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Eight green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM MR38400-328K8 256GB 8x32GB DDR5 4800 CL40 ECC RDIMM memory upgrade

SKU CH-1S6C-5EQHY

256 GB DDR5 kit of eight 32 GB ECC registered RDIMMs running at 4800 MT/s with CL40 latency for Lenovo ThinkStation PX workstations

  • Total capacity256 GB (8 × 32 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 256 GB total capacity from eight 32 GB modules
  • DDR5 4800 MT/s speed for high-throughput workloads
  • ECC registered design protects data integrity in servers
  • 1 V operation reduces power draw under load
  • Validated for Lenovo ThinkStation PX workstations

Lenovo Thinkstation PX Compatible DDR5 Kit

This 256GB kit contains eight 32GB DDR5 4800 ECC RDIMM modules built for Lenovo Thinkstation PX series workstations. Registered buffering and on-die ECC protect data integrity in mission-critical workloads. The kit arrives new and ready for immediate installation.

1.10V Operation With Standard JEDEC Timing

Running at the standard 1.10V DDR5 voltage, the modules draw minimal power while maintaining CL40 latency at 4800 MT/s. No heat spreaders are fitted, so airflow from the workstation chassis handles cooling silently. Registered design reduces electrical load on the memory controller.

Eight-Module Population Fills All Slots

The 8x32GB configuration populates every available DIMM slot on supported Thinkstation PX platforms, delivering the full 256GB capacity in a single validated kit. No additional modules or software utilities are included. Mixing with other capacities or speeds is not supported by this package.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $6,806.99
Pricier than about 83% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (8 × 32 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $26.59 per GB
Pricier than about 73% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineLenovo Server/Workstation Compatible Series Memory
Model nameLenovo DDR5 4800 MHz ECC RDIMM Registered Server Memory
Part numberMR38400-328K8
Total capacity256 GB (8 × 32 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL40
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank2Rx8
Power
Rated voltage1.1 V
Compatibility
Compatible systemsLenovo
In the box
Included items256 GB (8 × 32 GB) DDR5 4800 MHz PC5-38400 2Rx8 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

How do I install the 8x32GB DDR5 4800 ECC RDIMM kit in my Lenovo Thinkstation PX, and which slot order avoids the common mistake?

Power off, unplug, open the chassis, then seat each 288-pin module firmly until the ejectors click. The Thinkstation PX manual shows a specific population sequence — usually filling every second slot per CPU first — so follow that diagram instead of simply filling consecutive sockets.

What maintenance or replacement will the DDR5 4800 CL40 ECC RDIMM modules need over their service life?

No scheduled maintenance is required. ECC corrects single-bit errors on the fly; if a module develops uncorrectable faults the system logs will flag it, at which point you replace only the affected 32GB stick.

What limit appears first when the 256GB DDR5 4800 2Rx8 kit runs sustained heavy workloads?

The registered buffer and CL40 latency at 1.1V keep signal integrity stable, so the practical ceiling is the platform's maximum supported memory bandwidth rather than the modules themselves.

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