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Four green DDR5 UDIMM sticks, no heat spreaders, 64GB kit

NEMIX RAM

NEMIX RAM 64GB (4x16GB) DDR5 4800 CL40 1.1V UDIMM memory upgrade for SuperMicro SYS-531AD-I C9Z790-CG

SKU CH-PRBC-Z6V7Z

64 GB kit of four 16 GB DDR5 4800 CL40 1.1 V UDIMM modules for the SuperMicro SYS-531AD-I C9Z790-CG

  • Capacity64GB (4 x 16GB)
  • SpeedDDR5 4800 (PC5 38400)
  • ECCNo
  • Buffered/RegisteredUnbuffered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V

Capacity 64GB 4X16GB

  • 64 GB total capacity in a four-module kit
  • DDR5 4800 speed rated at PC5-38400
  • CL40 latency at 1.1 V operating voltage
  • 288-pin UDIMM form factor with 1Rx8 organisation
  • Validated for SuperMicro SYS-531AD-I C9Z790-CG systems

Targeted System Upgrade

This 64GB kit is built specifically for the SuperMicro SYS-531AD-I C9Z790-CG workstation. It contains four 16GB modules that match the platform's DDR5 4800 specification. The unbuffered, non-ECC design suits desktop and workstation boards that require standard UDIMMs. Builders expanding memory on this exact model can install the kit without configuration guesswork.

Thermals and Power

Each module runs at 1.1 volts, the standard DDR5 operating voltage, which keeps power draw low during typical workloads. The sticks ship without heat spreaders, relying on case airflow to maintain safe temperatures. CL40 latency at 4800 MT/s delivers stable timing for everyday compute tasks without increasing thermal load.

Physical Layout and Daily Use

The 288-pin UDIMM form factor fits the board's standard DDR5 slots and the 1Rx8 organisation populates four channels evenly. No extra clearance is needed for tall coolers because the modules have a low profile. The kit arrives as a matched set of four, so all slots are filled in a single step and the system recognises the full capacity immediately.

Points forts

  • 64 GB total capacity in a four-module kit
  • DDR5 4800 speed rated at PC5-38400
  • CL40 latency at 1.1 V operating voltage
  • 288-pin UDIMM form factor with 1Rx8 organisation
  • Validated for SuperMicro SYS-531AD-I C9Z790-CG systems

Caractéristiques

BrandNEMIX RAM
SeriesSuperMicro Server/Workstation Compatible Series Memory
ModelSuperMicro DDR5 4800MHZ Non-ECC Unbuffered UDIMM
Part NumberMD38400-618K4
Capacity64GB (4 x 16GB)
SpeedDDR5 4800 (PC5 38400)
ECCNo
Buffered/RegisteredUnbuffered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.10V
Compatible SystemSupermicro
CAS LatencyCL40
Heat SpreaderNo
Type288-Pin DDR5 UDIMM
Rank1Rx8
FeaturesDDR5 Non-ECC Unbuffered UDIMM Motherboard Compatible
Package Content64GB (4X16GB) DDR5 4800MHZ PC5-38400 1Rx8 1.1V CL40 288-PIN Non-ECC Unbuffered UDIMM KIT

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Questions sur cet article

How do I install the four 288-pin DDR5 UDIMM modules into the SuperMicro SYS-531AD-I C9Z790-CG, and what step is often missed?

Power off and unplug the workstation, open the chassis, locate the four DDR5 slots, align each module's notch with the slot key, press down firmly until both retention clips click, then verify in BIOS that all 64 GB are detected at 4800 MT/s.

What maintenance or replacement will this 1Rx8 DDR5 kit need over its service life?

The modules have no heat spreaders and no moving parts, so no routine maintenance is required; if a module fails, the lifetime replacement warranty covers a direct swap of the defective 16 GB stick.

What limit appears first when the 64 GB kit runs sustained workloads at 1.10 V?

The CL40 CAS latency at 4800 MT/s sets the timing ceiling; under continuous load the memory controller will hit this latency bound before voltage or thermal limits become a factor.

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