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Green 288-pin DDR5 RDIMM module, no heat spreader, gold edge contacts

NEMIX RAM

NEMIX RAM 32GB DDR5 4800 ECC RDIMM CL40 1Rx4 Lenovo 4X77A77483 memory upgrade

SKU CH-B1TC-ZP5KY

A 32 GB DDR5 registered ECC module running at 4800 MT/s with CL40 latency for compatible Lenovo servers

  • Total capacity32 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 32 GB DDR5 4800 MHz expands server capacity
  • ECC registered design protects data integrity under load
  • 1 V operation lowers power draw per module
  • 1Rx4 single-rank layout simplifies memory population
  • Validated for Lenovo ThinkSystem 4X77A77483 compatibility

32 GB DDR5 ECC RDIMM for Lenovo servers

This 32 GB DDR5 4800 module is built as a 288-pin registered DIMM with ECC and a 1Rx4 organisation. It targets administrators expanding Lenovo ThinkSystem platforms that require registered memory for Intel processor based servers.

Capacity and headroom at DDR5 4800

A single 32 GB stick adds substantial memory bandwidth at 4800 MT/s while operating at 1.1 V with CL40 latency. The registered buffer and ECC protect data integrity under sustained server workloads, though the module lacks a heat spreader for extended thermal headroom.

Upgrade path from lower density or non-ECC DIMMs

The part replaces smaller DDR5 RDIMMs or non-ECC modules when the platform demands registered error correction. The jump is worthwhile when the server chassis and memory controller support 1Rx4 registered DDR5 at this speed and voltage.

How it compares

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

Price $807.99
Pricier than about 58% of the 21,161 comparable items (median $397.99).
Total capacity 32 GB
Typical for this category: the median of 20,941 items is 32 GB.
Price per GB $25.25 per GB
Pricier than about 70% 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 numberMR38400-314K1
Total capacity32 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 rank1Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsLenovo
In the box
Included items32 GB (1 × 32 GB) DDR5 4800 MHz PC5-38400 1Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

Will this 32GB DDR5 4800 CL40 1.1V RDIMM run with existing DDR5 4800 ECC registered modules in my Lenovo ThinkSystem?

Yes, it matches DDR5 4800 PC5-38400 1.10V CL40 1Rx4 registered ECC specs; the server will clock all slots to the slowest common JEDEC timing automatically.

How do I verify the module is running at 4800 MT/s with ECC active after installation?

Check the BIOS memory info or OS tools (dmidecode, lshw, IPMI) — they should report 4800 MT/s, 1Rx4 organisation, registered ECC and 1.10V operation.

Does the package include only the 288-pin RDIMM or any extra brackets or cables?

The box contains one 32GB 288-pin DDR5 RDIMM; no brackets, cables or additional hardware are supplied.

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