10 chapter 2 getting to know your computer – HP ProBook 645 G1 Notebook PC User Manual
Page 20

Component
Description
(2)
Power light
●
On: The computer is on.
●
Blinking: The computer is in the Sleep state.
●
Off: The computer is off.
(3)
AC adapter/Battery light
●
White: The computer is connected to external
power and the battery is charged from 90 to 99
percent.
●
Amber: The computer is connected to external
power and the battery is charged from 0 to 90
percent.
●
Blinking amber: A battery that is the only
available power source has reached a low
battery level. When the battery reaches a critical
battery level, the battery light begins blinking
rapidly.
●
Off: The battery is fully charged.
(4)
Hard drive light
●
Blinking white: The hard drive is being accessed.
●
Amber: HP 3D DriveGuard has temporarily
parked the hard drive.
10
Chapter 2 Getting to know your computer