Dell PowerEdge T300 Series Hardware Owner's Manual page 14

Table 1-2. Front-Panel Components
Item Component
1 3.5-inch drive bay
2 lower 5.25-inch drive
bay
3 upper 5.25-inch drive
bay
4 power button
5 NMI button
6 System identification
button
14
About Your System
Icon Description
Holds an optional diskette drive.
Holds an optional optical drive or
tape backup unit.
Holds an optical drive.
The power button controls the DC
power supply output to the system.
NOTE:
the power button and the system is
running an ACPI-compliant operating
system, the system performs a
graceful shutdown before the power
is turned off. If the system is not
running an ACPI-compliant operating
system, the power is turned off
immediately after the power button is
pressed.
Used to troubleshoot software and
device driver errors when using
certain operating systems. This
button can be pressed using the end
of a paper clip.
Use this button only if directed to
do so by qualified support personnel
or by the operating system's
documentation.
The identification buttons on the
front and back panels can be used to
locate a particular system within a
rack. When one of these buttons is
pushed, the LCD panel on the front
and the blue system status indicator
on the back blink until one of the
buttons is pushed again.
If you turn off the system using