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Green DDR5 RDIMM circuit board with black memory chips, no heat spreader, 288 gold edge contacts

NEMIX RAM

NEMIX RAM 128GB DDR5 4800 ECC RDIMM CL40 1.1V Lenovo Thinkstation PX

SKU CH-TDB4-DZT52

128 GB DDR5 4800 ECC registered RDIMM at CL40 and 1.1 V, built for Lenovo ThinkStation PX workstations

  • Capacity128GB
  • SpeedDDR5 4800 (PC5 38400)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V
  • 128GB capacity supports demanding workloads
  • DDR5 4800 speed enables fast data throughput
  • ECC registered design protects data integrity
  • 1V operation reduces power consumption
  • Validated for Lenovo ThinkStation PX compatibility

Lenovo Thinkstation PX DDR5 RDIMM

This 128 GB registered ECC module is built for the Lenovo Thinkstation PX workstation line. It targets IT professionals and system builders who need maximum single-slot capacity with error correction for mission-critical workloads.

Single module fills one slot at full density

The 1x128 GB layout delivers the full 128 GB in a single 288-pin RDIMM. ECC and registered buffering protect data integrity under sustained load. CL40 timing at 4800 MT/s and 1.10 V operation match the platform's qualified specification.

Verify DDR5 RDIMM support and slot population rules

Confirm the workstation accepts DDR5 registered ECC RDIMMs and check the memory population guide for rank limits per channel. The 4Rx4 organisation may restrict how many modules can be installed per processor.

Highlights

  • 128GB capacity supports demanding workloads
  • DDR5 4800 speed enables fast data throughput
  • ECC registered design protects data integrity
  • 1V operation reduces power consumption
  • Validated for Lenovo ThinkStation PX compatibility

Specifications

BrandNEMIX RAM
SeriesLenovo Server/Workstation Compatible Series Memory
ModelLenovo DDR5 4800MHZ ECC RDIMM Registered Server Memory
Part NumberMR38400-744K1
Capacity128GB
SpeedDDR5 4800 (PC5 38400)
ECCYes
Buffered/RegisteredRegistered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.10V
Compatible SystemLenovo
CAS LatencyCL40
Heat SpreaderNo
Type288-Pin DDR5 RDIMM
Rank4Rx4
FeaturesDDR5 ECC Registered RDIMM Server Motherboard Compatible
Package Content128GB (1X128GB) DDR5 4800MHZ PC5-38400 4Rx4 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

Will the 128GB DDR5 4800 ECC RDIMM module need a heat spreader added later for sustained loads?

The module ships without a heat spreader; server chassis airflow is designed to cool bare DDR5 RDIMMs at 1.1 V under continuous operation.

What limits sustained throughput first on this 4Rx4 registered DDR5 4800 stick?

The CL40 CAS latency and 4800 MT/s data rate set the bandwidth ceiling before the 1.10 V power envelope becomes a bottleneck.

How much extra heat and power does the 128GB ECC RDIMM add when the ThinkStation PX runs all day?

At 1.1 V the module draws minimal power, and registered DDR5 architecture keeps thermal output low enough for standard workstation cooling.

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