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Green circuit board with black memory chips and gold edge connector

A-Tech

A-Tech 8GB DDR3 1866MHz PC3-14900 ECC RDIMM 1Rx4 Server Memory

SKU CH-JNH8-QJJQ2

8GB DDR3 1866MHz ECC RDIMM replacement for Samsung M393B1G70BH0-CMA, M393B1G70DB0-CMA, M393B1G70EB0-CMA, M393B1G70QH0-CMA with CL13 latency and 1.5V operation

  • Total capacity8 GB
  • Rated speedDDR3 1866 (PC3 14900)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL13
  • Rated voltage1.5 V
  • Buffer typeRegistered
  • ECC protection guards data integrity with registered DDR3 design
  • 1866 MHz speed accelerates server workloads at PC3-14900 bandwidth
  • CL13 latency at 1.5V voltage balances responsiveness and stability
  • 240-pin DIMM form factor fits standard server memory slots
  • Samsung M393B1G70 series compatibility simplifies drop-in replacement

Server ECC RDIMM for registered platforms

This 8 GB DDR3 module runs at 1866 MHz with PC3-14900 bandwidth and CL13 latency. It uses a registered design with ECC and a 1Rx4 organisation, operating at the standard 1.5 V. The 240-pin DIMM fits server and workstation boards that require registered memory.

Fits registered DDR3 slots.

The stick needs a motherboard that supports registered ECC DDR3; it will not work in consumer boards that only accept unbuffered modules. Using registered memory removes the electrical load of multiple ranks from the memory controller, allowing larger total capacities across populated slots.

Standard voltage keeps thermals modest

At 1.5 V the module draws typical DDR3 power without elevated heat, so standard server airflow is sufficient. Registered buffering adds negligible latency while the ECC logic corrects single-bit errors transparently, maintaining stability under sustained workloads.

How it compares

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

Price $31.99
Cheaper than about 90% 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 $4.00 per GB
Cheaper than about 81% of the 6,064 comparable items (median $7.25 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameA-Tech
Total capacity8 GB
Performance
Rated speedDDR3 1866 (PC3 14900)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL13
ECC supportYes
Buffer typeRegistered
Memory rank1Rx4
Power
Rated voltage1.5 V

Questions about this item

What is the CAS latency of this DDR3 1866MHz ECC RDIMM?

The module runs at CL13 latency, which is the timing figure listed for this 1866 MHz PC3-14900 registered DIMM.

How much power does the 1.50V registered DIMM draw under continuous server workloads?

It operates at the standard DDR3 voltage of 1.50V; registered buffering adds negligible extra draw compared with unbuffered modules of the same speed.

Which motherboard slot and chipset features are required for this 240-pin registered ECC module?

A DDR3 240-pin DIMM slot that supports registered ECC memory is required; consumer boards without registered support will not work.

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