Power and battery-status light/hard-drive activity light
Indicates the battery-charge status or the hard-drive activity.
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.
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 describes what they indicate.
|Light pattern||Problem description|
|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|
|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|
|3,5||Power rail failure|
|3,6||SBIOS flash corruption|
|3,7||Timeout waiting on ME to reply to HECI message|
Camera status light: Indicates whether the camera is in use.
Caps Lock status light: Indicates whether Caps Lock is enabled or disabled.