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Two green DDR5 UDIMM sticks without heat spreaders

NEMIX RAM

NEMIX RAM 32GB (2x16GB) DDR5 4800 CL40 1.1V UDIMM memory upgrade

SKU CH-JQGN-APARG

DDR5 desktop memory kit delivering 32 GB in two 16 GB unbuffered UDIMMs at 4800 MT/s CL40 1.1 V

  • Capacity32GB (2 x 16GB)
  • SpeedDDR5 4800 (PC5 38400)
  • ECCNo
  • Buffered/RegisteredUnbuffered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V

Capacity 32GB 2X16GB

  • 32 GB kit boosts multitasking headroom with two 16 GB modules
  • DDR5 4800 speed delivers high bandwidth for demanding workloads
  • CL40 latency keeps response tight under load
  • 1 V operation reduces power draw and heat
  • Validated for ASRock Z790 Taichi series motherboards

ASRock Z790 DDR5 kit

This NEMIX RAM kit supplies 32 GB of DDR5 memory in two 16 GB modules built for ASRock Z790 Taichi series motherboards. The modules run at 4800 MT/s with CL40 latency and 1.1 V operation. Unbuffered, non-ECC UDIMM design fits standard desktop DIMM slots for straightforward capacity upgrades.

1.1 V baseline operation

At the rated 1.10 V the kit draws minimal power and produces little heat because no heat spreader is fitted. Silent operation is typical since the modules rely on case airflow alone. The low voltage also keeps the memory controller within its default thermal envelope during everyday workloads.

Sustained load stability

Each module is stress tested under load before shipping to verify reliability during extended compute sessions. The 1Rx8 organisation and major OEM chips from Samsung, Micron or Hynix maintain timing consistency at 4800 MT/s without throttling. Builders who need ECC error correction or registered buffering should choose a different module type.

Highlights

  • 32 GB kit boosts multitasking headroom with two 16 GB modules
  • DDR5 4800 speed delivers high bandwidth for demanding workloads
  • CL40 latency keeps response tight under load
  • 1 V operation reduces power draw and heat
  • Validated for ASRock Z790 Taichi series motherboards

Specifications

BrandNEMIX RAM
SeriesASRock Gaming Motherboard Compatible Series Memory
ModelASRock DDR5 4800MHZ Non-ECC Unbuffered UDIMM
Part NumberMD38400-618K2
Capacity32GB (2 x 16GB)
SpeedDDR5 4800 (PC5 38400)
ECCNo
Buffered/RegisteredUnbuffered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.10V
Compatible SystemASRock
CAS LatencyCL40
Heat SpreaderNo
Type288-Pin DDR5 UDIMM
Rank1Rx8
FeaturesDDR5 Non-ECC Unbuffered UDIMM Motherboard Compatible
Package Content32GB (2X16GB) DDR5 4800MHZ PC5-38400 1Rx8 1.1V CL40 288-PIN Non-ECC Unbuffered UDIMM KIT

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Questions about this item

How do I install the 288-pin DDR5 UDIMM modules in the ASRock Z790 motherboard and which slot order avoids the common mistake?

Insert each 16GB stick into the DDR5 slots labelled DIMM_A2 and DIMM_B2 first; the board silkscreen shows the correct pair, and pressing down until both side clips click seats the 1Rx8 modules at 1.10V without forcing the key notch.

What maintenance or replacement will the 32GB kit need during its service life?

The unbuffered non-ECC DDR5 modules have no heat spreader and no moving parts, so only occasional dust removal from the gold contacts is required; if a stick fails the lifetime replacement covers it.

What limit appears first when the CL40 4800MT/s memory runs sustained workloads?

The CAS 40 latency at 1.1V sets the timing ceiling; under continuous load the JEDEC-standard DDR5 4800 throughput of 38400 MB/s is reached before any thermal throttle on the bare Samsung, Micron or Hynix chips.

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