Dell PowerEdge C6220 Hardware Owner's Manual page 26

Item Indicator, Button
Or Connector
10 Power-on indicator/
system state indicator/
power button
26 | About Your System
Icon Description
The power-on indicator turns to
green when the system power is
on.
The power-on indicator turns to
amber when the system critical
event occurs.
The power button controls the
DC power supply output to the
system.
NOTE: When powering on the
system, the video monitor can take
from several seconds to over 2
minutes to display an image,
depending on the amount of
memory installed in the system.
NOTE: On ACPI-compliant
operating systems, turning off the
system using the power button
causes the system to perform a
graceful shutdown before power to
the system is turned off.
NOTE: To force an ungraceful
shutdown, press and hold the
power button for five seconds.