Lenovo System x3850 X6 Installation And Service Manual page 54

down; however, the server can respond to requests to the service processor, such as a remote request to
turn on the server. The power-on LED flashes and indicates that the server is connected to input power but is
not turned on.
Turning on the server
This topic provides information about starting the server.
Approximately 5 seconds after the server is connected to input power, one or more fans might start running
and the power-on LED flashes quickly. After the power-on button becomes active, the power-on LED flashes
one flash per second. You can turn on the server by pressing the power-on button.
If a system input power source failure occurs while the server is turned on, the server will restart
automatically when power is restored.
Note: To disable this feature in the server Setup utility (see "Using the Setup utility" on page 123), select
System Settings → Integrated Management Module → Power Restore Policy.
Turning off the server
This topic provides information about turning off the server.
When you turn off the server and leave it connected to input power, the server can respond to requests to the
service processor (the integrated management module), such as a remote request to turn on the server.
While the server remains connected to input power, one or more fans might continue to run. To remove all
power from the server, you must disconnect it from the power source.
Some operating systems require an orderly shutdown before you turn off the server. See your operating-
system documentation for information about shutting down the operating system.
Statement 5
CAUTION:
The power control button on the device does not turn off the electrical current supplied to the device.
The device also might have more than one power cord. To remove all electrical current from the
device, ensure that all power cords are disconnected from the power source.
The server can be turned off in any of the following ways:
• You can turn off the server from the operating system, if your operating system supports this feature. After
an orderly shutdown of the operating system, the server will turn off automatically.
• You can press the power-on button to start an orderly shutdown of the operating system and turn off the
server, if your operating system supports this feature.
40
System x3850 X6 and x3950 X6 Installation and Service Guide