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Green rectangular circuit board with gold edge connectors and black memory chips

A-Tech

A-Tech 4GB DDR3 1866 ECC RDIMM 2Rx8 CL13 1.5V server RAM

SKU CH-6G9N-W1C5G

4 GB DDR3 1866 ECC registered server memory module with CL13 latency and 1.5 V operation

  • Total capacity4 GB
  • Rated speedDDR3 1866 (PC3 14900)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL13
  • Rated voltage1.5 V
  • Buffer typeRegistered
  • 4GB DDR3 1866 boosts server responsiveness with PC3-14900 speed
  • ECC RDIMM with 2Rx8 rank protects data integrity in critical workloads
  • CL13 latency at 1.5V standard voltage ensures stable registered operation
  • 240-pin DIMM replaces Samsung M393B5270DH0-CMA and M393B5273DH0-CMA modules
  • Major-brand chipset and chips deliver tested reliability for workstation upgrades

A-Tech 4GB DDR3 1866 ECC RDIMM

This A-Tech module is a 4GB DDR3 1866MHz registered DIMM with ECC and a 2Rx8 organisation. It operates at the standard 1.5V and carries a CL13 latency rating. The 240-pin form factor fits server and workstation boards that require registered memory.

Suited for servers needing registered ECC modules

The registered design and ECC function make this module appropriate for platforms that require buffered, error-correcting memory. Systems that accept only unbuffered UDIMMs or that are limited to single-rank configurations will not support this 2Rx8 registered DIMM.

Registered ECC with 2Rx8 organisation

The combination of registered signalling, ECC capability and a dual-rank 2Rx8 layout is the specification that determines whether this module will work in a given server. Verify that the system board explicitly supports registered ECC DDR3 DIMMs with this rank configuration before purchasing.

How it compares

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

Price $21.99
Cheaper than about 94% of the 6,523 comparable items (median $188.99).
Total capacity 4 GB
Lower than about 95% of the 6,064 comparable items (median 32 GB).
Price per GB $5.50 per GB
Cheaper than about 69% 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 capacity4 GB
Performance
Rated speedDDR3 1866 (PC3 14900)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL13
ECC supportYes
Buffer typeRegistered
Memory rank2Rx8
Power
Rated voltage1.5 V

Questions about this item

Does my motherboard need a 240-pin DDR3 slot that supports 1.5 V registered ECC modules?

Yes — this module is a 240-pin DDR3 DIMM that runs at 1.5 V and requires a slot wired for registered ECC operation.

If I add this 1866 MHz stick to slower DDR3 modules, what speed will the system run at?

The memory controller will clock all installed modules down to the lowest common speed, so this 1866 MHz stick will run at the speed of the slowest module present.

How can I confirm the module is detected as 4 GB ECC registered at 1866 MHz with CL13 timings?

Check the BIOS memory summary or run a tool such as CPU-Z; it should show 4 GB, ECC registered, 1866 MHz (PC3-14900) and CAS latency 13.

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