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Chapter 2. Using the System Unit
Starting the System Unit
1. Set the power switches of the attached devices to On.
Note: When the system is plugged in but not powered on, the Power On LED
flashes slowly.
2. Press the Power On switch.
When you press the Power On switch, the Power On LED comes on and the
system starts a POST (power-on self test).
During POST, progress codes display in the operator panel display.
3. If the Power On light does not come on and there is no indication of power when
you press the Power On switch, ensure that the power cord, located at the back
of the system unit, is plugged into a grounded electrical outlet. If this does not
solve the problem, go to Chapter 9, “Hardware Problem Determination” on
page 9-1. If the LED is not flashing and OK is not displayed in the display, go to
the section on running the diagnostics.
Stopping the System Unit
Attention: When using the shutdown procedure for your system, enter the correct
command before you stop the system unit. Failure to do so may result in the loss of
Chapter 2. Using the System Unit 2-1