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,
what they indicate, and the suggested solutions.
Light pattern |
Problem description |
Suggested solution |
2,1
|
CPU failure |
Replace the system board. |
2,2
|
System board: BIOS and ROM failure |
Flash latest BIOS version. If problem persists,
replace the system board.
|
2,3
|
No memory or RAM detected |
Confirm that the memory module is installed properly.
If problem persists, replace the memory module.
|
2,4
|
Memory or RAM failure |
Replace the memory module. |
2,5
|
Invalid memory installed |
Replace the memory module. |
2,6
|
System board or chipset error |
Replace the system board. |
2,7
|
LCD failure |
Replace the LCD. |
3,1
|
CMOS battery failure |
Replace the CMOS battery. |
3,2
|
PCI or video card or chip failure |
Replace the CMOS battery. |
3,3
|
Recovery image not found |
Reimage the system. |
3,4
|
Recovery image found but invalid |
Reimage the system. |
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.