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.
The power and battery-status light blinks amber along
with beep codes indicating failures.
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 the different power and battery-status
light patterns and the problems that each light pattern indicate.
Table 1. Light patterns.
Shows the different power and battery-status light patterns
and the problems that each light pattern 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 or video card or chip 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.