Power and battery-status light/ hard-drive activity
light: Indicates the battery-charge status or the hard-drive activity.
NOTE Press Fn+H to
toggle this light between power and battery-status light and hard-drive
activity light.
Hard-drive activity light
Turns on when the computer reads from or writes to
the hard drive.
Power and battery-status light
Indicates the power and battery-charge status.
Solid white – Power adapter is connected and
the battery has more than 5 percent charge.
Amber – Computer is running on battery and the
battery has less than 5 percent charge.
Off
Power adapter is connected and the battery is fully
charged.
Computer is running on battery and the battery has
more than 5 percent charge.
Computer is in sleep state, hibernation, or turned
off.
For example, the power and battery-status light blinks amber two
times followed by a pause, and then blinks white three times followed
by a pause. This 2,3 pattern continues until the computer is turned
off indicating no memory or RAM is detected.
The following table shows different light patterns
and what they indicate.
Table 1. DiagnosticsThe following table provides the different light
patterns and what they indicate.
Light pattern
Problem description
2,1
CPU failure
2,2
System board: BIOS and ROM failure
2,3
No memory or RAM detected
2,4
Memory or RAM failure
2,5
Invalid memory installed
2,6
System board or chipset error
2,7
LCD failure
3,1
CMOS battery failure
3,2
PCI/video card failure
3,3
Recovery image not found
3,4
Recovery image found but invalid
Camera status light: Indicates whether the camera
is in use.
Solid white – Camera is in use.
Off – Camera is not in use.
Caps Lock status light: Indicates whether Caps
Lock is enabled or disabled.
Solid white – Caps Lock enabled.
Off – Caps Lock disabled.
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