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.
Some of the features that are unique to the Lenovo XClarity Controller are enhanced performance, higher-
resolution remote video, and expanded security options. For additional information about the Lenovo
XClarity Controller, refer to the XCC documentation compatible with your server at:
https://sysmgt.lenovofiles.com/help/topic/lxcc_frontend/lxcc_overview.html
Important: Lenovo XClarity Controller (XCC) supported version varies by product. All versions of Lenovo
XClarity Controller are referred to as Lenovo XClarity Controller and XCC in this document, unless
specified otherwise. To see the XCC version supported by your server, go 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 DOS (Disk Operating System).
• Active Memory
The Active Memory feature improves the reliability of memory through memory mirroring. Memory
mirroring mode replicates and stores data on two pairs of DIMMs within two channels simultaneously. If a
failure occurs, the memory controller switches from the primary pair of memory DIMMs to the backup pair
of DIMMs.
• Large system-memory capacity
The server supports synchronous dynamic random-access memory (SDRAM) registered dual inline
memory modules (DIMMs) with error correcting code (ECC). For more information about the specific types
and maximum amount of memory, see “Specifications” on page 3.
• Integrated network support
The server comes with an integrated 2-port Gigabit Ethernet controller, which supports connection to a 10
Mbps, 100 Mbps, or 1000 Mbps network. In the initial server configuration, Ethernet 1 and Ethernet 2 are
activated.
• Integrated Trusted Platform Module (TPM)
This integrated security chip performs cryptographic functions and stores private and public secure keys.
It provides the hardware support for the Trusted Computing Group (TCG) specification. You can
download the software to support the TCG specification.
Trusted Platform Module (TPM) has two versions - TPM 1.2 and TPM 2.0. You can change the TPM
version from 1.2 to 2.0 and back again.
For more information on TPM configurations, see “Enable TPM/TCM” in the Maintenance Manual.
2
ThinkSystem SR250 Setup Guide
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