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Chapter 4
PCMCIA-Related Symptoms
Symptom / Error
Action in Sequence
System cannot detect the PC Card
(PCMCIA)
PCMCIA slot assembly
Main board
PCMCIA slot pin is damaged.
PCMCIA slot assembly
Memory-Related Symptoms
Symptom / Error
Action in Sequence
Memory count (size) appears different from
actual size.
DIMM
Main board
Speaker-Related Symptoms
Symptom / Error
Action in Sequence
In Windows, multimedia programs, no
sound comes from the computer.
See “Sound Check” on page 66
Audio driver
Speaker
Main board
Internal speakers make noise or emit no
sound.
See “Sound Check” on page 66
Speaker
Main board
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
Main board
The system doesn't 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
Main board
The system doesn’t enter standby mode
after closing the LCD
LCD cover switch
Main board
The system doesn't resume from
hibernation mode.
Hard disk connection board
Hard disk drive
Main board
The system doesn't resume from standby
mode after opening the LCD.
LCD cover switch
Main 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
Main board