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Four green 288-pin DDR5 UDIMM modules, no heat spreader

NEMIX RAM

NEMIX RAM 128GB (4x32GB) DDR5 4800 CL40 1.1V UDIMM ASRock Z790 PG Riptide memory upgrade

SKU CH-R3EB-FCBAW

128GB kit of four 32GB DDR5 4800 CL40 1.1V UDIMM modules validated for ASRock Z790 PG Riptide motherboards

  • Capacity128GB (4 x 32GB)
  • SpeedDDR5 4800 (PC5 38400)
  • ECCNo
  • Buffered/RegisteredUnbuffered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V
  • 128 GB total capacity across four 32 GB modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • Low 1.1 V operating voltage for efficient power use
  • CL40 CAS latency with 2Rx8 dual-rank organisation
  • Validated for ASRock Z790 PG Riptide motherboard compatibility

Capacity & Compatibility

This 128GB kit contains four 32GB DDR5 modules validated for the ASRock Z790 PG Riptide motherboard. It targets builders and IT professionals who need maximum supported memory capacity for workstations or high-end desktop systems running memory-intensive workloads.

Build Integration

The unbuffered non-ECC UDIMM design fits standard 288-pin DDR5 slots without requiring registered memory support. Operating at 1.10V, the kit draws minimal power while the dual-rank 2Rx8 organisation allows the memory controller to interleave accesses across all four modules for balanced throughput.

Sustained Workload Behaviour

Rated at DDR5 4800 with CL40 timings, the modules maintain rated frequency during extended compute sessions because every stick is stress-tested under load before shipping. The absence of a heat spreader relies on case airflow to keep temperatures stable during prolonged rendering, virtualisation or compilation tasks.

Points forts

  • 128 GB total capacity across four 32 GB modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • Low 1.1 V operating voltage for efficient power use
  • CL40 CAS latency with 2Rx8 dual-rank organisation
  • Validated for ASRock Z790 PG Riptide motherboard compatibility

Caractéristiques

BrandNEMIX RAM
SeriesASRock Gaming Motherboard Compatible Series Memory
ModelASRock DDR5 4800MHZ Non-ECC Unbuffered UDIMM
Part NumberMD38400-328K4
Capacity128GB (4 x 32GB)
SpeedDDR5 4800 (PC5 38400)
ECCNo
Buffered/RegisteredUnbuffered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.10V
Compatible SystemASRock
CAS LatencyCL40
Heat SpreaderNo
Type288-Pin DDR5 UDIMM
Rank2Rx8
FeaturesDDR5 Non-ECC Unbuffered UDIMM Motherboard Compatible
Package Content128GB (4X32GB) DDR5 4800MHZ PC5-38400 2Rx8 1.1V CL40 288-PIN Non-ECC Unbuffered UDIMM KIT

Questions sur cet article

Will the CL40 latency become a bottleneck when all four slots are populated at 4800 MT/s?

The kit runs at CL40 across all four 32 GB modules at the rated 4800 MT/s; latency does not change when the board fills every slot.

How much heat do four 1.1 V DDR5 modules generate during continuous workloads?

Each module operates at 1.1 V without a heat spreader, so sustained load produces only the standard DDR5 thermal output for unbuffered UDIMMs.

Does the ASRock Z790 PG Riptide need a specific BIOS version before this 128 GB kit will post?

The kit is validated for the ASRock Z790 PG Riptide; install the modules and the board will recognise the 128 GB capacity at 4800 MT/s.

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