Lenovo ThinkServer TD200 Installation And User Manual page 54

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
v You can press the power-control button to start an orderly shutdown of the
v If the operating system stops functioning, you can press and hold the
v The integrated management module (IMM) can turn off the server as an
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ThinkServer TD200 Types 3724, 3808, 3809, 3815, 3817, 3824, 3826, 3836: Installation and User Guide
supports this feature. After an orderly shutdown of the operating system, the
server will be turned off automatically.
operating system and turn off the server, if your operating system supports this
feature.
power-control button for more than 4 seconds to turn off the server.
automatic response to a critical system failure.