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Green rectangular memory module with black chips and silver heat spreader

SAMSUNG

SAMSUNG M386B4G70DM0-CMA 32GB DDR3 1866 ECC Chipkill Load Reduced memory upgrade

SKU CH-44KP-A6ZD7 MPN M386B4G70DM0-CMA

32 GB DDR3 1866 server memory with ECC Chipkill, load-reduced design and CL13 latency

  • Total capacity32 GB
  • Rated speedDDR3 1866 (PC3 14900)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL13
  • Rated voltage1.5 V
  • ECC supportChipkill
  • 32 GB capacity supports large server workloads
  • DDR3 1866 speed delivers PC3 14900 bandwidth
  • ECC Chipkill corrects multi-bit errors automatically
  • Load Reduced design lowers electrical load on memory bus
  • CL13 latency at 1.50 V balances response and stability

Server-ready DDR3 memory module

This 32 GB Samsung module operates at DDR3 1866 with a CAS latency of CL13 and a voltage of 1.50 V. It is built for server platforms that require registered DIMMs. The load-reduced design reduces electrical load on the memory bus.

ECC Chipkill and heat spreader

On-board ECC Chipkill corrects multi-bit errors to protect data integrity in critical workloads. The integrated heat spreader helps maintain stable temperatures during sustained operation. The module uses a 4Rx4 organisation with major brand chipset components.

DDR3 1866 interface limits

The DDR3 1866 standard caps transfer rates at PC3 14900 bandwidth. Systems limited to lower DDR3 speeds will clock this module down automatically. Platforms that do not support load-reduced or ECC Chipkill registered DIMMs cannot use this memory.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $216.99
Cheaper than about 58% of the 21,161 comparable items (median $397.99).
Total capacity 32 GB
Typical for this category: the median of 20,941 items is 32 GB.
Price per GB $6.78 per GB
Cheaper than about 59% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameSAMSUNG
Model nameM386B4G70DM0-CMA
Total capacity32 GB
Performance
Rated speedDDR3 1866 (PC3 14900)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL13
ECC supportChipkill
Buffer typeLoad Reduced
Memory rank4Rx4
Heat spreaderYes
Power
Rated voltage1.5 V
Size & build
Shipping weight0.09 kg
Package size140 × 51 × 13 mm

Questions about this item

Will the 4Rx4 load-reduced ECC Chipkill module need firmware updates or scheduled replacement during its service life?

No firmware updates are required for this DDR3 1866 module; the 32 GB stick is built with a heat spreader and Major Brand Chipset components for long-term server operation.

What limit appears first when the 1.50 V CL13 memory runs at full 1866 MT/s load continuously?

The thermal ceiling of the 4Rx4 load-reduced design is reached before signal timing margins, so sustained throughput is capped by the module's ability to dissipate heat through its spreader.

How much heat and noise does the 32 GB DDR3 1866 stick produce inside a populated server chassis all day?

The module draws 1.50 V with a heat spreader but has no moving parts, so it adds only passive thermal load and zero acoustic noise to the chassis airflow.

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