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Green bare DDR5 RDIMM module with gold edge connectors and black memory chips

NEMIX RAM

NEMIX RAM 32GB DDR5 4800 CL40 1Rx4 1.1V 288-pin ECC RDIMM memory upgrade

SKU CH-ZVA9-KGDQB

32 GB DDR5-4800 ECC registered RDIMM, CL40, 1.1 V, 288-pin, 1Rx4 for Lenovo ThinkSystem servers

  • Capacity32GB
  • SpeedDDR5 4800 (PC5 38400)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V
  • 32 GB capacity expands server memory headroom
  • DDR5 4800 MT/s speed feeds AMD-based ThinkSystem workloads
  • ECC registered design corrects errors for mission-critical uptime
  • 10 V operation reduces power draw per module
  • 288-pin RDIMM form factor fits Lenovo 4X77A81439 qualified slots

Lenovo ThinkSystem DDR5 ECC RDIMM

This 32GB DDR5 4800 module delivers ECC error correction and registered signalling for Lenovo ThinkSystem servers based on AMD processors. It operates at 1.10V with CL40 latency in a single 288-pin RDIMM.

IT administrators expanding qualified Lenovo

The part matches Lenovo part number 4X77A81439 and is validated for those specific AMD-based ThinkSystem models. Builders using non-Lenovo motherboards, desktop chipsets, or systems requiring unbuffered DIMMs should select different memory.

1Rx4 registered organisation

The single-rank 1Rx4 layout with registered buffering defines electrical loading on the memory controller; confirm the server DIMM population rules accept this rank configuration before purchasing.

Highlights

  • 32 GB capacity expands server memory headroom
  • DDR5 4800 MT/s speed feeds AMD-based ThinkSystem workloads
  • ECC registered design corrects errors for mission-critical uptime
  • 10 V operation reduces power draw per module
  • 288-pin RDIMM form factor fits Lenovo 4X77A81439 qualified slots

Specifications

BrandNEMIX RAM
SeriesLenovo Server/Workstation Compatible Series Memory
ModelLenovo DDR5 4800MHZ ECC RDIMM Registered Server Memory
Part NumberMR38400-314K1
Capacity32GB
SpeedDDR5 4800 (PC5 38400)
ECCYes
Buffered/RegisteredRegistered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.10V
Compatible SystemLenovo
CAS LatencyCL40
Heat SpreaderNo
Type288-Pin DDR5 RDIMM
Rank1Rx4
FeaturesDDR5 ECC Registered RDIMM Server Motherboard Compatible
Package Content32GB (1X32GB) DDR5 4800MHZ PC5-38400 1Rx4 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

Will the 288-pin DDR5 RDIMM fit my Lenovo ThinkSystem server DIMM slots?

Yes, the 288-pin DDR5 RDIMM form factor matches Lenovo ThinkSystem server memory slots designed for registered ECC modules.

What is the correct way to seat this registered ECC module, and what step do installers often miss?

Align the notch with the slot key, press firmly until both retention clips click, and ensure the server BIOS recognises the full 32 GB capacity at 4800 MT/s.

How do I know when this ECC RDIMM should be replaced in a production server?

Monitor the system event log for corrected ECC error counts; a rising trend indicates the module should be swapped before uncorrectable errors occur.

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