Lenovo E40-70 Notebook - Manual (Page 51)

Chapter 8. Troubleshooting computer problems
This chapter provides information on what to do if you experience a problem with your computer.
Troubleshooting
To make sure that your computer has the features that are introduced in the following sections, consult the
online help or the list shipped with your computer.
Battery and power problems
This topic provides instructions on troubleshooting battery and power problems.
Print these instructions first.
The computer turns off before the battery status indicator shows empty, or the computer operates
after the battery status indicator shows empty.
Reset the battery gauge using Lenovo Energy Management. If the problem persists, replace with a new
battery pack.
The operating time of a fully charged battery pack is short.
Discharge and recharge the battery pack. If the problem persists, use a new battery pack.
The computer does not operate with a fully charged battery pack.
The surge protector in the battery pack might be active. Turn off the computer for one minute to disable the
surge protector; then turn on the computer again.
The battery pack cannot be charged.
You cannot charge the battery when it is too hot. If the battery is hot, remove it from the computer and let it
cool to room temperature. After it cools, reinstall it and recharge the battery pack. If the problem persists,
contact your local Customer Support Center.
The ac power adapter is connected to both the computer and the working electrical outlet, but the ac
power adapter icon is not displayed in the Windows notification area, and the ac power indicator
does not light up.
Do the following:
1. Turn off the computer, and then disconnect the ac power adapter and remove the main battery pack.
2. Reinstall the battery and reconnect the ac power adapter, then turn on the computer. Ensure that the ac
power adapter is correctly and securely connected.
3. Turn on the computer.
If the problem persists, contact your local Customer Support Center.
A startup problem
Print these instructions now and keep it with your computer for reference later.
The Microsoft Windows operating system does not start.
Use the recovery program provided on your computer to identify and troubleshoot the problem. For details,
refer to Chapter 5 “Lenovo OneKey Recovery system” on page 21.
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