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Server power features
This section contains information about how to properly turn your server on and off.
Turning on the server
Statement 13:
DANGER
After you plug one end of each server power cord into the power-supply outlet on
the rear of the server and the other end of each power cord into an electrical outlet,
the server can start in any of the following ways:
v You can press the power-control button on the front of the server to start the
v If the server is turned on and a power failure occurs, the server will start
v If ac power is present, the server is in Standby mode, and the server is
v If ac power is present, the server is in Standby mode, and an optional Remote
v When you plug in your server for the first time, the Wake on LAN feature can
v If your server was previously turned on, it must be properly placed in Standby
v If your operating system supports the Preboot eXecution Environment (PXE)
28
IBM xSeries 255 Type 8685: Installation Guide
Overloading a branch circuit is potentially a fire hazard and a shock hazard
under certain conditions. To avoid these hazards, ensure that your system
electrical requirements do not exceed branch circuit protection
requirements. Refer to the information that is provided with your device for
electrical specifications.
server.
Notes:
1. You can install a circular disk over the power-control button to prevent
accidental manual power-off. This disk, known as the power-control button
shield, comes with your server.
2. After you plug the power cords of your server into the electrical outlets, wait
approximately 20 seconds before pressing the power-control button. During
this time, the ISMP is initializing; therefore, the power-control button does not
respond.
automatically when power is restored.
connected to an Advanced System Management (ASM) interconnect network,
which contains at least one system with an optional Remote Supervisor Adapter
installed, the server can be turned on from the Remote Supervisor Adapter user
interface.
Supervisor Adapter is installed in the server, the server can be turned on from
the Remote Supervisor Adapter user interface.
turn on the server.
mode for the Wake on LAN feature to turn on the server.
option and the PXE option is enabled through the Planar Ethernet PXE/DHCP
menu choice under Start Options on the Configuration/Setup Utility program
menu, the integrated Gigabit Ethernet controller can turn on the server.
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