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Green PCB memory module with black chips, no heat spreader, 288-pin DDR5 DIMM

A-Tech

A-Tech 8GB DDR5 4800 Desktop RAM 1Rx16 1.1V

SKU CH-R89Y-JV1DE

An 8GB DDR5 4800 desktop DIMM with 1Rx16 layout and 1.1V operation for PNY M5U08S66A48JJJ77-11 compatibility

  • Capacity8GB
  • SpeedDDR5 4800 (PC5 38400)
  • Tested Frequency4800
  • CAS Latency40
  • Voltage1.10V
  • ECCNo
  • 8 GB capacity lets you run more apps at once
  • DDR5 4800 speed delivers 4800 MT/s data rates
  • 1 V operation reduces power draw and heat
  • 1Rx16 single-rank layout supports broad motherboard compatibility
  • 288-pin DIMM form factor fits standard desktop slots

Compatible PNY Replacement Module

This 8GB DDR5 DIMM is a direct replacement for PNY part M5U08S66A48JJJ77-11. It fits standard 288-pin desktop slots and runs at the JEDEC-standard 1.10V. The module uses major-brand DRAM ICs in a 1Rx16 configuration and is tested at 4800 MT/s with CAS latency 40. It is unbuffered and non-ECC for typical consumer desktop platforms.

Thermals and Power in Daily Use

Operating at the standard 1.10V keeps power draw low and heat output modest during normal workloads. No heat spreader is fitted, so the green PCB relies on case airflow for cooling. The low voltage and unbuffered design help maintain quiet operation in typical office or home systems.

Deciding Specification — 4800 MT/s DDR5 Speed

The tested frequency of 4800 MT/s (PC5-38400) is the single figure that determines whether this module matches your motherboard's supported memory speed. Verify that your platform accepts DDR5-4800 before purchase; a different speed grade will not be compatible.

Pontos fortes

  • 8 GB capacity lets you run more apps at once
  • DDR5 4800 speed delivers 4800 MT/s data rates
  • 1 V operation reduces power draw and heat
  • 1Rx16 single-rank layout supports broad motherboard compatibility
  • 288-pin DIMM form factor fits standard desktop slots

Especificações

BrandA-Tech
SeriesCompatible Replacement for PNY M5U08S66A48JJJ77-11
ModelA-Tech 8GB DDR5-4800 Desktop RAM Module
Capacity8GB
SpeedDDR5 4800 (PC5 38400)
Tested Frequency4800
CAS Latency40
Voltage1.10V
ECCNo
Buffered/RegisteredUnbuffered
ChipsetMajor Brand DRAM IC Chips
ColorGreen/Black
Heat SpreaderNo
FeaturesMajor Brand DRAM IC Chips
Recommend UseCompatible Replacement for PNY M5U08S66A48JJJ77-11

Perguntas sobre este artigo

How do I install the 288-pin DDR5 DIMM and what step do people get wrong?

Align the notch on the module with the key in the DDR5 slot, press straight down until both retention clips click, and verify the clips are fully seated — the common mistake is stopping when the module feels tight but before the clips engage.

What maintenance or replacement will this 8GB 1Rx16 module need later?

No routine maintenance is required; if errors appear, run a memory diagnostic and replace the module if it fails, as the chips are not serviceable.

What limit shows up first under sustained use with this 1.1V DDR5 4800 kit?

The JEDEC-standard 1.10 V operating voltage and CL40 latency define the thermal and timing envelope; prolonged loads will hit the voltage guard band before any frequency headroom is reached.

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