IBM System x3250 User Manual page 24

Statement 5:
CAUTION:
The power control button on the device and the power switch on the power
supply 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
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 If an optional Remote Supervisor Adapter II SlimLine is installed in the server, the
v The integrated systems-management processor (mini-BMC) can turn off the
v You can turn off the server through a request from the service processor.
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IBM System x3250 Types 4364 and 4365: User's 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.
server can be turned off from the Remote Supervisor Adapter II SlimLine user
interface.
server as an automatic response to a critical system failure.