Name: Lenovo ThinkSystem 64GB TruDDR4 2666 MHz (4Rx4 1.2V) LRDIMM
Brand: Lenovo
SKU: Lenovo 7X77A01305 64GB*1
Availability: OutOfStock
Rating: 4.2 (5 reviews)

Question 1

What is the Lenovo ThinkSystem 64GB TruDDR4 2666 MHz LRDIMM (SKU 7X77A01305)?

Accepted Answer

The Lenovo ThinkSystem 64GB TruDDR4 2666 MHz LRDIMM (SKU 7X77A01305) is a single‐rank, load-reduced DIMM designed for enterprise servers, offering 64 GB of ECC‐protected memory at 2,666 MHz and 1.2 V.

Question 2

What are the key specifications of SKU 7X77A01305?

Accepted Answer

Key specifications include 64 GB capacity, 2,666 MHz frequency, 1.2 V operating voltage, 4Rx4 rank configuration, ECC support, and a standard 288-pin LRDIMM form factor.

Question 3

Does this module support error-correcting code (ECC)?

Accepted Answer

Yes. The module features full ECC support to detect and correct single-bit errors, ensuring higher data integrity for mission-critical workloads.

Question 4

Which Lenovo servers is this memory compatible with?

Accepted Answer

This LRDIMM is validated for all Lenovo ThinkSystem rack and tower servers that support 2,666 MHz DDR4 LRDIMM, including the SR, ST, and SN series platforms.

Question 5

How many memory ranks and banks does the module use?

Accepted Answer

The module uses a 4Rx4 architecture with four ranks of 16 GB dies, optimizing signal integrity and enabling higher capacity per DIMM.

Question 6

What are the performance benefits of using this 64 GB TruDDR4 module?

Accepted Answer

By combining higher frequency and load-reduced buffering, this DIMM delivers increased bandwidth, reduced latency, and sustained throughput under heavy multitasking loads.

Question 7

Can I mix Lenovo TruDDR4 LRDIMMs with RDIMMs in the same server?

Accepted Answer

No. Mixing LRDIMMs with RDIMMs or UDIMMs is not supported. All memory modules must be of the same type to ensure proper signaling and stability.

Question 8

How do I install the 64 GB TruDDR4 2666 MHz LRDIMM?

Accepted Answer

Power down the server, remove the access panel, align the module with the keyed slot, press firmly until the latches click, then reassemble and power on.

Question 9

Is this memory module supported by Lenovo XClarity management tools?

Accepted Answer

Yes. Lenovo XClarity Controller and XClarity Administrator automatically detect, monitor, and report status for TruDDR4 LRDIMMs for seamless infrastructure management.

Question 10

What warranty coverage comes with this Lenovo memory module?

Accepted Answer

Lenovo provides a three-year, customer-replaceable unit (CRU) warranty for the TruDDR4 LRDIMM, backed by global service and support.

Question 11

Does the module comply with environmental and safety standards?

Accepted Answer

Yes. It meets RoHS, WEEE, and REACH environmental directives, and is UL- and CE-certified for enterprise data center deployment.

Question 12

How does a load-reduced DIMM (LRDIMM) differ from a registered DIMM (RDIMM)?

Accepted Answer

LRDIMMs include on-module buffers for both address/command and data lines, reducing electrical load on the memory bus and enabling higher capacity and performance versus RDIMMs.

Question 13

What use cases benefit most from this 64 GB TruDDR4 LRDIMM?

Accepted Answer

Ideal workloads include virtualization, in-memory databases, large-scale analytics, and high-performance computing that demand high capacity and reliability.

Question 14

Can I upgrade existing Lenovo servers with SKU 7X77A01305 modules?

Accepted Answer

Yes. Provided your server model supports 2,666 MHz DDR4 LRDIMMs, you can install this module to expand capacity without BIOS updates in most ThinkSystem releases.

Question 15

What part number should I quote when ordering this memory?

Accepted Answer

Use Lenovo part number 7X77A01305 to ensure you receive the genuine 64 GB TruDDR4 2666 MHz (4Rx4 1.2 V) LRDIMM for ThinkSystem servers.

Question 16

Where can I purchase genuine Lenovo ThinkSystem memory modules?

Accepted Answer

You can buy through Lenovo’s authorized resellers, channel partners, or the official Lenovo Premier site to guarantee authenticity and full support.

	Lenovo 7X77A01305 64GB*1	57Y4427	0A65730	Lenovo 7X77A01304 32GB*1	Lenovo 7X77A01302 16GB*1
Product Type	Computer Memory	Computer Memory	Computer Memory	Computer Memory	Computer Memory
Memory Type	DDR4	DDR4	DDR4	DDR4	DDR4
Capacity	64 GB	16 GB	16 GB	32 GB	16 GB
Compatible Platforms	Desktop / Laptop / Server	Desktop	Desktop	Desktop	Laptop
Compatible Systems	N/A	Workstation	Workstation	N/A	N/A
Form Factor	SODIMM	UDIMM	UDIMM	UDIMM	SODIMM
Kit Configuration	Single Channel	Dual Channel	Single Channel	Single Channel	Single Channel
Speed	3200 MHz	3200 MHz	3200 MHz	3200 MHz	3200 MHz
Operating Temperature	N/A	N/A	N/A	N/A	N/A
Reliability Rating	Standard	Standard	Standard	Standard	N/A
CAS Latency (CL)	CL16	CL16	CL16	CL16	CL22
Voltage	1.2V	1.35V	1.2V	1.2V	1.2V
ECC Support	No	No	No	No	No
Registered/Buffered	Unbuffered	Unbuffered	Unbuffered	Unbuffered	Unbuffered
XMP Support	No	Intel XMP 2.0	Intel XMP 2.0	No	No
RGB Lighting	No	Yes	No	No	No
Heatsink / Heatspreader	Yes	Yes	Yes	Yes	No
Intel Platform Support	N/A	Intel 12th Gen	Intel 12th Gen	Intel 10th Gen	N/A
AMD Platform Support	N/A	AMD Ryzen 5000	AMD Ryzen 5000	AMD Ryzen 3000	N/A
Use Case	Gaming / Workstation	Gaming	Gaming	Workstation	General Use
Product Name	Lenovo 7X77A01305 64GB*1	57Y4427 High Performance DDR4 Memory Kit	0A65730 High Performance DDR4 Desktop Memory	Lenovo 7X77A01304 32GB*1	Lenovo 7X77A01302 16GB*1
Height	N/A	1.25 inches	1.4 inches	N/A	N/A
Width	N/A	5.25 inches	5.25 inches	N/A	N/A
Depth	N/A	0.13 inches	0.66 inches	N/A	N/A
Weight	N/A	0.22 lbs	0.3 lbs	N/A	N/A

Lenovo 7X77A01305 64GB*1

$5,000,000+

Officially Accredited

Next-Gen IT