96 Troubleshooting 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 doesn't enter
hibernation mode and four
short beeps every minute.
See “Hibernation Mode” on page 39.
Press Fn+F4 and see if the computer ent er s
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 “Standby Mode” on pag e 39.
LCD cover switch
System board
The system doesn't resume
from hibernation mode. See “Hibernation Mode” on page 39.
Hard disk connection board
Hard disk drive
System board
The system doesn't resume
from standby mode af ter
opening the LCD.
See “Standby Mode” on pag e 39.
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 intermitten tly. See “Set Thermal Sensor Threshold” on page 58.
Reconnect hard disk/CD-RO M drives.
Hard disk connection board
System board