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 The server can be turned off by Wake on LAN feature with the following
limitation:
Note: When you install any PCI adapter, the power cords must be disconnected
from the power source before you remove the PCI Express assembly and
the PCI-X assembly. Otherwise, the active power management event
signal will be disabled by the system-board logic, and the Wake on LAN
feature might not work. However, after the server is powered-on locally,
the active power management event signal will be enabled by the
system-board logic.
v The integrated management module II (IMM2) can turn off the server as an
automatic response to a critical system failure.
v The server turns off when the left-side cover is opened.
28 IBM System x3500 M4 Type 7383: Installation and User’s Guide