IBM System x3750 M4 Installation And Service Manual page 41

CAUTION:
The power control button on the device do 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:
v 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.
v 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.
v If the operating system stops functioning, you can press and hold the power-on
button for more than 4 seconds to turn off the server.
v The integrated management module (IMM) can turn off the server as an
automatic response to a critical system failure.
Chapter 1. The System x3750 M4 Types 8722 and 8733 server
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