIMM modules and supports 4DRx4 or 4Rx4 rank configurations at this capacity. Check the system documentation for maximum memory per slot and total population rules before ordering. Mixing with other DIMM types or ranks may prevent the system from booting.

Puntos fuertes

  • High 128GB capacity supports demanding server workloads
  • DDR4 3200MHz speed delivers fast data throughput
  • ECC LRDIMM technology corrects errors for reliable operation
  • CL22 latency at 1.2V balances performance and efficiency
  • Direct replacement for Samsung M386AAG40MM2-CWE and related part numbers

Especificaciones

BrandA-Tech
SeriesSamsung RAM Equivalent Replacement Memory
ModelM386AAG40MM2-CWE, M386AAG40AM3-CWE, M386AAG40BM3-CWE
Part NumberM386AAG40MM2-CWE, M386AAG40AM3-CWE, M386AAG40BM3-CWE
Capacity128GB
Type288-Pin DDR4 SDRAM
SpeedDDR4 3200 (PC4 25600)
CAS LatencyCL22
Voltage1.20V
ECCYes
Buffered/RegisteredLoad Reduced
Rank4DRx4/4Rx4
ChipsetMajor Brand Chipset
Heat SpreaderNo
FeaturesEquivalent Replacement for Samsung M386AAG40MM2-CWE, M386AAG40AM3-CWE, M386AAG40BM3-CWE

Preguntas sobre este artículo

What DDR4 speed and PC4 rating does this 128GB module run at?

This module operates at DDR4 3200 MHz, which corresponds to a PC4-25600 data rate.

What physical slot and pin count does this LRDIMM require?

It uses a standard 288-pin DDR4 DIMM slot, the same form factor used by registered and unbuffered DDR4 server memory.

How is this ECC LRDIMM installed, and what common step is missed?

Align the notch on the module with the key in the 288-pin slot, press firmly until both retention clips click shut, then verify in BIOS that the system recognises the full 128 GB capacity.

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