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.
Table 1. Diagnostics.
The 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 |
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.