DiagnosticsPower and battery-status light/hard-drive activity lightIndicates the battery-charge status or the hard-drive activity.NOTE: Press Fn+H to toggle this light between power and battery-statuslight and hard-drive activity light.Hard-drive activity lightTurns on when the computer reads from or writes to the hard drive.Power and battery-status lightIndicates the power and battery-charge status.Solid white — Power adapter is connected and the battery has more than 5 percentcharge.Amber — Computer is running on battery and the battery has less than 5 percentcharge.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 indicatingfailures.For example, the power and battery-status light blinks amber two times followed by apause, and then blinks white three times followed by a pause. This 2,3 patterncontinues 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 andthe problems that each light pattern indicate.Table 3. Light patternsLight pattern Problem description2,1 CPU failure2,2 System board: BIOS and ROM failure2,3 No memory or RAM detected105
