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If Something Goes Wrong

Resolving a hardware conflict

 

 

 

High-capacity battery, and real-time clock (RTC) battery). Power problems are interrelated. For example, a faulty AC adapter or power cable will neither power the computer nor recharge the batteries.

Here are some typical problems and how to solve them:

The AC power light does not come on when you plug in the AC adapter and power cable.

Make sure the AC adapter and power cable are firmly plugged into both the wall outlet and the computer.

If the AC power light still does not come on, check that the wall outlet is working properly by plugging in a lamp or other appliance.

The AC adapter and power cable work correctly, but the main battery will not charge.

The main battery doesn’t charge while the computer is consuming full power. Try turning off the computer.

The main battery may not be inserted correctly in the computer. Turn off the computer, remove the main battery, clean the contacts with a soft dry cloth (if necessary) and replace the main battery.

The main battery may be too hot or too cold to charge properly. Its temperature needs to be in the range of 50 degrees to 88 degrees Fahrenheit (10 degrees to 30 degrees Celsius). If you think this is the probable cause, let the main battery reach room temperature and try again.

If the main battery has completely discharged, it will not begin charging immediately. Leave the AC adapter and power cable connected, wait 20 minutes and see whether the main battery is charging.

If the main battery light is glowing after 20 minutes, let the computer continue charging the main battery for at least another 20 minutes before you turn on the computer.