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Eight green DDR5 RDIMM modules with black chips, no heat spreaders, in a row

NEMIX RAM

NEMIX RAM DDR5 512GB 8x64GB 6400MHz CL52 4Rx4 ECC Registered RDIMM memory upgrade

SKU CH-D6CG-PGPXH

Eight 64 GB DDR5 RDIMMs deliver 512 GB of registered ECC memory at 6400 MHz CL52 for the Supermicro X14SDW-64C-SP9F

  • Capacity512GB (8 x 64GB)
  • Type288-Pin DDR5 RDIMM
  • SpeedDDR5 6400 (PC5 51200)
  • CAS LatencyCL52
  • Voltage1.10V
  • ECCYes

Size 512GB 8X64GB

Show 4 more configurations
  • 512 GB total capacity with eight 64 GB modules for maximum server density
  • DDR5 6400 speed (PC5-51200) runs at rated frequency on compatible Supermicro boards
  • Registered ECC design with 4Rx4 organisation offloads the controller and corrects single-bit errors
  • 10 V operation at CL52 matches the motherboard's exact voltage and timing requirements
  • 288-pin RDIMM form factor fits the Supermicro X14SDW-64C-SP9F memory slots precisely

Server-grade 512GB DDR5 kit

This 512GB kit contains eight 64GB DDR5 RDIMMs running at 6400MHz with CL52 latency and 1.1V operation. It targets administrators upgrading the Supermicro X14SDW-64C-SP9F motherboard where registered ECC memory is mandatory for full-capacity recognition. The 4Rx4 organisation matches the board's memory-controller expectations exactly.

Sustained-load behaviour

Registered buffering reduces electrical load on the memory controller so all eight slots remain stable at the rated 6400MHz transfer rate during continuous workloads. On-die ECC corrects single-bit errors in real time, preventing silent data corruption that would otherwise trigger unplanned reboots under prolonged stress.

DDR5 interface limits

The 288-pin RDIMM form factor fits only DDR5 registered DIMM slots; it cannot be used in UDIMM or SODIMM sockets. Maximum density per module is 64GB at the 4Rx4 rank structure, so total capacity is bounded by the eight-slot population rule of the target motherboard.

Highlights

  • 512 GB total capacity with eight 64 GB modules for maximum server density
  • DDR5 6400 speed (PC5-51200) runs at rated frequency on compatible Supermicro boards
  • Registered ECC design with 4Rx4 organisation offloads the controller and corrects single-bit errors
  • 10 V operation at CL52 matches the motherboard's exact voltage and timing requirements
  • 288-pin RDIMM form factor fits the Supermicro X14SDW-64C-SP9F memory slots precisely

Specifications

BrandNEMIX RAM
SeriesNEMIX RAM Original Series Server Memory
ModelDDR5 ECC RDIMM Registered Server Memory
Part NumberMR51200-944K8
Capacity512GB (8 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 Content512GB 8X64GB DDR5 6400MHz PC5-51200 4Rx4 1.1V 288-PIN ECC RDIMM KIT

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Questions about this item

How much heat and power does this 512GB DDR5 kit draw when the Supermicro X14SDW-64C-SP9F runs fully populated all day?

Each 64GB RDIMM operates at 1.1V with no heat spreader, so the eight modules together run at the standard DDR5 1.10V level; registered buffering reduces electrical load on the memory controller during sustained workloads.

What must my Supermicro X14SDW-64C-SP9F already have to accept this 8 x 64GB 4Rx4 registered ECC kit?

The motherboard needs eight free 288-pin DDR5 RDIMM slots and a BIOS that supports 4Rx4 registered ECC modules at DDR5 6400 CL52; the manual's population table will confirm the exact slot order for full 512GB capacity.

Will these 4Rx4 CL52 modules run at rated speed alongside any older DDR5 RDIMMs I keep in the same server?

Mixing ranks or timings forces the memory controller to downclock all slots to the slowest common JEDEC speed; for guaranteed DDR5 6400 CL52 operation, populate all eight slots with this matched 4Rx4 kit.

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