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

A-Tech

A-Tech 8GB DDR5 4800MHz CL40 1.1V Desktop RAM HMCG66AEBUA084N

SKU CH-X2P9-53VPM

8GB DDR5 desktop module at 4800MHz CL40, 1.1V unbuffered, replacing Hynix HMCG66AEBUA series

  • Capacity8GB
  • SpeedDDR5 4800 (PC5 38400)
  • Tested Frequency4800
  • CAS LatencyCL40
  • Voltage1.10V
  • ECCNo
  • 8GB capacity expands multitasking headroom for everyday workloads
  • DDR5 4800MHz speed delivers high data throughput at PC5-38400 rating
  • CL40 latency timing supports responsive system operation
  • 1V standard voltage ensures efficient power draw
  • 288-pin DIMM form factor fits compatible desktop motherboards

What this product is

This A-Tech module is an 8GB DDR5 DIMM rated at 4800MHz with CL40 latency and 1.10V operation. It is an unbuffered non-ECC replacement for Hynix HMCG66AEBUA084N and related part numbers, built for desktop systems that accept DDR5 memory.

Before you order

Confirm your motherboard supports DDR5 DIMMs at 4800MHz and 1.10V, and that it uses the standard 288-pin form factor. The module has no heat spreader, so ensure your chassis airflow can manage thermals if you populate multiple slots. Check the qualified vendor list for the exact Hynix part numbers listed to guarantee compatibility.

Under sustained load

The JEDEC-standard 1.10V voltage keeps power draw consistent during extended workloads. Without a heat spreader, the module relies on case airflow to maintain stable temperatures when all ranks are active for long periods. CL40 timing remains fixed at the rated frequency, delivering predictable latency for continuous multitasking or compute tasks.

Points forts

  • 8GB capacity expands multitasking headroom for everyday workloads
  • DDR5 4800MHz speed delivers high data throughput at PC5-38400 rating
  • CL40 latency timing supports responsive system operation
  • 1V standard voltage ensures efficient power draw
  • 288-pin DIMM form factor fits compatible desktop motherboards

Caractéristiques

BrandA-Tech
SeriesCompatible Replacement for Hynix
ModelHMCG66AEBUA, HMCG66AEBUA084N, HMCG66MEBUA, HMCG66MEBUA081N, HMCG66MEBUA084N
Capacity8GB
SpeedDDR5 4800 (PC5 38400)
Tested Frequency4800
CAS LatencyCL40
Voltage1.10V
ECCNo
Buffered/RegisteredUnbuffered
ChipsetMajor Brand Chipset
Heat SpreaderNo
FeaturesHMCG66AEBUA, HMCG66AEBUA084N, HMCG66MEBUA, HMCG66MEBUA081N, HMCG66MEBUA084N
Recommend UseCompatible Replacement for Hynix HMCG66AEBUA, HMCG66AEBUA084N, HMCG66MEBUA, HMCG66MEBUA081N, HMCG66MEBUA084N

Questions sur cet article

Will this 288-pin DDR5 module fit my motherboard's DIMM slots?

The module uses the standard 288-pin DDR5 DIMM form factor. Check your motherboard manual to confirm it supports DDR5 memory before ordering.

My current RAM is a Hynix HMCG66MEBUA084N — is this a direct replacement?

Yes, this A-Tech module is listed as a compatible replacement for Hynix part numbers HMCG66AEBUA, HMCG66AEBUA084N, HMCG66MEBUA, HMCG66MEBUA081N and HMCG66MEBUA084N.

Do I need to change any BIOS voltage settings for this 1.10 V kit?

The module runs at the standard DDR5 voltage of 1.10 V. Most modern motherboards apply this automatically, but you can verify the setting in your BIOS if desired.

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