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Installation and operation
5.2Switching the system unit on/off
VCAUTION!
●Before switching the system unit on using the On/Off button, the PRIMERGY BX900 S1 system unit must be connected to the power supply for at least a minute.
●If you switch on the system unit and the connected monitor only shows flickering stripes, switch it back off immediately (see chapter "Troubleshooting and tips" on page 77).
●The On/Off button does not disconnect the device from the mains. To fully disconnect it from the mains, you must unplug the plugs from the sockets.
●Turn the server on when the temperature is in its operating environment range
●Be sure to wait for 10 seconds or more after shutdown before turning the server on.
●After connecting power cable, press the On/Off button after it passes for more than 10 seconds.
Switching on the system unit
ÊPress the On/Off button on the system unit (position 4 in figure 14 on page 60) for 2 seconds. Depending on the BIOS setting, the individual server blades will also be switched on. This is done in sequence according to the numbering of the server blade slots (see figure 19 on page 83.)
ÊIf necessary, switch on the required server blades
The system unit is switched on and the activated server blades perform a system test and boot the operating system.
Switching off the system unit
The system unit is up and running (server blades are also switched on).
68 | Operating Manual | BX900 S1 |