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Green 240-pin DDR3 ECC registered DIMM with black chips

A-Tech

A-Tech 4GB DDR3 1866MHz ECC RDIMM 1Rx4 CL13 1.5V 240-Pin Server Memory

SKU CH-QXFQ-32EB3

4GB DDR3 1866MHz ECC registered DIMM with CL13 latency and 1.5V operation for server upgrades

  • Capacity4GB
  • SpeedDDR3 1866 (PC3 14900)
  • CAS LatencyCL13
  • Voltage1.50V
  • ECCYes
  • Buffered/RegisteredRegistered
  • 4GB capacity expands server multitasking headroom
  • 1866MHz DDR3 speed accelerates data throughput
  • ECC RDIMM detects and corrects memory errors
  • CL13 latency at 1.5V balances responsiveness with efficiency
  • 240-pin registered DIMM fits compatible server slots

Server Memory Upgrade

This 4GB DDR3 1866MHz ECC RDIMM module is designed for server and workstation systems that require registered memory with error correction. It replaces the Hynix HMT351R7EFR4C-RD part number and fits 240-pin DIMM slots operating at 1.5V standard voltage. The single-rank 1Rx4 organisation uses major-brand chipsets to deliver dependable capacity for compatible platforms.

Sustained Load Behaviour

Registered buffering and ECC circuitry maintain data integrity during continuous workloads such as virtualisation, database tasks or long rendering jobs. The CL13 latency and PC3-14900 bandwidth provide steady throughput without the error accumulation that can affect non-ECC modules under prolonged stress. Testing validates reliable operation across extended duty cycles in qualified systems.

Thermals and Power

Standard 1.5V DDR3 voltage keeps power draw consistent with the DDR3 specification for registered DIMMs. The module operates within normal server thermal envelopes without requiring additional airflow beyond typical chassis cooling. No exotic cooling or elevated voltage is needed, so acoustic profile matches other registered memory in the same chassis.

Highlights

  • 4GB capacity expands server multitasking headroom
  • 1866MHz DDR3 speed accelerates data throughput
  • ECC RDIMM detects and corrects memory errors
  • CL13 latency at 1.5V balances responsiveness with efficiency
  • 240-pin registered DIMM fits compatible server slots

Specifications

BrandA-Tech
SeriesCompatible Replacement for Hynix
ModelHMT351R7EFR4C-RD
Capacity4GB
SpeedDDR3 1866 (PC3 14900)
CAS LatencyCL13
Voltage1.50V
ECCYes
Buffered/RegisteredRegistered
Rank1Rx4
ChipsetMajor Brand Chipset
FeaturesHMT351R7EFR4C-RD

Questions about this item

How much heat and power does a 1.5 V DDR3 1866 MHz registered DIMM add when running continuously?

At the standard 1.5 V DDR3 voltage this 4 GB module draws only modest power, so heat output stays low enough for normal server airflow even under all-day workloads.

What motherboard slot and memory controller features are required to use this 240-pin ECC RDIMM?

You need a DDR3 DIMM socket that accepts 240-pin registered modules and a memory controller that supports ECC and registered operation.

Can this DDR3 1866 MHz CL13 1Rx4 module share a channel with older DDR3 DIMMs of different speed or rank?

Yes, the memory controller will down-clock all modules to the slowest speed and highest latency present, so mixing is possible but overall bandwidth drops to the lowest common spec.

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