Symptom

Action

 

 

The wireless keyboard or mouse

Verify that:

does not work.

• The computer is turned on.

 

 

• The battery or batteries installed in the wireless keyboard or mouse are in good

 

condition.

 

• The wireless configurations are all set correctly. You might need to refer to

 

the documentation that come with the wireless keyboard or mouse, or refer

 

to your Windows Help and Support information system for wireless related

 

instructions. If your wireless mouse has a dongle, make sure the dongle is

 

correctly connected to one of the USB connectors on the computer.

 

• For the wireless keyboard, no keys are stuck.

 

• The wireless mouse is clean.

 

 

The operating system does not

Verify that:

start.

• The startup sequence includes the device where the operating system resides.

 

 

Usually, the operating system is on the hard disk drive. For more information,

 

see “Selecting a startup device” on page 57.

 

 

The computer beeps multiple

Verify that no keys are stuck.

times before the operating

 

system starts.

 

 

 

Accessing Control Panel on the Windows 8 operating system

On the Windows operating system, you can view and change computer settings through Control Panel. To access Control Panel on the Windows 8 operating system, do one of the following:

From the desktop

1.Move the cursor to the top-right or bottom-right corner of the screen to display the charms.

2.Click Settings.

3.Click Control Panel.

From the Start screen

1.Move the cursor to the top-right or bottom-right corner of the screen to display the charms.

2.Click Search.

3.On the Apps screen, scroll to the right side, and click Control Panel in the Windows System section.

Troubleshooting procedure

Use the following procedure as a starting point for diagnosing problems you are experiencing with your computer:

1.Verify that the cables for all attached devices are connected correctly and securely.

2.Verify that all attached devices that require ac power are connected to properly grounded, functioning electrical outlets.

3.Verify that all attached devices are enabled in the BIOS settings of your computer. For more information about accessing and changing the BIOS settings, refer to your Chapter 6 “Using the Setup Utility program” on page 55.

4.Go to the “Troubleshooting” on page 37 and follow the instructions for the type of problem you are experiencing. If the Troubleshooting information does not help you resolve a problem, continue with the next step.

5.Try using a previously captured configuration to see if a recent change to hardware or software settings has caused a problem. Before restoring a previous configuration, capture your current configuration in

36ThinkCentre Hardware Maintenance Manual

Page 42
Image 42
Lenovo 5150, 5106, 5114, 5110 manual Accessing Control Panel on the Windows 8 operating system, Troubleshooting procedure