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Green 288-pin DDR5 RDIMM circuit board with black memory chips, no heat spreader

A-Tech

A-Tech 32GB DDR5 5600MHz ECC RDIMM 1Rx4 288-Pin Server RAM

SKU CH-369R-BYS1G

32 GB DDR5 5600 MHz ECC registered DIMM with 1Rx4 rank for server and workstation upgrades

  • Total capacity32 GB
  • Rated speedDDR5 5600 (PC5 44800)
  • ChipsetMajor Brand Chipset
  • CAS latency40
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 32 GB capacity expands server memory for heavier workloads
  • DDR5 5600 MHz speed delivers high bandwidth for demanding applications
  • ECC registered design detects and corrects data errors automatically
  • 1Rx4 single-rank layout keeps signal integrity on dense configurations
  • 10 V standard voltage reduces power draw per module

Server DDR5 ECC RDIMM Upgrade

This 32GB DDR5 module runs at 5600MHz with a CAS latency of 40 and operates at 1.10V. It uses a registered 288-pin RDIMM form factor with 1Rx4 organisation and on-board ECC for data integrity in server and workstation platforms.

Replaces Hynix HMCG84AGBRA Series

The module is a compatible replacement for Hynix part numbers HMCG84AGBRA186N, HMCG84AGBRA190N, HMCG84AGBRA191N and HMCG84AGBRA623N. The upgrade is worthwhile when the existing system requires registered ECC memory at the DDR5 5600 speed grade and the current slots are populated with slower or lower-capacity modules.

Sustained Load Behaviour

Major-brand DRAM IC chips and full quality-assurance testing are used to maintain stable operation under continuous server workloads. The registered buffer reduces electrical load on the memory controller, helping to preserve signal integrity during extended multi-threaded tasks without a heat spreader.

How it compares

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

Price $895.99
Pricier than about 79% of the 6,523 comparable items (median $188.99).
Total capacity 32 GB
Typical for this category: the median of 6,064 items is 32 GB.
CAS latency 40
Typical for this category: the median of 439 items is 40.
Price per GB $28.00 per GB
Pricier than about 89% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameA-Tech
Product lineCompatible Replacement for Hynix HMCG84AGBRA186N HMCG84AGBRA190N HMCG84AGBRA191N HMCG84AGBRA623N
Model nameA-Tech 32 GB DDR5-5600 ECC RDIMM Server RAM Module
Total capacity32 GB
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 5600 (PC5 44800)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latency40
ECC supportYes
Buffer typeRegistered
Memory rank1Rx4
Heat spreaderNo
Power
Rated voltage1.1 V

Questions about this item

Will this 288-pin DDR5 RDIMM fit my server's memory slots?

The module uses the standard 288-pin DDR5 RDIMM form factor, so it fits any server or workstation board that accepts DDR5 registered DIMMs.

What is the correct way to seat this 1Rx4 ECC RDIMM, and what step do installers often miss?

Align the notch with the slot key, press straight down until both retention clips click, then verify the system recognises the full 32 GB capacity and ECC function in BIOS.

Does the 1.1 V DDR5 module need any firmware updates or periodic maintenance?

No firmware updates are required for the memory itself; keep the server's BIOS current for best compatibility and reseat the module only if diagnostics report errors.

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