Connect a 9-pin serial device to this connector. The serial port is shared with the XCC. The XCC can take
control of the shared serial port to redirect serial traffic, using Serial over LAN (SOL).
16
VGA connector:
Connect a monitor to this connector.
Notes:
• When the optional front VGA connector is in use, the rear one will be disabled.
• The maximum video resolution is 1920 x 1200 at 60 Hz.
17
XClarity Controller network connector:
Use this connector to manage the server, by using a dedicated management network. If you use this
connector, the Lenovo XClarity Controller cannot be accessed directly from the production network. A
dedicated management network provides additional security by physically separating the management
network traffic from the production network. You can use the Setup utility to configure the server to use a
dedicated systems-management network or a shared network.
18
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.
24
ThinkSystem SR850P Maintenance Manual
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