Chapter 1. Introduction
The ThinkSystem SR850 V3 server (Types 7D96, 7D97, and 7D98) is a 2U rack server designed for high- 
volume network transaction processing. This high-performance, multi-core server is ideally suited for 
networking environments that require superior microprocessor performance, input/output (I/O) flexibility, and 
high manageability.
Figure 1. ThinkSystem SR850 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://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).
•  Active Memory
The Active Memory feature improves the reliability of memory through memory mirroring. Memory 
mirroring mode replicates and stores data on one or two DIMMs within the channel (DIMM configuration 
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