
Power Management-Related  Symptoms
| Symptom / Error | Action in Sequence | 
| 
 | 
 | 
| The system doesn't resume from hibernation/ | Connect AC adapter then check if the system resumes from | 
| standby mode. | Standby/Hibernation mode. | 
| 
 | Check if the battery is low. | 
| 
 | Hard disk drive | 
| 
 | Main board | 
| 
 | 
 | 
| The system doesn't resume from standby mode | LCD cover switch | 
| after opening the lid of the portable computer. | Main board | 
| 
 | 
 | 
| Battery fuel gauge in Windows doesn’t go higher | Refresh battery (continue use battery until power off, then charge | 
| than 90%. | battery). | 
| 
 | Battery pack | 
| 
 | Main board | 
| 
 | 
 | 
| System hangs intermittently. | Reconnect hard  | 
| 
 | Main board | 
| 
 | 
 | 
Peripheral-Related  Symptoms
| Symptom / Error | Action in Sequence | 
| 
 | 
 | 
| System configuration does not match the | Enter BIOS Setup Utility to execute “Load Setup defaults”, then | 
| installed devices. | reboot system. | 
| 
 | Reconnect hard  | 
| 
 | Main board | 
| 
 | 
 | 
| External display does not work correctly. | Press Fn+F5, LCD/CRT/Both display switching | 
| 
 | Keyboard | 
| 
 | Main board | 
| 
 | 
 | 
| USB does not work correctly | See “System Diagnostic Diskette” on page 43 | 
| 
 | Main board | 
| 
 | 
 | 
| Print problems. | Enter BIOS Setup Utility to execute “Load Default Settings” then | 
| 
 | reboot the system. | 
| 
 | Run printer  | 
| 
 | Printer driver | 
| 
 | Printer cable | 
| 
 | Printer | 
| 
 | Main board | 
| 
 | 
 | 
| Parallel port device problems | Enter BIOS Setup Utility to execute “Load Default Settings” then | 
| 
 | reboot the system. | 
| 
 | Device driver | 
| 
 | Device cable | 
| 
 | Device | 
| 
 | Main board | 
| 
 | 
 | 
Keyboard/Touchpad-Related  Symptoms
| Symptom / Error | Action in Sequence | 
| 
 | 
 | 
| Keyboard (one or more keys) does not work. | Reconnect the keyboard cable. | 
| 
 | Keyboard | 
| 
 | Main board | 
| 
 | 
 | 
| Touchpad does not work. | Reconnect touchpad cable. | 
| 
 | Touchpad board | 
| 
 | Main board | 
| 
 | 
 | 
| 70 | Chapter 4 |