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Green circuit board with black memory chips in a single 288-pin DDR5 RDIMM module

NEMIX RAM

NEMIX RAM 64GB DDR5 4800 CL40 1.1V 2Rx4 ECC RDIMM memory upgrade

SKU CH-24B6-806ER

64 GB DDR5-4800 CL40 2Rx4 ECC RDIMM at 1.1 V for Lenovo ThinkSystem servers

  • Total capacity64 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 64 GB capacity handles heavy server workloads
  • DDR5 4800 speed delivers high data throughput
  • ECC registered design protects data integrity
  • 1 V operation reduces power consumption
  • Compatible with Lenovo ThinkSystem 4X77A77032 servers

Lenovo ThinkSystem DDR5 ECC RDIMM

This 64GB registered DDR5 module is built for Lenovo ThinkSystem servers running Intel processors. It targets administrators who need error-correcting memory to maintain data integrity in production workloads.

288-pin registered design with 1.1V operation

The RDIMM form factor plugs directly into compatible server motherboards without a heat spreader, keeping the profile low for dense chassis layouts. ECC and registered buffering reduce electrical load on the memory controller during sustained use.

Replaces non-ECC or lower-capacity DIMMs

Upgrading from unbuffered or smaller modules adds error correction and doubles density per slot, which matters when virtualisation or database workloads exceed the current memory ceiling.

How it compares

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

Price $1,765.99
Pricier than about 66% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $27.59 per GB
Pricier than about 77% 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 numberMR38400-924K1
Total capacity64 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 rank2Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsLenovo
In the box
Included items64 GB (1 × 64 GB) DDR5 4800 MHz PC5-38400 2Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

What speed does the DDR5 4800 interface actually run at in a Lenovo ThinkSystem server?

The module operates at DDR5 4800 (PC5-38400) with CL40 latency at 1.1 V, so that is the effective data rate once installed in a compatible ThinkSystem platform.

Does the 288-pin RDIMM fit the memory slots in a Lenovo ThinkSystem 4X77A77032 server?

Yes, the 288-pin DDR5 RDIMM form factor matches the registered DIMM slots used in the ThinkSystem 4X77A77032 and other Intel-based Lenovo servers listed for this part.

How is the module installed and what step is often missed?

Power down the server, open the chassis, align the notch on the 288-pin edge connector with the slot key, press firmly until both ejector clips click shut, then verify in BIOS that the 64 GB module is recognised at 4800 MT/s with ECC active.

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