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Green rectangular DDR4 LRDIMM module with black chips and gold contacts

SAMSUNG

SAMSUNG M386A4G40DM0-CPB 32GB DDR4 2133 LRDIMM desktop RAM

SKU CH-ARV9-R394D

32 GB DDR4 2133 LRDIMM with ECC and 4Rx4 organisation for high-capacity desktop systems

  • 32 GB capacity for high-density server workloads
  • DDR4 2133 MHz speed rated at PC4-17000L
  • Load-reduced DIMM design lowers electrical load on memory bus
  • ECC error correction protects data integrity in critical applications
  • 2 V operation reduces power consumption per module

Capacity and Form Factor

This Samsung DDR4 module delivers 32GB of memory in a 288-pin LRDIMM package built for desktop platforms. The load-reduced design places an integrated buffer on the data bus to lessen electrical load on the memory controller. Operating at 1.2V, the stick uses 36 FBGA DRAMs organised as 4Gx72 with four ranks. The PC4-17000L rating confirms a 2133MHz data rate for standard throughput.

Suited Builds and Limitations

Workstations and servers that require high-density ECC memory with registered signalling will benefit from this module. The 4Rx4 organisation and iMB extension support error-correcting code for data integrity in critical workloads. Systems limited to standard unbuffered UDIMM slots cannot accept this LRDIMM form factor. Buyers needing non-ECC memory or lower-profile heights should look at other options.

Deciding Specification

The LRDIMM construction with four ranks and ECC is the single attribute that determines compatibility. Only motherboards and chipsets qualified for load-reduced registered DIMMs will initialise this memory correctly. Verify the platform documentation for LRDIMM support before purchase.

Punti di forza

  • 32 GB capacity for high-density server workloads
  • DDR4 2133 MHz speed rated at PC4-17000L
  • Load-reduced DIMM design lowers electrical load on memory bus
  • ECC error correction protects data integrity in critical applications
  • 2 V operation reduces power consumption per module

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Domande su questo articolo

Does the Samsung M386A4G40DM0-CPB come with a heatsink or must one be bought separately?

The module is supplied bare, without a heatsink; if your chassis or workload demands active cooling you will need to purchase a compatible aftermarket spreader.

Should I choose the 32 GB 4Rx4 LRDIMM or a lower-capacity alternative for my server board?

Pick this 32 GB 4Rx4 LRDIMM when the platform supports load-reduced DIMMs and you need maximum density per slot; otherwise a standard RDIMM of lower capacity may be required.

What does the 2133 MHz rating deliver once the DIMM is installed in a live system?

At 2133 MHz the stick runs at PC4-17000L bandwidth with 1.2 V operation, providing ECC error correction and four ranks of 2Gx4 DRAM for stable server workloads.

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