Power-Related Symptoms
Symptom / Error | Action in Sequence |
|
|
Battery can’t be charged or discharged | See “Check the Battery Pack” on page 96. |
| Battery pack |
| Main board |
|
|
System hang during POST | ODD/HDD/FDD/RAM module |
| Main board |
|
|
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 |
|
|
PC Card cannot be inserted or ejected | Check if the PCMCIA slot is blocked |
| Main board |
|
|
Memory-Related Symptoms
Symptom / Error | Action in Sequence |
|
|
Memory count (size) appears different from | Enter BIOS Setup Utility to execute “Load Default Settings” then |
actual size. | reboot system. |
| RAM module |
| Main board |
| Check BIOS revision |
|
|
System can power on, but you hear two long | Reinsert DIMM |
beeps: | DIMM |
| Main board |
|
|
Speaker-Related Symptoms
Symptom / Error | Action in Sequence |
|
|
In Windows, multimedia programs, no sound | OS volume control |
comes from the computer. | Audio driver |
| Speaker |
| Main board |
|
|
Internal speakers make noise or emit no sound. | Speaker |
| Main board |
|
|
Microphone cannot work | Audio driver |
| Volume control in Windows XP |
| Main board |
|
|
Power Management-Related Symptoms
Symptom / Error | Action in Sequence |
|
|
The system will not enter hibernation mode | Power option in Windows XP |
| Hard disk drive |
| Main board |
|
|
The system doesn’t enter standby mode after | Driver of Power Option Properties |
closing the lid of the portable computer. | Lid close switch in upper case |
| Main board |
|
|
Chapter 4 | 105 |