What is the 4X77B09789?

A 32GB 2Rx8 RDIMM-A v2, DDR5 6400MT/s, ECC.

Which servers list it?

The ThinkSystem SR645 V3 and SR665 V3.

Which warranties apply to the Lenovo 4X77B09789?

1 year or 3 years for new and refurbished, 90 days for used.

Lenovo

Lenovo ThinkSystem 32GB DDR5 6400MT/s 2Rx8 RDIMM-A v2

Name: Lenovo ThinkSystem 32GB DDR5 6400MT/s 2Rx8 RDIMM-A v2
Brand: Lenovo
SKU: 4X77B09789

MPN4X77B09789

The Lenovo ThinkSystem 4X77B09789 is a 32GB 2Rx8 RDIMM-A v2 at DDR5 6400MT/s with ECC, listed by Lenovo for the SR645 V3 and SR665 V3.

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Warranty

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Lenovo ThinkSystem 32GB DDR5 6400MT/s 2Rx8 RDIMM-A v2

4X77B09789 · Refurbished · 1 year warranty

Quantity (units)

Overview

The Lenovo ThinkSystem 4X77B09789 is a 32GB RDIMM-A v2 with a 2Rx8 organization, rated at DDR5 6400MT/s with ECC.

Lenovo lists it for the SR645 V3 and SR665 V3, and the feature code is CBNC. Both are two-socket servers, so a matched set across all populated slots keeps the memory configuration uniform and spares simple.

The module's x8 chip layout is worth checking against any other memory already installed in the machine, because mixing different organizations in one channel is the sort of thing platform guides restrict.

This part is available in all three conditions. New and refurbished units each come with 1 year or 3 years of warranty, and used units with 90 days. Send us the number of modules you want and we will reply with pricing and availability.

Specifications

Lenovo 4X77B09789 specifications
Manufacturer part number	4X77B09789
Brand	Lenovo
ECC	Yes
Rank / organization	2Rx8
Speed	6,400 MT/s
Capacity	32 GB
Memory type	DDR5
Module type	RDIMM
Feature code	CBNC
Module variant	RDIMM-A
Compatible systems	Lenovo lists this module for SR645 V3, SR665 V3

Specifications from the manufacturer's datasheet ↗

Compatibility

The manufacturer lists this part for:

Lenovo lists this module for SR645 V3, SR665 V3

Not sure it fits? Add your system model to the message in your request and we will check before you order.

FAQ

What is the 4X77B09789?: A 32GB 2Rx8 RDIMM-A v2, DDR5 6400MT/s, ECC.
Which servers list it?: The ThinkSystem SR645 V3 and SR665 V3.
What is the feature code?: CBNC.
Which warranties apply to the Lenovo 4X77B09789?: 1 year or 3 years for new and refurbished, 90 days for used.