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3
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4
bays
Install hot-swap power supply units to these bay, connect them to power cords. Make sure the power cords
are connected properly. See "Install a hot-swap power supply unit" in ThinkSystem SR250 V3 User Guide or
ThinkSystem SR250 V3 Hardware Maintenance Guide.
5
NMI button
Press this button to force a nonmaskable interrupt to the processor. You might have to use a pen or the end
of a straightened paper clip to press the button. You can also use it to force a blue-screen memory dump.
Use this button only when you are directed to do so by Lenovo Support.
6
USB 3.2 Gen 1 (5 Gbps) connectors
The USB 3.2 Gen 1 (5 Gbps) connectors are direct connect interfaces (DCIs) for debugging, which can be
used to attach a USB-compatible device, such as a USB keyboard, USB mouse, or USB storage device.
7
Ethernet connector 2
Attach an Ethernet cable for LAN. Each Ethernet connector has two status LEDs to help you identify the
Ethernet connectivity and activity.
Ethernet connector 1 (shared with XCC network port)
8
Attach an Ethernet cable for LAN. Each Ethernet connector has two status LEDs to help you identify the
Ethernet connectivity and activity. If the LOM adapter is not installed, Ethernet connector 1 can be set as
Lenovo XClarity Controller Network connector. To set Ethernet connector 1 as Lenovo XClarity Controller
Network connector, start Setup Utility and select BMC Settings ➙ Network Settings ➙ Network Settings
Network Interface Port : Shared. Then, click Shared NIC on and select Onboard Port 1.
9
XCC system management port (1 GB RJ-45)
The server has a 1 GB RJ-45 connector dedicated to Lenovo XClarity Controller (XCC) functions. Through
the system management port, you can access the Lenovo XClarity Controller directly by connecting your
laptop to the management port using an Ethernet cable. Make sure that you modify the IP settings on the
laptop so that it is on the same network as the server default settings. A dedicated management network
provides additional security by physically separating the management network traffic from the production
network.
See the following for more information:
•
"Set the network connection for the Lenovo XClarity Controller" on page 49
•
"XCC system management port LEDs" on page 37
10
VGA connector
Connect a monitor to this connector.
11
Serial port
Connect a 9-pin serial device to this connector. The serial port is shared with XCC. XCC can take control of
the shared serial port to redirect serial traffic, using Serial over LAN (SOL).
Top view
This section contains information on the top view of the server.
Note: Depending on the configuration, your server might be slightly different from the image.
ThinkSystem SR250 V3 System Configuration Guide
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