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Two green DDR5 RDIMM modules with black chips, no heat spreader

NEMIX RAM

NEMIX RAM 256GB (2x128GB) DDR5 4800 ECC RDIMM memory upgrade

SKU CH-PNFX-NHA0F

Adds 256GB of DDR5 4800 ECC registered memory in a dual 128GB kit for compatible Supermicro servers

  • Capacity256GB (2 x 128GB)
  • SpeedDDR5 4800 (PC5 38400)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V
  • 256 GB total capacity from two 128 GB modules
  • DDR5 4800 speed rated at PC5-38400
  • ECC registered design for data integrity
  • 10 V operating voltage for efficient power use
  • Qualified for Supermicro FatTwin SuperServer SYS-F521E3-RTB SYS-F511E2-RT X13SEFR-A

Server-grade DDR5 ECC RDIMM kit

This 256 GB kit contains two 128 GB DDR5 4800 registered DIMMs with ECC and a CL40 latency. Modules run at 1.1 V and use a 288-pin layout with 4Rx4 organisation. Designed for Supermicro FatTwin SuperServer SYS-F521E3-RTB and SYS-F511E2-RT platforms.

Compatibility limits

Suitable for administrators upgrading the named Supermicro FatTwin systems with validated ECC registered memory. Not for desktop PCs, workstations or laptops that require unbuffered non-ECC modules or a different pin-out.

DDR5 4800 registered ECC specification

The decisive spec is DDR5 4800 (PC5-38400) registered ECC RDIMM at 1.1 V with CL40 timing. Only systems that explicitly support this exact registered DDR5 standard and the Supermicro FatTwin models listed will accept the kit.

Points forts

  • 256 GB total capacity from two 128 GB modules
  • DDR5 4800 speed rated at PC5-38400
  • ECC registered design for data integrity
  • 10 V operating voltage for efficient power use
  • Qualified for Supermicro FatTwin SuperServer SYS-F521E3-RTB SYS-F511E2-RT X13SEFR-A

Caractéristiques

BrandNEMIX RAM
SeriesSuperMicro Server/Workstation Compatible Series Memory
ModelSuperMicro DDR5 4800MHZ ECC RDIMM Registered Server Memory
Part NumberMR38400-744K2
Capacity256GB (2 x 128GB)
SpeedDDR5 4800 (PC5 38400)
ECCYes
Buffered/RegisteredRegistered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.10V
Compatible SystemSupermicro
CAS LatencyCL40
Heat SpreaderNo
Type288-Pin DDR5 RDIMM
Rank4Rx4
FeaturesDDR5 ECC Registered RDIMM Server Motherboard Compatible
Package Content256GB (2X128GB) DDR5 4800MHZ PC5-38400 4Rx4 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions sur cet article

Does this 288-pin DDR5 RDIMM fit a standard server DIMM slot?

Yes, the 288-pin DDR5 RDIMM form factor matches standard DDR5 registered DIMM slots used in compatible Supermicro systems.

What is the correct way to install the two 128GB modules in a Supermicro FatTwin node?

Install both modules in the same memory channel pair as specified in the Supermicro SYS-F521E3-RTB or SYS-F511E2-RT manual; mixing channels can prevent the 256GB kit from being recognised.

Will the Samsung, Micron or Hynix chips on these modules need active cooling later?

The modules ship without a heat spreader; ensure the server chassis provides adequate airflow over the DIMM slots to maintain stable operation at 1.10V.

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