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

A-Tech

A-Tech 4GB DDR3 1866MHz ECC RDIMM 1Rx8 Server RAM

SKU CH-EHGG-AXCKY

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

  • Capacity4GB
  • SpeedDDR3 1866 (PC3 14900)
  • CAS LatencyCL13
  • Voltage1.50V
  • ECCYes
  • Buffered/RegisteredRegistered
  • ECC protection prevents data corruption in critical server workloads
  • Registered design reduces electrical load for stable multi-module operation
  • DDR3 1866MHz speed delivers PC3-14900 bandwidth for responsive performance
  • 1Rx8 single-rank layout simplifies memory controller scheduling
  • 5V standard voltage ensures broad DDR3 platform compatibility

4GB DDR3 1866MHz ECC RDIMM for servers

This 4GB registered DIMM runs at DDR3 1866MHz (PC3-14900) with CL13 latency and 1.50V operation. It uses a 1Rx8 organisation and major-brand chips on a 240-pin form factor. The module is built for server and workstation platforms that require ECC error correction and registered signalling.

Suits admins replacing Hynix HMT451R7AFR8C-RD

It fits systems that accept DDR3 1866MHz ECC RDIMM memory in single 4GB increments. Buyers needing higher capacities per slot, unbuffered ECC UDIMM modules, or non-ECC memory for desktop boards should look at something else.

Registered ECC RDIMM with 1Rx8 organisation

The registered buffer and ECC circuitry are mandatory for compatible server chipsets; a standard UDIMM will not function in these slots. Verify that your platform supports DDR3 1866MHz registered ECC before ordering.

Highlights

  • ECC protection prevents data corruption in critical server workloads
  • Registered design reduces electrical load for stable multi-module operation
  • DDR3 1866MHz speed delivers PC3-14900 bandwidth for responsive performance
  • 1Rx8 single-rank layout simplifies memory controller scheduling
  • 5V standard voltage ensures broad DDR3 platform compatibility

Specifications

BrandA-Tech
Capacity4GB
SpeedDDR3 1866 (PC3 14900)
CAS LatencyCL13
Voltage1.50V
ECCYes
Buffered/RegisteredRegistered
Rank1Rx8
ChipsetMajor Brand Chipset
FeaturesMajor Brand Chips

Questions about this item

How can I confirm the module is running at DDR3 1866MHz with CL13 after installation?

Enter the system BIOS or UEFI and check the memory information screen; it should show 1866 MHz speed and a CAS latency of 13 at 1.50V.

Does the package include any heatsinks, cables or additional modules beyond the single 4GB stick?

The box contains only one 4GB DDR3 240-pin ECC RDIMM module; no heatsinks, cables or extra sticks are included.

Should I choose the HMT451R7AFR8C-RD, HMT451R7BFR8C-RD or HMT451R7DFR8C-RD equivalent for my server?

All three Hynix part numbers share the same 4GB 1Rx8 DDR3 1866MHz ECC RDIMM specification, so this single module replaces any of them.

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