Dell Inspiron 519 Quick Reference Manual page 23

Controls and Lights
Front of the computer
Power button
Power light
Drive activity light
Inspiron 518/519
Push button
Blue light — Blinking blue indicates that
the computer is in sleep state; solid blue
indicates power-on state.
Amber light — Blinking amber indicates a
problem with the system board. A solid
amber light when the system does not
boot indicates that the system board
cannot start initialization. This could be
an issue with the system board or power
supply (see "Power Problems" on
page 35).
Blue light — A blinking blue light
indicates the computer is reading data
from or writing data to to the SATA hard
drive or the optical drive.
Specifications
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