IBM System x3755 Types 7163 Installation Manual page 39

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 be turned off automatically.
v You can press the power-control 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-control button for more than 4 seconds to turn off the server.
v If an optional Remote Supervisor Adapter II SlimLine is installed in the server, the
server can be turned off from the Remote Supervisor Adapter II SlimLine user
interface.
v You can turn off the server through a request from the service processor.
Chapter 3. Server controls, connectors, LEDs, and power
27