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Green printed circuit board with black memory chips and gold edge connectors

Lenovo

Lenovo M393A4K40BB1-CRC4Q 32 GB DDR4 RDIMM accessory

SKU CH-ZX76-35AZ7 MPN M393A4K40BB1-CRC4Q

A single 32 GB DDR4 RDIMM module with ECC and registered operation for compatible systems

  • 32 GB capacity for demanding server workloads
  • ECC registered design protects data integrity
  • DDR4-2400 speed delivers responsive performance
  • Single 288-pin RDIMM simplifies upgrades
  • Samsung-manufactured module ensures reliable operation

Server memory upgrade

This Lenovo RDIMM supplies 32 GB of DDR4 ECC memory in a single 288-pin module rated for PC4-19200 operation. It is built for compatible Lenovo servers and workstations that require registered, dual-rank memory with error correction.

Suited for ECC platforms only

The module fits systems that accept registered DDR4 RDIMMs with ECC and a PC4-19200 bus speed. It will not work in desktop boards, laptops or any platform that requires unbuffered non-ECC memory or a different pin count.

Registered ECC RDIMM format

The registered dual-rank design with on-board ECC is the decisive specification; the motherboard must explicitly support registered ECC DDR4 RDIMMs for this module to function.

How it compares

Measured against everything we stock in Cable Locks & Laptop Extras, at today’s prices. Recalculated every night.

Price $249.99
Pricier than about 90% of the 8,808 comparable items (median $16.99).

Specifications

No published specifications for this item yet.

Questions about this item

Does the 288-pin RDIMM fit a standard DDR4 DIMM slot?

Yes, the 288-pin RDIMM matches the DDR4 DIMM slot used in compatible Lenovo servers and workstations.

What is the correct way to seat the module so the ECC register initialises?

Align the notch, press straight down until both retention clips click, then power on to let the BIOS register the ECC module.

When should the 32 GB RDIMM be replaced if ECC errors appear?

Replace the module if the system logs uncorrectable ECC errors or fails memory diagnostics during POST.

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