Power Management Related Symptoms

Symptom/Error

Action in Sequence

The system will not enter hibernation.

Keyboard (if control is from the keyboard) Hard disk drive System board

The system does not enter hibernation mode and four short beeps every minute.

Press Fn + F4 and see if the computer enters hibernation mode.

Touchpad

Keyboard

Hard disk connection board Hard disk drive System board

The system does not enter standby mode after closing the LCD.

LCD cover switch System board

The system does not resume from hibernation mode.

Hard disk connection board Hard disk drive System board

The system does not resume from standby mode after opening the LCD.

LCD cover switch System board

Battery fuel gauge in Windows does not go higher than 90%.

Remove battery pack and let it cool for two hours. Refresh battery (continue to use battery until power off, then charge battery). Battery pack System board

System hangs intermittently.

Reconnect hard disk/CD-ROM drives. Hard disk connection board System board

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