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Green 240-pin DDR3 server DIMM with black chips, 4GB ECC registered module

A-Tech

A-Tech 4GB DDR3 1866 ECC RDIMM 1Rx4 Server Memory

SKU CH-SEKG-CXJQ0

4GB DDR3 1866 ECC registered server DIMM with Samsung chipset, CL13 latency and 1.5V operation

  • Total capacity4 GB
  • Rated speedDDR3 1866 (PC3 14900)
  • ChipsetSamsung Chipset
  • CAS latencyCL13
  • Rated voltage1.5 V
  • Buffer typeRegistered
  • ECC protection guards data integrity with registered DDR3 1866 operation
  • CL13 latency and 1.5V voltage deliver stable server performance
  • 1Rx4 rank on 240-pin DIMM fits compatible Samsung M393B5270QB0-CMA slots
  • Samsung chipset ensures reliable 4GB module quality
  • Quality testing and lifetime warranty back dependable server upgrades

Server ECC RDIMM for Samsung replacement

This 4GB DDR3 registered module operates at 1866MHz with CL13 latency and 1.5V standard voltage. It uses a 1Rx4 configuration with Samsung chipset and fits 240-pin DIMM slots. Designed as a compatible replacement for Samsung M393B5270QB0-CMA in server and workstation systems.

Thermals and power in normal use

Standard 1.5V DDR3 voltage keeps power draw low during typical server workloads. Registered buffering reduces electrical load on the memory controller for stable operation. No active cooling is required on the module itself under normal conditions.

Deciding specification — registered ECC

The module is an ECC RDIMM with registered buffering; it will not work in platforms that require unbuffered non-ECC UDIMMs. Verify your system specifically supports registered ECC DDR3 before purchase. Builders needing unbuffered memory or a different DDR generation must select another part.

How it compares

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

Price $29.99
Cheaper than about 90% 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 $7.50 per GB
Typical for this category: the median of 6,064 items is $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
Product lineCompatible Replacement for Samsung
Model nameM393B5270QB0-CMA
Total capacity4 GB
Performance
Rated speedDDR3 1866 (PC3 14900)
Processor
ChipsetSamsung Chipset
Memory
CAS latencyCL13
ECC supportYes
Buffer typeRegistered
Memory rank1Rx4
Power
Rated voltage1.5 V

Questions about this item

How do I install this 240-pin DDR3 RDIMM and which step do people often miss?

Align the notch on the module with the slot key, press firmly until both side clips click shut, and verify the system registers the full 4 GB capacity at 1866 MHz in BIOS.

What maintenance or replacement will this ECC RDIMM need later?

No routine maintenance is required; if a correctable error count rises over time, replace the module to maintain data integrity.

What limit appears first under sustained load with this 1.5 V CL13 module?

The registered buffer adds one cycle of latency, so memory-controller throughput ceiling is reached before the DRAM chips hit thermal limits.

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