Dell Inspiron 510M Owner's Manual page 14

If the computer stops responding, press and hold the power button until the computer turns off completely
(which may take several seconds).
D E V I C E S T A T U S L I G H T S
Turns on when you turn on the computer and blinks when the computer is
in a power management mode.
Turns on when the computer reads or writes data.
Turns on steadily or blinks to indicate battery charge status.
Turns on when Bluetooth
NOTE:
turns on only if you ordered Bluetooth wireless technology with your
computer. For more information, see the documentation that came with your
Bluetooth wireless technology.
To turn off only the Bluetooth wireless technology functionality, right-click
the
To quickly enable or disable all wireless devices, press <Fn><F2>.
14
A Tour of Your Computer
NOTICE:
To avoid loss of data, never turn off the computer while
the light is flashing.
®
wireless technology is enabled.
Bluetooth wireless technology is an optional feature, so the
icon in the notification area and select Disable Bluetooth Radio.
light