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Chapter 4 81
Power Management-Related Symptoms
Symptom / Error Action in Sequence
The system will not enter hibernation See “Save to Disk (S4)” on page 22
Keyboard (if control is from the keyboard)
Hard disk drive
System board
The system doesn't enter hibernation mode and four
short beeps every minute.
Press Fn+
oand see if the computer enters
hibernation mode.
Touchpad
Keyboard
Hard disk connection board
Hard disk drive
System board
The system doesn’t enter standby mode after
closing the LCD
See “Save to Disk (S4)” on page 22.
LCD cover switch
System board
The system doesn't resume from hibernation mode. See “Save to Disk (S4)” on page 22.
Hard disk connection board
Hard disk drive
System board
The system doesn't resume from standby mode
after opening the LCD.
See “Save to Disk (S4)” on page 22.
LCD cover switch
System board
Battery fuel gauge in Windows doesn’t go higher
than 90%.
Remove battery pack and let it cool for 2 hours.
Refresh battery (continue 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