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Two green DDR5 RDIMM modules without heat spreaders, 288-pin, 128GB kit

NEMIX RAM

NEMIX RAM 128GB (2x64GB) DDR5 6400 CL52 4Rx4 1.1V ECC RDIMM memory upgrade

SKU CH-646R-TPA9T

128 GB DDR5 6400 CL52 4Rx4 ECC registered RDIMM kit built for Supermicro X14SDW-40C-SP9F servers

  • Capacity128GB (2 x 64GB)
  • Type288-Pin DDR5 RDIMM
  • SpeedDDR5 6400 (PC5 51200)
  • CAS LatencyCL52
  • Voltage1.10V
  • ECCYes

Size 128GB 2X64GB

  • 128 GB total capacity for memory-intensive workloads using two 64 GB modules
  • DDR5 6400 speed with CL52 latency runs at rated frequency on supported platforms
  • Registered ECC architecture corrects single-bit errors and buffers signals for full-slot stability
  • 10 V operation matches the server memory controller's voltage requirement exactly
  • 288-pin RDIMM form factor fits the Supermicro X14SDW-40C-SP9F motherboard's DIMM slots

Exact-fit server upgrade

This NEMIX RAM kit delivers 128 GB of DDR5 memory in two 64 GB registered ECC RDIMMs built for the Supermicro X14SDW-40C-SP9F motherboard. The modules run at DDR5-6400 with CL52 latency at 1.1 V, matching the exact rank, voltage and timing the board's memory controller expects. System administrators who need maximum capacity per slot without configuration guesswork will find this kit validated for that platform. It is not suited for workstations or desktops that accept only unbuffered UDIMMs or require different population rules.

DDR5 RDIMM platform limits

The registered DDR5 interface used here offloads electrical load from the memory controller so every slot can run fully populated at rated speed, while on-die ECC corrects single-bit errors before they reach the OS. Bandwidth and latency are fixed by the DDR5-6400 JEDEC standard the board implements; no manual tuning or higher data rates are supported on this platform. Buyers who need more total memory than the board's maximum supported capacity or who require UDIMM or SODIMM form factors cannot use this kit.

4Rx4 registered ECC spec

The decisive specification is the 4Rx4 registered ECC organisation combined with 1.1 V operation at CL52, which the Supermicro X14SDW-40C-SP9F memory controller recognises at full 64 GB per DIMM. If your system manual lists a different rank structure, voltage or form factor, the modules will not post at the rated capacity or speed. Confirm the exact population order and maximum DIMM count in your motherboard documentation before ordering.

Points forts

  • 128 GB total capacity for memory-intensive workloads using two 64 GB modules
  • DDR5 6400 speed with CL52 latency runs at rated frequency on supported platforms
  • Registered ECC architecture corrects single-bit errors and buffers signals for full-slot stability
  • 10 V operation matches the server memory controller's voltage requirement exactly
  • 288-pin RDIMM form factor fits the Supermicro X14SDW-40C-SP9F motherboard's DIMM slots

Caractéristiques

BrandNEMIX RAM
SeriesNEMIX RAM Original Series Server Memory
ModelDDR5 ECC RDIMM Registered Server Memory
Part NumberMR51200-944K2
Capacity128GB (2 x 64GB)
Type288-Pin DDR5 RDIMM
SpeedDDR5 6400 (PC5 51200)
CAS LatencyCL52
Voltage1.10V
ECCYes
Buffered/RegisteredRegistered
Rank4Rx4
ChipsetMajor OEM Samsung, Micron, Hynix
Heat SpreaderNo
Compatible SystemSupermicro
FeaturesDDR5 ECC RDIMM Motherboard Compatible
Package Content128GB 2X64GB DDR5 6400MHz PC5-51200 4Rx4 1.1V 288-PIN ECC RDIMM KIT

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Questions sur cet article

Should I pick this 128GB kit or a smaller capacity for my Supermicro X14SDW-40C-SP9F?

Choose the 128GB (2 x 64GB) kit if your workload needs maximum capacity per channel; the 4Rx4 registered ECC modules are validated for full population on this board.

What does the 6400 speed rating deliver once installed in the server?

The DDR5 6400 modules run at their rated 6400 MT/s with CL52 latency at 1.1V, giving the memory controller the bandwidth it expects for production workloads.

How does the 288-pin RDIMM interface limit what I can do with this memory?

The 288-pin registered ECC form factor fits only DDR5 RDIMM slots; it cannot be used in UDIMM or SODIMM sockets and requires a motherboard that supports registered memory.

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