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.
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 4 TruDDR5 DIMMs operating at up to 4800 MHz. For more information about
the specific types and maximum amount of memory, see
“Technical specifications” on page 4.
• 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.
• Large data-storage capacity and hot-swap capability
With the hot-swap feature, you can add, remove, or replace hard disk drives without turning off the server.
The hot-swap server models support a maximum of sixteen 2.5-inch hot-swap or eight 3.5-inch hot-swap
Serial Attached SCSI (SAS) hard disk drives or hot-swap Serial ATA (SATA) hard disk drives. For some
models, you can install up to eight 2.5-inch hot-swap drives and four 3.5-inch hot-swap drives into the
same server.
The simple-swap server models support a maximum of eight 3.5-inch simple-swap SATA drives or six 3.5-
inch simple-swap SATA with optical drives.
See
“Technical specifications” on page 4 for more information.
• Lightpath Diagnostics
Lightpath Diagnostics provides LEDs to help you diagnose problems. For more information about the
Lightpath Diagnostics, see
“Troubleshooting by system LEDs and diagnostics display” on page 30.
• Mobile access to Lenovo Service Information website
The server provides a QR code on the system service label, which is on the cover of the server, that you
can scan using a QR code reader and scanner with a mobile device to get quick access to the Lenovo
Service Information website. The Lenovo Service Information website provides additional information for
parts installation, replacement videos, and error codes for server support.
• Active Energy Manager
2
ThinkSystem ST250 V3 System Configuration Guide
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