Lenovo ThinkSystem SR645 V3 - Chapter 1 Introduction; Features

Chapter 1. Introduction
The ThinkSystem SR645 V3 server (7D9C, 7D9D) is a 1U rack server designed to be highly flexible to support
many kinds of Information Technology (IT) workloads. This higher performance, multi-core server is ideally
suited for IT environments that require superior processor performance, input/output (I/O) flexibility, and
flexible manageability.
Figure 1. ThinkSystem SR645 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 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).
• Large system-memory capacity
The server supports up to 24 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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