Chapter 1. Introduction
The ThinkSystem SR950 V3 server (Types 7DC4, 7DC5, and 7DC6) is a 8U rack server that supports eight 
Intel Xeon processors. It is an enterprise-class server designed for customers requiring eight processors, 
large amounts of memory, and numerous I/O connections.
Figure 1. ThinkSystem SR950 V3
Features
Performance, ease of use, reliability, and expansion capabilities were 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 (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://pubs.lenovo.com/lxcc-overview/.
•  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. 
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