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Green 240-pin DDR3 DIMM with black memory chips and a silver label

SAMSUNG

SAMSUNG M393B1K70DH0-CK0 8GB DDR3 1600 ECC Registered server RAM

SKU CH-5PX3-Y1WTX MPN M393B1K70DH0-CK0

8GB DDR3 1600 ECC Registered server memory module with CL11 latency and 1.50V operation

  • Total capacity8 GB
  • Rated speedDDR3 1600 (PC3 12800)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL11
  • Rated voltage1.5 V
  • Buffer typeRegistered
  • 8 GB capacity expands server memory headroom
  • DDR3 1600 (PC3 12800) delivers 12.8 GB/s bandwidth
  • ECC Registered design detects and corrects data errors
  • CL11 CAS latency keeps response times low
  • 240-pin 1.50 V module fits registered DDR3 slots

Server memory for data-intensive workloads

This 8GB DDR3 module adds registered ECC capacity to compatible server platforms. It operates at 1600MHz with a CAS latency of 11 to deliver 12.8 GB/s bandwidth. The registered design helps reduce electrical load on the memory controller in multi-module configurations.

Sustained throughput with error correction

ECC circuitry detects and corrects single-bit errors during continuous operation without halting the system. Registered buffering stabilises signal integrity across all 240 pins when the memory bus is fully populated. CL11 timing at 1.50V maintains consistent latency under prolonged heavy access patterns.

2Rx4 organisation for dense configurations

The dual-rank x4 layout allows higher total capacity per channel compared to single-rank alternatives. Major-brand DRAM components are validated for 24/7 server environments where uptime is critical. Buyers needing non-ECC unbuffered memory for desktop platforms cannot use this module.

How it compares

Measured against everything we stock in ECC Server RAM, at today’s prices. Recalculated every night.

Price $78.99
Cheaper than about 75% of the 6,523 comparable items (median $188.99).
Total capacity 8 GB
Lower than about 80% of the 6,064 comparable items (median 32 GB).
Price per GB $9.87 per GB
Pricier than about 67% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameSAMSUNG
Model nameM393B1K70DH0-CK0
Total capacity8 GB
Product type240-Pin DDR3 SDRAM
Performance
Rated speedDDR3 1600 (PC3 12800)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL11
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Power
Rated voltage1.5 V
Size & build
Shipping weight0.09 kg
Package size305 × 76 × 25 mm

Questions about this item

How much power does the 1.50V DDR3 1600 module draw under sustained load?

The module operates at the standard 1.50V DDR3 voltage; actual power draw depends on the server platform and workload, but registered DIMMs typically consume slightly more than unbuffered equivalents due to the register.

What motherboard feature is required to use this 240-pin registered ECC memory?

The system must support DDR3 registered ECC DIMMs; consumer boards that only accept unbuffered non-ECC memory will not recognise the module.

Will this CL11 2Rx4 stick work in a server that currently runs CL9 1Rx4 DDR3 1600 modules?

Mixed ranks and latencies are usually supported; the memory controller will run all channels at the slowest common timing, so the new module will operate at CL11 alongside the existing CL9 sticks.

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