8-10 TroubleshootingThe external microphone or audio device does not work.z Make sure that the microphone is connected to the proper connector onthe computer.z Click the speaker symbol on the taskbar and check the Windows volumecontrol.z Check the volume control of your computer.Startup ProblemsWhen you turn on the computer, it does not respond and the PowerIndicator does not light green.z If you are using an external AC power, make sure that the AC adapter iscorrectly and securely connected. If so, make sure that the electricaloutlet works properly.z If you are using the battery power, make sure that the battery is notdischarged.z If your model comes with the “HDD preheat” feature, you will not beable to turn on the system when the hard disk drive is being heated. TheAC Power indicator ( ) lights red to indicate the heater is on. Wait tillthe heating is finished.When you turn on the computer, it stops after POST.z Restart your computer.WLAN ProblemsI cannot use the WLAN feature.z Make sure that the mini PCI-E WLAN card is correctly installed.z Make sure that the WLAN feature is turned on.
