Chapter 4
81
The system doesn’t
power-off.
Power source (battery pack and power adapter). See
Power
System Check
.
Hold and press the power switch for more than 4 seconds.
System board
Battery can’t be charged.
See
Check the Battery Pack
.
Battery pack
System board
PCMCIA-Related Symptoms
Symptom/Error
Action in Sequence
System cannot detect the
PC Card (PCMCIA).
PCMCIA slot assembly
System 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.
Enter BIOS Setup Utility to execute
Load Default Settings
,
then reboot system.
DIMM
System board
Speaker-Related Symptoms
Symptom/Error
Action in Sequence
In Windows, multimedia
programs, no sound
comes from the computer.
Audio driver
Speaker
System board
Internal speakers make
noise or emit no sound.
Speaker
System 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
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
Power-Related Symptoms
Symptom/Error
Action in Sequence