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 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 |
The computer may emit a series of beeps during start-up
if the errors or problems cannot be displayed. The repetitive beep
codes help the user troubleshoot problems with the computer.
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.