Chapter 1. Introduction
The ThinkSystem SR650 V3 server (7D75, 7D76, 7D77) is a 2-socket 2U rack server, based on the 4th 
generation Intel Xeon Scalable processor family. With a very configuration-rich offering, it is a great choice 
for enterprises of all sizes that need industry-leading reliability, management, and security, as well as 
maximizing performance and flexibility for future growth.
Figure 1. ThinkSystem SR650 V3
Features
Performance, ease of use, reliability, and expansion capabilities are key considerations in the design of your 
server. These design features make it possible for you to customize the system hardware to meet your needs 
today and provide flexible expansion capabilities for the future.
Your server implements the following features and technologies: 
•  Features on Demand
If a Features on Demand feature is integrated in the server or in an optional device that is installed in the 
server, you can purchase an activation key to activate the feature. For information about Features on 
Demand, see: 
https://fod.lenovo.com/lkms
•  Lenovo XClarity Controller (XCC)
The Lenovo XClarity Controller is the common management controller for Lenovo ThinkSystem server 
hardware. The Lenovo XClarity Controller consolidates multiple management functions in a single chip on 
the server system board assembly. Some of the features that are unique to the Lenovo XClarity Controller 
are enhanced performance, higher-resolution remote video, and expanded security options.
The server supports Lenovo XClarity Controller 2 (XCC2). For additional information about Lenovo XClarity 
Controller 2 (XCC2), refer to 
https://sysmgt.lenovofiles.com/help/topic/lxcc_frontend/lxcc_overview.html.
•  UEFI-compliant server firmware
Lenovo ThinkSystem firmware is Unified Extensible Firmware Interface (UEFI) compliant. UEFI replaces 
BIOS and defines a standard interface between the operating system, platform firmware, and external 
devices. 
Lenovo ThinkSystem servers are capable of booting UEFI-compliant operating systems, BIOS-based 
operating systems, and BIOS-based adapters as well as UEFI-compliant adapters.
Note: The server does not support Disk Operating System (DOS).
•  Large system-memory capacity
The server supports up to 32 TruDDR5 memory DIMMs operating at up to 4800 MHz. For more 
information about the specific types and maximum amount of memory, see 
“Technical specifications” on 
page 3.
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